From the more than 1500 Mammoth Lakes earthquakes recorded on three-component digital seismographs (Spudich et al., 1981), 150 were used in an analysis of the locations, mechanism, and source parameters. A composite fault plane solution of nine earthquakes 3.9 ≤ M ≤ 5.1 defines a right-lateral strike slip mechanism on a steeply dipping nearly east-west plane striking S75°E or left-lateral strike slip on a nearly north-south plane striking N10°E. Vertical cross sections of well-located aftershocks indicate possibly three east-west planes that coincide with the locations of the four largest earthquakes with ML ≥ 6.0. Using the spectral analysis of S waves (Brune, 1970), source parameters for 67 earthquakes were determined. Forty-eight had magnitudes greater than or equal to 3.0. Seismic moments ranged from 9.20×1018 dyn cm to 2.33×1024 dyn cm. Earthquakes with seismic moment greater than about 1.0×1021 dyn cm had nearly constant stress drops (≃ 50 bars); earthquakes with seismic moment less than about 1.0×1021 dyn cm had stress drops that apparently decrease as seismic moment decreases.
","language":"English","publisher":"John Wiley & Sons","doi":"10.1029/JB087iB06p04595","usgsCitation":"Archuleta, R.J., Cranswick, E., Mueller, C., and Spudich, P., 1982, Source parameters of the 1980 Mammoth Lakes, California, earthquake sequence: Journal of Geophysical Research B: Solid Earth, v. 87, no. 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Ralph J.","contributorId":77801,"corporation":false,"usgs":true,"family":"Archuleta","given":"Ralph","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":698850,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Cranswick, Edward","contributorId":15611,"corporation":false,"usgs":true,"family":"Cranswick","given":"Edward","email":"","affiliations":[],"preferred":false,"id":698851,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Mueller, Charles","contributorId":57178,"corporation":false,"usgs":true,"family":"Mueller","given":"Charles","affiliations":[],"preferred":false,"id":698852,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Spudich, Paul","contributorId":54579,"corporation":false,"usgs":true,"family":"Spudich","given":"Paul","affiliations":[],"preferred":false,"id":698853,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70188680,"text":"70188680 - 1982 - Marine ice-pushed boulder ridge, Beaufort Sea, Alaska","interactions":[],"lastModifiedDate":"2017-06-21T09:48:11","indexId":"70188680","displayToPublicDate":"1982-12-31T00:00:00","publicationYear":"1982","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":894,"text":"Arctic","active":true,"publicationSubtype":{"id":10}},"title":"Marine ice-pushed boulder ridge, Beaufort Sea, Alaska","docAbstract":"If the San Andreas fault with about 300 km of right slip, the Carlock fault with about 60 km of left slip, and the Big Pine fault with about 15 km of left slip are considered to have been contemporaneously active, a space problem at their high-angle junctions becomes apparent. Large crustal masses converge in the area of the junctions as a result of the simultaneous large displacements on the faults. We present here a model in which an early straight north-northwest–trending San Andreas deforms to its present bent configuration in response to a westward displacement of crust north of the Garlock fault. During this deformation, the crust north of the Garlock in the vicinity of the junction undergoes north-south shortening, while the fault junction migrates along the trace of the San Andreas fault to the southeast relative to its original position. As a result of this migration, the Mojave area is displaced to the east relative to the original junction position. We suggest a similar history in mirror image for the Big Pine fault and the areas of crust adjacent to it.
","language":"English","publisher":"Geological Society of America","doi":"10.1130/0091-7613(1982)10<358:KEOTJO>2.0.CO;2","usgsCitation":"Bohannon, R.G., and Howell, D.G., 1982, Kinematic evolution of the junction of the San Andreas, Garlock, and Big Pine faults, California: Geology, v. 10, no. 7, p. 358-363, https://doi.org/10.1130/0091-7613(1982)10<358:KEOTJO>2.0.CO;2.","productDescription":"6 p.","startPage":"358","endPage":"363","costCenters":[],"links":[{"id":342792,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","otherGeospatial":"Big Pine fault, Garlock fault, San Andreas 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\"}}]}","volume":"10","issue":"7","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"594cd740e4b062508e3951e3","contributors":{"authors":[{"text":"Bohannon, Robert G. rbohannon@usgs.gov","contributorId":2255,"corporation":false,"usgs":true,"family":"Bohannon","given":"Robert","email":"rbohannon@usgs.gov","middleInitial":"G.","affiliations":[],"preferred":true,"id":699733,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Howell, David G.","contributorId":59874,"corporation":false,"usgs":true,"family":"Howell","given":"David","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":699734,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70188949,"text":"70188949 - 1982 - Uranium-lead isotopic ages from the Sierra Nevada Batholith, California","interactions":[],"lastModifiedDate":"2017-06-27T17:47:14","indexId":"70188949","displayToPublicDate":"1982-12-31T00:00:00","publicationYear":"1982","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2314,"text":"Journal of Geophysical Research B: Solid Earth","active":true,"publicationSubtype":{"id":10}},"title":"Uranium-lead isotopic ages from the Sierra Nevada Batholith, California","docAbstract":"This study provides new information on the timing and distribution of Mesozoic magmatic events in the Sierra Nevada batholithic complex chiefly between 36° and 37°N. latitude. U-Pb ages have been determined for 133 zircon and 7 sphene separates from 82 samples of granitoid rocks. Granitoid rocks in this area range in age from 217 to 80 m.y. Triassic intrusions are restricted to the east side of the batholith; Jurassic plutons occur south of the Triassic plutons east of the Sierra Nevada, as isolated masses within the Cretaceous batholith, and in the western foothills of the range; Cretaceous plutons form a continuous belt along the axis of the batholith and occur as isolated masses east of the Sierra Nevada. No granitic intrusions were emplaced for 37 m.y. east of the Sierra Nevada following the end of Jurassic plutonism. However, following emplacement of the eastern Jurassic granitoids, regional extension produced a fracture system at least 350 km long into which the dominantly mafic, calc-alkalic Independence dike swarm was intruded 148 m.y. ago. The dike fractures probably represents a period of regional crustal extension caused by a redistribution of the regional stress pattern accompanying the Nevadan orogeny. Intrusion of Cretaceous granitic plutons began in large volume about 120 m.y. ago in the western Sierra Nevada and migrated steadily eastward for 40 m.y. at a rate of 2.7 mm/y. This slow and constant migration indicates remarkably uniform conditions of subduction with perhaps downward migration of parent magma generation or a slight flattening of the subduction zone. Such steady conditions could be necessary for the production of large batholithic complexes such as the Sierra Nevada. The abrupt termination of plutonism 80 m.y. ago may have resulted from an increased rate of convergence of the American and eastern Pacific plates and dramatic flattening of the subduction zone. U-Pb ages of the Giant Forest-alaskite sequence in Sequoia National Park are all in the range 99±3 m.y., indicating a relatively short period of emplacement and cooling for this nested group of plutons. U-Pb ages of a mafic inclusion and its host granodiorite indicate that both were derived from a common source or that the mafic inclusion was totally equilibrated with the granodioritic magma. Comparison of isotopic ages determined by different methods such as zircon U-Pb, sphene U-Pb, hornblende K-Ar, and biotite K-Ar suggests that zircon U-Pb ages generally approximate the emplacement age of a pluton. However, some plutons probably contain inherited or entrained old zircons, and the zircons of some samples are disturbed by younger thermal and metamorphic events. The ages reported here are consistent with U-Pb age determinations previously made on granitic rocks to the north [Stern et al., 1981], The age distribution of granitic belts determined here is in general agreement with those established by K-Ar dating [Evernden and Kistler, 1970] but does not differentiate the five epochs of plutonism determined in their study.
