{"pageNumber":"4151","pageRowStart":"103750","pageSize":"25","recordCount":184914,"records":[{"id":1014910,"text":"1014910 - 1993 - Methods for nonlethal gill biopsy and measurement of Na+, K+ and -ATPase activity","interactions":[],"lastModifiedDate":"2012-02-02T00:04:27","indexId":"1014910","displayToPublicDate":"1993-01-01T00:00:00","publicationYear":"1993","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1169,"text":"Canadian Journal of Fisheries and Aquatic Sciences","active":true,"publicationSubtype":{"id":10}},"title":"Methods for nonlethal gill biopsy and measurement of Na+, K+ and -ATPase activity","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Canadian Journal of Fisheries and Aquatic Sciences","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","collaboration":"94-124/TF","usgsCitation":"McCormick, S., 1993, Methods for nonlethal gill biopsy and measurement of Na+, K+ and -ATPase activity: Canadian Journal of Fisheries and Aquatic Sciences, v. 50, no. 3, p. 656-658.","productDescription":"p. 656-658","startPage":"656","endPage":"658","numberOfPages":"3","costCenters":[{"id":365,"text":"Leetown Science Center","active":true,"usgs":true}],"links":[{"id":132110,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"50","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a53e4b07f02db62b9e4","contributors":{"authors":[{"text":"McCormick, S. D. 0000-0003-0621-6200","orcid":"https://orcid.org/0000-0003-0621-6200","contributorId":20278,"corporation":false,"usgs":true,"family":"McCormick","given":"S. D.","affiliations":[{"id":365,"text":"Leetown Science Center","active":true,"usgs":true}],"preferred":false,"id":321513,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70017419,"text":"70017419 - 1993 - Mesozoic stratigraphy and paleoenvironments of the Georges Bank Basin: A correlation of exploratory and cost wells","interactions":[],"lastModifiedDate":"2018-02-23T12:11:34","indexId":"70017419","displayToPublicDate":"1993-01-01T00:00:00","publicationYear":"1993","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":"Mesozoic stratigraphy and paleoenvironments of the Georges Bank Basin: A correlation of exploratory and cost wells","docAbstract":"The Exxon 975-1, Conoco 145-1, and Mobil 312-1 hydrocarbon exploratory wells and the Continental Offshore Stratigraphic Test (COST) G-1 and G-2 wells were drilled in the southeastern part of the Georges Bank Basin. We used drill cuttings and logs from these wells to describe and correlate the dominant lithostratigraphic units and to document lateral changes in the depositional environments. The strata penetrated by the Exxon 975-1 and COST G-1 wells are much more terrestrial than at the seaward (downdip) COST G-2, Conoco 145-1, and Mobil 312-1 wellsites. Oldest rocks penetrated by the exploratory wells represent a Middle Jurassic carbonate-evaporite sequence that correlates to the Iroquois Formation. The Iroquois records nonmarine to marginal-marine sabkha, tidal-flat, and restricted lagoonal paleoenvironments in the Exxon 975-1 and COST G-1 wells, but progressively changes to inner neritic, littoral, and lagoonal paleoenvironments at the Mobil 312-1 wellsite. The nonmarine deltaic siliciclastics of the overlying Mohican Formation, Misaine Shale, and Mic Mac-Mohawk Formations are thicker and the marine carbonates of the Scatarie and Bacarro Limestones are usually thinner in the Jurassic strata of the Exxon 975-1 and COST G-1 wells than at the other wellsites. Similarly, lower delta-plain and delta-front facies of the Early Cretaceous Missisuaga and Logan Canyon Formations at the Exxon 975-1 and COST G-1 wellsites reflect a greater terrestrial influence than the laterally-equivalent shallow marine to delta-front facies present at the downdip wellsites. ?? 1993.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Marine Geology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/0025-3227(93)90015-N","usgsCitation":"Poppe, L., and Poag, C.W., 1993, Mesozoic stratigraphy and paleoenvironments of the Georges Bank Basin: A correlation of exploratory and cost wells: Marine Geology, v. 113, no. 3-4, p. 147-162, https://doi.org/10.1016/0025-3227(93)90015-N.","productDescription":"16 p.","startPage":"147","endPage":"162","costCenters":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":228604,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","otherGeospatial":"Georges Bank Basin","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -74.267578125,\n              39.774769485295465\n            ],\n            [\n              -61.3037109375,\n              39.774769485295465\n            ],\n            [\n              -61.3037109375,\n              46.89023157359399\n            ],\n            [\n              -74.267578125,\n              46.89023157359399\n            ],\n            [\n              -74.267578125,\n              39.774769485295465\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"113","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a5458e4b0c8380cd6cf5f","contributors":{"authors":[{"text":"Poppe, L.J.","contributorId":72782,"corporation":false,"usgs":true,"family":"Poppe","given":"L.J.","affiliations":[],"preferred":false,"id":376386,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Poag, C. W.","contributorId":16402,"corporation":false,"usgs":true,"family":"Poag","given":"C.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":376385,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70017956,"text":"70017956 - 1993 - Deposition of the late Wisconsin Johnstown moraine, south-central Wisconsin","interactions":[],"lastModifiedDate":"2013-03-25T16:29:52","indexId":"70017956","displayToPublicDate":"1993-01-01T00:00:00","publicationYear":"1993","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3217,"text":"Quaternary International","active":true,"publicationSubtype":{"id":10}},"title":"Deposition of the late Wisconsin Johnstown moraine, south-central Wisconsin","docAbstract":"The Johnstown moraine is made up of three different materials. The lower part of the sequence consists of closely spaced bodies of boulder gravel, which are cylindrical and plunge upglacier several degrees. They are interpreted to be esker bodies. They grade distally into proglacial outwash fans. The esker bodies are overlain by sandy till, some of which is uniform and some of which has colour layers. The colour layers are a few millimetres to a metre thick, drape over the eskers and dip upglacier several degrees. Both the uniform and layered till have pebbles plunging upglacier several degrees steeper than the dip of the layers. Both the uniform and layered till are interpreted to have been deposited subglacially, probably both by melting out and by lodgement. The till is overlain by a thin layer of boulder gravel interpreted to be washed supraglacial sediment. ?? 1993.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Quaternary International","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elsevier","doi":"10.1016/1040-6182(93)90053-I","issn":"10406182","usgsCitation":"Lundqvist, J., Clayton, L., and Mickelson, D., 1993, Deposition of the late Wisconsin Johnstown moraine, south-central Wisconsin: Quaternary International, v. 18, no. C, p. 53-59, https://doi.org/10.1016/1040-6182(93)90053-I.","startPage":"53","endPage":"59","numberOfPages":"7","costCenters":[],"links":[{"id":229050,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":270040,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/1040-6182(93)90053-I"}],"volume":"18","issue":"C","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059feb8e4b0c8380cd4eeb7","contributors":{"authors":[{"text":"Lundqvist, J.","contributorId":24509,"corporation":false,"usgs":true,"family":"Lundqvist","given":"J.","email":"","affiliations":[],"preferred":false,"id":378029,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Clayton, L.","contributorId":55145,"corporation":false,"usgs":true,"family":"Clayton","given":"L.","email":"","affiliations":[],"preferred":false,"id":378030,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Mickelson, D.M.","contributorId":102147,"corporation":false,"usgs":true,"family":"Mickelson","given":"D.M.","email":"","affiliations":[],"preferred":false,"id":378031,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70017418,"text":"70017418 - 1993 - Neogene folding and faulting in southern Monterey Bay, Central California, USA","interactions":[],"lastModifiedDate":"2024-09-19T11:29:28.592825","indexId":"70017418","displayToPublicDate":"1993-01-01T00:00:00","publicationYear":"1993","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":"Neogene folding and faulting in southern Monterey Bay, Central California, USA","docAbstract":"<div id=\"preview-section-abstract\"><div id=\"abstracts\" class=\"Abstracts u-font-serif\"><div id=\"aep-abstract-id4\" class=\"abstract author\"><div id=\"aep-abstract-sec-id5\"><p>The goal of this study was to determine the Neogene structural history of southern Monterey Bay by mapping and correlating the shallow tectonic structures with previously identified deeper occurring structures. Side scan sonographs and Uniboom seismic reflection profiles collected in the region suggest that deformation associated with both compressional and transcurrent movement is occurring.</p><p>Strike-slip movement between the North American and Pacific plates started as subduction ceased 21 Ma, creating the San Andreas fault system. Clockwise rotation of the Pacific plate occurred between 3.4 and 3.9 Ma causing orthogonal convergence between the two plates. This plate rotation is responsible for compressional Neogene structures along the central California coast. Structures exhibit transpressional tectonic characteristics such as thrust faulting, reverse faulting and asymmetrical folding. Folding and faulting are confined to middle Miocene and younger strata. Shallow Mesozoic granitic basement rocks either crop out or lie near the surface in most of the region and form a possible décollement along which the Miocene Monterey Formation has decoupled and been folded. Over 50% of the shallow faults strike normal (NE-SW) to the previously identified faults. Wrench fault tectonics complicated by compression, gradual uplift of the basement rocks, and a change in plate convergence direction are responsible for the observed structures in southern Monterey Bay.</p></div></div></div></div><div id=\"preview-section-introduction\"><br></div>","language":"English","publisher":"Elsevier","doi":"10.1016/0025-3227(93)90016-O","issn":"00253227","usgsCitation":"Gardner-Taggart, J.M., Greene, H., and Ledbetter, M., 1993, Neogene folding and faulting in southern Monterey Bay, Central California, USA: Marine Geology, v. 113, no. 3-4, p. 163-177, https://doi.org/10.1016/0025-3227(93)90016-O.","productDescription":"15 p.","startPage":"163","endPage":"177","numberOfPages":"15","costCenters":[],"links":[{"id":228555,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"113","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a6449e4b0c8380cd72972","contributors":{"authors":[{"text":"Gardner-Taggart, J. M.","contributorId":83686,"corporation":false,"usgs":true,"family":"Gardner-Taggart","given":"J.