This marine geologic map covers the western half of the Isla Caja de Muertos shelf off the south coast of Puerto Rico. Coverage extends from Playa de Ponce on the west to Punta Petrona, near the town of Santa Isabel, on the east, a distance of 26 km. Within the mapped area the shelf ranges in width from a minimum of 4 km to a maximum of 18 km. Clover (1971, p. 89) named the shelf for the prominent Isla Caja de Muertos, a small upfaulted block of lower and middle Tertiary rocks located near the center of the map area. The Isla Caja de Muertos shelf is not known to be bounded by faults, though Glover suggested faults on the west and south boundaries, and the bathymetry of the insular slope reveals a large east-west fault about 6 to 8 km south of the shelf edge.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr80366","usgsCitation":"Beach, D.K., and Trumbull, J.V., 1980, Marine geologic map of the Puerto Rico insular shelf, Isla Caja de Muertos area: U.S. Geological Survey Open-File Report 80-366, Report: 17 p.; 1 Plate: 29.27 x 40.88 inches, https://doi.org/10.3133/ofr80366.","productDescription":"Report: 17 p.; 1 Plate: 29.27 x 40.88 inches","costCenters":[],"links":[{"id":495530,"rank":4,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1980/0366/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":495529,"rank":3,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1980/0366/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":397484,"rank":2,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_43301.htm"},{"id":141283,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1980/0366/report-thumb.jpg"}],"scale":"40000","country":"United States","state":"Puerto Rico","otherGeospatial":"Isla Caja de Muertos area","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -66.625,\n 17.75\n ],\n [\n -66.375,\n 17.75\n ],\n [\n -66.375,\n 18\n ],\n [\n -66.625,\n 18\n ],\n [\n -66.625,\n 17.75\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a1ae4b07f02db6064c5","contributors":{"authors":[{"text":"Beach, David K.","contributorId":34128,"corporation":false,"usgs":true,"family":"Beach","given":"David","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":156721,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Trumbull, James V.","contributorId":106900,"corporation":false,"usgs":true,"family":"Trumbull","given":"James","email":"","middleInitial":"V.","affiliations":[],"preferred":false,"id":156722,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":23784,"text":"ofr80645 - 1980 - Outer continental shelf oil and gas activities in the Pacific (Southern California) and their onshore impacts: a summary report, May 1980","interactions":[],"lastModifiedDate":"2013-12-13T14:15:10","indexId":"ofr80645","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1980","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"80-645","title":"Outer continental shelf oil and gas activities in the Pacific (Southern California) and their onshore impacts: a summary report, May 1980","docAbstract":"Outer Continental Shelf (OCS) oil and gas exploration and development have been under way in the Pacific (Southern California) Region since 1966. During that time, there have been four Federal lease sales: in 1966, 1968, 1975 (Sale 35), and 1979 (Sale 48). Oil and gas production from three leases has been going on since 1968. It peaked in 1971 and now averages around 31,400 barrels of oil and 15.4 million cubic feet of gas per day. Discoveries on areas leased in the 1968 and 1975 sales have led to plans for eight new platforms to begin production in the early 1980's. Five platforms are in the eastern end of Santa Barbara Channel, one is in the western Channel, and two are in San Pedro Bay, south of Long Beach. Three rigs are doing exploratory drilling in the Region.
\nThe most recent estimates by the U.S. Geological Survey of remaining reserves for all identified fields in the Southern California Region are 695 million barrels of oil and 1,575 billion cubic feet of gas (January 1979). The USGS has also made risked estimates of economically recoverable oil and gas resources for all the leased tracts in the Region (March 1980). These risked estimates of economically recoverable resources are 394 billion barrels of oil and 1,295 billion cubic feet of gas. The USGS estimates of undiscovered recoverable resources for the entire Southern California OCS Region (January 1980) are 3,200 million barrels of oil and 3,400 billion cubic feet of gas.
\nBecause of the long history of oil and gas production in Southern California from wells onshore and in State waters, there are many existing facilities for the transportation, processing, and refining of oil and gas. Some of the expected new OCS production can be accommodated in these facilities. Four new onshore projects will be required. Two of these are under construction: (1) a 9.6-km (6-mi) onshore oil pipeline (capacity: 60,000 bpd) between Carpinteria (Santa Barbara County) and the existing Mobil-Rincon separation and treatment facility (Ventura County), and (2) a small supply base and dock (upgrade of existing facility) and a 0.4-hectare (1-acre) crude oil distribution facility in Long Beach (Los Angeles County), connected to landfall by a 3-km (1.8-mi) onshore pipeline. The two other facilities are awaiting permit approval: (1) a gas treatment plant at Las Flores Canyon (Santa Barbara County) and (2) a separation and treatment plant at Mandalay Beach (Ventura County) with 4 km (2.5 mi) of onshore pipeline on the same right-of-way from landfall to the plant and from the plant to an existing gas transmission line.
","language":"English","publisher":"Rogers, Golden & Halpern, Inc.","publisherLocation":"Philadelphia, PA","doi":"10.3133/ofr80645","issn":"0094-9140","collaboration":"Prepared for the U.S. Department of the Interior, Geological Survey, in cooperation with the Bureau of Land Management and the Council of Environmental Quality under Contract No. EQ9AC006, by Rogers, Golden & Halpern, Inc.","usgsCitation":"Macpherson, G.S., and Bernstein, J., 1980, Outer continental shelf oil and gas activities in the Pacific (Southern California) and their onshore impacts: a summary report, May 1980: U.S. Geological Survey Open-File Report 80-645, xi, 134 p., https://doi.org/10.3133/ofr80645.","productDescription":"xi, 134 p.","numberOfPages":"148","costCenters":[],"links":[{"id":157162,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1980/0645/report-thumb.jpg"},{"id":279459,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1980/0645/report.pdf"}],"country":"United States","state":"California","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -121.0748,30.7489 ], [ -121.0748,34.5156 ], [ -116.9879,34.5156 ], [ -116.9879,30.7489 ], [ -121.0748,30.7489 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ae4e4b07f02db68a3ce","contributors":{"authors":[{"text":"Macpherson, George S.","contributorId":75538,"corporation":false,"usgs":true,"family":"Macpherson","given":"George","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":190720,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bernstein, Janis","contributorId":71207,"corporation":false,"usgs":true,"family":"Bernstein","given":"Janis","email":"","affiliations":[],"preferred":false,"id":190719,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":5919,"text":"pp1126AJ - 1980 - Shorter contributions to stratigraphy and structural geology, 1979","interactions":[],"lastModifiedDate":"2024-11-18T19:41:27.730858","indexId":"pp1126AJ","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1980","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":331,"text":"Professional Paper","code":"PP","onlineIssn":"2330-7102","printIssn":"1044-9612","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"1126","chapter":"A-J","title":"Shorter contributions to stratigraphy and structural geology, 1979","docAbstract":"PART A: A system of anticlines lies along the trend of the sinuous course of the Colorado River for a distance of 97 km in the central Grand Canyon. Similar anticlines occur in some perennially wet side canyons. The anticlines are most abundant and well developed along northeast-trending reaches of the main canyon where it is floored by the Cambrian Muav Limestone. Dips of the folded strata are as great as 60?, and the folding locally extends more than 250 m from the river. Low-angle thrust faults in the limbs of the anticlines parallel the river and have formed in response to folding of the comparatively brittle carbonate strata. High-angle reverse kink bands, along which rocks are displaced up toward the river, also parallel the anticlines and have develop2d in response to the upward bulging of the canyon floor. \r\n\r\nThe river anticlines are an unloading phenomenon. They result from lateral squeezing toward the river of saturated shaly parts of the Muav Limestone and underlying Bright Angel Shale. The driving mechanism for the deformation is a stress gradient that results from a difference in lithostatic load between the heavily loaded rocks under the 650-m-high canyon walls and the unloaded canyon floor. Saturation appears to weaken the shaly rocks sufficiently to allow deformation to take place. River anticlines are not present in the eastern Grand Canyon, where the Cambrian rocks also occur at river level. Their absence is explained by a lack of shaly rocks that could flow when saturated. \r\n\r\nPART B: The current interest in contemporary tectonic processes in the Eastern United States is turning up abundant evidence of crustal movements in late geologic time. Topographic analysis of the highland areas from the southern Blue Ridge to the Adirondack Mountains indicates that most of the landforms owe their origin to erosion of rocks of different resistance rather than to tectonic processes. Most areas of high relief and high altitude have been formed on resistant rocks. The Cambrian and Ordovician belt, containing mostly shale and carbonate rock, on the other hand, forms an extensive lowland from Alabama to the Canadian border and girdles the Adirondack Mountains. Differences in altitude can be explained by the presence of resistant rocks outside the belt; these resistant rocks form local base levels on the streams that drain the belt. A few areas may have undergone local uplift at a higher rate than areas nearby--for example, the Piedmont region northwest of Chesapeake Bay. Most estimates of erosion rates, based on the load transported by streams and of uplift rates, based on removal during a known period of time, are of the same order of magnitude, averaging almost 4x 10^-2 millimeters per year. Rates of uplift, based on study of tilted Pleistocene beaches and repeated geodetic traverses, are at least an order of magnitude higher for comparable areas. Tectonic uplift of the highlands has been slow and involves mostly warping or tilting on a large scale. Erosion rates keep up with or exceed the rate of uplift and have been sufficient to mask evidence of faulting or other differential movements. The high rates of uplift that are inferred on tilted water planes in the glaciated regions or that are measured by differences in repeated geodetic traverses cannot have been sustained for long periods of time.