","language":"English","publisher":"American Geophysical Union","doi":"10.1029/JB087iB06p04761","usgsCitation":"Chen, J., 1982, Uranium-lead isotopic ages from the Sierra Nevada Batholith, California: Journal of Geophysical Research B: Solid Earth, v. 87, no. B6, p. 4761-4784, https://doi.org/10.1029/JB087iB06p04761.","productDescription":"24 p.","startPage":"4761","endPage":"4784","costCenters":[],"links":[{"id":343049,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","otherGeospatial":"Sierra Nevada","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -118.89404296875,\n 35.37113502280101\n ],\n [\n -117.1142578125,\n 35.38904996691167\n ],\n [\n -116.76269531249999,\n 35.47856499535729\n ],\n [\n -116.12548828124999,\n 36.03133177633187\n ],\n [\n -120.0146484375,\n 39.01064750994083\n ],\n [\n -120.5419921875,\n 40.07807142745009\n ],\n [\n -121.35498046875,\n 40.94671366508002\n ],\n [\n -122.14599609375001,\n 41.44272637767212\n ],\n [\n -122.40966796874999,\n 40.97989806962013\n ],\n [\n -122.10205078125,\n 40.54720023441049\n ],\n [\n -121.2451171875,\n 39.198205348894795\n ],\n [\n -120.52001953124999,\n 38.35888785866677\n ],\n [\n -120.21240234375001,\n 37.63163475580643\n ],\n [\n -119.794921875,\n 37.19533058280065\n ],\n [\n -118.89404296875,\n 35.37113502280101\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"87","issue":"B6","noUsgsAuthors":false,"publicationDate":"2012-09-20","publicationStatus":"PW","scienceBaseUri":"59536ee0e4b062508e3c7b17","contributors":{"authors":[{"text":"Chen, J.","contributorId":104634,"corporation":false,"usgs":true,"family":"Chen","given":"J.","email":"","affiliations":[],"preferred":false,"id":701554,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70011472,"text":"70011472 - 1982 - Active geologic processes in Barrow Canyon, northeast Chukchi Sea","interactions":[],"lastModifiedDate":"2024-10-11T17:33:36.143825","indexId":"70011472","displayToPublicDate":"1982-11-01T00:00:00","publicationYear":"1982","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2667,"text":"Marine Geology","active":true,"publicationSubtype":{"id":10}},"title":"Active geologic processes in Barrow Canyon, northeast Chukchi Sea","docAbstract":"Circulation patterns on the shelf and at the shelf break appear to dominate the Barrow Canyon system. The canyon's shelf portion underlies and is maintained by the Alaska Coastal Current (A.C.C.), which flows northeastward along the coast toward the northeast corner of the broad Chukchi Sea. Offshelf and onshelf advective processes are indicated by oceanographic measurements of other workers. These advective processes may play an important role in the production of bedforms that are found near the canyon head as well as in processes of erosion or non-deposition in the deeper canyon itself. Coarse sediments recovered from the canyon axis at 400 to 570 m indicate that there is presently significant flow along the canyon. The canyon hooks left at a point north of Point Barrow where the A.C.C. loses its coastal constriction. The left hook, as well as preferential west-wall erosion, continues down to the abyssal plain of the Canada Basin at 3800 m. A possible explanation for the preferential west-wall erosion along the canyon, at least for the upper few hundred meters, is that the occasional upwelling events, which cause nutrient-rich water to flow along the west wall would in turn cause larger populations of burrowing organisms to live there than on the east wall, and that these organisms cause high rates of bioerosion. This hypothesis assumes that the dominant factor in the canyon's erosion is biological activity, not current velocity. Sedimentary bedforms consisting of waves and furrows are formed in soft mud in a region on the shelf west of the canyon head; their presence there perhaps reflects: (a) the supply of fine suspended sediments delivered by the A.C.C. from sources to the south, probably the Yukon and other rivers draining northwestern Alaska; and (b) the westward transport of these suspended sediments by the prevailing Beaufort Gyre which flows along the outer shelf.
","language":"English","publisher":"Elsevier","doi":"10.1016/0025-3227(82)90061-5","usgsCitation":"Eittreim, S., Grantz, A., and Greenberg, J., 1982, Active geologic processes in Barrow Canyon, northeast Chukchi Sea: Marine Geology, v. 50, no. 1-2, p. 61-76, https://doi.org/10.1016/0025-3227(82)90061-5.","productDescription":"16 p.","startPage":"61","endPage":"76","costCenters":[],"links":[{"id":220708,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Barrow Canyon, northeast Chukchi Sea","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -164.9782036874746,\n 72.59817606230985\n ],\n [\n -164.9782036874746,\n 70.87893177138113\n ],\n [\n -153.0605673497228,\n 70.87893177138113\n ],\n [\n -153.0605673497228,\n 72.59817606230985\n ],\n [\n -164.9782036874746,\n 72.59817606230985\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"50","issue":"1-2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e6abe4b0c8380cd47592","contributors":{"authors":[{"text":"Eittreim, Stephen","contributorId":102553,"corporation":false,"usgs":true,"family":"Eittreim","given":"Stephen","email":"","affiliations":[],"preferred":false,"id":361193,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Grantz, Arthur agrantz@usgs.gov","contributorId":2585,"corporation":false,"usgs":true,"family":"Grantz","given":"Arthur","email":"agrantz@usgs.gov","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":361192,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Greenberg, Jonathan","contributorId":9627,"corporation":false,"usgs":true,"family":"Greenberg","given":"Jonathan","affiliations":[],"preferred":false,"id":361194,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70011552,"text":"70011552 - 1982 - Modern sedimentary environments on the Rhode Island inner shelf, off the eastern United States","interactions":[],"lastModifiedDate":"2024-10-16T15:41:34.328013","indexId":"70011552","displayToPublicDate":"1982-10-01T00:00:00","publicationYear":"1982","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2667,"text":"Marine Geology","active":true,"publicationSubtype":{"id":10}},"title":"Modern sedimentary environments on the Rhode Island inner shelf, off the eastern United States","docAbstract":"Analyses of side-scan sonar records along with previously published bathymetric, textural and subbottom data reveal the sedimentary environments on the inner Continental Shelf south of Narragansett Bay, Rhode Island. The bottom topography in this area is characterized by a broad central depression bordered by shallow, irregular sea floor on the north and east and by a discontinuous, curvilinear ridge on the south and west.
Four distinct environments were identified:
(1) Pre-Mesozoic coastal rocks are exposed on the sea floor at isolated locations near the shore (waterdepths < 32 m). These exposures have pronounced, irregular topographic relief and produce blotchy patterns op side-scan sonographs.
(2) Glacial moraine deposits form the discontinuous offshore ridge. These deposits have hummocky sea-floor relief, are covered by lag gravel and boulders, and appear as predominantly black (strongly reflective) patterns on the side-scan records.
(3) Over most of the shallow, irregular bottom in the northeast, on the flanks of the morainal ridge, and atop bathymetric highs, the sea floor is characterized as a mosaic of light and dark patches and lineations. The dark (more reflective) zones are areas of coarse sands and megaripples (wavelengths = 0.8--1.2 m) that either have no detectable relief or are slightly depressed relative to surrounding (fight) areas of finer-grained sands.
(4) Smooth beds that produce nearly featureless patterns on the sonographs occupy the broad central bathymetric depression as well as smaller depressions north and east of Block Island. Within the broad depression, sonographs having practically no shading indicate a central zone of modern sandy silt, whereas records having moderate tonality define a peripheral belt of silty sand.
The sedimentary environments that are outlined range from erosional or nondepositional (bedrock, glacial moraine) to depositional (featureless beds), and include areas that may reflect a combination of erosional and depositional processes (textural patchiness). The distribution and characteristics of the environments reveal the general post-glacial sedimentary history of this area and provide a guide to future utilization of the shelf surface.
Geologic coal-resource appraisals, which typically describe the location and general characteristics of coalbeds, do not generally provide enough information to estimate the cost of developing the resource or to predict the escalation of costs expected to result from physical depletion. This paper considers the nature of data and methods of appraisal required to provide this cost information to policymakers. Illinois is used as a prototype area for analysis because of its long history of coal mining and its demonstrated coal reserve base of strippable coal that exceeds all but two of the States in the United States. Evidence of gradual depletion of Illinois strippable coal reserves is provided by declining labor productivity, decreasing average mine size, and increasing overburden depth. The procedures used to estimate the costs of mining remaining deposits indicate that the physical characteristics that will affect mining costs most significantly are depth of overburden, thickness of coal seam, and areal extent of coal of the minable reserve blocks. Findings presented here provide guidelines for the collection of economic and geologic data in order to improve coal appraisals, particularly those currently in progress in the Western United States.
A wedge-shaped, landward thickening mass of sedimentary deposits composed chiefly of terrigenous turbidite beds underlies the west-south west-trending Amlia sector (172°20′–173°30′W) of the Aleutian Trench. Pacific oceanic crust dips northward beneath the sector's sedimentary wedge and obliquely underthrusts (30° off normal) the adjacent Aleutian Ridge. The trench floor and subsurface strata dip gently northward toward the base of the inner trench slope. The dip of the trench deposits increases downsection from about 0.2° at the trench floor to as much as 6–7° just above basement. The wedge is typically 2–2.5 km thick, but it is thickest (3.7–4.0 km) near the base of the inner slope overlying the north-trending Amlia Fracture Zone and also east of this structure. Slight undulations and relatively abrupt offsets of the trench floor reflect subsurface and generally west-trending structures within the wedge that are superimposed above ridges and swales in the underlying oceanic basement. The southern or seaward side of some of these structures are bordered by high-angle faults or abrupt flexures. Across these offsets the northern side of the trench floor and underlying wedge is typically upthrown.