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":376383,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Greene, H. Gary","contributorId":38958,"corporation":false,"usgs":true,"family":"Greene","given":"H. Gary","affiliations":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":false,"id":376382,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Ledbetter, M.T.","contributorId":88508,"corporation":false,"usgs":true,"family":"Ledbetter","given":"M.T.","email":"","affiliations":[],"preferred":false,"id":376384,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70017453,"text":"70017453 - 1993 - Interface dissolution control of the 14C profile in marine sediment","interactions":[],"lastModifiedDate":"2024-03-01T17:41:22.964314","indexId":"70017453","displayToPublicDate":"1993-01-01T00:00:00","publicationYear":"1993","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1759,"text":"Geochimica et Cosmochimica Acta","active":true,"publicationSubtype":{"id":10}},"displayTitle":"Interface dissolution control of the <sup>14</sup>C profile in marine sediment","title":"Interface dissolution control of the 14C profile in marine sediment","docAbstract":"<p><span>The process of carbonate dissolution at the sediment-water interface has two possible endmember boundary conditions. Either the carbonate particles dissolve mostly before they are incorporated into the sediment by bioturbation (interface dissolution), or the vertical mixing is rapid relative to their extermination rate (homogeneous dissolution). In this study, a detailed radiocarbon profile was determined in deep equatorial Pacific sediment that receives a high rate of carbonate supply. In addition, a box model of sediment mixing was used to simulate radiocarbon, carbonate content and excess thorium profiles that result from either boundary process following a dissolution increase. Results from homogeneous dissolution imply a strong, very recent erosional event, while interface dissolution suggests that moderately increased dissolution began about 10,000 years ago. In order to achieve the observed mixed layer radiocarbon age, increased homogeneous dissolution would concentrate a greater amount of clay and&nbsp;</span><sup>230</sup><span>Th than is observed, while for interface dissolution the predicted concentrations are too small. These results together with small discontinuities beneath the mixed layer in&nbsp;</span><sup>230</sup><span>Th profiles suggest a two-stage increase in interface dissolution in the deep Pacific, the first occurring near the beginning of the Holocene and the second more recently, roughly 5000 years ago.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/0016-7037(93)90139-N","issn":"00167037","usgsCitation":"Keir, R., and Michel, R.L., 1993, Interface dissolution control of the 14C profile in marine sediment: Geochimica et Cosmochimica Acta, v. 57, no. 15, p. 3563-3573, https://doi.org/10.1016/0016-7037(93)90139-N.","productDescription":"11 p.","startPage":"3563","endPage":"3573","numberOfPages":"11","costCenters":[],"links":[{"id":228420,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"57","issue":"15","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a3cf8e4b0c8380cd631c2","contributors":{"authors":[{"text":"Keir, R.S.","contributorId":28025,"corporation":false,"usgs":true,"family":"Keir","given":"R.S.","email":"","affiliations":[],"preferred":false,"id":376517,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Michel, R. L.","contributorId":86375,"corporation":false,"usgs":true,"family":"Michel","given":"R.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":376518,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70017415,"text":"70017415 - 1993 - Heavy metal anomalies in the Tinto and Odiel River and estuary system, Spain","interactions":[],"lastModifiedDate":"2020-09-02T18:54:40.955161","indexId":"70017415","displayToPublicDate":"1993-01-01T00:00:00","publicationYear":"1993","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1583,"text":"Estuaries","active":true,"publicationSubtype":{"id":10}},"title":"Heavy metal anomalies in the Tinto and Odiel River and estuary system, Spain","docAbstract":"The Tinto and Odiel rivers drain 100 km from the Rio Tinto sulphide mining district, and join at a 20-km long estuary entering the Atlantic Ocean. A reconnaissance study of heavy metal anomalies in channel sand and overbank mud of the river and estuary by semi-quantitative emission dc-arc spectrographic analysis shows the following upstream to downstream ranges in ppm (??g g-1): As 3,000 to <200, Cd 30 to <0.1, Cu 1,500 to 10, Pb 2,000 to <10, Sb 3000 to <150, and Zn 3,000 to <200. Organic-rich (1.3-2.6% total organic carbon, TOC), sandysilty overbank clay has been analyzed to represent suspended load materials. The high content of heavy metals in the overbank clay throughout the river and estuary systems indicates the importance of suspended sediment transport for dispersing heavy metals from natural erosion and anthropogenic mining activities of the sulfide deposit. The organic-poor (0.21-0.37% TOC) river bed sand has been analyzed to represent bedload transport of naturally-occurring sulfide minerals. The sand has high concentrations of metals upstream but these decrease an order of magnitude in the lower estuary. Although heavy metal contamination of estuary mouth beach sand has been diluted to background levels estuary mud exhibits increased contamination apparently related to finer grain size, higher organic carbon content, precipitation of river-borne dissolved solids, and input of anthropogenic heavy metals from industrial sources. The contaminated estuary mud disperses to the inner shelf mud belt and offshore suspended sediment, which exhibit metal anomalies from natural erosion and mining of upstream Rio Tinto sulphide lode sources (Pb, Cu, Zn) and industrial activities within the estuary (Fe, Cr, Ti). Because heavy metal contamination of Tinto-Odiel river sediment reaches or exceeds the highest levels encountered in other river sediments of Spain and Europe, a detailed analysis of metals in water and suspended sediment throughout the system, and epidemiological analysis of heavy metal effects in humans is appropriate. ?? 1993 Estuarine Research Federation.","language":"English","publisher":"Springer-Verlag","doi":"10.2307/1352597","issn":"15592723","usgsCitation":"Nelson, C., and Lamothe, P.J., 1993, Heavy metal anomalies in the Tinto and Odiel River and estuary system, Spain: Estuaries, v. 16, no. 3, p. 496-511, https://doi.org/10.2307/1352597.","startPage":"496","endPage":"511","numberOfPages":"16","costCenters":[],"links":[{"id":228508,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"16","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a300de4b0c8380cd5d32d","contributors":{"authors":[{"text":"Nelson, C.H.","contributorId":88346,"corporation":false,"usgs":true,"family":"Nelson","given":"C.H.","email":"","affiliations":[],"preferred":false,"id":376376,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lamothe, P. J.","contributorId":45672,"corporation":false,"usgs":true,"family":"Lamothe","given":"P.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":376375,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70017495,"text":"70017495 - 1993 - Evaluation of the energy budget method of determining evaporation at Williams Lake, Minnesota, using alternative instrumentation and study approaches","interactions":[],"lastModifiedDate":"2018-03-06T14:25:03","indexId":"70017495","displayToPublicDate":"1993-01-01T00:00:00","publicationYear":"1993","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":"Evaluation of the energy budget method of determining evaporation at Williams Lake, Minnesota, using alternative instrumentation and study approaches","docAbstract":"<p><span>Best estimates of evaporation at Williams Lake, north central Minnesota, were determined by the energy budget method using optimum sensors and optimum placement of sensors. These best estimates are compared with estimates derived from using substitute data to determine the effect of using less accurate sensors, simpler methods, or remotely measured data. Calculations were made for approximately biweekly periods during five open water seasons. For most of the data substitutions that affected the Bowen ratio, new values of evaporation differed little from best estimates. The three data substitution methods that caused the largest deviations from the best evaporation estimates were (1) using changes in the daily average surface water temperature as an indicator of the lake heat storage term, (2) using shortwave radiation, air temperature, and atmospheric vapor pressure data from a site 110 km away, and (3) using an analog surface water temperature probe. Recalculations based on these data substitutions resulted in differences from the best estimates as much as 89%, 21%, and 10%, respectively. The data substitution method that provided evaporation values that most closely matched the best estimates was measurement of the lake heat storage term at one location in the lake, rather than at 16 locations. Evaporation values resulting from this substitution method usually were within 2% of the best estimates.</span></p>","language":"English","publisher":"American Geophysical Union","doi":"10.1029/93WR00743","usgsCitation":"Rosenberry, D., Sturrock, A., and Winter, T.C., 1993, Evaluation of the energy budget method of determining evaporation at Williams Lake, Minnesota, using alternative instrumentation and study approaches: Water Resources Research, v. 29, no. 8, p. 2473-2483, https://doi.org/10.1029/93WR00743.","productDescription":"11 p.","startPage":"2473","endPage":"2483","costCenters":[],"links":[{"id":228325,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Minnesota","otherGeospatial":"Williams Lake","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -94.6766996383667,\n              46.94873885817681\n            ],\n            [\n              -94.66219425201415,\n              46.94873885817681\n            ],\n            [\n              -94.66219425201415,\n              46.9591673117941\n            ],\n            [\n              -94.6766996383667,\n              46.9591673117941\n            ],\n            [\n              -94.6766996383667,\n              46.94873885817681\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"29","issue":"8","noUsgsAuthors":false,"publicationDate":"2010-07-09","publicationStatus":"PW","scienceBaseUri":"505a0ce2e4b0c8380cd52d2d","contributors":{"authors":[{"text":"Rosenberry, D.O. 0000-0003-0681-5641","orcid":"https://orcid.org/0000-0003-0681-5641","contributorId":38500,"corporation":false,"usgs":true,"family":"Rosenberry","given":"D.O.","affiliations":[],"preferred":true,"id":376654,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Sturrock, A.M.","contributorId":25947,"corporation":false,"usgs":true,"family":"Sturrock","given":"A.M.","affiliations":[],"preferred":false,"id":376653,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Winter, T. C.","contributorId":23485,"corporation":false,"usgs":true,"family":"Winter","given":"T.