\r\n\r\nPART C: The Hanson Creek Formation southwest of Eureka, Nev., in the Bellevue Peak Quadrangle is composed of three lithostratigraphic members: (1) a basal dark-gray dolomite, (2) a middle silty thin- to thick-bedded, locally nodular, dark-gray, light-yellow-mottled limestone topped by light-gray dolomite, and (3) an upper dark-gray dolomite, which is herein named the Combs Canyon Dolomite Member. Detailed geologic mapping and accompanying fossil collecting prove that the same lithostratigraphic and biostratigraphic sequence is present in the Mountain Boy Range and 11 km to the south near Wood Cone Peak. Minor differences in","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/pp1126AJ","usgsCitation":"Water Resources Division, U.S. Geological Survey, 1980, Shorter contributions to stratigraphy and structural geology, 1979: U.S. Geological Survey Professional Paper 1126, 114 p., https://doi.org/10.3133/pp1126AJ.","productDescription":"114 p.","costCenters":[],"links":[{"id":32802,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/pp/1126a-j/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":117533,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/pp/1126a-j/report-thumb.jpg"},{"id":402717,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_74379.htm","text":"The Upper Ordovician and Silurian Hanson Creek Formation of central Nevada","linkFileType":{"id":5,"text":"html"}},{"id":464253,"rank":4,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_74380.htm","text":"The Marble Hill Bed: an offshore bar-tidal channel complex in the Upper Ordovician Drakes Formation of Kentucky","linkFileType":{"id":5,"text":"html"}},{"id":464254,"rank":5,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_74381.htm","text":"Paleogene sedimentary and volcanogenic rocks from Adak Island, central Aleutian Islands, Alaska","linkFileType":{"id":5,"text":"html"}},{"id":464255,"rank":6,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_74382.htm","text":"The Livengood Dome Chert, a new Ordovician Formation in central Alaska, and its relevance to displacement on the Tintina fault","linkFileType":{"id":5,"text":"html"}},{"id":464256,"rank":7,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_74383.htm","text":"New evidence supporting Nebraskan age for origin of Ohio River in north-central Kentucky","linkFileType":{"id":5,"text":"html"}},{"id":464257,"rank":8,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_74384.htm","text":"Intertonguing between the Star Point Sandstone and the coal-bearing Blackhawk Formation requires revision of some coal-bed correlations in the southern Wasatch Plateau, Utah","linkFileType":{"id":5,"text":"html"}},{"id":464258,"rank":9,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_74385.htm","text":"Constraints on the latest movements on the Melones fault zone, Sierra Nevada foothills, California","linkFileType":{"id":5,"text":"html"}},{"id":464259,"rank":10,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_74386.htm","text":"Origin of the river anticlines, central Grand Canyon, Arizona","linkFileType":{"id":5,"text":"html"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49fae4b07f02db5f3e20","contributors":{"authors":[{"text":"Water Resources Division, U.S. Geological Survey","contributorId":128075,"corporation":true,"usgs":false,"organization":"Water Resources Division, U.S. Geological Survey","id":528707,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":5878,"text":"pp1090 - 1980 - Ordovician and Silurian Phi Kappa and Trail Creek formations, Pioneer Mountains, central Idaho: Stratigraphic and structural revisions, and new data on graptolite faunas","interactions":[],"lastModifiedDate":"2023-08-29T20:47:29.939707","indexId":"pp1090","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1980","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":331,"text":"Professional Paper","code":"PP","onlineIssn":"2330-7102","printIssn":"1044-9612","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"1090","title":"Ordovician and Silurian Phi Kappa and Trail Creek formations, Pioneer Mountains, central Idaho: Stratigraphic and structural revisions, and new data on graptolite faunas","docAbstract":"Recent geologic mapping in the northern Pioneer Mountains combined with the identification of graptolites from 116 new collections indicate that the Ordovician and Silurian Phi Kappa and Trail Creek Formations occur in a series of thrust-bounded slices within a broad zone of imbricate thrust faulting. Though confirming a deformational style first reported in a 1963 study by Michael Churkin, our data suggest that the complexity and regional extent of the thrust zone were not previously recognized. Most previously published sections of the Phi Kappa and Trail Creek Formations were measured across unrecognized thrust faults and therefore include not only structural repetitions of graptolitic Ordovician and Silurian rocks but also other tectonically juxtaposed lithostratigraphic units of diverse ages as well. Because of this discovery, the need to reconsider the stratigraphic validity of these formations and their lithology, nomenclature, structural distribution, facies relations, and graptolite faunas has arisen. \r\n\r\nThe Phi Kappa Formation in most thrust slices has internal stratigraphic continuity despite the intensity of deformation to which it was subjected. As revised herein, the Phi Kappa Formation is restricted to a structurally repeated succession of predominantly black, carbonaceous, graptolitic argillite and shale. Some limy, light-gray-weathering shale occurs in the middle part of the section, and fine-grained locally pebbly quartzite is present at the base. The basal quartzite is here named the Basin Gulch Quartzite Member of the Phi Kappa. The Phi Kappa redefined on a lithologic basis represents the span of Ordovician time from W. B. N. Berry's graptolite zones 2-4 through 15 and also includes approximately 17 m of lithologically identical shale of Early and Middle Silurian age at the top. The lower contact of the formation as revised is tectonic. The Phi Kappa is gradationally overlain by the Trail Creek Formation as restricted herein. Most of the coarser clastic rocks reported in previously measured sections of the Phi Kappa, as well as the sequence along Phi Kappa Creek from which the name originates, are excluded from the Phi Kappa as revised and are reassigned to two structural plates of Mississippian Copper Basin Formation; other strata now excluded from the formation are reassigned to the Trail Creek Formation and to an unnamed Silurian and Devonian unit. As redefined, the Phi Kappa Formation is only about 240 m thick, compared with the 3,860 m originally estimated, and it occupies only about 25 percent of the outcrop area previously mapped in 1930 by H. G. Westgate and C. P. Ross. Despite this drastic reduction in thickness and the exclusion of the rocks along Phi Kappa Creek, the name Phi Kappa is retained because of widely accepted prior usage to denote the Ordovician graptolitic shale facies of central Idaho, and because the Phi Kappa Formation as revised is present in thrust slices on Phi Kappa Mountain, at the head of Phi Kappa Creek. The lithic and faunal consistency of this unit throughout the area precludes the necessity for major facies telescoping along individual faults within the outcrop belt. However, tens of kilometers of tectonic shortening seems required to juxtapose the imbricated Phi Kappa shale facies with the Middle Ordovician part of the carbonate and quartzite shale sequence of east central Idaho. The shelf rocks are exposed in the Wildhorse structural window of the northeastern Pioneer Mountains, and attain a thickness of at least 1,500 m throughout the region north and east of the Pioneer Mountains. The Phi Kappa is in direct thrust contact on intensely deformed medium- to high-grade metamorphic equivalents of the same shelf sequence in the Pioneer window at the south end of the Phi Kappa-Trail Creek outcrop belt. Along East Pass, Big Lake, and Pine Creeks, north of the Pioneer Mountains, some rocks previously mapped as Ramshorn Slate are lithologically and faunally equivalent to the P","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/pp1090","usgsCitation":"Dover, J.H., Berry, W.B., and Ross, R.J., 1980, Ordovician and Silurian Phi Kappa and Trail Creek formations, Pioneer Mountains, central Idaho: Stratigraphic and structural revisions, and new data on graptolite faunas: U.S. Geological Survey Professional Paper 1090, Report: vi, 54 p.; 1 Plate: 29.00 x 39.00 inches, https://doi.org/10.3133/pp1090.","productDescription":"Report: vi, 54 p.; 1 Plate: 29.00 x 39.00 inches","costCenters":[],"links":[{"id":104549,"rank":4,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_4718.htm","linkFileType":{"id":5,"text":"html"},"description":"4718"},{"id":32698,"rank":3,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/pp/1090/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":32699,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/pp/1090/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":121437,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/pp/1090/report-thumb.jpg"}],"country":"United States","state":"Idaho","otherGeospatial":"Pioneer Mountains","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -114.3333,\n 43.9297\n ],\n [\n -114.3333,\n 43.7728\n ],\n [\n -114.1667,\n 43.7728\n ],\n [\n -114.1667,\n 43.9297\n ],\n [\n -114.3333,\n 43.9297\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a60e4b07f02db635245","contributors":{"authors":[{"text":"Dover, James H.","contributorId":43382,"corporation":false,"usgs":true,"family":"Dover","given":"James","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":151728,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Berry, William B. N.","contributorId":76372,"corporation":false,"usgs":true,"family":"Berry","given":"William","email":"","middleInitial":"B. N.","affiliations":[],"preferred":false,"id":151729,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Ross, Reuben James Jr.","contributorId":36911,"corporation":false,"usgs":true,"family":"Ross","given":"Reuben","suffix":"Jr.","email":"","middleInitial":"James","affiliations":[],"preferred":false,"id":151727,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":10037,"text":"ofr801285 - 1980 - Ground-water appraisal of sand plains in Benton, Sherburne, Stearns, and Wright counties, central Minnesota","interactions":[],"lastModifiedDate":"2018-03-12T13:15:03","indexId":"ofr801285","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1980","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"80-1285","title":"Ground-water appraisal of sand plains in Benton, Sherburne, Stearns, and Wright counties, central Minnesota","docAbstract":"Surficial-sand aquifers in 960 square miles of central Minnesota have been studied to determine the occurrence, availability, and suitability of the surficial aquifer as a source of water. The aquifer is being increasingly developed for irrigation.
\nDuring the drought of 1976, nearly 24,000 acre-feet of ground water was withdrawn for irrigation, more than double that of the previous year. The number of irrigation pumping centers more than doubled from 1975 to 1977. Nearly all water is pumped from drift aquifers, except in the eastern parts of Sherburne and Wright Counties, where Paleozoic sandstone beds are a reliable source.
\nPhysical and hydrologic properties of the surficial aquifer were determined by test augering, pumping tests, and laboratory sieve analyses. The aquifer is predominantly medium to coarse sand with lesser amounts of gravel in much of the study area. The Sauk River valley in Stearns County is nearly 50 percent poorly sorted gravel of irregular thickness. Saturated thickness of sand in the Maine Prairie area locally exceeds 100 feet, and transmissivity exceeds 40,000 feet squared per day. Similar deposits in Sherburne County exceed 80 feet in thickness, transmissivity exceeds 30,000 feet squared per day, and wells theoretically could yield 2,000 to 3,000 gallons per minute. Theoretical well yields of less than 100 gallons per minute can be expected where saturated thickness is less than 20 feet and transmissivity is less than 5,000 feet squared per day. Pumping tests indicate horizontal to vertical ratios of hydraulic conductivity ranging from 2-27:1.