West-flowing turbidity currents originating along the Alaskan segment of the trench (1200 km to the east) probably formed the greater part of the Amlia wedge during the past 0.5 m.y. The gentle northward or cross-trench inclination of the trench floor and underlying wedge probably reflects regional downbending of the oceanic lithosphere and trench-floor basement faulting and rotation. Much of the undulatory flexuring of the trench wedge can be attributed to differential compaction over buried basement relief. However, abrupt structural offsets attest to basement faulting. Faulting is associated with extensional earthquakes in the upper crust. The west-trending basement offsets are probably normal faults that dip steeply south or antithetic to the north dip of the subducting oceanic crust. Up-to-arc extensional faulting can be attributed to the downbending of the Pacific plate into the Aleutian subduction zone. The rupturing direction and dip is controlled by zones of crustal weakness that parallel north Pacific magnetic anomalies, which were formed south of a late Cretaceous—early Tertiary spreading center (Kula—Pacific Ridge). The strike of these anomalies is fortuitously nearly parallel to the Amlia sector. The up-to-arc fracturing style may locally assist in elevating blocks of trench deposits to form the toe of the trench's landward slope, which is in part underlain by a compressionally thickened accretionary mass of older trench deposits. Compressional structures that can be related to underthrusting are only indistinctly recorded in the turbidite wedge that underlies the trench floor.
","language":"English","publisher":"Elsevier","doi":"10.1016/0025-3227(82)90132-3","usgsCitation":"Scholl, D., Vallier, T., and Stevenson, A., 1982, Sedimentation and deformation in the Amlia Fracture Zone sector of the Aleutian Trench: Marine Geology, v. 48, no. 1-2, p. 105-134, https://doi.org/10.1016/0025-3227(82)90132-3.","productDescription":"30 p.","startPage":"105","endPage":"134","costCenters":[],"links":[{"id":221697,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -183.5494359056866,\n 55.16267802553958\n ],\n [\n -183.5494359056866,\n 52.52758290654043\n ],\n [\n -160.0547683286029,\n 52.52758290654043\n ],\n [\n -160.0547683286029,\n 55.16267802553958\n ],\n [\n -183.5494359056866,\n 55.16267802553958\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"48","issue":"1-2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b8a56e4b08c986b317148","contributors":{"authors":[{"text":"Scholl, D.W.","contributorId":106461,"corporation":false,"usgs":true,"family":"Scholl","given":"D.W.","email":"","affiliations":[],"preferred":false,"id":362111,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Vallier, T.L.","contributorId":69526,"corporation":false,"usgs":true,"family":"Vallier","given":"T.L.","affiliations":[],"preferred":false,"id":362110,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Stevenson, A.J.","contributorId":27864,"corporation":false,"usgs":true,"family":"Stevenson","given":"A.J.","email":"","affiliations":[],"preferred":false,"id":362109,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70011809,"text":"70011809 - 1982 - Submarine valleys in the northeastern Gulf of Alaska: Characteristics and probable origin","interactions":[],"lastModifiedDate":"2024-10-16T16:01:50.866852","indexId":"70011809","displayToPublicDate":"1982-06-01T00:00:00","publicationYear":"1982","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2667,"text":"Marine Geology","active":true,"publicationSubtype":{"id":10}},"title":"Submarine valleys in the northeastern Gulf of Alaska: Characteristics and probable origin","docAbstract":"The continental shelf of the northeastern Gulf of Alaska Between Prince William Sound and Cross Sound is cut by at least eight major valleys. From west to east, these are Hinchinbrook Seavalley, Egg Island Trough, Kayak Trough, Bering Trough, Pamplona Troughs, Yakutat Valley, Alsek Valley and Yakobi Valley. Evidence common to most of these troughs or valleys indicating that the present morphology is due to glacial processes includes: (1) a pre-Holocene subbottom erosional surface incised into the underlying lithified strata of the shelf; (2) U-shaped cross sections, both at the sea floor and at the pre-Holocene erosional surface; (3) concave longitudinal sections, commonly shoaling at the seaward end; (4) till-like sediments collected from the walls or outer shelf adjacent to the troughs; and (5) seismic stratigraphy that can be correlated with bottom samples indicative of glacially derived strata.
Depressions with tens of meters of relief are present on the pre-Holocene subbottom erosional surface beneath most of these valleys. These depressions have been partially filled by a seaward-thinning wedge of Holocene glacial flour (clayey silt) that is filling the valleys and blanketing the inner shelf at rates as high as 15 mm/yr (based on 210Pb measurements). Although glaciation played a dominant role in the modern morphology of these sea valleys, structural features, including structurally controlled topographic highs on the shelf (e.g. Tarr Bank, Kayak Island, Pamplona Spur and Fairweather Ground) influenced the flow directions of the glacial lobes.
","language":"English","publisher":"Elsevier","doi":"10.1016/0025-3227(82)90070-6","usgsCitation":"Carlson, P.R., Bruns, T.R., Molnia, B.F., and Schwab, W., 1982, Submarine valleys in the northeastern Gulf of Alaska: Characteristics and probable origin: Marine Geology, v. 47, no. 3-4, p. 217-242, https://doi.org/10.1016/0025-3227(82)90070-6.","productDescription":"26 p.","startPage":"217","endPage":"242","costCenters":[{"id":36171,"text":"National Civil Applications Center","active":true,"usgs":true}],"links":[{"id":221064,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"northeastern Gulf of Alaska","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -146.67638035410144,\n 60.976930988760245\n ],\n [\n -146.67638035410144,\n 52.62253667132154\n ],\n [\n -130.93473329233763,\n 52.62253667132154\n ],\n [\n -130.93473329233763,\n 60.976930988760245\n ],\n [\n -146.67638035410144,\n 60.976930988760245\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"47","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b9d3ae4b08c986b31d6ff","contributors":{"authors":[{"text":"Carlson, Paul R.","contributorId":81469,"corporation":false,"usgs":true,"family":"Carlson","given":"Paul","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":362008,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bruns, Terry R.","contributorId":29420,"corporation":false,"usgs":true,"family":"Bruns","given":"Terry","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":362007,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Molnia, Bruce F. 0000-0001-8102-6269","orcid":"https://orcid.org/0000-0001-8102-6269","contributorId":301013,"corporation":false,"usgs":true,"family":"Molnia","given":"Bruce","email":"","middleInitial":"F.","affiliations":[{"id":36171,"text":"National Civil Applications Center","active":true,"usgs":true}],"preferred":true,"id":362005,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Schwab, W.C.","contributorId":69989,"corporation":false,"usgs":true,"family":"Schwab","given":"W.C.","email":"","affiliations":[],"preferred":false,"id":362006,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70208962,"text":"70208962 - 1982 - Mid-Paleozoic age of the Roberts thrust unsettled by new data from northern Nevada ","interactions":[],"lastModifiedDate":"2020-03-09T13:22:00","indexId":"70208962","displayToPublicDate":"1982-03-09T13:10:01","publicationYear":"1982","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1796,"text":"Geology","active":true,"publicationSubtype":{"id":10}},"title":"Mid-Paleozoic age of the Roberts thrust unsettled by new data from northern Nevada ","docAbstract":"The Roberts thrust is a major thrust in Nevada on which Ordovician to Devonian siliceous facies rocks were carried more than 80 km eastward over contemporaneous carbonate facies. For more than two decades, a mid-Paleozoic age for this structure has been widely accepted. The bases for dating the thrust are (1) the assumption that the Roberts thrust formed at the time of the Antler orogeny—a reliably dated mid-Paleozoic event, and (2) the concept of an overlapping assemblage consisting of sedimentary strata deposited on both the allochthon and autochthon. The first assumption is unproved, and the second relies on another assumption: that the overlap assemblage was not cut and telescoped by the Roberts thrust. In the years since a mid-Paleozoic age for the Roberts thrust became widely accepted, much new information on the stratigraphy and facies relations of Mississippian rocks in northern Nevada has accumulated. One interpretation of these new data suggests that in the Pinon Range, where a mid-Paleozoic age for the thrust was most convincingly displayed, the overlap assemblage actually may have been cut by a major thrust that juxtaposed contrasting facies of Mississippian rocks. If so, the principal evidence used to date the Roberts thrust is compromised, and the time has come for an agonizing reappraisal of all evidence bearing on the question. A mid-Paleozoic age can no longer be taken for granted, and a post-Paleozoic age cannot be ruled out.