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":376652,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70017438,"text":"70017438 - 1993 - Development of the 1990 Kalapana Flow Field, Kilauea Volcano, Hawaii","interactions":[],"lastModifiedDate":"2012-03-12T17:19:57","indexId":"70017438","displayToPublicDate":"1993-01-01T00:00:00","publicationYear":"1993","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1109,"text":"Bulletin of Volcanology","active":true,"publicationSubtype":{"id":10}},"title":"Development of the 1990 Kalapana Flow Field, Kilauea Volcano, Hawaii","docAbstract":"The 1990 Kalapana flow field is a complex patchwork of tube-fed pahoehoe flows erupted from the Kupaianaha vent at a low effusion rate (approximately 3.5 m3/s). These flows accumulated over an 11-month period on the coastal plain of Kilauea Volcano, where the pre-eruption slope angle was less than 2??. the composite field thickened by the addition of new flows to its surface, as well as by inflation of these flows and flows emplaced earlier. Two major flow types were identified during the development of the flow field: large primary flows and smaller breakouts that extruded from inflated primary flows. Primary flows advanced more quickly and covered new land at a much higher rate than breakouts. The cumulative area covered by breakouts exceeded that of primary flows, although breakouts frequently covered areas already buried by recent flows. Lava tubes established within primary flows were longer-lived than those formed within breakouts and were often reoccupied by lava after a brief hiatus in supply; tubes within breakouts were never reoccupied once the supply was interrupted. During intervals of steady supply from the vent, the daily areal coverage by lava in Kalapana was constant, whereas the forward advance of the flows was sporadic. This implies that planimetric area, rather than flow length, provides the best indicator of effusion rate for pahoehoe flow fields that form on lowangle slopes. ?? 1993 Springer-Verlag.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Bulletin of Volcanology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisherLocation":"Springer-Verlag","doi":"10.1007/BF00302000","issn":"02588900","usgsCitation":"Mattox, T.N., Heliker, C., Kauahikaua, J., and Hon, K., 1993, Development of the 1990 Kalapana Flow Field, Kilauea Volcano, Hawaii: Bulletin of Volcanology, v. 55, no. 6, p. 407-413, https://doi.org/10.1007/BF00302000.","startPage":"407","endPage":"413","numberOfPages":"7","costCenters":[],"links":[{"id":206162,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/BF00302000"},{"id":228886,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"55","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0067e4b0c8380cd4f74b","contributors":{"authors":[{"text":"Mattox, T. N.","contributorId":55450,"corporation":false,"usgs":true,"family":"Mattox","given":"T.","email":"","middleInitial":"N.","affiliations":[],"preferred":false,"id":376457,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Heliker, C.","contributorId":80314,"corporation":false,"usgs":true,"family":"Heliker","given":"C.","affiliations":[],"preferred":false,"id":376458,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kauahikaua, J. 0000-0003-3777-503X","orcid":"https://orcid.org/0000-0003-3777-503X","contributorId":26087,"corporation":false,"usgs":true,"family":"Kauahikaua","given":"J.","affiliations":[],"preferred":false,"id":376456,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hon, K.","contributorId":20471,"corporation":false,"usgs":true,"family":"Hon","given":"K.","email":"","affiliations":[],"preferred":false,"id":376455,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70017802,"text":"70017802 - 1993 - Exceptionally well-preserved early Oligocene diatoms from glacial sediments of Prydz Bay, East Antarctica","interactions":[],"lastModifiedDate":"2012-03-12T17:19:20","indexId":"70017802","displayToPublicDate":"1993-01-01T00:00:00","publicationYear":"1993","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2735,"text":"Micropaleontology","active":true,"publicationSubtype":{"id":10}},"title":"Exceptionally well-preserved early Oligocene diatoms from glacial sediments of Prydz Bay, East Antarctica","docAbstract":"An exceptionally well-preserved early Oligocene diatom assemblage is documented and illustrated from the internal sediment of a gastropod shell, which was collected from glacial sedments recovered at ODP Site 739, Prydz Bay, Antarctica. The diatoms were deposited between 35.9 and 34.8 Ma according to diatom and calcareous nannofossil stratigraphy, apparently soon after a period of major ice sheet advance across the Prydz Bay continental shelf. The diatom assemblage is neritic in character, but it can readily be correlated with open ocean assemblages from the Southern Ocean as well as with similar material recovered from the CIROS-1 drillhole in the Ross Sea. -Authors","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Micropaleontology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"00262803","usgsCitation":"Barron, J., and Mahood, A., 1993, Exceptionally well-preserved early Oligocene diatoms from glacial sediments of Prydz Bay, East Antarctica: Micropaleontology, v. 39, no. 1, p. 29-45.","startPage":"29","endPage":"45","numberOfPages":"17","costCenters":[],"links":[{"id":228397,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"39","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0da5e4b0c8380cd5310d","contributors":{"authors":[{"text":"Barron, J.A. 0000-0002-9309-1145","orcid":"https://orcid.org/0000-0002-9309-1145","contributorId":95461,"corporation":false,"usgs":true,"family":"Barron","given":"J.A.","affiliations":[],"preferred":false,"id":377608,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Mahood, A.D.","contributorId":55960,"corporation":false,"usgs":true,"family":"Mahood","given":"A.D.","email":"","affiliations":[],"preferred":false,"id":377607,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70017504,"text":"70017504 - 1993 - An extremely low UPb source in the Moon: U Th Pb, Sm Nd, Rb Sr, and 40Ar 39Ar isotopic systematics and age of lunar meteorite Asuka 881757","interactions":[],"lastModifiedDate":"2024-03-01T17:21:56.42327","indexId":"70017504","displayToPublicDate":"1993-01-01T00:00:00","publicationYear":"1993","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1759,"text":"Geochimica et Cosmochimica Acta","active":true,"publicationSubtype":{"id":10}},"displayTitle":"An extremely low UPb source in the Moon: U Th Pb, Sm Nd, Rb Sr, and <i>40</i>Ar <i>39</i>Ar isotopic systematics and age of lunar meteorite Asuka 881757","title":"An extremely low UPb source in the Moon: U Th Pb, Sm Nd, Rb Sr, and 40Ar 39Ar isotopic systematics and age of lunar meteorite Asuka 881757","docAbstract":"<p>We have undertaken U Th Pb, Sm Nd, Rb Sr, and<span>&nbsp;</span><span class=\"math\"><span id=\"MathJax-Element-3-Frame\" class=\"MathJax_SVG\" data-mathml=\"<math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;><msup><mi></mi><mn>40</mn></msup><mtext>Ar</mtext><msup><mi></mi><mn>39</mn></msup><mtext>Ar</mtext></math>\"><span class=\"MJX_Assistive_MathML\"><sup>40</sup>Ar<sup>39</sup>Ar</span></span></span><span>&nbsp;</span>isotopic studies on Asuka 881757, a coarse-grained basaltic lunar meteorite whose chemical composition is close to low-Ti and very low-Ti (VLT) mare basalts. The Pb Pb internal isochron obtained for acid leached residues of separated mineral fractions yields an age of 3940 ± 28 Ma, which is similar to the U-Pb (3850 ± 150 Ma) and Th-Pb (3820 ± 290 Ma) internal isochron ages. The Sm-Nd data for the mineral separates yield an internal isochron age of 3871 ± 57 Ma and an initial<span>&nbsp;</span><span class=\"math\"><span id=\"MathJax-Element-4-Frame\" class=\"MathJax_SVG\" data-mathml=\"<math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;><msup><mi></mi><mn>143</mn></msup><mtext>Nd</mtext><msup><mi></mi><mn>144</mn></msup><mtext>Nd</mtext></math>\"><span class=\"MJX_Assistive_MathML\"><sup>143</sup>Nd<sup>144</sup>Nd</span></span></span><span>&nbsp;</span>value of 0.50797 ± 10. The Rb-Sr data yield an internal isochron age of 3840 ± 32 Ma (<span class=\"math\"><span id=\"MathJax-Element-5-Frame\" class=\"MathJax_SVG\" data-mathml=\"<math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;><mtext>&amp;#x3BB;(</mtext><msup><mi></mi><mn>87</mn></msup><mtext>Rb) = 1.42 &amp;#xD7; 10</mtext><msup><mi></mi><mn>&amp;#x2212;11</mn></msup><mtext>yr</mtext><msup><mi></mi><mn>&amp;#x2212;1</mn></msup></math>\"><span class=\"MJX_Assistive_MathML\">λ(<sup>87</sup>Rb) = 1.42 × 10<sup>−11</sup>yr<sup>−1</sup></span></span></span>) and a low initial<span>&nbsp;</span><span class=\"math\"><span id=\"MathJax-Element-6-Frame\" class=\"MathJax_SVG\" data-mathml=\"<math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;><msup><mi></mi><mn>87</mn></msup><mtext>Sr</mtext><msup><mi></mi><mn>86</mn></msup><mtext>Sr</mtext></math>\"><span class=\"MJX_Assistive_MathML\"><sup>87</sup>Sr<sup>86</sup>Sr</span></span></span><span>&nbsp;</span>ratio of 0.69910 ± 2. The<span>&nbsp;</span><span class=\"math\"><span id=\"MathJax-Element-7-Frame\" class=\"MathJax_SVG\" data-mathml=\"<math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;><msup><mi></mi><mn>40</mn></msup><mtext>Ar</mtext><msup><mi></mi><mn>39</mn></msup><mtext>Ar</mtext></math>\"><span class=\"MJX_Assistive_MathML\"><sup>40</sup>Ar<sup>39</sup>Ar</span></span></span><span>&nbsp;</span>age spectra for a glass fragment and a maskelynitized plagioclase are relatively flat and give a weighted mean plateau age of 3798 ± 12 Ma. We interpret these ages to indicate that the basalt crystallized from a melt 3.87 Ga ago (the Sm-Nd age) and an impact event disturbed the Rb-Sr system and completely reset the K-Ar system at 3.80 Ga. The slightly higher Pb-Pb age compared to the Sm-Nd age could be due to the secondary Pb (from terrestrial and/or lunar surface Pb contamination) that remained in the residues after acid leaching. Alternatively, the following interpretation is also possible; the meteorite crystallized at 3.94 Ga (the Pb-Pb age) and the Sm-Nd, Rb-Sr, and K-Ar systems were disturbed by an impact event at 3.80 Ga. The crystallization age obtained here is older than those reported for low-Ti basalts (3.2–3.5 Ga) and for VLT basalts (3.4 Ga), but similar to ages of some mare basalts, indicating that the basalt may have formed from a magma related to a basin-forming event (Imbrium?). The age span for VLT basalts from different sampling sites suggest that they were erupted over a wide area during an interval of at least ~500 million years. The impact event that thermally reset the K-Ar system of Asuka 881757 must have been post-Imbrium (perhaps Orientale) in age.