\nAverage annual precipitation is 27 inches, about 8 of which is recharge to the surficial aquifer. Regional ground-water movement is toward the Mississippi River, which transects the area. Tributary streams and lakes act as controls for local flow systems. At extreme low flow in August 1976, mainstem gains in streamflow in the Elk, St. Francis, Sauk, and Mississippi Rivers averaged 0.4, 0.4, 0.2, and 2.5 cubic feet per second per river mile, respectively.
\nGround water is of the calcium bicarbonate type and is suitable for most uses. Relatively high nitrate and chloride concentrations occur in a heavily irrigated area in Sherburne County.
\nSurficial aquifers in Sherburne County and the Maine Prairie area of Stearns County were simulated by two-dimensional digital ground-water-flow models. Calibration was achieved by matching calculated water-table heads and streamflow gains with observed field values. Aquifer responses to pumping stresses under present and hypothetically expanded development were determined for average and below average recharge conditions.
\nIrrigation withdrawals for 1977 totaling 15.6 cubic feet per second from 96 pumping centers were included in the Sherburne steady-state model. Increasing withdrawals to 52.2 cubic feet per second from 153 pumping centers would lower regional water levels as much as 8 feet within a few years at normal recharge rates.
\nIrrigation withdrawals in 1977, totaling 2.0 cubic feet per second from 19 pumping centers, were included in the Maine Prairie steady-state model. Increasing withdrawals to 10.8 cubic feet per second from 42 pumping centers would lower regional water levels as much as 18 feet at normal recharge rates.
\nBoth modeled areas will support additional withdrawals, but caution must be exercised because lowering ground-water levels will also lower lake levels and reduce streamflow. In some areas, aquifer dewatering will reduce individual well yields.
","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"St. Paul, MN","doi":"10.3133/ofr801285","collaboration":"Prepared in cooperation with Minnesota Department of Natural Resources, Central Minnesota Regional Development Commission, Benton Sherburne, Stearns, and Wright County Boards","usgsCitation":"Lindholm, G.F., 1980, Ground-water appraisal of sand plains in Benton, Sherburne, Stearns, and Wright counties, central Minnesota: U.S. Geological Survey Open-File Report 80-1285, Document: viii, 103 p.; 4 Plates: 42.96 x 32.35 inches or smaller, https://doi.org/10.3133/ofr801285.","productDescription":"Document: viii, 103 p.; 4 Plates: 42.96 x 32.35 inches or smaller","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":392,"text":"Minnesota Water Science Center","active":true,"usgs":true}],"links":[{"id":37882,"rank":401,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1980/1285/plate-2.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":144852,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1980/1285/report-thumb.jpg"},{"id":37883,"rank":402,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1980/1285/plate-3.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":37884,"rank":403,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1980/1285/plate-4.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":37885,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1980/1285/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":37881,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1980/1285/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"Minnesota","county":"Benton County, Sherburne County, Stearns County, Wright County","geographicExtents":"{\"type\":\"FeatureCollection\",\"features\":[{\"type\":\"Feature\",\"geometry\":{\"type\":\"Polygon\",\"coordinates\":[[[-93.7641,45.8202],[-93.7598,45.5604],[-93.5106,45.5598],[-93.5093,45.4163],[-93.5138,45.2454],[-93.5158,45.2458],[-93.5197,45.2417],[-93.5242,45.2385],[-93.5332,45.2317],[-93.5371,45.2294],[-93.5462,45.2289],[-93.554,45.2298],[-93.5617,45.2289],[-93.5676,45.2225],[-93.5734,45.2202],[-93.5792,45.2189],[-93.5857,45.2189],[-93.5967,45.2134],[-93.6031,45.2111],[-93.6096,45.2111],[-93.6167,45.2115],[-93.6258,45.2092],[-93.6297,45.2074],[-93.6329,45.2056],[-93.6361,45.206],[-93.6387,45.2074],[-93.6471,45.2079],[-93.6562,45.201],[-93.6555,45.1969],[-93.6549,45.1905],[-93.6516,45.1841],[-93.6503,45.169],[-93.6529,45.1631],[-93.6554,45.1599],[-93.6574,45.1585],[-93.6716,45.1562],[-93.6793,45.1525],[-93.6852,45.1489],[-93.6929,45.1434],[-93.7019,45.1374],[-93.7155,45.1269],[-93.72,45.1205],[-93.7225,45.11],[-93.7257,45.1022],[-93.7322,45.0963],[-93.7341,45.0922],[-93.7399,45.0894],[-93.7534,45.0853],[-93.7631,45.0839],[-93.7663,45.077],[-93.7702,45.0734],[-93.7692,44.9789],[-94.0117,44.9796],[-94.2548,44.9812],[-94.2544,45.2268],[-94.2602,45.2268],[-94.2614,45.2784],[-94.2615,45.2844],[-94.382,45.2836],[-94.3819,45.327],[-94.7612,45.3272],[-94.7635,45.414],[-95.1322,45.4128],[-95.1319,45.5856],[-95.1384,45.5864],[-95.1388,45.7602],[-95.1398,45.7744],[-94.6438,45.7758],[-94.2782,45.777],[-94.2802,45.778],[-94.2841,45.7793],[-94.2894,45.7806],[-94.2972,45.7829],[-94.3018,45.7838],[-94.3051,45.7865],[-94.3077,45.7888],[-94.3091,45.792],[-94.3105,45.7965],[-94.3118,45.7983],[-94.3144,45.7992],[-94.3183,45.7997],[-94.3235,45.7992],[-94.3262,45.8001],[-94.3295,45.8014],[-94.3328,45.8042],[-94.338,45.8078],[-94.3426,45.811],[-94.3466,45.8141],[-94.3499,45.8173],[-94.3513,45.8228],[-94.0515,45.8262],[-93.9254,45.8216],[-93.7641,45.8202]]]},\"properties\":{\"name\":\"Benton\",\"state\":\"MN\"}}]}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ab0e4b07f02db66d3ed","contributors":{"authors":[{"text":"Lindholm, Gerald F.","contributorId":18374,"corporation":false,"usgs":true,"family":"Lindholm","given":"Gerald","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":160713,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":24341,"text":"ofr80935 - 1980 - High-resolution seismic-reflection profiles collected by the R/V Columbus Iselin, cruise CI 7807-1, in the Baltimore Canyon outer continental shelf area, offshore New Jersey","interactions":[],"lastModifiedDate":"2018-06-19T08:24:20","indexId":"ofr80935","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1980","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"80-935","title":"High-resolution seismic-reflection profiles collected by the R/V Columbus Iselin, cruise CI 7807-1, in the Baltimore Canyon outer continental shelf area, offshore New Jersey","docAbstract":"High-resolution seismic-reflection profiles were collected by the U.S. Geological Survey (USGS) aboard R/V COLUMBUS ISELIN, cruise 7807-1, from 18 August to 4 September 1978 over the Continental Slope of the Eastern United States between Wilmington and Hudson Canyons. These data were acquired as part of a study to determine potential geologic hazards to petroleum development of the Baltimore Canyon trough area. On this cruise, the Continental Slope between Lindenkohl and Carteret Canyons was surveyed along lines spaced one-half nautical mile apart to study the size and distribution of mass-wasting features as a guide to assess the importance of mass wasting processes on the Continental Slope. The seismic-reflection profiles were placed to complement other data gathered previously by the USGS.
Track-line distances totaled 2,050 km of 40-in3 air-gun (with wave shaper) profiles, 2,100 km of 800-J sparker data, and 2,100 km of 3 .5-kHz data. The air-gun and sparker profiles are of high quality, but the 3.5-kHz system did not function well and achieved no subbottom penetration. The side-scan sonar system was operated along the uppermost Continental Slope to investigate its potential for use in this environment. Data were acquired over 22 km of ship's track.
Navigation was by Loran-C (5-minute fix interval).
The original records can be examined at the U.S. Geological Survey offices in Woods Hole, Massachusetts 02543. Microfilm copies of the data are available for purchase from the National Geophysical and Solar-Terrestrial Data Center (NGSDC), Boulder, Colorado 80303.
","language":"ENGLISH","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr80935","issn":"0094-9140","usgsCitation":"Robb, J.M., 1980, High-resolution seismic-reflection profiles collected by the R/V Columbus Iselin, cruise CI 7807-1, in the Baltimore Canyon outer continental shelf area, offshore New Jersey: U.S. Geological Survey Open-File Report 80-935, 3 p. :map ;28 cm., https://doi.org/10.3133/ofr80935.","productDescription":"3 p. :map ;28 cm.","costCenters":[],"links":[{"id":157345,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr80935.PNG"},{"id":259879,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1980/0935/ofr1980935.pdf","text":"Report","size":"2.05 MB","linkFileType":{"id":1,"text":"pdf"},"description":"OFR 1980-935"}],"contact":"Coastal and Marine Geology Program
U.S. Geological Survey
384 Woods Hole Road
Woods Hole, MA 02543
High-resolution seismic-reflection profiles were collected by the U.S. Geological Survey (USGS) aboard R/V JAMES M. GILLIS (cruise GS 7903-4) from 27 June to 11 July 1979 over the Continental Slope of the Eastern United States between Lindenkohl and Hudson Canyons. These data were acquired as part of a study to determine potential geologic hazards to petroleum development of the Baltimore Canyon trough area. On this cruise, the Continental Slope between Carteret and South Toms Canyons was surveyed along lines spaced one-half nautical mile apart to study the size and distribution of mass-wasting features as a guide to assess the importance of mass-wasting processes on the Continental Slope. The seimsic-reflection profiles were placed to complement other data gathered previously by the USGS and to continue a survey grid begun in 1978 aboard the R/V COLUMBUS !SELIN, cruise CI 7807-1.
Track-line distances totaled 1,555 km of 40-in3 air-gun (with wave shaper) profiles, 1, 750 km of 800-J sparker data, and 1,780 km of 3 .5-kHz data. All data are of high quality. A side-scan sonar system was operated briefly along the uppermost Continental Slope to acquire data over 70 km of ship's track. In addition, experimental profiling data were collected from a hydrophone towed at depth over the midslope on the end of the side-scan cable; the surface-towed sparker was used as a sound source. High-resolution profiles were collected by this method over 105 km of track.