","language":"English","publisher":"GSA","doi":"10.1130/0091-7613(1982)10<298:MAOTRT>2.0.CO;2","usgsCitation":"Ketner, K.B., and Smith, F.J., 1982, Mid-Paleozoic age of the Roberts thrust unsettled by new data from northern Nevada : Geology, v. 10, no. 6, p. 298-303, https://doi.org/10.1130/0091-7613(1982)10<298:MAOTRT>2.0.CO;2.","productDescription":"6 p.","startPage":"298","endPage":"303","costCenters":[],"links":[{"id":373016,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Nevada","otherGeospatial":"Northern Nevada","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -116.52099609375,\n 39.317300373271024\n ],\n [\n -113.99414062499999,\n 39.26628442213066\n ],\n [\n -114.12597656249999,\n 42.01665183556825\n ],\n [\n -117.48779296875,\n 42.00032514831621\n ],\n [\n -117.72949218749999,\n 39.11301365149975\n ],\n [\n -116.52099609375,\n 39.317300373271024\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"10","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Ketner, Keith B.","contributorId":957,"corporation":false,"usgs":true,"family":"Ketner","given":"Keith","email":"","middleInitial":"B.","affiliations":[],"preferred":true,"id":784207,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Smith, Fred J. Jr.","contributorId":30864,"corporation":false,"usgs":true,"family":"Smith","given":"Fred","suffix":"Jr.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":784208,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70011802,"text":"70011802 - 1982 - Age determination of late Pleistocene marine transgression in western Alaska","interactions":[],"lastModifiedDate":"2024-10-16T15:49:36.594723","indexId":"70011802","displayToPublicDate":"1982-03-01T00:00:00","publicationYear":"1982","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2667,"text":"Marine Geology","active":true,"publicationSubtype":{"id":10}},"title":"Age determination of late Pleistocene marine transgression in western Alaska","docAbstract":"Dating molluscs from sediments representing the Kotzebuan marine transgression in Alaska yields an average uranium-series age of 104,000 ± 22,000 yrs B.P. This and other selected Pleistocene marine deposits of western Alaska are tentatively correlated with radiometrically dated units of eastern Baffin Island, Arctic Canada.
","language":"English","publisher":"Elsevier","doi":"10.1016/0025-3227(82)90147-5","usgsCitation":"Szabo, B.J., 1982, Age determination of late Pleistocene marine transgression in western Alaska: Marine Geology, v. 46, no. 1-2, p. M1-M8, https://doi.org/10.1016/0025-3227(82)90147-5.","productDescription":"8 p.","startPage":"M1","endPage":"M8","costCenters":[],"links":[{"id":220995,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"western Alaska","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n 188.20764945303154,\n 72.48831967560417\n ],\n [\n 188.20764945303154,\n 59.41217547528831\n ],\n [\n 200.67139608434223,\n 59.41217547528831\n ],\n [\n 200.67139608434223,\n 72.48831967560417\n ],\n [\n 188.20764945303154,\n 72.48831967560417\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"46","issue":"1-2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e8eae4b0c8380cd47f81","contributors":{"authors":[{"text":"Szabo, Barney J.","contributorId":6848,"corporation":false,"usgs":true,"family":"Szabo","given":"Barney","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":361989,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70208103,"text":"70208103 - 1982 - A late Pleistocene glacial chronology for the southern Brooks Range: Stratigraphic record and regional significance","interactions":[],"lastModifiedDate":"2020-01-27T14:52:38","indexId":"70208103","displayToPublicDate":"1982-01-27T14:44:37","publicationYear":"1982","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1723,"text":"GSA Bulletin","active":true,"publicationSubtype":{"id":10}},"title":"A late Pleistocene glacial chronology for the southern Brooks Range: Stratigraphic record and regional significance","docAbstract":"Radiocarbon dates from 11 measured sections in the Koyukuk region provide a chronology of the last Pleistocene glaciation. Glaciers were advancing strongly by 24,000 yr ago; they built moraines near the south flank of the Brooks Range, retreated briefly about 22,000 to 20,000 yr B.P., then readvanced at least one more time into their terminal zones. Glaciation was accompanied by alluviation of the Koyukuk and Kobuk drainage systems and by periglacial processes that resemble those taking place today farther north and at higher altitudes. Moraines near the south flank of the range were being revegetated by 13,500 yr B.P. A strong final readvance into end-moraine belts of some northern valleys occurred about 13,000 to 12,500 yr ago, and this event may be synchronous with less extensive glacier readvances in upper valleys of the Koyukuk region. Upper valleys were largely deglaciated by 11,800 yr B.P.
Dated Stratigraphic sections from the northern Alaska Range show similar ages for initiation and close of glaciation and also suggest a possible interstadial episode about 20,000 yr ago. Scanty records of fluctuations during ice wastage probably reflect the general scarcity of datable wood, peat, and organic soils between about 19,500 and 13,500 yr ago. The Brooks Range and Alaska Range chronologies closely approximate glacial successions determined else-where in eastern Beringia and in Siberia. Advance and retreat of glaciers throughout this region evidently were associated with widespread climatic changes that also controlled the late Wisconsin history of the Laurentide ice sheet.
The Itkillik II and late Itkillik phases of former usage are part of a single glaciation that was entirely separate from the preceding Itkillik I ice advance. For this reason, the local term \"Walker Lake Glaciation\" is here extended to the last major glaciation of the entire southern Brooks Range, and use of Itkillik phases should be discontinued. The term \"Itkillik Glaciation\" is hereby restricted to the next older ice advance, in accord with its original definition.
Cold and dry conditions during the last glaciation of eastern Beringia are indicated by (1) relatively small mountain glaciers, (2) slight (200-m) depression of glaciation limits below modern values, (3) periglacial features indicating severe frost action on slopes with little protective plant cover, (4) widespread accretion of eolian sand, (5) low pollen influx rates, (6) scarcity of radiocarbon-datable organic remains, and (7) general absence of carbonaceous paleosols. Plant growth may have been much more restricted than generally believed, with relatively low capacity to support grazing animals and human hunting bands.
","language":"English","publisher":"GSA","doi":"10.1130/0016-7606(1982)93<700:ALPGCF>2.0.CO;2","usgsCitation":"Hamilton, T.D., 1982, A late Pleistocene glacial chronology for the southern Brooks Range: Stratigraphic record and regional significance: GSA Bulletin, v. 93, no. 8, p. 700-716, https://doi.org/10.1130/0016-7606(1982)93<700:ALPGCF>2.0.CO;2.","productDescription":"17 p.","startPage":"700","endPage":"716","costCenters":[],"links":[{"id":371601,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Southern Brooks Range","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -156.796875,\n 66.51326044311185\n ],\n [\n -148.88671874999997,\n 66.51326044311185\n ],\n [\n -148.88671874999997,\n 68.65655498475735\n ],\n [\n -156.796875,\n 68.65655498475735\n ],\n [\n -156.796875,\n 66.51326044311185\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"93","issue":"8","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Hamilton, T. D.","contributorId":36921,"corporation":false,"usgs":true,"family":"Hamilton","given":"T.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":780471,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70011587,"text":"70011587 - 1982 - Depositional setting and diagenetic evolution of some Tertiary unconventional reservoir rocks, Uinta Basin, Utah","interactions":[],"lastModifiedDate":"2023-01-10T17:56:03.888123","indexId":"70011587","displayToPublicDate":"1982-01-01T00:00:00","publicationYear":"1982","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":701,"text":"American Association of Petroleum Geologists Bulletin","active":true,"publicationSubtype":{"id":10}},"title":"Depositional setting and diagenetic evolution of some Tertiary unconventional reservoir rocks, Uinta Basin, Utah","docAbstract":"The Douglas Creek Member of the Tertiary Green River Formation underlies much of the Uinta basin, Utah, and contains large volumes of oil and gas trapped in a complex of fractured low-permeability sandstone reservoirs. In the southeastern part of the basin at Pariette Bench, the Eocene Douglas Creek Member is a thick sequence of fine-grained alluvial sandstone complexly intercalated with lacustrine claystone and carbonate rock. Sediments were deposited in a subsiding intermontane basin along the shallow fluctuating margin of ancient Lake Uinta. Although the Uinta basin has undergone postdepositional uplift and erosion, the deepest cored rocks at Pariette Bench have never been buried more than 9,800 ft (3,000 m).
The sandstones, dominantly lithic arkoses and feldspathic litharenites, were derived from source terranes south of the Uinta basin. Secondary silica and several generations of authigenic calcite [Ca1.8-1.9(Mg0.02-0.06Fe0.02-0.06)(CO3)2], dolomite [Ca1.3-1.4(Mg0.6-0.7Fe0.02-0.04)(CO3)2], and ankerite [Ca1.2-1.3(Mg0.2-0.3Fe0.4-0.6)(CO3)2] form a replacive cement in the sandstones. Commonly, syntaxial overgrowths of late iron-bearing carbonate occur on detrital grains and preexisting relicts of iron-free carbonate cement. In sandstone where carbonate has been partly dissolved, abundant authigenic illite, partly ordered mixed- ayer illite-smectite, and small amounts of chlorite partly to completely fill secondary pores. Isotopic composition of carbonate cement and grain-supported rock range from -0.39 to -6.18 ^pmil for ^dgr13C and -7.80 to -13.98 ^pmil for ^dgr18O, indicating that authigenic carbonate formed at low temperatures in the presence of meteoric waters by a process of solution-precipitation. Enrichment of carbon and oxygen in early diagenetic calcite and fossiliferous rock relative to late diagenetic ankerite indicates a trend toward lighter isotopic carbonate compositions with increasing diagenesis.