</p><p>The lead isotopic composition of Asuka 881757 is nonradiogenic compared with typical Apollo mare basalts and the estimated<span>&nbsp;</span><span class=\"math\"><span id=\"MathJax-Element-8-Frame\" class=\"MathJax_SVG\" data-mathml=\"<math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;><msup><mi></mi><mn>238</mn></msup><mtext>U</mtext><msup><mi></mi><mn>204</mn></msup><mtext>Pb</mtext></math>\"><span class=\"MJX_Assistive_MathML\"><sup>238</sup>U<sup>204</sup>Pb</span></span></span><span>&nbsp;</span>(μ) value for the basalt source is 10 ± 3. This source-μ value is the lowest so far measured for lunar rocks. A large positive<span>&nbsp;</span><i>ϵ</i><sub><i>Nd</i></sub><span>&nbsp;</span>value (7.4 ± 0.5) and the time averaged<sup><span> <span class=\"math\"><span id=\"MathJax-Element-9-Frame\" class=\"MathJax_SVG\" data-mathml=\"<math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;><msup><mi></mi><mn>147</mn></msup><mtext>Sm</mtext><msup><mi></mi><mn>144</mn></msup><mtext>Nd</mtext></math>\"><span class=\"MJX_Assistive_MathML\">1</span></span></span></span>47</sup><span class=\"math\"><span id=\"MathJax-Element-9-Frame\" class=\"MathJax_SVG\" data-mathml=\"<math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;><msup><mi></mi><mn>147</mn></msup><mtext>Sm</mtext><msup><mi></mi><mn>144</mn></msup><mtext>Nd</mtext></math>\"><span class=\"MJX_Assistive_MathML\">Sm<sup>144</sup>Nd</span></span></span>&nbsp;ratio for the basalt source are similar to those for some Apollo 12, 15, and 17 basalts, suggesting a LREE-depleted mantle, which is consistent with the global magma ocean hypothesis.</p><p>The U-Th-Pb, Sm-Nd, and Rb-Sr data on Asuka 881757 suggest that the basalt was derived from a low<span>&nbsp;</span><span class=\"math\"><span id=\"MathJax-Element-10-Frame\" class=\"MathJax_SVG\" data-mathml=\"<math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;><mtext>U</mtext><mtext>Pb</mtext></math>\"><span class=\"MJX_Assistive_MathML\">UPb</span></span></span>, low<span>&nbsp;</span><span class=\"math\"><span id=\"MathJax-Element-11-Frame\" class=\"MathJax_SVG\" data-mathml=\"<math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;><mtext>Rb</mtext><mtext>Sr</mtext></math>\"><span class=\"MJX_Assistive_MathML\">RbSr</span></span></span>, and high<span>&nbsp;</span><span class=\"math\"><span id=\"MathJax-Element-12-Frame\" class=\"MathJax_SVG\" data-mathml=\"<math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;><mtext>Sm</mtext><mtext>Nd</mtext></math>\"><span class=\"MJX_Assistive_MathML\">SmNd</span></span></span><span>&nbsp;</span>source region, mainly composed of olivine and orthopyroxene with minor amounts of plagioclase (or clinopyroxene) and with sulfides enriched in volatile chalcophile elements. The basalt source may be deep in origin and different in chemistry from those previously estimated from studies of Apollo and Luna mare basalts, indicating heterogeneous sources for mare basalts.</p>","language":"English","publisher":"Elsevier","doi":"10.1016/0016-7037(93)90193-Z","issn":"00167037","usgsCitation":"Misawa, K., Tatsumoto, M., Dalrymple, G.B., and Yanai, K., 1993, An extremely low UPb source in the Moon: U Th Pb, Sm Nd, Rb Sr, and 40Ar 39Ar isotopic systematics and age of lunar meteorite Asuka 881757: Geochimica et Cosmochimica Acta, v. 57, no. 19, p. 4687-4702, https://doi.org/10.1016/0016-7037(93)90193-Z.","productDescription":"16 p.","startPage":"4687","endPage":"4702","numberOfPages":"16","costCenters":[],"links":[{"id":228424,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"57","issue":"19","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059ea6ce4b0c8380cd48859","contributors":{"authors":[{"text":"Misawa, Keiji","contributorId":105459,"corporation":false,"usgs":true,"family":"Misawa","given":"Keiji","email":"","affiliations":[],"preferred":false,"id":376680,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Tatsumoto, M.","contributorId":76798,"corporation":false,"usgs":true,"family":"Tatsumoto","given":"M.","email":"","affiliations":[],"preferred":false,"id":376678,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Dalrymple, G. B.","contributorId":10407,"corporation":false,"usgs":true,"family":"Dalrymple","given":"G.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":376677,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Yanai, K.","contributorId":86130,"corporation":false,"usgs":true,"family":"Yanai","given":"K.","email":"","affiliations":[],"preferred":false,"id":376679,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70017695,"text":"70017695 - 1993 - Plans for a sensitivity analysis of bridge-scour computations","interactions":[],"lastModifiedDate":"2012-03-12T17:19:53","indexId":"70017695","displayToPublicDate":"1993-01-01T00:00:00","publicationYear":"1993","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Plans for a sensitivity analysis of bridge-scour computations","docAbstract":"Plans for an analysis of the sensitivity of Level 2 bridge-scour computations are described. Cross-section data from 15 bridge sites in Texas are modified to reflect four levels of field effort ranging from no field surveys to complete surveys. Data from United States Geological Survey (USGS) topographic maps will be used to supplement incomplete field surveys. The cross sections are used to compute the water-surface profile through each bridge for several T-year recurrence-interval design discharges. The effect of determining the downstream energy grade-line slope from topographic maps is investigated by systematically varying the starting slope of each profile. The water-surface profile analyses are then used to compute potential scour resulting from each of the design discharges. The planned results will be presented in the form of exceedance-probability versus scour-depth plots with the maximum and minimum scour depths at each T-year discharge presented as error bars.","largerWorkTitle":"Proceedings - National Conference on Hydraulic Engineering","conferenceTitle":"Proceedings of the 1993 National Conference on Hydraulic Engineering. Part 1 (of 2)","conferenceDate":"25 July 1993 through 30 July 1993","conferenceLocation":"San Francisco, CA, USA","language":"English","publisher":"Publ by ASCE","publisherLocation":"New York, NY, United States","isbn":"0872629201","usgsCitation":"Dunn, D., and Smith, P.N., 1993, Plans for a sensitivity analysis of bridge-scour computations, <i>in</i> Proceedings - National Conference on Hydraulic Engineering, no. pt 1, San Francisco, CA, USA, 25 July 1993 through 30 July 1993, p. 773-778.","startPage":"773","endPage":"778","numberOfPages":"6","costCenters":[],"links":[{"id":228992,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"issue":"pt 1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a7be3e4b0c8380cd7969b","contributors":{"authors":[{"text":"Dunn, David D.","contributorId":8461,"corporation":false,"usgs":true,"family":"Dunn","given":"David D.","affiliations":[],"preferred":false,"id":377294,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Smith, Peter N.","contributorId":13391,"corporation":false,"usgs":true,"family":"Smith","given":"Peter","email":"","middleInitial":"N.","affiliations":[],"preferred":false,"id":377295,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70017840,"text":"70017840 - 1993 - Origin and significance of tourmaline-rich rocks in the Broken Hill district, Australia","interactions":[],"lastModifiedDate":"2024-01-03T17:39:10.583577","indexId":"70017840","displayToPublicDate":"1993-01-01T00:00:00","publicationYear":"1993","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1472,"text":"Economic Geology","active":true,"publicationSubtype":{"id":10}},"title":"Origin and significance of tourmaline-rich rocks in the Broken Hill district, Australia","docAbstract":"<p><span>Tourmaline-rich rocks are widespread minor lithologies within the Early Proterozoic Willyama Supergroup in the Broken Hill district, Australia. Tourmaline concentrations occur in strata-bound and local stratiform tourmalinites, clastic metasedimentary rocks, quartz-gahnite lode rocks, stratiform Pb-Zn-Ag sulfide ores, garnet quartzites, strata-bound scheelite deposits, quartz-tourmaline nodules, discordant quartz veins, and granitic pegmatites. Most of the tourmaline-rich rocks are within the Broken Hill Group that hosts the main Pb-Zn-Ag ores.At the Globe mine along the northeast end of the main lodes, tourmalinites are closely associated with Pb-Zn-Ag mineralization and in places are interbedded with Mn-rich garnet quartzites. Galena and other ore minerals occur locally in the cores of recrystallized tourmaline grains in these tourmalinites, indicating that tourmaline and sulfides were present together prior to deformation and high-grade metamorphism. Electron microprobe analyses of tourmalines intergrown with Fe sulfides at the Globe mine show Mg-rich compositions relative to tourmalines in sulfide-free assemblages from the same area, suggesting early (premetamorphic) introduction of boron and Mg enrichment of tourmaline by sulfide-silicate reactions during metamorphism.Combined field and geochemical data indicate that the district tourmalinites represent normal clastic sediments that were metasomatically altered by boron-rich hydrothermal fluids at or below the sediment-water interface. Whole-rock chemical analyses of 33 tourmaline-rich rocks show linear trends of data for major and trace elements that closely resemble the trends observed for unmineralized elastic metasedimentary rocks of the district. Average Fe/Al, Mg/Al, Na/Al, and Ti/Al molar ratios of the tourmaline-rich rocks and clastic metasediments are very similar; the average K/Al molar ratio of the tourmaline-rich rocks is significantly lower than that of the clastic metasediments, reflecting the loss of K during tourmalinite formation. Chondrite-normalized patterns of rare earth elements (REE) in the quartz-rich tourmalinites are generally similar to those of the clastic metasediments, except for minor depletions of light REE; local positive and negative Ce anomalies suggest tourmalinite formation in the presence of seawater or a seawater-derived pore fluid. The geochemical data imply relative immobility of Al, Ti, Cr, and heavy REE during hydrothermal alteration