Navigation was by Loran-C (5-minute fix interval) and satellite.
The original data may be inspected at the offices of the U.S. Geological Survey in Woods Hole, Massachusetts 02543. Microfilm copies of the data from this cruise are available for purchase from the National Geophysical and Solar-Terrestrial Data Center (NGSDC), Boulder, Colorado 80303.
","language":"ENGLISH","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr80934","issn":"0094-9140","usgsCitation":"Robb, J.M., 1980, High-resolution seismic-reflection profiles collected by the R/V James M. Gilliss, cruise GS 7903-4, in the Baltimore Canyon outer continental shelf area, offshore New Jersey: U.S. Geological Survey Open-File Report 80-934, 3 p. :map ;28 cm., https://doi.org/10.3133/ofr80934.","productDescription":"3 p. :map ;28 cm.","costCenters":[],"links":[{"id":259880,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1980/0934/ofr1980934.pdf","text":"Report","size":"67 KB","linkFileType":{"id":1,"text":"pdf"},"description":"OFR 1980-934"},{"id":157437,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr80934.PNG"}],"contact":"Coastal and Marine Geology Program
U.S. Geological Survey
384 Woods Hole Road
Woods Hole, MA 02543
Aeromagnetic, aeroradioactivity, and gravity surveys of Fairfax County, Virginia, are interpreted with the aid of existing geologic data and local geophysical measurements. Highly magnetic metasedimentary rocks of the Peters Creek Schist and Sykesville Formation produce most of the magnetic anomalies of Fairfax County. In contrast, the granitoid rocks of the Occoquan pluton are relatively non-magnetic and are characterized by broad magnetic and gravity lows. Linear magnetic highs without corresponding gravity anomalies, plus samples from a test well, indicate that Peters Creek Schist underlies the east side of the Triassic-Jurassic Culpeper basin. The continuation of the Piney Branch mafic-ultramafic complex beneath the basin is indicated by a gravity high. Basement lithology beneath the Coastal Plain sediments is interpreted by the following anomaly combinations: Sykesville Formation - magnetic high with no gravity expression; Chopawamsic Formation -magnetic and corresponding gravity high; Occoquan granitoid rocks -magnetic and corresponding gravity low.
Analysis of a detailed gravity profile across a diabase body near Herndon indicates that the intrusive is a sill which is partly discordant with the sedimentary rocks of the Culpeper basin. The limbs of the horseshoe-shaped exposure dip gently toward the center; the west limb, 500 m thick, dips 15° east and the east limb, 250 m thick, dips west 3° or less. A second gravity profile across a similar diabase body near Centreville suggests that part of its western limb consists of a narrow dike-like body projecting upwards from a 200 m-thick buried sill. Both of these bodies apparently have a spoon-shaped structure with a discordant northern edge which was probably controlled by faulting. Similarities between these intrusives apply also to the small Boyds diabase in Maryland. The three diabase bodies are aligned, have similar magnetic expressions, and abut the edge of the Culpeper basin, suggesting that they were intruded under similar structural settings at about the same time. The northward decrease in size of these intrusives may be a consequence of the inward-dipping shape and a greater degree of uplift and deeper erosion to the north. By this reasoning, the Boyds body represents only the basal remnant of a largely eroded structure with the Centreville body preserving more of the original form.
A ground magnetometer survey and an aeroradioactivity survey indicate the presence of additional zones in the thermal metamorphic aureole in the sedimentary rocks around the large diabase bodies. A 150-300-m-wide inner magnetite-rich zone above and below the Herndon sill is inferred from anomalies on a detailed ground magnetic profile. Aeroradioactivity data show a rim of high values outside the geologically mapped aureole of both the Herndon and Centreville bodies. This suggests a subtle outer zone slightly enriched in thermally expelled radio-elements.
Deep resistivity soundings in the Culpeper basin indicate that the sedimentary rocks may reach a thickness of about 3600 feet (1100 m) at the western edge of the county.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr801165","usgsCitation":"Daniels, D.L., 1980, Geophysical-geological analysis of Fairfax County, Virginia: U.S. Geological Survey Open-File Report 80-1165, 64 p., https://doi.org/10.3133/ofr801165.","productDescription":"64 p.","costCenters":[],"links":[{"id":426980,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1980/1165/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":141983,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1980/1165/report-thumb.jpg"}],"country":"United States","state":"Virginia","county":"Fairfax 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David L. 0000-0003-0599-8036 dave@usgs.gov","orcid":"https://orcid.org/0000-0003-0599-8036","contributorId":1792,"corporation":false,"usgs":true,"family":"Daniels","given":"David","email":"dave@usgs.gov","middleInitial":"L.","affiliations":[{"id":243,"text":"Eastern Geology and Paleoclimate Science Center","active":true,"usgs":true}],"preferred":true,"id":157830,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":22452,"text":"ofr80203 - 1980 - Quality of water and time of travel in Hobolochitto Creek, Pearl River County, Mississippi","interactions":[],"lastModifiedDate":"2022-05-11T19:27:29.664371","indexId":"ofr80203","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1980","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"80-203","title":"Quality of water and time of travel in Hobolochitto Creek, Pearl River County, Mississippi","docAbstract":"In Mississippi, an intensive study of Hobolochitto Creek, including the lower parts of East and West Hobolochitto Creeks, was conducted on September 12-14, 1978. The quality-of-water data were collected during a period of generally low streamflow and seasonally high air temperatures. These data show that the quality of water in Hobolochitto Creek was generally good. The dissolved-solids concentrations were less than 50 milligrams per liter, and the concentrations of nitrogen and phosphorus species were low. The 5-day biochemical oxygen demand generally was minimal, and dissolved-oxygen concentrations were at levels that could support aquatic life. Several water samples contained high fecal bacteria densities and there was evidence of the presence of wastes of human origin, particularly at the downstream sites on Hobolochitto Creek. It was determined from a time-of-travel study that the rate of solute travel is very slow at low streamflow. A peak dye concentration traveled through a 3.7-mile reach of Hobolochitto Creek in 23.5 hours.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr80203","collaboration":"Prepared in cooperation with the Mississippi Department of Natural Resources, Bureau of Pollution Control","usgsCitation":"Bednar, G.A., 1980, Quality of water and time of travel in Hobolochitto Creek, Pearl River County, Mississippi: U.S. Geological Survey Open-File Report 80-203, iv, 36 p., https://doi.org/10.3133/ofr80203.","productDescription":"iv, 36 p.","costCenters":[],"links":[{"id":400542,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1980/0203/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":155067,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1980/0203/report-thumb.jpg"}],"country":"United States","state":"Mississippi","county":"Pearl River County","otherGeospatial":"Hobolochitto Creek","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -89.82147216796875,\n 30.510216587229984\n ],\n [\n -89.44244384765625,\n 30.510216587229984\n ],\n [\n -89.44244384765625,\n 30.89279747750818\n ],\n [\n -89.82147216796875,\n 30.89279747750818\n ],\n [\n -89.82147216796875,\n 30.510216587229984\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a8be4b07f02db651763","contributors":{"authors":[{"text":"Bednar, Gene A.","contributorId":81881,"corporation":false,"usgs":true,"family":"Bednar","given":"Gene","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":188282,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":12281,"text":"ofr80888 - 1980 - Sedimentology and stratigraphy of the Kanayut Conglomerate and associated units, central and eastern Brooks Range, Alaska– Report of 1978 field season","interactions":[],"lastModifiedDate":"2021-12-09T21:23:24.656484","indexId":"ofr80888","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1980","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"80-888","title":"Sedimentology and stratigraphy of the Kanayut Conglomerate and associated units, central and eastern Brooks Range, Alaska– Report of 1978 field season","docAbstract":"No abstract available.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr80888","usgsCitation":"Nilsen, T.H., Moore, T., Dutro, J., Brosge, W., and Orchard, D.M., 1980, Sedimentology and stratigraphy of the Kanayut Conglomerate and associated units, central and eastern Brooks Range, Alaska– Report of 1978 field season: U.S. Geological Survey Open-File Report 80-888, 80 p., https://doi.org/10.3133/ofr80888.","productDescription":"80 p.","costCenters":[],"links":[{"id":392698,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_75310.htm"},{"id":40496,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1980/0888/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":143784,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1980/0888/report-thumb.jpg"}],"country":"United States","state":"Alaska","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -159,\n 68\n ],\n [\n -141,\n 68\n ],\n [\n -141,\n 69\n ],\n [\n -159,\n 69\n ],\n [\n -159,\n 68\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a0ae4b07f02db5fbb84","contributors":{"authors":[{"text":"Nilsen, Tor Helge","contributorId":89864,"corporation":false,"usgs":true,"family":"Nilsen","given":"Tor","email":"","middleInitial":"Helge","affiliations":[],"preferred":false,"id":165766,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Moore, Thomas E. 0000-0002-0878-0457","orcid":"https://orcid.org/0000-0002-0878-0457","contributorId":85592,"corporation":false,"usgs":true,"family":"Moore","given":"Thomas E.","affiliations":[],"preferred":false,"id":165765,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Dutro, J.T. Jr.","contributorId":8432,"corporation":false,"usgs":true,"family":"Dutro","given":"J.T.","suffix":"Jr.","email":"","affiliations":[],"preferred":false,"id":165762,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Brosge, W. P.","contributorId":58248,"corporation":false,"usgs":true,"family":"Brosge","given":"W. P.","affiliations":[],"preferred":false,"id":165764,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Orchard, D. M.","contributorId":37331,"corporation":false,"usgs":true,"family":"Orchard","given":"D.