Kerogenous rocks at Pariette Bench are thermochemically immature and therefore are not the source of oil produced in the field. Hydrocarbons are compositionally similar to some of the oils produced from the Green River Formation in the Bluebell-Altamont field and are interpreted to have migrated from mature Green River source rocks through a network of open fractures. The occurrence of small amounts of hydrocarbon in secondary pores indicates that its emplacement postdated carbonate dissolution.
","language":"English","publisher":"American Association of Petroleum Geologists","doi":"10.1306/03B5A98F-16D1-11D7-8645000102C1865D","usgsCitation":"Pitman, J.K., Fouch, T.D., and Goldhaber, M., 1982, Depositional setting and diagenetic evolution of some Tertiary unconventional reservoir rocks, Uinta Basin, Utah: American Association of Petroleum Geologists Bulletin, v. 66, no. 10, p. 1581-1596, https://doi.org/10.1306/03B5A98F-16D1-11D7-8645000102C1865D.","productDescription":"16 p.","startPage":"1581","endPage":"1596","numberOfPages":"16","costCenters":[{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true}],"links":[{"id":221598,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Utah","otherGeospatial":"Uinta Basin","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -111.0225857789739,\n 40.63348012338835\n ],\n [\n -111.0225857789739,\n 39.27696875971418\n ],\n [\n -108.75245518662385,\n 39.27696875971418\n ],\n [\n -108.75245518662385,\n 40.63348012338835\n ],\n [\n -111.0225857789739,\n 40.63348012338835\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"66","issue":"10","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059fec8e4b0c8380cd4ef16","contributors":{"authors":[{"text":"Pitman, Janet K. 0000-0002-0441-779X jpitman@usgs.gov","orcid":"https://orcid.org/0000-0002-0441-779X","contributorId":767,"corporation":false,"usgs":true,"family":"Pitman","given":"Janet","email":"jpitman@usgs.gov","middleInitial":"K.","affiliations":[{"id":164,"text":"Central Energy Resources Science Center","active":true,"usgs":true},{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":361472,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Fouch, T. D.","contributorId":68333,"corporation":false,"usgs":true,"family":"Fouch","given":"T.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":361471,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Goldhaber, M. B. 0000-0002-1785-4243","orcid":"https://orcid.org/0000-0002-1785-4243","contributorId":103280,"corporation":false,"usgs":true,"family":"Goldhaber","given":"M. B.","affiliations":[],"preferred":false,"id":361473,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70011586,"text":"70011586 - 1982 - Morphology, distribution, and development of submarine canyons on the United States Atlantic continental slope between Hudson and Baltimore Canyons","interactions":[],"lastModifiedDate":"2017-09-13T14:34:57","indexId":"70011586","displayToPublicDate":"1982-01-01T00:00:00","publicationYear":"1982","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1796,"text":"Geology","active":true,"publicationSubtype":{"id":10}},"title":"Morphology, distribution, and development of submarine canyons on the United States Atlantic continental slope between Hudson and Baltimore Canyons","docAbstract":"The distribution and morphology of submarine canyons off the eastern United States between Hudson and Baltimore Canyons have been mapped by long-range sidescan sonar. In this area canyons are numerous, and their spacing correlates with overall slope gradient; they are absent where the gradient is less than 3°, are 2 to 10 km apart where the gradient is 3° to 5°, and are 1.5 to 4 km apart where the gradient exceeds 6°. Canyons range from straight to sinuous; those having sinuous axes indent the edge of the continental shelf and appear to be older than those that head on the upper slope and have straighter axes. A difference in canyon age would suggest that canyons are initiated on the continental slope and only with greater age erode headward to indent the shelf. Shallow gullies on the middle and upper slope parts of the canyon walls suggest that submarine erosion has been a major process in a recent phase of canyon development.
","language":"English","publisher":"Geological Society of America","doi":"10.1130/0091-7613(1982)10<408:MDADOS>2.0.CO;2","issn":"00917613","usgsCitation":"Twichell, D.C., and Roberts, D.G., 1982, Morphology, distribution, and development of submarine canyons on the United States Atlantic continental slope between Hudson and Baltimore Canyons: Geology, v. 10, no. 8, p. 408-412, https://doi.org/10.1130/0091-7613(1982)10<408:MDADOS>2.0.CO;2.","productDescription":"5 p.","startPage":"408","endPage":"412","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":186,"text":"Coastal and Marine Geology Program","active":true,"usgs":true},{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":221597,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","otherGeospatial":"Baltimore Canyon, Hudson Canyon","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -74.1357421875,\n 37.55764242679524\n ],\n [\n -74.1357421875,\n 39.5633531658293\n ],\n [\n -70.7794189453125,\n 39.5633531658293\n ],\n [\n -70.7794189453125,\n 37.55764242679524\n ],\n [\n -74.1357421875,\n 37.55764242679524\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"10","issue":"8","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a5e5de4b0c8380cd709b2","contributors":{"authors":[{"text":"Twichell, David C.","contributorId":37730,"corporation":false,"usgs":true,"family":"Twichell","given":"David","email":"","middleInitial":"C.","affiliations":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":false,"id":361470,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Roberts, David G.","contributorId":39937,"corporation":false,"usgs":false,"family":"Roberts","given":"David","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":361469,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70011559,"text":"70011559 - 1982 - Stream-grade variation and riparian-forest ecology along Passage Creek, Virginia","interactions":[],"lastModifiedDate":"2023-08-31T14:38:27.28968","indexId":"70011559","displayToPublicDate":"1982-01-01T00:00:00","publicationYear":"1982","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1138,"text":"Bulletin of the Torrey Botanical Club","active":true,"publicationSubtype":{"id":10}},"title":"Stream-grade variation and riparian-forest ecology along Passage Creek, Virginia","docAbstract":"Passage Creek, in northwestern Virginia, flows on relatively nonresistant shales, then cuts through a gorge underlain by resistant sandstone In the gorge, the stream gradient steepens, the size of bed material increases, a braided channel forms, and riparian-forest composition and growth form changes relative to areas outside the gorge Effects of flooding are intensified within the gorge and revealed in the pattern and deformation of streamside vegetation Increased stream gradient within the gorge provides for high stream power and coarse sediment deposition relative to the flood plain outside the gorge. A more diverse upland forest grows on the flood plain in the gorge The riparian forest in the gorge may be an example of a nonequilibrium forest, resulting from periodic disturbance by destructive floods. Recognition of vegetation patterns resulting from such disturbances may be useful in detection of potential flooding.
","language":"English","publisher":"Torrey Botanical Society","doi":"10.2307/2996489","usgsCitation":"Hupp, C.R., 1982, Stream-grade variation and riparian-forest ecology along Passage Creek, Virginia: Bulletin of the Torrey Botanical Club, v. 109, no. 4, p. 488-499, https://doi.org/10.2307/2996489.","productDescription":"12 p.","startPage":"488","endPage":"499","numberOfPages":"12","costCenters":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"links":[{"id":221122,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Virginia","otherGeospatial":"Passage Creek","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -78.29175031724742,\n 38.9564952246742\n ],\n [\n -78.36374722152102,\n 38.9564952246742\n ],\n [\n -78.36374722152102,\n 38.903739942845306\n ],\n [\n -78.29175031724742,\n 38.903739942845306\n ],\n [\n -78.29175031724742,\n 38.9564952246742\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"109","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b9aa1e4b08c986b31ca44","contributors":{"authors":[{"text":"Hupp, Cliff R. 0000-0003-1853-9197 crhupp@usgs.gov","orcid":"https://orcid.org/0000-0003-1853-9197","contributorId":2344,"corporation":false,"usgs":true,"family":"Hupp","given":"Cliff","email":"crhupp@usgs.gov","middleInitial":"R.","affiliations":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true},{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true}],"preferred":true,"id":767306,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70011810,"text":"70011810 - 1982 - Holocene sedimentation in the shallow nearshore zone off Nauset Inlet, Cape Cod, Massachusetts","interactions":[],"lastModifiedDate":"2017-09-06T10:27:51","indexId":"70011810","displayToPublicDate":"1982-01-01T00:00:00","publicationYear":"1982","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2667,"text":"Marine Geology","active":true,"publicationSubtype":{"id":10}},"title":"Holocene sedimentation in the shallow nearshore zone off Nauset Inlet, Cape Cod, Massachusetts","docAbstract":"Present conditions and sedimentary evolution of the shallow offshore region near Nauset Inlet on Cape Cod, Massachusetts were clarified using high-resolution seismic-reflection profiles, sidescan-sonar records, surface grab samples and current meter measurements. The study area contains three provinces: (1) a nearshore province (shallower than 18 m) with a relatively steep slope (0.6°) and a cover of medium sand; (2) a northern offshore province covered with coarse sand, gravel, and boulders, interpreted to be glacial drift; and (3) a southern offshore province with a gentle seaward-dipping slope (0.3°) and a surface sediment of coarse sand. The glacial drift exposed in the northern offshore province can be traced southward under the coarse sand province. The overlying fill is comprised of either outwash sediment derived from the Pleistocene South Channel ice lobe to the east or Holocene-aged marine sediments eroded from seacliffs to the north. Latest Holocene sediment appears to be limited to the zone shoreward of 18 m where the medium sand occurs.