and later metamorphism. Boron isotope analyses of 52 tourmaline separates show a total range of delta&nbsp;</span><sup>11</sup><span>&nbsp;B values from -26.8 to -17.0 per mil. Fine-grained, euhedral, nonpoikilitic tourmalines from tourmalinites in the andalusite-muscovite zone in the northern part of the district (e.g., Black Prince mine) have delta&nbsp;</span><sup>11</sup><span>&nbsp;B values from -21 to -17 per mil, whereas coarse granoblastic and poikilo-blastic tourmalines from the sillimanite and two-pyroxene granulite zones in the southern part of the district (e.g., Globe mine) have delta&nbsp;</span><sup>11</sup><span>&nbsp;B values of-24 to -19 per mil. Tourmalines in strongly retrogressed tourmalinites have delta&nbsp;</span><sup>11</sup><span>&nbsp;B values from about -27 to -20 per mil. The observed variations in delta&nbsp;</span><sup>11</sup><span>&nbsp;B are consistent with prograde and retrograde metamorphic fractionation of boron isotopes, in which the fluid phase is preferentially enriched in the heavier isotope (&nbsp;</span><sup>11</sup><span>&nbsp;B). Premetamorphic hydrothermal fluids that deposited the Black Prince tourmalinites had delta&nbsp;</span><sup>11</sup><span>&nbsp;B values of-8 to -5 per mil at 200 degrees to 300 degrees C, suggesting a boron source from nonmarine evaporite borates.Tourmalinites in the Broken Hill district apparently formed by the same submarine hydrothermal processes as the main Pb-Zn-Ag lodes and the siliceous ferromanganese protoliths of the garnet quartzites. In our model, the hydrothermal system(s) acquired abundant boron by leaching evaporitic borates within the Thackaringa Group, the stratigraphic sequence that underlies the Broken Hill Group and most of the tourmaline concentrations. We suggest that evaporites of the Thackaringa Group provided a source of readily extractable boron for formation of the tourmalinites and also the source of the fluoride, sulfur, and perhaps the carbonate in the main lodes; such evaporites may have been critical for increased metal chloride complexing and transport necessary for deposition of the high-grade Pb-Zn-Ag ores. The Broken Hill deposit may have formed contemporaneously with the Mount Isa and McArthur River Pb-Zn-Ag deposits in similar evaporite-bearing sequences during widespread Early Proterozoic continental rifting.</span></p>","language":"English","publisher":"Society of Economic Geologists","doi":"10.2113/gsecongeo.88.3.505","issn":"03610128","usgsCitation":"Slack, J.F., Palmer, M.R., Stevens, B., and Barnes, R., 1993, Origin and significance of tourmaline-rich rocks in the Broken Hill district, Australia: Economic Geology, v. 88, no. 3, p. 505-541, https://doi.org/10.2113/gsecongeo.88.3.505.","productDescription":"37 p.","startPage":"505","endPage":"541","numberOfPages":"37","costCenters":[],"links":[{"id":228905,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"88","issue":"3","noUsgsAuthors":false,"publicationDate":"1993-05-01","publicationStatus":"PW","scienceBaseUri":"505a70bee4b0c8380cd76202","contributors":{"authors":[{"text":"Slack, J. F.","contributorId":75917,"corporation":false,"usgs":true,"family":"Slack","given":"J.","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":377712,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Palmer, M. R.","contributorId":81256,"corporation":false,"usgs":true,"family":"Palmer","given":"M.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":377713,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Stevens, B.P.J.","contributorId":61173,"corporation":false,"usgs":true,"family":"Stevens","given":"B.P.J.","email":"","affiliations":[],"preferred":false,"id":377711,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Barnes, R.G.","contributorId":12621,"corporation":false,"usgs":true,"family":"Barnes","given":"R.G.","email":"","affiliations":[],"preferred":false,"id":377710,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70018366,"text":"70018366 - 1993 - A brief history of radioactive glassware","interactions":[],"lastModifiedDate":"2025-07-16T16:02:50.838645","indexId":"70018366","displayToPublicDate":"1993-01-01T00:00:00","publicationYear":"1993","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3227,"text":"Radiographics : a review publication of the Radiological Society of North America, Inc","active":true,"publicationSubtype":{"id":10}},"title":"A brief history of radioactive glassware","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"Radiological Society of North America","doi":"10.1148/radiographics.13.3.8316677","issn":"02715333","usgsCitation":"Landa, E.R., and DiSantis, D., 1993, A brief history of radioactive glassware: Radiographics : a review publication of the Radiological Society of North America, Inc, v. 13, no. 3, p. 697-699, https://doi.org/10.1148/radiographics.13.3.8316677.","productDescription":"3 p.","startPage":"697","endPage":"699","numberOfPages":"3","costCenters":[],"links":[{"id":226983,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"13","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e32ee4b0c8380cd45e7d","contributors":{"authors":[{"text":"Landa, E. R.","contributorId":100002,"corporation":false,"usgs":true,"family":"Landa","given":"E.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":379346,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"DiSantis, D.J.","contributorId":86911,"corporation":false,"usgs":true,"family":"DiSantis","given":"D.J.","email":"","affiliations":[],"preferred":false,"id":379345,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70017489,"text":"70017489 - 1993 - Mercury, arsenic, antimony, and selenium contents of sediment from the Kuskokwim River, Bethel, Alaska, USA","interactions":[],"lastModifiedDate":"2012-03-12T17:19:57","indexId":"70017489","displayToPublicDate":"1993-01-01T00:00:00","publicationYear":"1993","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1539,"text":"Environmental Geology","active":true,"publicationSubtype":{"id":10}},"title":"Mercury, arsenic, antimony, and selenium contents of sediment from the Kuskokwim River, Bethel, Alaska, USA","docAbstract":"The Kuskokwim River at Bethel, Alaska, drains a major mercury-antimony metallogenic province in its upper reaches and tributaries. Bethel (population 4000) is situated on the Kuskokwim floodplain and also draws its water supply from wells located in river-deposited sediment. A boring through overbank and floodplain sediment has provided material to establish a baseline datum for sediment-hosted heavy metals. Mercury (total), arsenic, antimony, and selenium contents were determined; aluminum was also determined and used as normalizing factor. The contents of the heavy metals were relatively constant with depth and do not reflect any potential enrichment from upstream contaminant sources. ?? 1993 Springer-Verlag.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Environmental Geology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisherLocation":"Springer-Verlag","doi":"10.1007/BF00789322","issn":"01775146","usgsCitation":"Belkin, H., and Sparck, H., 1993, Mercury, arsenic, antimony, and selenium contents of sediment from the Kuskokwim River, Bethel, Alaska, USA: Environmental Geology, v. 22, no. 2, p. 106-110, https://doi.org/10.1007/BF00789322.","startPage":"106","endPage":"110","numberOfPages":"5","costCenters":[],"links":[{"id":206172,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/BF00789322"},{"id":228978,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"22","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a5435e4b0c8380cd6cef4","contributors":{"authors":[{"text":"Belkin, H. E. 0000-0001-7879-6529","orcid":"https://orcid.org/0000-0001-7879-6529","contributorId":38160,"corporation":false,"usgs":true,"family":"Belkin","given":"H. E.","affiliations":[],"preferred":false,"id":376635,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Sparck, H.M.","contributorId":43518,"corporation":false,"usgs":true,"family":"Sparck","given":"H.M.","email":"","affiliations":[],"preferred":false,"id":376636,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70017456,"text":"70017456 - 1993 - Delayed Postglacial Uplift and Synglacial Sea Levels in Coastal Central New England","interactions":[],"lastModifiedDate":"2012-03-12T17:19:53","indexId":"70017456","displayToPublicDate":"1993-01-01T00:00:00","publicationYear":"1993","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3218,"text":"Quaternary Research","active":true,"publicationSubtype":{"id":10}},"title":"Delayed Postglacial Uplift and Synglacial Sea Levels in Coastal Central New England","docAbstract":"The postglacial uplift pattern indicated by elevations of ice-marginal glaciomarine deltas in coastal New England, deposited between approximately 15,000 and 14,000 yr B.P. during ice retreat from northeastern Massachusetts into southwestern Maine, is very similar to that previously recorded for glaciolacustrine deltas of similar age from inland areas of New England. Multiple regression analyses of elevations from both sets of deltas show an extremely close fit to tilted flat surfaces that rise 0.852 m/km to the N 28.5??W along the coast and 0.889 m/km to the N 20.5??W in western New England. The close similarity of uplift pattern in areas where elevation data are from different base-level media, along with additional shore-line evidence, indicates (1) that both areas are part of the same crustal postglacial uplift block, (2) that postglacial uplift was delayed until after 14,000 yr B.P., and (3) that little or no eustatic sea-level change occurred between 15,000 and 14,000 yr B.P., during which time the margin of the late Wisconsinan Laurentide ice sheet retreated about 100 km from Boston, Massachusetts, into southwestern Maine. Elevation data from even younger glaciomarine deltas in the coastal area indicate that soon after the ice margin reached southwestern Maine and adjacent New Hampshire (ca, 14,000 yr B.P.), eustatic sea level rose rapidly 7-10 m during the time that the ice margin retreated 5-10 km, which may have occurred during an interval of only 50-100 yr, Our new data not only confirm the delayed postglacial uplift model previously described for western New England, but also indicate that little or no eustatic sea-level change occurred during a substantial period of early deglaciation. However, at about 14,000 yr B.P., sea level rose rapidly. Postglacial uplift in the region apparently began between 14,000 and 13,300 yr B.P., before the retreating ice margin reached eastern Maine.