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":165763,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":11221,"text":"ofr81231 - 1980 - Bulletin of the Seismological Laboratory for the period from 1 January 1975 to 31 December 1979","interactions":[],"lastModifiedDate":"2022-05-09T18:34:26.373567","indexId":"ofr81231","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1980","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"81-231","title":"Bulletin of the Seismological Laboratory for the period from 1 January 1975 to 31 December 1979","docAbstract":"This issue of the Bulletin of the Seismological Laboratory summarizes the determination of epicenters for earthquakes located in the western Great Basin, Nevada and eastern California, for the period 1975-1979. The Laboratory attempts to identify and locate all earthquakes with ML greater than about 2.5 in this region. Quality of locations is best for events located in areas with dense seismic coverage; events well outside the network (aftershocks of NTS explosions, etc.) may be mislocated by several tens of kilometers.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr81231","usgsCitation":"Smith, G., and Ryall, F., 1980, Bulletin of the Seismological Laboratory for the period from 1 January 1975 to 31 December 1979: U.S. Geological Survey Open-File Report 81-231, 84 p., https://doi.org/10.3133/ofr81231.","productDescription":"84 p.","costCenters":[],"links":[{"id":400342,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1981/0231/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":144550,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1981/0231/report-thumb.jpg"}],"country":"United States","state":"California, Nevada","otherGeospatial":"western Great Basin","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -120.80566406250001,\n 38.09998264736481\n ],\n [\n -117.7734375,\n 38.09998264736481\n ],\n [\n -117.7734375,\n 41.77131167976407\n ],\n [\n -120.80566406250001,\n 41.77131167976407\n ],\n [\n -120.80566406250001,\n 38.09998264736481\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ae0e4b07f02db6882ff","contributors":{"authors":[{"text":"Smith, G.M.","contributorId":83538,"corporation":false,"usgs":true,"family":"Smith","given":"G.M.","email":"","affiliations":[],"preferred":false,"id":162759,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ryall, F.D.","contributorId":43360,"corporation":false,"usgs":true,"family":"Ryall","given":"F.D.","email":"","affiliations":[],"preferred":false,"id":162758,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":12324,"text":"ofr80558 - 1980 - Summary of hydrologic testing in Tertiary limestone aquifer, Tenneco offshore exploratory well-Atlantic OCS, lease block 427 (Jacksonville NH-17-5)","interactions":[{"subject":{"id":12324,"text":"ofr80558 - 1980 - Summary of hydrologic testing in Tertiary limestone aquifer, Tenneco offshore exploratory well-Atlantic OCS, lease block 427 (Jacksonville NH-17-5)","indexId":"ofr80558","publicationYear":"1980","noYear":false,"title":"Summary of hydrologic testing in Tertiary limestone aquifer, Tenneco offshore exploratory well-Atlantic OCS, lease block 427 (Jacksonville NH-17-5)"},"predicate":"SUPERSEDED_BY","object":{"id":250,"text":"wsp2180 - 1982 - Summary of hydrologic testing in Tertiary limestone aquifer, Tenneco offshore exploratory well--Atlantic OCS, lease-block 427 (Jacksonville NH 17-5)","indexId":"wsp2180","publicationYear":"1982","noYear":false,"title":"Summary of hydrologic testing in Tertiary limestone aquifer, Tenneco offshore exploratory well--Atlantic OCS, lease-block 427 (Jacksonville NH 17-5)"},"id":1}],"supersededBy":{"id":250,"text":"wsp2180 - 1982 - Summary of hydrologic testing in Tertiary limestone aquifer, Tenneco offshore exploratory well--Atlantic OCS, lease-block 427 (Jacksonville NH 17-5)","indexId":"wsp2180","publicationYear":"1982","noYear":false,"title":"Summary of hydrologic testing in Tertiary limestone aquifer, Tenneco offshore exploratory well--Atlantic OCS, lease-block 427 (Jacksonville NH 17-5)"},"lastModifiedDate":"2022-08-01T21:42:32.708675","indexId":"ofr80558","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1980","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"80-558","title":"Summary of hydrologic testing in Tertiary limestone aquifer, Tenneco offshore exploratory well-Atlantic OCS, lease block 427 (Jacksonville NH-17-5)","docAbstract":"A summary of hydrologic testing in an offshore oil-test well drilled for Tenneco, Inc. 55 miles east of Fernandina Beach, Florida, is presented. The interval tested (1,050 to 1,070 feet below sea level) is in a calcarenite that is equivalent to the Ocala Limestone (late Eocene) of onshore Florida and South Georgia. At this site the Ocala forms the highly productive Tertiary limestone aquifer system of the southeastern United States. Pressure-head measurements indicate an equivalent freshwater head of 24 to 29 feet above sea level. These pressure-head measurements and an earlier one made in the nearby JOIDES J-1 hole are the only hydraulic head determinations to date in the offshore extensions of any of the aquifers underlying the Atlantic coastal plain.
A drill-stem test recovered water samples containing about 7,000 milligrams per liter chloride. However, seawater used in the drilling process apparently contaminated the samples and the formation water is considered slightly fresher.
The head and salinity data from the Tenneco well suggest that the sampled interval lies in the transition zone between fresh and seawater in the limestone aquifer. These data, when viewed with similar data from JOIDES J-1, show the transition zone to slope very slightly landward. Heads at both wells are compatible with the onshore flow system as it existed prior to development.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr80558","usgsCitation":"Johnston, R.H., Bush, P.W., Krause, R.E., Miller, J.A., and Sprinkle, C.L., 1980, Summary of hydrologic testing in Tertiary limestone aquifer, Tenneco offshore exploratory well-Atlantic OCS, lease block 427 (Jacksonville NH-17-5): U.S. Geological Survey Open-File Report 80-558, Report: v, 22 p.; 1 Plate: 54.84 x 8.07 inches, https://doi.org/10.3133/ofr80558.","productDescription":"Report: v, 22 p.; 1 Plate: 54.84 x 8.07 inches","costCenters":[],"links":[{"id":404614,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1980/0558/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":144719,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1980/0558/report-thumb.jpg"},{"id":404615,"rank":3,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1980/0558/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"Florida","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -81.52130126953125,\n 30.596547664210643\n ],\n [\n -81.34414672851562,\n 30.596547664210643\n ],\n [\n -81.34414672851562,\n 30.717045911671004\n ],\n [\n -81.52130126953125,\n 30.717045911671004\n ],\n [\n -81.52130126953125,\n 30.596547664210643\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b04e4b07f02db69912e","contributors":{"authors":[{"text":"Johnston, Richard H.","contributorId":95860,"corporation":false,"usgs":true,"family":"Johnston","given":"Richard","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":165902,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bush, Peter W.","contributorId":57820,"corporation":false,"usgs":true,"family":"Bush","given":"Peter","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":165899,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Krause, Richard E.","contributorId":40185,"corporation":false,"usgs":true,"family":"Krause","given":"Richard","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":165900,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Miller, James A.","contributorId":49772,"corporation":false,"usgs":true,"family":"Miller","given":"James","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":165901,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Sprinkle, Craig L.","contributorId":41802,"corporation":false,"usgs":true,"family":"Sprinkle","given":"Craig","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":165898,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":30557,"text":"wri8099 - 1980 - Hydrologic setting of wetlands in the Cottonwood Lake area, Stutsman County, North Dakota","interactions":[],"lastModifiedDate":"2018-03-13T11:20:09","indexId":"wri8099","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1980","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":342,"text":"Water-Resources Investigations Report","code":"WRI","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"80-99","title":"Hydrologic setting of wetlands in the Cottonwood Lake area, Stutsman County, North Dakota","docAbstract":"Because of growing interest in the role of lakes and wetlands in the hydrology of the prairie environment, a group of wetlands in the Cottonwood Lake area, Stutsman County, are being instrumented for long-term hydrologic studies. The study site is on a regional topographic high near the eastern edge of the Missouri Coteau and is underlain by more than 400 feet of glacial drift, largely clayey, silty till. Long-term climatic data indicate the study area is in a water deficient area mean annual evaporation exceeds mean annual precipitation by about 18 inches.
Different methods are being used for comparison of measurements and estimates of each hydrologic component interacting with the lakes and wetlands. For example, for 3 months during 1979, estimates of precipitation for the study site using data collected at National Weather Service stations differed from that measured by a recording gage at the study site by several tenths of an inch for 14-day totals and differed by more than 0.5 inch for individual storms.