Near-bottom mean flows (measured over two winter months in 10 m water depth) average 6 cm sec−1 to the south. Mean flows exceeded 20 cm sec−1approx. 23% of the time. Ninety percent of the flows exceeding 20 cm sec−1were directed to the south, reflecting the dominant atmospheric forcing during these winter months. Waves had an average variance of 650 cm2 with variance exceeding 5000 cm2, 3% of the time, indicating moderate wave activity.
Present processes are actively reshaping the nearshore province, which is characterized by many east to northeast-trending shore-oblique channels that do not extend seaward of the 18-m contour. Coarse sand in the floors of these channels suggests they may be erosional features, and the presence of megaripples oriented perpendicular to the channel axes indicates active transport in these channels. Megaripple orientation and the current and wave regime of the study area support a rip-current origin for these channels.
","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Marine Geology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/0025-3227(82)90071-8","issn":"00253227","usgsCitation":"Aubrey, D., Twichell, D., and Pfirman, S., 1982, Holocene sedimentation in the shallow nearshore zone off Nauset Inlet, Cape Cod, Massachusetts: Marine Geology, v. 47, no. 3-4, p. 243-259, https://doi.org/10.1016/0025-3227(82)90071-8.","productDescription":"17 p.","startPage":"243","endPage":"259","costCenters":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":221131,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Massachussetts","otherGeospatial":"Cape Cod, Nauset Inlet","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -70.68878173828125,\n 41.693424216151314\n ],\n [\n -69.9224853515625,\n 41.693424216151314\n ],\n [\n -69.9224853515625,\n 42.10229818948117\n ],\n [\n -70.68878173828125,\n 42.10229818948117\n ],\n [\n -70.68878173828125,\n 41.693424216151314\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"47","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a31f4e4b0c8380cd5e3b3","contributors":{"authors":[{"text":"Aubrey, D.G.","contributorId":73336,"corporation":false,"usgs":true,"family":"Aubrey","given":"D.G.","email":"","affiliations":[],"preferred":false,"id":362010,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Twichell, D.C.","contributorId":84304,"corporation":false,"usgs":true,"family":"Twichell","given":"D.C.","affiliations":[],"preferred":false,"id":362011,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Pfirman, S.L.","contributorId":40281,"corporation":false,"usgs":true,"family":"Pfirman","given":"S.L.","affiliations":[],"preferred":false,"id":362009,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70011651,"text":"70011651 - 1982 - Stratigraphic reference section for Georges Bank Basin - Depositional model for New England passive margin.","interactions":[],"lastModifiedDate":"2023-01-11T15:45:15.430432","indexId":"70011651","displayToPublicDate":"1982-01-01T00:00:00","publicationYear":"1982","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":701,"text":"American Association of Petroleum Geologists Bulletin","active":true,"publicationSubtype":{"id":10}},"title":"Stratigraphic reference section for Georges Bank Basin - Depositional model for New England passive margin.","docAbstract":"A multichannel seismic reflection profile (U.S. Geological Survey line 19), calibrated with the COST G-1, COST G-2, and Shell Mohican I-100 wells, and seismic-sequence analysis shows that the chronostratigraphic and lithostratigraphic units and depositional history of the Georges Bank basin are similar to those of the Scotian basin. Carbonate rocks of the Iroquois and Abenaki Formations, as much as 16,000 ft (4,800 m) thick, dominated the eastern half of the Georges Bank basin during the Jurassic. As much as 7,500 ft (2,300 m) of the coeval terrigenous clastic deposits of the Mohican, Mohawk, and Mic Mac Formations accumulated updip (westward) in sublittoral, paralic, and nonmarine environments. Siliciclastic deposition, as much as 6,000 ft (1,800 m), dominated the entire basin throughout the Cretaceous and Cenozoic, and it was punctuated briefly by carbonate deposition during the Hauterivian and Paleogene. Tentative correlation between the Georges Bank basin sequences and those of the adjacent, deep North American basin suggests that the deep-sea facies were strongly influenced by depositional events on the shelf. Deposition in both areas has been sensitive to changes in sea level and to paleoclimatic cycles.
","language":"English","publisher":"American Association of Petroleum Geologists","doi":"10.1306/03B5A633-16D1-11D7-8645000102C1865D","usgsCitation":"Poag, C.W., 1982, Stratigraphic reference section for Georges Bank Basin - Depositional model for New England passive margin.: American Association of Petroleum Geologists Bulletin, v. 66, no. 8, p. 1021-1041, https://doi.org/10.1306/03B5A633-16D1-11D7-8645000102C1865D.","productDescription":"21 p.","startPage":"1021","endPage":"1041","numberOfPages":"21","costCenters":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":221455,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","otherGeospatial":"Atlantic Ocean, Georges Bank","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -68.20863484886625,\n 42.04918841749222\n ],\n [\n -68.20863484886625,\n 40.47051861193097\n ],\n [\n -65.81281728784933,\n 40.47051861193097\n ],\n [\n -65.81281728784933,\n 42.04918841749222\n ],\n [\n -68.20863484886625,\n 42.04918841749222\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"66","issue":"8","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b991fe4b08c986b31c26e","contributors":{"authors":[{"text":"Poag, C. Wylie 0000-0002-6240-4065 wpoag@usgs.gov","orcid":"https://orcid.org/0000-0002-6240-4065","contributorId":2565,"corporation":false,"usgs":true,"family":"Poag","given":"C.","email":"wpoag@usgs.gov","middleInitial":"Wylie","affiliations":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":361622,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70011441,"text":"70011441 - 1982 - Bank stability and channel width adjustment, East Fork River, Wyoming","interactions":[],"lastModifiedDate":"2018-02-05T13:23:12","indexId":"70011441","displayToPublicDate":"1982-01-01T00:00:00","publicationYear":"1982","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3722,"text":"Water Resources Research","onlineIssn":"1944-7973","printIssn":"0043-1397","active":true,"publicationSubtype":{"id":10}},"title":"Bank stability and channel width adjustment, East Fork River, Wyoming","docAbstract":"Frequent surveys of eight cross sections located in self-formed reaches of the East Fork River, Wyoming, during the 1974 snowmelt flood showed a close relation between channel morphology and scour and fill. Those cross sections narrower than the mean reach width filled at discharges less than bankfull and scoured at discharges greater than bankfull. Those cross sections wider than the mean reach width scoured at discharges less than bankfull and filled at discharges greater than bankfull. The accumulation and depletion of sand-sized bed material in a cross section was concentrated in the near-bank parts of the stream channel and thus significantly influenced bank stability and retreat. In those cross sections that scour at discharges greater than bankfull, the basal bank material is eroded and the banks become undercut and unstable. Conversely, in those cross sections that fill at discharges greater than bankfull, the basal bank material is covered by the accumulated sand-size material and is not eroded. Streambanks in these cross sections are moderately inclined and stable. A resurvey in the summer of 1980 of the cross sections located in straight reaches showed that those cross sections which scoured at discharges greater than bankfull had become 2–4 feet wider, whereas those cross sections which filled at discharges greater than bankfull were unchanged. Thus bank stability and to some extent the adjustment of stream channel width in the East Fork River study reach appears to be controlled by the processes of scour and fill.
","language":"English","publisher":"American Geophysical Union","doi":"10.1029/WR018i004p01184","usgsCitation":"Andrews, E., 1982, Bank stability and channel width adjustment, East Fork River, Wyoming: Water Resources Research, v. 18, no. 4, p. 1184-1192, https://doi.org/10.1029/WR018i004p01184.","productDescription":"9 p.","startPage":"1184","endPage":"1192","costCenters":[],"links":[{"id":221290,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Wyoming","otherGeospatial":"East Fork River","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -109,\n 42\n ],\n [\n -111,\n 42\n ],\n [\n -111,\n 43.5\n ],\n [\n -109,\n 43.5\n ],\n [\n -109,\n 42\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"18","issue":"4","noUsgsAuthors":false,"publicationDate":"2010-07-09","publicationStatus":"PW","scienceBaseUri":"5059efb6e4b0c8380cd4a3f5","contributors":{"authors":[{"text":"Andrews, E.D.","contributorId":13922,"corporation":false,"usgs":true,"family":"Andrews","given":"E.D.","email":"","affiliations":[],"preferred":false,"id":361102,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70169161,"text":"70169161 - 1982 - Earthquakes, November-December 1981","interactions":[],"lastModifiedDate":"2016-03-24T16:22:31","indexId":"70169161","displayToPublicDate":"1982-01-01T00:00:00","publicationYear":"1982","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1435,"text":"Earthquake Information Bulletin (USGS)","active":true,"publicationSubtype":{"id":10}},"title":"Earthquakes, November-December 1981","docAbstract":"The last 2 months of the year were somewhat active, seismically speaking, including three major earthquakes (7.0-7.9) during the month of December. The first of the major quakes was in the Aegean Sea on December 19, and the other two were in the South Pacific in the Kermadee Islands on December 24 and 26.