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Quaternary Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1006/qres.1993.1055","issn":"00335894","usgsCitation":"Koteff, C., Robinson, Goldsmith, R., and Thompson, W., 1993, Delayed Postglacial Uplift and Synglacial Sea Levels in Coastal Central New England: Quaternary Research, v. 40, no. 1, p. 46-54, https://doi.org/10.1006/qres.1993.1055.","startPage":"46","endPage":"54","numberOfPages":"9","costCenters":[],"links":[{"id":228467,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":206115,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1006/qres.1993.1055"}],"volume":"40","issue":"1","noUsgsAuthors":false,"publicationDate":"2017-01-20","publicationStatus":"PW","scienceBaseUri":"5059fe5de4b0c8380cd4ecce","contributors":{"authors":[{"text":"Koteff, C.","contributorId":67646,"corporation":false,"usgs":true,"family":"Koteff","given":"C.","affiliations":[],"preferred":false,"id":376523,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Robinson, Jr. 0000-0002-9676-9564","orcid":"https://orcid.org/0000-0002-9676-9564","contributorId":8479,"corporation":false,"usgs":true,"family":"Robinson","suffix":"Jr.","email":"","affiliations":[{"id":245,"text":"Eastern Mineral and Environmental Resources Science Center","active":true,"usgs":true},{"id":5068,"text":"Midwest Regional Director's Office","active":true,"usgs":true}],"preferred":true,"id":376521,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Goldsmith, R.","contributorId":49809,"corporation":false,"usgs":true,"family":"Goldsmith","given":"R.","email":"","affiliations":[],"preferred":false,"id":376522,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Thompson, W.B.","contributorId":98326,"corporation":false,"usgs":true,"family":"Thompson","given":"W.B.","email":"","affiliations":[],"preferred":false,"id":376524,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70017455,"text":"70017455 - 1993 - Application of metal zoning to gold exploration in porphyry copper systems, by B.K. Jones: comments","interactions":[],"lastModifiedDate":"2024-04-16T00:27:35.130179","indexId":"70017455","displayToPublicDate":"1993-01-01T00:00:00","publicationYear":"1993","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2302,"text":"Journal of Geochemical Exploration","active":true,"publicationSubtype":{"id":10}},"title":"Application of metal zoning to gold exploration in porphyry copper systems, by B.K. Jones: comments","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"Elsevier","doi":"10.1016/0375-6742(92)90003-Q","issn":"03756742","usgsCitation":"Albino, G.V., 1993, Application of metal zoning to gold exploration in porphyry copper systems, by B.K. Jones: comments: Journal of Geochemical Exploration, v. 48, no. 3, p. 359-365, https://doi.org/10.1016/0375-6742(92)90003-Q.","productDescription":"7 p.","startPage":"359","endPage":"365","numberOfPages":"7","costCenters":[],"links":[{"id":228422,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"48","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059eca6e4b0c8380cd493e6","contributors":{"authors":[{"text":"Albino, George V.","contributorId":50545,"corporation":false,"usgs":true,"family":"Albino","given":"George","email":"","middleInitial":"V.","affiliations":[],"preferred":false,"id":376520,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70017686,"text":"70017686 - 1993 - Geological characterization of selected offshore sand resources on the OCS, offshore Alabama, for beach nourishment","interactions":[],"lastModifiedDate":"2012-03-12T17:19:54","indexId":"70017686","displayToPublicDate":"1993-01-01T00:00:00","publicationYear":"1993","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Geological characterization of selected offshore sand resources on the OCS, offshore Alabama, for beach nourishment","docAbstract":"Most Alabama Gulf and estuarine shoreline is undergoing long-term erosion; threatened shorelines will need programs of replenishment and maintenance if they are to be even temporarily stabilized. Highest priority beach replenishment areas include eastern Dauphin Island; west of Perdido Pass; and west of the inlet at Little Lagoon. There are no appropriate local onshore sand sources available for any such large scale program. Sediments in the Federal waters of the EEZ were evaluated for possible sources of sand for beach nourishment. Six lithofacies were delineated based on sediment characterization, spatial framework, and environment of deposition; of these, two (Clean Sands and Graded Shelly Sands) were deemed to have highest potential as beach nourishment sources. Five offshore target areas were delineated as potential sand sources. Criteria included sand aesthetics, estimated sand volume, and sand distributions. Preliminary environmental analyses included impacts of offshore sand dredging on shelf circulation; on economic activities; and on local benthic biota. Dredging may not significantly alter background wave regimes; however, data are insufficient to model effects of major storms on a modified shelf morphology. Dredging would avoid areas of current economic activity. There would like be little long-term impact on benthic biota in the target areas. Additional work will be required to confirm or refute these preliminary findings.","largerWorkTitle":"Coastal Zone: Proceedings of the Symposium on Coastal and Ocean Management","conferenceTitle":"Proceedings of the Eighth Symposium on Coastal and Ocean Management","conferenceDate":"19 July 1993 through 23 July 1993","conferenceLocation":"New Orleans, LA, USA","language":"English","publisher":"Publ by ASCE","publisherLocation":"New York, NY, United States","isbn":"087262918X","usgsCitation":"Davies, D.J., Parker, S.J., and Smith, W.E., 1993, Geological characterization of selected offshore sand resources on the OCS, offshore Alabama, for beach nourishment, <i>in</i> Coastal Zone: Proceedings of the Symposium on Coastal and Ocean Management, v. 1, New Orleans, LA, USA, 19 July 1993 through 23 July 1993, p. 1173-1187.","startPage":"1173","endPage":"1187","numberOfPages":"15","costCenters":[],"links":[{"id":228812,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a225de4b0c8380cd56f91","contributors":{"authors":[{"text":"Davies, David J.","contributorId":95634,"corporation":false,"usgs":true,"family":"Davies","given":"David","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":377266,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Parker, Steven J.","contributorId":68904,"corporation":false,"usgs":true,"family":"Parker","given":"Steven","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":377265,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Smith, W. Everett","contributorId":63555,"corporation":false,"usgs":true,"family":"Smith","given":"W.","email":"","middleInitial":"Everett","affiliations":[],"preferred":false,"id":377264,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70017497,"text":"70017497 - 1993 - Volumetric calculations in an oil field: The basis method","interactions":[],"lastModifiedDate":"2013-01-21T15:15:51","indexId":"70017497","displayToPublicDate":"1993-01-01T00:00:00","publicationYear":"1993","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1315,"text":"Computers & Geosciences","printIssn":"0098-3004","active":true,"publicationSubtype":{"id":10}},"title":"Volumetric calculations in an oil field: The basis method","docAbstract":"The basis method for estimating oil reserves in place is compared to a traditional procedure that uses ordinary kriging. In the basis method, auxiliary variables that sum to the net thickness of pay are estimated by cokriging. In theory, the procedure should be more powerful because it makes full use of the cross-correlation between variables and forces the original variables to honor interval constraints. However, at least in our case study, the practical advantages of cokriging for estimating oil in place are marginal. ?? 1993.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Computers and Geosciences","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elsevier","publisherLocation":"Amsterdam, Netherlands","doi":"10.1016/0098-3004(93)90065-D","issn":"00983004","usgsCitation":"Olea, R., Pawlowsky, V., and Davis, J., 1993, Volumetric calculations in an oil field: The basis method: Computers & Geosciences, v. 19, no. 10, p. 1517-1527, https://doi.org/10.1016/0098-3004(93)90065-D.","startPage":"1517","endPage":"1527","numberOfPages":"11","costCenters":[],"links":[{"id":266164,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/0098-3004(93)90065-D"},{"id":228327,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"19","issue":"10","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bc367e4b08c986b32b162","contributors":{"authors":[{"text":"Olea, Ricardo A. 0000-0003-4308-0808","orcid":"https://orcid.org/0000-0003-4308-0808","contributorId":26436,"corporation":false,"usgs":true,"family":"Olea","given":"Ricardo A.","affiliations":[{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true}],"preferred":false,"id":376660,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Pawlowsky, V.","contributorId":20921,"corporation":false,"usgs":true,"family":"Pawlowsky","given":"V.","affiliations":[],"preferred":false,"id":376659,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Davis, J.C.","contributorId":72121,"corporation":false,"usgs":true,"family":"Davis","given":"J.C.","email":"","affiliations":[],"preferred":false,"id":376661,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":1003990,"text":"1003990 - 1993 - Seasonal prevalence of Clostridium botulinum type C in the sediments of the northern California wetland","interactions":[],"lastModifiedDate":"2018-01-18T11:25:55","indexId":"1003990","displayToPublicDate":"1993-01-01T00:00:00","publicationYear":"1993","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2507,"text":"Journal of Wildlife Diseases","active":true,"publicationSubtype":{"id":10}},"title":"Seasonal prevalence of Clostridium botulinum type C in the sediments of the northern California wetland","docAbstract":"<p>The prevalence of Clostridium botulinum type C (% of positive sediment samples) was determined in 10 marshes at Sacramento National Wildlife Refuge (SNWR), located in the Central Valley of California (USA), where avian botulism epizootics occur regularly. Fifty-two percent of 2,200 sediment samples collected over an 18-mo period contained C. botulinum type C (both neurotoxic and aneurotoxic) which was present throughout the year in all 10 marshes. The prevalence of C. botulinum type C was similar in marshes with either high or low botulism losses in the previous 5 yr. Marshes with avian botulism mortality during the study had similar prevalences as marshes with no mortality. However, the prevalence of C. botulinum type C was higher in marshes that remained flooded all year (permanent) compared with marshes that were drained in the spring and reflooded in the fall (seasonal). The prevalence of C. botulinum type C declined in seasonal marshes during the dry period. Similar declines did not occur in the permanently flooded marshes.