Numerical-simulation analysis of regional ground-water flow systems show the study site is situated in a regional recharge area, but local groundwater flow systems can discharge to lakes and wetlands within the recharge area. Instrumentation at the study site shows a complex interrelationship of wetlands and ground water. Based on data for 1979 only, some wetlands appear to recharge ground water, some wetlands are flow-through types where ground water enters one side and surface water seeps into the ground on the other side, and some wetlands are discharge points for ground water. Further, these interrelationships vary throughout the year.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/wri8099","usgsCitation":"Winter, T.C., and Carr, M.R., 1980, Hydrologic setting of wetlands in the Cottonwood Lake area, Stutsman County, North Dakota: U.S. Geological Survey Water-Resources Investigations Report 80-99, vi, 42 p., https://doi.org/10.3133/wri8099.","productDescription":"vi, 42 p.","costCenters":[{"id":478,"text":"North Dakota Water Science Center","active":true,"usgs":true},{"id":34685,"text":"Dakota Water Science Center","active":true,"usgs":true}],"links":[{"id":125109,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wri/1980/0099/report-thumb.jpg"},{"id":59323,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wri/1980/0099/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"North Dakota","county":"Stutsman County","otherGeospatial":"Cottonwood Lake","geographicExtents":"{\"type\":\"FeatureCollection\",\"features\":[{\"type\":\"Feature\",\"geometry\":{\"type\":\"Polygon\",\"coordinates\":[[[-99.2669,47.3268],[-98.8466,47.327],[-98.8392,47.327],[-98.8232,47.3272],[-98.8152,47.3271],[-98.4991,47.327],[-98.467,47.3266],[-98.4677,47.2402],[-98.4685,46.9788],[-98.4412,46.9789],[-98.4396,46.6296],[-98.7894,46.6294],[-99.0379,46.6309],[-99.1616,46.6317],[-99.4122,46.6316],[-99.4498,46.6319],[-99.4477,46.8044],[-99.4476,46.9788],[-99.4821,46.9795],[-99.4824,47.0089],[-99.4822,47.0162],[-99.4821,47.0249],[-99.4826,47.0396],[-99.4827,47.1558],[-99.4801,47.3267],[-99.2669,47.3268]]]},\"properties\":{\"name\":\"Stutsman\",\"state\":\"ND\"}}]}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4acce4b07f02db67e9ce","contributors":{"authors":[{"text":"Winter, Thomas C.","contributorId":84736,"corporation":false,"usgs":true,"family":"Winter","given":"Thomas","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":203451,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Carr, Mark R.","contributorId":70786,"corporation":false,"usgs":true,"family":"Carr","given":"Mark","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":203450,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":21654,"text":"ofr80231 - 1980 - Chemical analyses, correlations, and ages of late Cenozoic tephra units of east-central and Southern California","interactions":[{"subject":{"id":21654,"text":"ofr80231 - 1980 - Chemical analyses, correlations, and ages of late Cenozoic tephra units of east-central and Southern California","indexId":"ofr80231","publicationYear":"1980","noYear":false,"title":"Chemical analyses, correlations, and ages of late Cenozoic tephra units of east-central and Southern California"},"predicate":"SUPERSEDED_BY","object":{"id":45716,"text":"pp1293 - 1984 - Chemical analyses, correlations, and ages of upper Pliocene and Pleistocene ash layers of east-central and Southern California","indexId":"pp1293","publicationYear":"1984","noYear":false,"title":"Chemical analyses, correlations, and ages of upper Pliocene and Pleistocene ash layers of east-central and Southern California"},"id":1}],"supersededBy":{"id":45716,"text":"pp1293 - 1984 - Chemical analyses, correlations, and ages of upper Pliocene and Pleistocene ash layers of east-central and Southern California","indexId":"pp1293","publicationYear":"1984","noYear":false,"title":"Chemical analyses, correlations, and ages of upper Pliocene and Pleistocene ash layers of east-central and Southern California"},"lastModifiedDate":"2025-04-15T16:38:56.520596","indexId":"ofr80231","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1980","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"80-231","title":"Chemical analyses, correlations, and ages of late Cenozoic tephra units of east-central and Southern California","docAbstract":"No abstract available.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr80231","issn":"0566-8174","usgsCitation":"Sarna-Wojcicki, A.M., Bowman, H., Meyer, C., Russell, P., Asaro, F., Michael, H., Rowe, J., Baedecker, P.A., and McCoy, G., 1980, Chemical analyses, correlations, and ages of late Cenozoic tephra units of east-central and Southern California: U.S. Geological Survey Open-File Report 80-231, Report: iii, 57 p.; 1 Plate: 37.84 x 30.07 inches, https://doi.org/10.3133/ofr80231.","productDescription":"Report: iii, 57 p.; 1 Plate: 37.84 x 30.07 inches","costCenters":[],"links":[{"id":482567,"rank":3,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1980/0231/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":155182,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1980/0231/report-thumb.jpg"},{"id":375165,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1980/0231/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"California","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -122.67333984374999,\n 37.94419750075404\n ],\n [\n -122.32177734375,\n 36.98500309285596\n ],\n [\n -122.14599609375001,\n 36.10237644873644\n ],\n [\n -120.91552734375,\n 35.24561909420681\n ],\n [\n -120.58593749999999,\n 34.488447837809304\n ],\n [\n -120.30029296875,\n 34.30714385628804\n ],\n [\n -119.20166015625,\n 33.96158628979907\n ],\n [\n -118.10302734374999,\n 33.54139466898275\n ],\n [\n -117.53173828125,\n 33.211116472416855\n ],\n [\n -117.04833984375001,\n 32.52828936482526\n ],\n [\n -114.67529296874999,\n 32.731840896865684\n ],\n [\n -114.19189453125,\n 34.288991865037524\n ],\n [\n -114.58740234375,\n 34.994003757575776\n ],\n [\n -118.71826171875,\n 38.06539235133249\n ],\n [\n -122.67333984374999,\n 37.94419750075404\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49e1e4b07f02db5e498e","contributors":{"authors":[{"text":"Sarna-Wojcicki, Andrei M. 0000-0002-0244-9149 asarna@usgs.gov","orcid":"https://orcid.org/0000-0002-0244-9149","contributorId":1046,"corporation":false,"usgs":true,"family":"Sarna-Wojcicki","given":"Andrei","email":"asarna@usgs.gov","middleInitial":"M.","affiliations":[],"preferred":true,"id":185081,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bowman, H.W.","contributorId":88770,"corporation":false,"usgs":true,"family":"Bowman","given":"H.W.","email":"","affiliations":[],"preferred":false,"id":185085,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Meyer, C.E.","contributorId":104023,"corporation":false,"usgs":true,"family":"Meyer","given":"C.E.","email":"","affiliations":[],"preferred":false,"id":185088,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Russell, P.C.","contributorId":102856,"corporation":false,"usgs":true,"family":"Russell","given":"P.C.","email":"","affiliations":[],"preferred":false,"id":185087,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Asaro, Frank","contributorId":65450,"corporation":false,"usgs":true,"family":"Asaro","given":"Frank","email":"","affiliations":[],"preferred":false,"id":185084,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Michael, Helen","contributorId":64627,"corporation":false,"usgs":true,"family":"Michael","given":"Helen","email":"","affiliations":[],"preferred":false,"id":185083,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Rowe, J.J.","contributorId":29460,"corporation":false,"usgs":true,"family":"Rowe","given":"J.J.","affiliations":[],"preferred":false,"id":185082,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Baedecker, P. A.","contributorId":95444,"corporation":false,"usgs":true,"family":"Baedecker","given":"P.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":185086,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"McCoy, G.A.","contributorId":105757,"corporation":false,"usgs":true,"family":"McCoy","given":"G.A.","email":"","affiliations":[],"preferred":false,"id":185089,"contributorType":{"id":1,"text":"Authors"},"rank":9}]}} ,{"id":6240,"text":"pp1109 - 1980 - Geology of the Round Bay quadrangle, Anne Arundel County, Maryland","interactions":[],"lastModifiedDate":"2021-10-13T19:03:45.399259","indexId":"pp1109","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1980","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":331,"text":"Professional Paper","code":"PP","onlineIssn":"2330-7102","printIssn":"1044-9612","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"1109","title":"Geology of the Round Bay quadrangle, Anne Arundel County, Maryland","docAbstract":"Six Coastal Plain formations and one group crop out in the Round Bay quadrangle near the inner edge of the Atlantic Coastal Plain physiographic province. The quadrangle lies astride the Severn River, in Anne Arundel County, near Annapolis, Md. The seven stratigraphic units aggregate as much as 128 m in outcrop. In ascending order, the units are: the upper part of the Potomac Group and the Magothy, Matawan, and Severn Formations, all of Cretaceous age; the Brightseat and Aquia Formations of Paleocene age and the Calvert Formation of Miocene age. \r\n\r\nQuaternary deposits are thin and cover only small areas; they are all mapped under one unit. Several small, thin deposits of Tertiary alluvium are mapped separately. \r\n\r\nThe largely unconsolidated Cretaceous and Tertiary formations consist chiefly of quartz, glauconite, clays, muscovite, chlorite, lignite, feldspar, and pyrite. Quaternary sediments are mostly locally derived sands, silts, and clays with some gravel and, in the finer sediments, considerable amounts of organic matter. \r\n\r\nThe Cretaceous and Tertiary units strike generally northeast; the younger the formation, the more easterly it strikes. Dips are gentle, 3.6 to 15 m per kilometer toward the southeast, and decrease upward through the section. \r\n\r\nThe Round Bay quadrangle is near the southern limit of several formations that thin progressively toward the southwest from New Jersey. Some pinch out between Betterton, on the eastern shore of Chesapeake Bay, and Round Bay, on the western shore, whereas others are present only as thin remnants 1-2 m thick. Resources of the quadrangle include abundant ground water, sand, and high land values near water.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/pp1109","usgsCitation":"Minard, J.P., May, F.E., and Christopher, R.A., 1980, Geology of the Round Bay quadrangle, Anne Arundel County, Maryland: U.S. Geological Survey Professional Paper 1109, Report: iv, 30 p.; 1 Plate: 25.00 × 28.00 inches, https://doi.org/10.3133/pp1109.","productDescription":"Report: iv, 30 p.; 1 Plate: 25.00 × 28.00 inches","costCenters":[],"links":[{"id":126756,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/pp/1109/report-thumb.jpg"},{"id":104552,"rank":700,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_4721.htm","linkFileType":{"id":5,"text":"html"},"description":"4721"},{"id":33453,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/pp/1109/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":33452,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/pp/1109/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"Maryland","county":"Anne Arundel County","otherGeospatial":"Round Bay quadrangle","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -76.625,\n 39\n ],\n [\n -76.5,\n 39\n ],\n [\n -76.5,\n 39.125\n ],\n [\n -76.625,\n 39.125\n ],\n [\n -76.625,\n 39\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4acce4b07f02db67e5ba","contributors":{"authors":[{"text":"Minard, James Pierson","contributorId":85169,"corporation":false,"usgs":true,"family":"Minard","given":"James","email":"","middleInitial":"Pierson","affiliations":[],"preferred":false,"id":152369,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"May, Fred E.","contributorId":32157,"corporation":false,"usgs":true,"family":"May","given":"Fred","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":152368,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Christopher, Raymond A.","contributorId":29812,"corporation":false,"usgs":true,"family":"Christopher","given":"Raymond","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":152367,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":22530,"text":"ofr80523 - 1980 - Surface faulting near Livermore, California, associated with the January 1980 