\nEarthquake fatalities were experienced in Pakistan on December 12, and consdierable damage was reported in the eastern Caucasus.
\nIn the United States, a number of earthquakes were experienced, but no significant damage occurred.
","language":"English","publisher":"U.S Geological Survey","usgsCitation":"Person, W., 1982, Earthquakes, November-December 1981: Earthquake Information Bulletin (USGS), v. 14, no. 3, p. 115-118.","productDescription":"4 p.","startPage":"115","endPage":"118","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":319229,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"14","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"56f3be36e4b0f59b85e02e00","contributors":{"authors":[{"text":"Person, W. J.","contributorId":91472,"corporation":false,"usgs":true,"family":"Person","given":"W. J.","affiliations":[],"preferred":false,"id":623270,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70197495,"text":"70197495 - 1982 - Post 12 m.y. rotation of southwest Washington","interactions":[],"lastModifiedDate":"2018-06-07T15:22:00","indexId":"70197495","displayToPublicDate":"1982-01-01T00:00:00","publicationYear":"1982","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2314,"text":"Journal of Geophysical Research B: Solid Earth","active":true,"publicationSubtype":{"id":10}},"title":"Post 12 m.y. rotation of southwest Washington","docAbstract":"Paleomagnetic field directions from the basalt of Pack Sack Lookout are compared to those from the Pomona Member of the Saddle Mountains Basalt of the Columbia River Basalt Group. The Pomona crops out over a wide region on the Columbia Plateau east of the Cascade Range, and the basalt of Pack Sack Lookout crops out well to the west of the Cascades about 30 to 60 km east of the Washington coast. Our paleomagnetic results support existing geologic and geochemical evidence that both these units are part of a single 12‐m.y.‐old flow that erupted in western Idaho and flowed to the Washington coast. The magnetic data further indicate that southwest Washington has undergone clockwise rotation with respect to the Columbia Plateau and stable North America. The data suggest that both a large‐scale regional rotation of ∼16° and locally complex small‐scale rotations exist, the two being present to different degrees in the eastern and western regions of southwest Washington. The Cascade Range appears to coincide with the tectonic boundary, separating rotated and unrotated regions of Washington state. Rotation of southwest Washington appears to have been associated with the rotation of large pieces of western Oregon and southern Washington, possibly as a result of either a ridge‐push force from the Basin and Range province or shear along the Pacific‐North America plate boundary.
","language":"English","publisher":"AGU","doi":"10.1029/JB087iB05p03761","usgsCitation":"Magill, J.R., Wells, R., Simpson, R.W., and Cox, A., 1982, Post 12 m.y. rotation of southwest Washington: Journal of Geophysical Research B: Solid Earth, v. 87, no. B5, p. 3761-3776, https://doi.org/10.1029/JB087iB05p03761.","productDescription":"16 p.","startPage":"3761","endPage":"3776","costCenters":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"links":[{"id":354827,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Washington","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -124.23339843749999,\n 46.06560846138691\n ],\n [\n -122.90954589843749,\n 46.06560846138691\n ],\n [\n -122.90954589843749,\n 46.856434763486966\n ],\n [\n -124.23339843749999,\n 46.856434763486966\n ],\n [\n -124.23339843749999,\n 46.06560846138691\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"87","issue":"B5","noUsgsAuthors":false,"publicationDate":"2012-09-20","publicationStatus":"PW","contributors":{"authors":[{"text":"Magill, James R.","contributorId":205481,"corporation":false,"usgs":false,"family":"Magill","given":"James","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":737455,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wells, Ray E. 0000-0002-7796-0160 rwells@usgs.gov","orcid":"https://orcid.org/0000-0002-7796-0160","contributorId":2692,"corporation":false,"usgs":true,"family":"Wells","given":"Ray E.","email":"rwells@usgs.gov","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":false,"id":737456,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Simpson, Robert W. simpson@usgs.gov","contributorId":1053,"corporation":false,"usgs":true,"family":"Simpson","given":"Robert","email":"simpson@usgs.gov","middleInitial":"W.","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":737457,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Cox, Allan","contributorId":89949,"corporation":false,"usgs":true,"family":"Cox","given":"Allan","email":"","affiliations":[],"preferred":false,"id":737458,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70185628,"text":"70185628 - 1982 - Acid rain, air pollution, and tree growth in southeastern New York","interactions":[],"lastModifiedDate":"2020-01-26T09:55:04","indexId":"70185628","displayToPublicDate":"1982-01-01T00:00:00","publicationYear":"1982","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2262,"text":"Journal of Environmental Quality","active":true,"publicationSubtype":{"id":10}},"title":"Acid rain, air pollution, and tree growth in southeastern New York","docAbstract":"Whether dendroecological analyses could be used to detect changes in the relationship of tree growth to climate that might have resulted from chronic exposure to components of the acid rain-air pollution complex was determined. Tree-ring indices of white pine (Pinus strobus L.), eastern hemlock (Tsuga canadensis (L.) Cart.), pitch pine (Pinus rigida Mill.), and chestnut oak (Quercus prinus L.) were regressed against orthogonally transformed values of temperature and precipitation in order to derive a response-function relationship. Results of the regression analyses for three time periods, 1901–1920, 1926–1945, and 1954–1973 suggest that the relationship of tree growth to climate has been altered. Statistical tests of the temperature and precipitation data suggest that this change was nonclimatic. Temporally, the shift in growth response appears to correspond with the suspected increase in acid rain and air pollution in the Shawangunk Mountain area of southeastern New York in the early 1950's. This change could be the result of physiological stress induced by components of the acid rain-air pollution complex, causing climatic conditions to be more limiting to tree growth.
","language":"English","publisher":"Alliance of Crop, Soil, and Environmental Science Societies ","doi":"10.2134/jeq1982.00472425001100030011x","usgsCitation":"Puckett, L., 1982, Acid rain, air pollution, and tree growth in southeastern New York: Journal of Environmental Quality, v. 11, no. 3, p. 376-381, https://doi.org/10.2134/jeq1982.00472425001100030011x.","productDescription":"6 p.","startPage":"376","endPage":"381","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":338329,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"New York","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -73.19091796875,\n 43.34116005412307\n ],\n [\n -73.32275390625,\n 43.628123412124616\n ],\n [\n -77.431640625,\n 42.06560675405716\n ],\n [\n -75.3662109375,\n 41.95131994679697\n ],\n [\n -74.99267578125,\n 41.57436130598913\n ],\n [\n -73.828125,\n 40.96330795307353\n ],\n [\n -73.47656249999999,\n 41.32732632036622\n ],\n [\n -73.19091796875,\n 43.34116005412307\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"11","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58d63042e4b05ec799131127","contributors":{"authors":[{"text":"Puckett, L.J.","contributorId":27503,"corporation":false,"usgs":true,"family":"Puckett","given":"L.J.","email":"","affiliations":[],"preferred":false,"id":686156,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70169269,"text":"70169269 - 1982 - Volcanic hazard alert issued for the Long Valley-Mono Lake area of California","interactions":[],"lastModifiedDate":"2016-04-07T15:58:46","indexId":"70169269","displayToPublicDate":"1982-01-01T00:00:00","publicationYear":"1982","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1435,"text":"Earthquake Information Bulletin (USGS)","active":true,"publicationSubtype":{"id":10}},"title":"Volcanic hazard alert issued for the Long Valley-Mono Lake area of California","docAbstract":"The ski resort of Mammoth Lakes, nestled against the east front of the Sierra Nevada just east of Yosemite National Park, knows about natural hazards. It is still being shaken by an unusual sequence of earthquakes that started in 1978 and included four earthquakes of magnitude 6 within 48 hours of each other in May 1980. An earthquake hazard watch is still in effect.