</p>","language":"English","publisher":"Wildlife Disease Association","doi":"10.7589/0090-3558-29.4.533","usgsCitation":"Sandler, R.J., Rocke, T., Samuel, M., and Yuill, T.M., 1993, Seasonal prevalence of Clostridium botulinum type C in the sediments of the northern California wetland: Journal of Wildlife Diseases, v. 29, no. 4, p. 533-539, https://doi.org/10.7589/0090-3558-29.4.533.","productDescription":"7 p.","startPage":"533","endPage":"539","numberOfPages":"7","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":456,"text":"National Wildlife Health Center","active":true,"usgs":true}],"links":[{"id":479523,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.7589/0090-3558-29.4.533","text":"Publisher Index Page"},{"id":135615,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","city":"Sacramento","otherGeospatial":"Sacramento National Wildlife Refuge","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -122.19371795654297,\n              39.452365839394055\n            ],\n            [\n              -122.13397979736327,\n              39.4528960328567\n            ],\n            [\n              -122.13466644287108,\n              39.36695204842929\n            ],\n            [\n              -122.1525192260742,\n              39.36827914916014\n            ],\n            [\n              -122.15320587158202,\n              39.361112505605156\n            ],\n            [\n              -122.17586517333984,\n              39.36190883564925\n            ],\n            [\n              -122.17620849609374,\n              39.36934081158634\n            ],\n            [\n              -122.19303131103516,\n              39.36854456627989\n            ],\n            [\n              -122.19371795654297,\n              39.452365839394055\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"29","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a0ce4b07f02db5fc301","contributors":{"authors":[{"text":"Sandler, Renee J.","contributorId":93454,"corporation":false,"usgs":true,"family":"Sandler","given":"Renee","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":314851,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Rocke, Tonie E. 0000-0003-3933-1563","orcid":"https://orcid.org/0000-0003-3933-1563","contributorId":88680,"corporation":false,"usgs":true,"family":"Rocke","given":"Tonie E.","affiliations":[],"preferred":false,"id":314850,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Samuel, M.D.","contributorId":13910,"corporation":false,"usgs":true,"family":"Samuel","given":"M.D.","affiliations":[],"preferred":false,"id":314848,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Yuill, Thomas M.","contributorId":60580,"corporation":false,"usgs":true,"family":"Yuill","given":"Thomas","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":314849,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70186783,"text":"70186783 - 1993 - Wyoming Geological Association special symposium on oil and gas and other resources of the Wind River basin, Wyoming","interactions":[],"lastModifiedDate":"2017-04-10T18:09:36","indexId":"70186783","displayToPublicDate":"1993-01-01T00:00:00","publicationYear":"1993","noYear":false,"publicationType":{"id":4,"text":"Book"},"publicationSubtype":{"id":12,"text":"Conference publication"},"title":"Wyoming Geological Association special symposium on oil and gas and other resources of the Wind River basin, Wyoming","docAbstract":"<p>No abstract available&nbsp;</p>","language":"English","publisher":"Wyo. Geol. Assoc.","usgsCitation":"1993, Wyoming Geological Association special symposium on oil and gas and other resources of the Wind River basin, Wyoming, 425 p. .","productDescription":"425 p. ","costCenters":[],"links":[{"id":339537,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58ec9a32e4b0b4d95d33527e","contributors":{"editors":[{"text":"Keefer, W. R.","contributorId":21538,"corporation":false,"usgs":true,"family":"Keefer","given":"W.","middleInitial":"R.","affiliations":[],"preferred":false,"id":690566,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"Metzger, W.J.","contributorId":190734,"corporation":false,"usgs":false,"family":"Metzger","given":"W.J.","email":"","affiliations":[],"preferred":false,"id":690567,"contributorType":{"id":2,"text":"Editors"},"rank":2},{"text":"Go, L. H.","contributorId":190733,"corporation":false,"usgs":false,"family":"Go","given":"L.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":690568,"contributorType":{"id":2,"text":"Editors"},"rank":3}]}}
,{"id":1014591,"text":"1014591 - 1993 - Single-feeding response of chinook salmon fry to potential feed intake modifiers","interactions":[],"lastModifiedDate":"2025-07-24T14:54:53.610159","indexId":"1014591","displayToPublicDate":"1993-01-01T00:00:00","publicationYear":"1993","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3196,"text":"Progressive Fish-Culturist","active":true,"publicationSubtype":{"id":10}},"title":"Single-feeding response of chinook salmon fry to potential feed intake modifiers","docAbstract":"<p><span>A study was conducted to determine the effects of various potential feed intake modifiers on initial feed consumption by spring chinook salmon (</span><i>Oncorhynchus tshawytscha</i><span>). Feed intake was immediately and significantly influenced when glycine, trimethylamine, or betaine was added to experimental diets. Results support the notion that glycine enhances feed intake, whereas trimethylamine and betaine decrease it. The reduced consumption of diets containing betaine, which has often been described as a feeding attractant, may have been a response to the chemical form of this compound used in this study (betaine hydrochloride) and may not occur if the free form of betaine is used.</span></p>","language":"English","publisher":"Oxford Academic","doi":"10.1577/1548-8640(1993)055%3C0040:SFROCS%3E2.3.CO;2","usgsCitation":"Hughes, S.G., 1993, Single-feeding response of chinook salmon fry to potential feed intake modifiers: Progressive Fish-Culturist, v. 55, no. 1, p. 40-42, https://doi.org/10.1577/1548-8640(1993)055%3C0040:SFROCS%3E2.3.CO;2.","productDescription":"3 p.","startPage":"40","endPage":"42","numberOfPages":"3","costCenters":[{"id":365,"text":"Leetown Science Center","active":true,"usgs":true}],"links":[{"id":132240,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"55","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49f6e4b07f02db5f1744","contributors":{"authors":[{"text":"Hughes, S. G.","contributorId":92200,"corporation":false,"usgs":true,"family":"Hughes","given":"S.","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":320675,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70186788,"text":"70186788 - 1993 - Velocity dependent friction of granite over a wide range of conditions","interactions":[],"lastModifiedDate":"2017-04-10T18:45:56","indexId":"70186788","displayToPublicDate":"1993-01-01T00:00:00","publicationYear":"1993","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1807,"text":"Geophysical Research Letters","active":true,"publicationSubtype":{"id":10}},"title":"Velocity dependent friction of granite over a wide range of conditions","docAbstract":"<p><span>Direct shear sliding experiments on bare ground surfaces of Westerly granite have been conducted over an exceptionally wide range of sliding rates (10</span><sup>−4</sup><span> µm/s to 10³ µm/s) at unconfined normal stresses (σ</span><sub><i>n</i></sub><span>) of 5, 15, 30, 70, and 150 MPa. A new sample configuration was developed that permitted measurements at normal stresses of 70 and 150 MPa without immediate sample failure. Measurements of steady-state velocity dependence of friction at velocities between 10</span><sup>−4</sup><span> and 1 µm/s show similar velocity weakening behavior at all normal stresses, with more negative dependence at lower slip rates. However, at rates above 10 µm/s, velocity weakening is observed only at σ</span><sub><i>n</i></sub><span>=30, 70 and 150 MPa, while velocity neutral behavior is observed at σ</span><sub><i>n</i></sub><span>=15 MPa and velocity strengthening is observed at σ</span><sub><i>n</i></sub><span>=5 MPa. The greater velocity weakening observed at velocities below 10</span><sup>−2</sup><span> µm/s may suggest a transition in competing deformation mechanisms, or the influence of additional mechanisms. The transition to velocity strengthening at high velocity and low normal stress implies that rapid slip on shallow faults could be arrested before resulting in true stick-slip behavior. Stable fault creep and creep events observed at shallow levels on some natural faults may result from this transition in velocity dependence.</span></p>","language":"English","publisher":"Wiley","doi":"10.1029/93GL00368","usgsCitation":"Kilgore, B.D., Blanpied, M., and Dieterich, J., 1993, Velocity dependent friction of granite over a wide range of conditions: Geophysical Research Letters, v. 20, no. 10, p. 903-906, https://doi.org/10.1029/93GL00368.","productDescription":"4 p. ","startPage":"903","endPage":"906","costCenters":[],"links":[{"id":339542,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"20","issue":"10","noUsgsAuthors":false,"publicationDate":"2012-12-07","publicationStatus":"PW","scienceBaseUri":"58ec9a31e4b0b4d95d335278","contributors":{"authors":[{"text":"Kilgore, Brian D. 0000-0003-0530-7979 bkilgore@usgs.gov","orcid":"https://orcid.org/0000-0003-0530-7979","contributorId":3887,"corporation":false,"usgs":true,"family":"Kilgore","given":"Brian","email":"bkilgore@usgs.gov","middleInitial":"D.","affiliations":[{"id":234,"text":"Earthquake Hazards Program","active":true,"usgs":true},{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":true,"id":690574,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Blanpied, Michael L. mblanpied@usgs.gov","contributorId":4807,"corporation":false,"usgs":true,"family":"Blanpied","given":"Michael L.","email":"mblanpied@usgs.gov","affiliations":[],"preferred":true,"id":690575,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Dieterich, James H.","contributorId":81489,"corporation":false,"usgs":true,"family":"Dieterich","given":"James H.","affiliations":[],"preferred":false,"id":690576,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70185279,"text":"70185279 - 1993 - Histopathologic lesions in sea otters exposed to crude oil","interactions":[],"lastModifiedDate":"2017-06-28T16:46:25","indexId":"70185279","displayToPublicDate":"1993-01-01T00:00:00","publicationYear":"1993","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3687,"text":"Veterinary Pathology","active":true,"publicationSubtype":{"id":10}},"title":"Histopathologic lesions in sea otters exposed to crude oil","docAbstract":"<p><span>Following the </span><i>Exxon Valdez</i><span> oil spill in Prince William Sound, Alaska, sea otters (</span><i>Enhydra lutris</i><span>) that appeared to be contaminated with oil, that were in danger of becoming contaminated, or that were