earthquakes","interactions":[],"lastModifiedDate":"2023-09-18T21:33:01.098589","indexId":"ofr80523","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1980","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"80-523","title":"Surface faulting near Livermore, California, associated with the January 1980 earthquakes","docAbstract":"The earthquakes of 24 January (Ms 5.8) 1980 north of Livermore, California, and 26 January (Ms 5.2), were accompanied by surface faulting in the Greenville fault zone and apparently in the Las Positas fault zone also. The surface faulting was discontinuous and of small displacement. The main rupture within the Greenville fault zone trended about N.38°W. It was at least 4.2 km long and may have extended southward to Interstate Highway 580, giving a possible length of 6.2 km; both of these lengths included more gaps than observed surface rupture. Maximum displacements measured by us were about 25 mm of right slip (including afterslip through 28 January); vertical components of as much as 50 mm were seen locally, but these included gravity effects of unknown amount. The main break within the Greenville fault zones is very close to a fault strand mapped by Herd (1977, and unpublished data). A subsidiary break within the Greenville fault zone was about 0.5 km. long, had a general trend of N.46°W., and lay 0.12 to 0.25 km east of the main break. It was characterized by extension of as much as 40 mm and right slip of as much as 20 mm. This break was no more than 25 m from a fault mapped by Herd (unpublished data). Another break within the Greenville fault zone lay about 0.3 km southwest of the projection of the main break and trended about N33°W. It was at least 0.3 km long and showed mostly extension, but at several places a right-lateral component (up to 5 mm) was seen. This break was 80 to 100 m from a strand of the Greenville fault mapped by Herd (1977). Extensional fractures within the Greenville fault zone on the frontage roads north and south of Interstate Highway 580 may be related to regional extension or other processes, but do not seem to have resulted from faulting of the usual kind. One exception in this group is a fracture at the east side of Livermore valley which showed progressive increase in right-lateral displacement in February and March, 1980, and is directly on the projection of a fault in the Greenville fault zone mapped by Herd (1977). A group of more than 20 extensional fractures in Laughlin Road 1 km north of Interstate 580 probably are related to small tectonic displacements on faults in the Greenville fault zone. They are adjacent and parallel to two faults mapped by Herd (1977), are diagonal to the road, and most of them developed between 25 and 29 January, a period that included the Ms 5.2 shock of 26 January. Observations at two locations indicate tectonic displacement on the Las Positas fault zone as mapped by Herd (1977). At Vasco Road a prominent break on a strand of the fault showed about 0.5 mm of left-lateral strike slip on 7 February. An alinement array across this and other fractures at the locality indicates about 6 mm of left-lateral displacement occurred between 21 February and 26 March. On Tesla Road several right-stepping fractures, one of which showed 1.5 mm of left-lateral strike slip, lie on or close tp previously mapped strands of the Las Positas fault zone. The evidence at these two localities indicates that tectonic surface displacement occurred along at least 1.1 km of the Las Positas fault zone.","language":"English","publisher":"U.S. Geological Survey,","publisherLocation":"Reston, VA","doi":"10.3133/ofr80523","collaboration":"In cooperation with the U.S. Nuclear Regulatory Commission","usgsCitation":"Bonilla, M.G., Lienkaemper, J.J., and Tinsley, J.C., 1980, Surface faulting near Livermore, California, associated with the January 1980 earthquakes: U.S. Geological Survey Open-File Report 80-523, Report: 32 p.; Plate 1: 15.18 x 32.76 inches, https://doi.org/10.3133/ofr80523.","productDescription":"Report: 32 p.; Plate 1: 15.18 x 32.76 inches","onlineOnly":"Y","temporalStart":"1980-01-24","temporalEnd":"1980-01-26","costCenters":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true},{"id":379,"text":"Menlo Park Science Center","active":false,"usgs":true}],"links":[{"id":420923,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_11678.htm","linkFileType":{"id":5,"text":"html"}},{"id":115841,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/1980/0523/","linkFileType":{"id":5,"text":"html"}},{"id":254662,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr_80_523.gif"}],"scale":"24000","datum":"Mean Sea Level","country":"United States","state":"California","city":"Livermore","otherGeospatial":"Las Positas Valley","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -121.75,\n 37.75\n ],\n [\n -121.75,\n 37.65\n ],\n [\n -121.657,\n 37.65\n ],\n [\n -121.657,\n 37.75\n ],\n [\n -121.75,\n 37.75\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b00e4b07f02db6982a3","contributors":{"authors":[{"text":"Bonilla, Manuel G.","contributorId":74384,"corporation":false,"usgs":true,"family":"Bonilla","given":"Manuel","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":188410,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lienkaemper, James J. 0000-0002-7578-7042 jlienk@usgs.gov","orcid":"https://orcid.org/0000-0002-7578-7042","contributorId":1941,"corporation":false,"usgs":true,"family":"Lienkaemper","given":"James","email":"jlienk@usgs.gov","middleInitial":"J.","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":true,"id":188408,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Tinsley, J. C.","contributorId":65827,"corporation":false,"usgs":true,"family":"Tinsley","given":"J.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":188409,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":14387,"text":"ofr80345 - 1980 - Hydrologic monitoring program in Eldridge-Wilde and East Lake Road well-field areas, Pinellas and Hillsborough counties, Florida, 1977 water year","interactions":[],"lastModifiedDate":"2022-07-22T17:09:57.640826","indexId":"ofr80345","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1980","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"80-345","title":"Hydrologic monitoring program in Eldridge-Wilde and East Lake Road well-field areas, Pinellas and Hillsborough counties, Florida, 1977 water year","docAbstract":"The observation-well network in the vicinity of the two well fields is described in detail. Data obtained from the network from October 1976 through September 1977, as well as rainfall and pumpage records, are presented and discussed. Below-normal rainfall caused the water table and potentiometric surface of the Floridan aquifer in Eldridge-Wilde well field to recover 2 feet less in September 1977 than in the previous September. Water levels in East Lake Road will field were approximately the same in September of both years. The Southwest Florida Water Management District has established regulatory water-level and water-quality limits in several observation wells. Water levels did not drop below regulatory limits during the year. Water from two deep wells west of Eldridge-Wilde well field exceeded the regulatory limits for chloride concentrations. The position of the 250 milligram per liter chloride line is shown in cross section in the vicinity of Eldridge-Wilde well field in September 1977. Network modifications are proposed that would result in a more comprehensive knowledge of the hydrologic system.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr80345","collaboration":"Prepared in cooperation with Pinellas County, Florida","usgsCitation":"Joyner, B.F., and Gerhart, J.M., 1980, Hydrologic monitoring program in Eldridge-Wilde and East Lake Road well-field areas, Pinellas and Hillsborough counties, Florida, 1977 water year: U.S. Geological Survey Open-File Report 80-345, iv, 34 p., https://doi.org/10.3133/ofr80345.","productDescription":"iv, 34 p.","costCenters":[],"links":[{"id":148822,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1980/0345/report-thumb.jpg"},{"id":404372,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1980/0345/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"Florida","county":"Hillsborough County, Pinellas County","otherGeospatial":"Eldridge-Wilde and East Lake Road well-field areas","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -83.0291748046875,\n 27.68839232178566\n ],\n [\n -82.2930908203125,\n 27.68839232178566\n ],\n [\n -82.2930908203125,\n 28.28019589809702\n ],\n [\n -83.0291748046875,\n 28.28019589809702\n ],\n [\n -83.0291748046875,\n 27.68839232178566\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a1ae4b07f02db606b77","contributors":{"authors":[{"text":"Joyner, Boyd F.","contributorId":9278,"corporation":false,"usgs":true,"family":"Joyner","given":"Boyd","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":169368,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Gerhart, James M.","contributorId":35717,"corporation":false,"usgs":true,"family":"Gerhart","given":"James","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":169369,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":28059,"text":"wri8048 - 1980 - Distribution of nitrate in the unsaturated zone, Highland-East Highlands area, San Bernardino County, California","interactions":[],"lastModifiedDate":"2013-03-19T10:51:27","indexId":"wri8048","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1980","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":342,"text":"Water-Resources Investigations Report","code":"WRI","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"80-48","title":"Distribution of nitrate in the unsaturated zone, Highland-East Highlands area, San Bernardino County, California","docAbstract":"Nitrogen in the unsaturated soil zone in the Highland-East Highlands area of San Bernardino County, Calif., has been suspected as the source of nitrate in water from wells. Plans to recharge the local aquifers with imported surface water would raise the water table and intercept that nitrogen. This study was made to describe the distribution of inorganic nitrogen and other chemical constituents and nitrogen-using bacteria in the unsaturated zone, to relate nitrogen occurrences, in a general way, to present and historical land use, and to attempt to predict nitrogen concentrations in ground water after recharge. Some generalized correlations between nitrogen occurrence and land use were observed. In 11 of 13 test holes, the maximum nitrate-nitrogen (NO3--N) concentrations occurred within 10 feet of the surface, suggesting that the major source of nitrogen is from the surface at these sites. Test holes were ranked according to maximum NO3--N in the top 10 feet, total NO3--N in the top 10 feet, and total NO3--N in the top 40 feet. In all three rankings, the top seven test holes were the same--five in or near present or historical agricultural areas (primarily citrus groves), one in a feedlot, and one adjacent to an abandoned sewage-treatment plant. Two test holes in historically uninhabited areas ranked lowest. The control test hole in an uninhabited area ranked high in geometric mean of ammonium-nitrogen concentration (NH4+-N), suggesting that present in freshly weathered granite. The geometric means of NH4+-N concentrations in six of eight citrus-related test holes were significantly lower than in the control hole, suggesting that irrigation in citrus groves may have created conditions favoring nitrification of the primary NH4+-N. Rank correlation analyses between various measurements in test holes showed that high NO3--N concentrations tend to occur with high specific conductance and chloride concentrations in soil extracts. If recharge is carried out as planned, assuming complete mixing of the recharge water and interstitial pore water in the top 20 feet of the saturated zone, NO3--N concentrations in water at the top of the saturated zone may exceed 10 milligrams per liter in seven areas studied. Concentrations could reach as high as 66 milligrams per liter in the worst case projected. The highest concentrations may be found in three areas that are now, or were recently, citrus groves.","language":"ENGLISH","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/wri8048","collaboration":"Prepared in cooperation with the San Bernardino Valley Municipal Water District","usgsCitation":"Klein, J.M., and Bradford, W.L., 1980, Distribution of nitrate in the unsaturated zone, Highland-East Highlands area, San Bernardino County, California: U.S. Geological Survey Water-Resources Investigations Report 80-48, v, 70 p., https://doi.org/10.3133/wri8048.","productDescription":"v, 70 p.","numberOfPages":"78","costCenters":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"links":[{"id":157990,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/wri8048.png"},{"id":269696,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wri/1980/0048/WRIR80-48.pdf"}],"country":"United States","state":"California","city":"San Bernardino County","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -117.8026,33.871 ], [ -117.8026,35.8093 ], [ -114.1308,35.8093 ], [ -114.1308,33.871 ], [ -117.8026,33.871 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a6fe4b07f02db64096a","contributors":{"authors":[{"text":"Klein, John M.","contributorId":27036,"corporation":false,"usgs":true,"family":"Klein","given":"John","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":199149,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bradford, Wesley L.","contributorId":95451,"corporation":false,"usgs":true,"family":"Bradford","given":"Wesley","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":199150,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":19107,"text":"ofr80759 - 1980 - Flood magnitude and frequency of small streams in Indiana: Preliminary estimating equations","interactions":[],"lastModifiedDate":"2022-08-09T15:48:08.503051","indexId":"ofr80759","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1980","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"80-759","title":"Flood magnitude and frequency of small streams in Indiana: Preliminary estimating equations","docAbstract":"This interim report presents preliminary estimating equations developed for the ongoing study, \"Flood Frequency of Small Streams in Indiana.