","language":"English","publisher":"U.S Geological Survey","usgsCitation":"Kerr, R.A., 1982, Volcanic hazard alert issued for the Long Valley-Mono Lake area of California: Earthquake Information Bulletin (USGS), v. 14, no. 3, p. 84-93.","productDescription":"10 p.","startPage":"84","endPage":"93","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":319250,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"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 -119.1412353515625,\n 38.39764411353181\n ],\n [\n -119.31427001953125,\n 38.25974980039479\n ],\n [\n -119.014892578125,\n 37.74031329210266\n ],\n [\n -118.79241943359374,\n 37.590295170521955\n ],\n [\n -118.6083984375,\n 37.38761749978395\n ],\n [\n -118.40240478515624,\n 37.86618078529668\n ],\n [\n -119.1412353515625,\n 38.39764411353181\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"14","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"56f3be56e4b0f59b85e02f62","contributors":{"authors":[{"text":"Kerr, R. A.","contributorId":152674,"corporation":false,"usgs":false,"family":"Kerr","given":"R.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":623419,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":10524,"text":"ofr82674 - 1982 - Sedimentology and stratigraphy of the Kanayut Conglomerate, central and western Brooks Range, Alaska: Report of 1981 field season","interactions":[],"lastModifiedDate":"2022-12-14T20:40:31.129842","indexId":"ofr82674","displayToPublicDate":"1982-01-01T00:00:00","publicationYear":"1982","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":"82-674","title":"Sedimentology and stratigraphy of the Kanayut Conglomerate, central and western Brooks Range, Alaska: Report of 1981 field season","docAbstract":"The Upper Devonian and Lower Mississippian(?) Kanayut Conglomerate forms a major stratigraphic unit along the crest of the Brooks Range of northern Alaska. It crops out for an east-west distance of about 900 km and a north-south distance of about 65 km. The Kanayut is wholly allochthonous and has probably been transported northward on a series of thrust plates. \r\n\r\nThe Kanayut is as thick as 2,600 m in the east-central Brooks Range. It thins and fines to the south and west. The Kanayut forms the middle part of the allochthonous sequence of the Endicott Group, an Upper Devonian and Mississippian clastic sequence underlain by platform limestones of the Baird Group and overlain by platform limestone, carbonaceous shale, and black chert of the Lisburne Group. The Kanayut overlies the marine Upper Devonian Noatak Sandstone or, where it is missing, the marine Upper Devonian Hunt Fork Shale. It is overlain by the marine Mississippian Kayak Shale. The Kanayut Conglomerate forms the fluvial part of a large, coarse-grained delta that prograded to the southwest in Late Devonian time and retreated in Early Mississippian time. \r\n\r\nFour sections of the Kanayut Conglomerate in the central Brooks Range and five in the western Brooks Range were measured in 1981. The sections from the western Brooks Range document the presence of fluvial cycles in the Kanayut as far west as the shores of the Chukchi Sea. The Kanayut in this area is generally finer grained than it is in the central and eastern Brooks Range, having a maximum clast size of 3 cm. It is probably about 300 m thick. The upper and lower contacts of the Kanayut are gradational. The lower Kanayut contains calcareous, marine-influenced sandstone within channel deposits, and the upper Kanayut contains probable marine interdistributary-bay shale sequences. The members of the Kanayut Conglomerate cannot be differentiated in this region. \r\n\r\nIn the central Brooks Range, sections of the Kanayut Conglomerate at Siavlat Mountain and Kakivilak Creek are typically organized into fining-upward fluvial cycles. The maximum clast size is about 3 cm in this area. The Kanayut in this region is 200-500 m thick and can be divided into the Ear Peak, Shainin Lake, and Stuver Members. The upper contact of the Kanayut with the Kayak Shale is very gradational at Kakivilak Creek and very abrupt at Siavlat Mountain. \r\n\r\nPaleocurrents from fluvial strata of the Kanayut indicate sediment transport toward the west and south in both the western and central Brooks Range. The maximum clast size distribution generally indicates westward fining from the Shainin Lake region.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr82674","usgsCitation":"Nilsen, T.H., and Moore, T., 1982, Sedimentology and stratigraphy of the Kanayut Conglomerate, central and western Brooks Range, Alaska: Report of 1981 field season: U.S. Geological Survey Open-File Report 82-674, iii, 64 p., https://doi.org/10.3133/ofr82674.","productDescription":"iii, 64 p.","costCenters":[],"links":[{"id":410492,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_75645.htm","linkFileType":{"id":5,"text":"html"}},{"id":38371,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1982/0674/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":144269,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1982/0674/report-thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"central and western Brooks Range","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -142,\n 67.3333\n ],\n [\n -163.5,\n 67.3333\n ],\n [\n -163.5,\n 68.75\n ],\n [\n -142,\n 68.75\n ],\n [\n -142,\n 67.3333\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49e2e4b07f02db5e4d4d","contributors":{"authors":[{"text":"Nilsen, T. H.","contributorId":93057,"corporation":false,"usgs":true,"family":"Nilsen","given":"T.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":161540,"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":161539,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":8672,"text":"ofr82893 - 1982 - Tilt measurements at Long Valley caldera, California, May-August 1982","interactions":[],"lastModifiedDate":"2023-03-17T20:35:01.955162","indexId":"ofr82893","displayToPublicDate":"1982-01-01T00:00:00","publicationYear":"1982","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":"82-893","title":"Tilt measurements at Long Valley caldera, California, May-August 1982","docAbstract":"The Mammoth Lakes area in east-central California has experienced unusual seismicity and ground deformation since 1978, highlighted by four M>6 earthquakes in May 1980 and by the discovery soon thereafter of a broad uplift within Long Valley caldera. Recurrent seismic swarms during June 1980-May 1982 raised concern over the possibility of renewed volcanic activity in the foreseeable future, prompting a USGS Notice of Potential Volcanic Hazard on 28 May 1982. As part of an intensified Long Valley monitoring effort sponsored by the USGS Volcanic Hazards Program, a network of nine tilt sites was established near Mammoth Lakes in May and July 1982. This report describes those stations and presents results from three tilt resurveys during July-August 1982.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr82893","usgsCitation":"Dzurisin, D., Cashman, K.V., Johnston, D.A., and Sylvester, A.G., 1982, Tilt measurements at Long Valley caldera, California, May-August 1982: U.S. Geological Survey Open-File Report 82-893, 34 p., https://doi.org/10.3133/ofr82893.","productDescription":"34 p.","costCenters":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":414351,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_13850.htm","linkFileType":{"id":5,"text":"html"}},{"id":36267,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1982/0893/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":142843,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1982/0893/report-thumb.jpg"}],"country":"United States","state":"California","otherGeospatial":"Long Valley caldera","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -118.833,\n 37.733\n ],\n [\n -118.95,\n 37.733\n ],\n [\n -118.95,\n 37.617\n ],\n [\n -118.833,\n 37.617\n ],\n [\n -118.833,\n 37.733\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a53e4b07f02db62b753","contributors":{"authors":[{"text":"Dzurisin, Daniel 0000-0002-0138-5067 dzurisin@usgs.gov","orcid":"https://orcid.org/0000-0002-0138-5067","contributorId":538,"corporation":false,"usgs":true,"family":"Dzurisin","given":"Daniel","email":"dzurisin@usgs.gov","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":158128,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Cashman, K. V.","contributorId":16831,"corporation":false,"usgs":true,"family":"Cashman","given":"K.","email":"","middleInitial":"V.","affiliations":[],"preferred":false,"id":158129,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Johnston, D. A.","contributorId":18109,"corporation":false,"usgs":true,"family":"Johnston","given":"D.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":158130,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Sylvester, Arthur G.","contributorId":23953,"corporation":false,"usgs":true,"family":"Sylvester","given":"Arthur","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":158131,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":1001580,"text":"1001580 - 1982 - Nocturnal activity and foraging of prairie raccoons (Procyon lotor) in North Dakota","interactions":[],"lastModifiedDate":"2023-02-15T16:08:23.583256","indexId":"1001580","displayToPublicDate":"1982-01-01T00:00:00","publicationYear":"1982","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":737,"text":"American Midland Naturalist","active":true,"publicationSubtype":{"id":10}},"displayTitle":"Nocturnal activity and foraging of prairie raccoons (Procyon lotor) in North Dakota","title":"Nocturnal activity and foraging of prairie raccoons (Procyon lotor) in North Dakota","docAbstract":"Nocturnal activity and foraging of 39 radio-equipped raccoons (Procyon lotor) in eastern North Dakota were studied from April-July in 1974-1976. Sixteen of the raccoons were collected after foraging bouts for stomach content analysis. Raccoon activity consisted of running (13%), walking (49%) and local movement in confined areas (38%). Local movement was foraging on large or locally abundant food items. Adult males traveled farther in a night, ran twice as often, and moved locally only half as often as adult females and yearlings. Differences in activity patterns between adult females and yearlings were not detected. There was no difference among age-sex groups in use of foraging habitats. All raccoons foraged extensively in farmyards and wetlands. Stomach content analysis substantiated foraging determinations obtained by radiotelemetry. Principal foods were grain, aquatic animals, rodents, birds and bird eggs.
","language":"English","publisher":"University of Notre Dame","doi":"10.2307/2425374","usgsCitation":"Greenwood, R.J., 1982, Nocturnal activity and foraging of prairie raccoons (Procyon lotor) in North Dakota: American Midland Naturalist, v. 107, no. 2, p. 238-243, https://doi.org/10.2307/2425374.","productDescription":"6 p.","startPage":"238","endPage":"243","costCenters":[{"id":480,"text":"Northern Prairie Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":133841,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"North 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