behaving abnormally were captured and taken to rehabilitation centers. Exposure to oil was assessed by visual examination when otters arrived at the centers. Degree of oil exposure was graded according to the following criteria: oil covering greater than 60% of the body - heavily contaminated; oil covering 30–60% of the body - moderately contaminated; oil covering less than 30% of the body or light sheen on fur - lightly contaminated. If there was no oil visible, otters were considered uncontaminated. Tissues from 51 oil-contaminated sea otters (14 males, 37 females) and from six uncontaminated sea otters (three males, three females) that died in rehabilitation centers were examined histologically. Among oil-contaminated sea otters, 19/46 had interstitial pulmonary emphysema, 13/40 had gastric erosion and hemorrhage, 11/47 had centrilobular hepatic necrosis, 14/47 had periportal to diffuse hepatic lipidosis, and 10/42 had renal tubular lipidosis. Of the uncontaminated sea otters, 1/6 had gastric erosion and hemorrhage and 1/6 had diffuse hepatic lipidosis. Histologic examinations were performed on tissues from five sea otters (three males, two females) found dead with external oil present 15 to 16 days after the spill. Periportal hepatic lipidosis and renal tubular lipidosis were found in 3/5, and interstitial pulmonary emphysema was found in 1/5. Tissues from six apparently normal sea otters (four males, two females) collected from an area not affected by an oil spill were examined histologically, and none of these lesions were found. We conclude that interstitial pulmonary emphysema, centrilobular hepatic necrosis, and hepatic and renal lipidosis of sea otters were associated with exposure to crude oil. Gastric erosion and hemorrhage may have been associated with stress of captivity and/or oil exposure.</span></p>","language":"English","publisher":"SAGE Journals","doi":"10.1177/030098589303000101","usgsCitation":"Lipscomb, T., Harris, R., Moeller, R., Pletcher, J., Haebler, R., and Ballachey, B.E., 1993, Histopathologic lesions in sea otters exposed to crude oil: Veterinary Pathology, v. 30, no. 1, p. 1-11, https://doi.org/10.1177/030098589303000101.","productDescription":"12 p.","startPage":"1","endPage":"11","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":480303,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1177/030098589303000101","text":"Publisher Index Page"},{"id":337819,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","volume":"30","issue":"1","noUsgsAuthors":false,"publicationDate":"1993-01-01","publicationStatus":"PW","scienceBaseUri":"58ccf5a1e4b0849ce97f0d0e","contributors":{"authors":[{"text":"Lipscomb, T.P.","contributorId":174540,"corporation":false,"usgs":false,"family":"Lipscomb","given":"T.P.","email":"","affiliations":[],"preferred":false,"id":685000,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Harris, R.K.","contributorId":189492,"corporation":false,"usgs":false,"family":"Harris","given":"R.K.","email":"","affiliations":[],"preferred":false,"id":685001,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Moeller, R.B.","contributorId":189498,"corporation":false,"usgs":false,"family":"Moeller","given":"R.B.","affiliations":[],"preferred":false,"id":685002,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Pletcher, J.M.","contributorId":189499,"corporation":false,"usgs":false,"family":"Pletcher","given":"J.M.","email":"","affiliations":[],"preferred":false,"id":685003,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Haebler, R.J.","contributorId":189500,"corporation":false,"usgs":false,"family":"Haebler","given":"R.J.","affiliations":[],"preferred":false,"id":685004,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Ballachey, Brenda E. 0000-0003-1855-9171 bballachey@usgs.gov","orcid":"https://orcid.org/0000-0003-1855-9171","contributorId":2966,"corporation":false,"usgs":true,"family":"Ballachey","given":"Brenda","email":"bballachey@usgs.gov","middleInitial":"E.","affiliations":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true}],"preferred":true,"id":685005,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70018300,"text":"70018300 - 1993 - Hydrocarbons in oil residues on beaches of islands of Prince William Sound, Alaska","interactions":[],"lastModifiedDate":"2012-03-12T17:19:23","indexId":"70018300","displayToPublicDate":"1993-01-01T00:00:00","publicationYear":"1993","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2676,"text":"Marine Pollution Bulletin","active":true,"publicationSubtype":{"id":10}},"title":"Hydrocarbons in oil residues on beaches of islands of Prince William Sound, Alaska","docAbstract":"Aliphatic and aromatic hydrocarbons were measured on oil residues from beaches on six islands in Prince William Sound, Alaska. In addition to altered products from the Exxon Valdez oil spill of 1989, we also found, at two widely separated locations, residues that are similar to each other but chemically distinct from the spilled oil. Terpanes, steranes, monoaromatic steranes, and carbon isotopic compositions of total extracts were most useful in correlating the altered products of the spilled oil. These same parameters revealed that the two non-Valdez samples are likely residues of oil originally produced in California. The results indicate that oil residues currently on the beaches of this estuary have at least two quite different origins.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Marine Pollution Bulletin","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/0025-326X(93)90593-9","issn":"0025326X","usgsCitation":"Kvenvolden, K., Hostettler, F., Rapp, J.B., and Carlson, P., 1993, Hydrocarbons in oil residues on beaches of islands of Prince William Sound, Alaska: Marine Pollution Bulletin, v. 26, no. 1, p. 24-29, https://doi.org/10.1016/0025-326X(93)90593-9.","startPage":"24","endPage":"29","numberOfPages":"6","costCenters":[],"links":[{"id":487291,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1016/0025-326x(93)90593-9","text":"Publisher Index Page"},{"id":205905,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/0025-326X(93)90593-9"},{"id":227376,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"26","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a3328e4b0c8380cd5ed98","contributors":{"authors":[{"text":"Kvenvolden, K.A.","contributorId":80674,"corporation":false,"usgs":true,"family":"Kvenvolden","given":"K.A.","email":"","affiliations":[],"preferred":false,"id":379158,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hostettler, F. D.","contributorId":99563,"corporation":false,"usgs":true,"family":"Hostettler","given":"F. D.","affiliations":[],"preferred":false,"id":379160,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Rapp, J. B.","contributorId":28987,"corporation":false,"usgs":true,"family":"Rapp","given":"J.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":379157,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Carlson, P.R.","contributorId":97055,"corporation":false,"usgs":true,"family":"Carlson","given":"P.R.","email":"","affiliations":[],"preferred":false,"id":379159,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70018393,"text":"70018393 - 1993 - The geochemistry of methane in Lake Fryxell, an amictic, permanently ice-covered, antarctic lake","interactions":[],"lastModifiedDate":"2012-03-12T17:19:23","indexId":"70018393","displayToPublicDate":"1993-01-01T00:00:00","publicationYear":"1993","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1007,"text":"Biogeochemistry","active":true,"publicationSubtype":{"id":10}},"title":"The geochemistry of methane in Lake Fryxell, an amictic, permanently ice-covered, antarctic lake","docAbstract":"The abundance and distribution of dissolved CH4 were determined from 1987-1990 in Lake Fryxell, Antarctica, an amictic, permanently ice-covered lake in which solute movement is controlled by diffusion. CH4 concentrations were < 1 ??M in the upper oxic waters, but increased below the oxycline to 936 ??M at 18 m. Sediment CH4 was 1100 ??mol (1 sed)-1 in the 0-5 cm zone. Upward flux from the sediment was the source of the CH4, NH4 +, and DOC in the water column; CH4 was 27% of the DOC+CH4 carbon at 18 m. Incubations with surficial sediments indicated that H14CO3 - reduction was 0.4 ??mol (1 sed)-1 day-1 or 4?? the rate of acetate fermentation to CH4. There was no measurable CH4 production in the water column. However, depth profiles of CH4, NH4, and DIC normalized to bottom water concentrations demonstrated that a significant CH4 sink was evident in the anoxic, sulfate-containing zone of the water column (10-18 m). The ??13CH4 in this zone decreased from -72 % at 18 m to -76% at 12 m, indicating that the consumption mechanism did not result in an isotopic enrichment of 13CH4. In contrast, ??13CH4 increased to -55 % at 9 m due to aerobic oxidation, though this was a minor aspect of the CH4 cycle. The water column CH4 profile was modeled by coupling diffusive flux with a first order consumption term; the best-fit rate constant for anaerobic CH4 consumption was 0.012 yr-1. On a total carbon basis, CH4 consumption in the anoxic water column exerted a major effect on the flux of carbonaceous material from the underlying sediments and serves to exemplify the importance of CH4 to carbon cycling in Lake Fryxell. ?? 1993 Kluwer Academic Publishers.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Biogeochemistry","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisherLocation":"Kluwer Academic Publishers","doi":"10.1007/BF00000873","issn":"01682563","usgsCitation":"Smith, R.L., Miller, L., and Howes, B., 1993, The geochemistry of methane in Lake Fryxell, an amictic, permanently ice-covered, antarctic lake: Biogeochemistry, v. 21, no. 2, p. 95-115, https://doi.org/10.1007/BF00000873.","startPage":"95","endPage":"115","numberOfPages":"21","costCenters":[],"links":[{"id":205916,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/BF00000873"},{"id":227421,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"21","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bac4ee4b08c986b3233ed","contributors":{"authors":[{"text":"Smith, R. L.","contributorId":93904,"corporation":false,"usgs":true,"family":"Smith","given":"R.","email":"","middleInitial":"L.","affiliations":[{"id":595,"text":"U.S. Geological Survey","active":false,"usgs":true}],"preferred":false,"id":379423,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Miller, L.G.","contributorId":32522,"corporation":false,"usgs":true,"family":"Miller","given":"L.G.","email":"","affiliations":[],"preferred":false,"id":379421,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Howes, B.L.","contributorId":41854,"corporation":false,"usgs":true,"family":"Howes","given":"B.L.","email":"","affiliations":[],"preferred":false,"id":379422,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
]}