\" The equations were developed by the multiple-regression technique from data collected at 57 crest-stage-gage and 15 rainfall-runoff sites in the study and from 133 streamflow stations in Indiana and 11 in eastern Illinois. Peak discharge was used as the dependent variable, and basin characteristics were used as the independent variables in the analysis. Drainage area and precipitation were the most significant basin characteristics.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr80759","collaboration":"Prepared in cooperation with Indiana State Highway Commission and Federal Highway Administration","usgsCitation":"Gold, R., 1980, Flood magnitude and frequency of small streams in Indiana: Preliminary estimating equations: U.S. Geological Survey Open-File Report 80-759, iv, 44 p., https://doi.org/10.3133/ofr80759.","productDescription":"iv, 44 p.","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":346,"text":"Indiana Water Science Center","active":true,"usgs":true}],"links":[{"id":150653,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1980/0759/report-thumb.jpg"},{"id":405033,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1980/0759/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"Illinois, 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\"}}]}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49e5e4b07f02db5e70bc","contributors":{"authors":[{"text":"Gold, Robert L.","contributorId":78324,"corporation":false,"usgs":true,"family":"Gold","given":"Robert L.","affiliations":[],"preferred":false,"id":180316,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":11040,"text":"ofr80215 - 1980 - Summary of water-level and discharge records for the East Everglades area, Dade County, Florida","interactions":[],"lastModifiedDate":"2022-10-25T19:50:26.645825","indexId":"ofr80215","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1980","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"80-215","title":"Summary of water-level and discharge records for the East Everglades area, Dade County, Florida","docAbstract":"Information concerning data collected and records maintained for 25 surface-water and 10 ground-water sites in the East Everglades area is presented; listed are: location of sites, period of record, type of gage used, average discharge, and extremes for period of record. A history of records for each site includes the format of the data published and what data are stored in the U.S. Geological Survey computerized data system.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr80215","collaboration":"Prepared in cooperation with the Metropolitan Dade County Planning Department","usgsCitation":"Schneider, J.J., 1980, Summary of water-level and discharge records for the East Everglades area, Dade County, Florida: U.S. Geological Survey Open-File Report 80-215, vi, 33 p., https://doi.org/10.3133/ofr80215.","productDescription":"vi, 33 p.","costCenters":[],"links":[{"id":408720,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1980/0215/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":142587,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1980/0215/report-thumb.jpg"}],"country":"United States","state":"Florida","county":"Dade County","otherGeospatial":"East Everglades area","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -80.52154541015625,\n 25.64895443060557\n ],\n [\n -80.25787353515625,\n 25.64895443060557\n ],\n [\n -80.25787353515625,\n 25.94322678532246\n ],\n [\n -80.52154541015625,\n 25.94322678532246\n ],\n [\n -80.52154541015625,\n 25.64895443060557\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b00e4b07f02db697f3a","contributors":{"authors":[{"text":"Schneider, James J.","contributorId":22356,"corporation":false,"usgs":true,"family":"Schneider","given":"James","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":162425,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":23423,"text":"ofr80750 - 1980 - Appraisal of ground-water resources in the San Antonio Creek Valley, Santa Barbara County, California","interactions":[],"lastModifiedDate":"2022-08-16T21:39:59.411695","indexId":"ofr80750","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1980","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"80-750","title":"Appraisal of ground-water resources in the San Antonio Creek Valley, Santa Barbara County, California","docAbstract":"A nearly threefold increase in demand for water in the 154-square-mile San Antonio Creek valley in California during the period 1958-77 has increased the potential for overdraft on the ground-water basin. The hydrologic budget for this period showed a perennial yield of about 9,800 acre-feet per year and an annual ground-water discharge of about 11,400 acre-feet per year, comprising net pumpage of 7,100 acre-feet, phreatophyte evapotranspiration of 3,000 acre-feet, and base streamflow of 1 ,300 acre-feet. The base flow in San Antonio Creek could diminish to zero when net pumpage reaches 13,500 acre-feet per year. The environmentally sensitive marshland area of Barka Slough may then become stressed as water normally lost through evapotranspiration is captured by pumpage. The aquifer consists of alluvial valley fill that ranges in thickness from 0 to 3,500 feet. Ground water moves seaward from recharge areas along mountain fronts to a consolidated rock barrier about 5 miles east of the Pacific coast. Upwelling of ground water just east of the barrier has resulted in the 550-acre Barka Slough. Transmissivity of the aquifer ranges from 2,600 to 34,000 feet squared per day, with the lowest values occurring in the central part of the valley where the aquifer is thickest but probably finer grained. The salinity problems are increasing in the agricultural parts of the valley, which is east of the barrier. West of the barrier, stream and ground-water quality is poor, owing to seepage of saline water from the marine shale that underlies the area at shallow depths. A proposed basinwide monitoring program includes 17 water-level sites, 12 water-quality sampling sites, 3 streamflow measuring sites, and periodic infrared aerial photography of Barka Slough. A computer model of the ground-water flow system could be developed to assess the impact of various water-management alternatives.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr80750","usgsCitation":"Hutchinson, C.B., 1980, Appraisal of ground-water resources in the San Antonio Creek Valley, Santa Barbara County, California (WRI/OFR): U.S. Geological Survey Open-File Report 80-750, iv, 48 p., https://doi.org/10.3133/ofr80750.","productDescription":"iv, 48 p.","costCenters":[],"links":[{"id":52752,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1980/0750/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":157478,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1980/0750/report-thumb.jpg"},{"id":405235,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_11757.htm","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"California","county":"Santa Barbara County","otherGeospatial":"San Antonio Creek Valley","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -120.646,\n 34.678\n ],\n [\n -120.112,\n 34.678\n ],\n [\n -120.112,\n 34.853\n ],\n [\n -120.646,\n 34.853\n ],\n [\n -120.646,\n 34.678\n ]\n ]\n ]\n }\n }\n ]\n}","edition":"WRI/OFR","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ac6e4b07f02db67a394","contributors":{"authors":[{"text":"Hutchinson, C. B.","contributorId":94655,"corporation":false,"usgs":true,"family":"Hutchinson","given":"C.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":190078,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":15306,"text":"ofr80283 - 1980 - Side-scan sonograph data from eastern Rhode Island Sound and Vineyard Sound, Massachusetts","interactions":[],"lastModifiedDate":"2018-06-18T15:10:40","indexId":"ofr80283","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1980","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"80-283","title":"Side-scan sonograph data from eastern Rhode Island Sound and Vineyard Sound, Massachusetts","docAbstract":"Two hundred twenty-four kilometers of closely spaced side-scan sonograph data have been collected from eastern Rhode Island Sound and Vineyard Sound, Mass., by the U.S. Geological Survey in cooperation with the New England Division of the U.S. Army Corps of Engineers. These data were obtained during the August 1976 cruise of the B./V A. E. VERRILL as part of a continuing regional study of the Massachusetts offshore area to determine the suitability and potential environmental effect of ocean dumping of large volumes of harbor dredge-spoil material.
Specifically, as part of a proposed Federal Harbor improvement and maintenance dredging of Fall River and Mt. Hope Bay, Mass. under the jurisdiction of the Army Corps of Engineers, the disposal of the resultant dredge spoil is planned for an ocean dump site located in eastern Rhode Island Sound. The proposed site is also under consideration as a \"regional\" disposal grounds to be utilized by State and private organizations performing dredging work authorized by the Corps.
The data were obtained by using a Klein Side Scan Towfish* (sonar frequency, 100 kHz; pulse length, 0.1 msec). Signal returns from the starboard and port scans were automatically tuned, texture-enhanced, and printed centerout on 2 channels of a 3-channel Klein* wet-paper graphic recorder. Scan ranges of 75 m and 150 m were used. For comparison of graphic display, incoming signals from the starboard scan were also recorded on the third channel using a manual (nonautomatic) tuning mode. Navigational control was provided by Loran -C (positional accuracy within 0.2 km). Positional information was logged at 15-minute intervals and at major course changes.
The original records may be examined at the Data Library, U.S. Geological Survey, Woods Hole, MA 02543. Microfilm copies of the data are available for purchase from the National Geophysical and Solar-Terrestrial Data Center (NGSDC), Boulder, CO 80302.
","language":"ENGLISH","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr80283","collaboration":"Prepared in cooperation with the New England Division of the U.S. Army Corps of Engineers","usgsCitation":"O’Hara, C.J., 1980, Side-scan sonograph data from eastern Rhode Island Sound and Vineyard Sound, Massachusetts: U.S. Geological Survey Open-File Report 80-283, 3 p., [1] leaf of plates :map ;28 cm., https://doi.org/10.3133/ofr80283.","productDescription":"3 p., [1] leaf of plates :map ;28 cm.","costCenters":[],"links":[{"id":146394,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr80283.PNG"},{"id":259868,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1980/0283/ofr1980283.pdf","text":"Report","size":"110 KB","linkFileType":{"id":1,"text":"pdf"},"description":"OFR 1980-283"}],"contact":"Coastal and Marine Geology Program
U.S. Geological Survey
384 Woods Hole Road
Woods Hole, MA 02543