Apatite fission-track ages from basement rocks in the Wasatch Mountains between Ogden and Bountiful, Utah, range from 5 m.y. near the Wasatch fault along the west margin of the mountains to 94 m.y. on the crest of the range and show a correlation with altitude within individual fault blocks. Analysis of these ages yields an uplift rate of 0.4 mm/yr for the last 10 m.y. for the fault blocks having the most sustained rapid uplift. A variety of intermediate ages of apatite from the crest of the range and at lower altitudes is interpreted as representing fault blocks with rocks having mixed ages due to various degrees of tilting and varying but lesser amounts of uplift.
","language":"English","publisher":"Geological Society of America","doi":"10.1130/MEM157-p29","issn":"00721069","usgsCitation":"Naeser, C.W., Bryant, B., Crittenden, M.D., and Sorensen, M.L., 1983, Fission-track ages of apatite in the Wasatch Mountains, Utah: An uplift study: Memoir of the Geological Society of America, v. 157, no. 1, p. 29-36, https://doi.org/10.1130/MEM157-p29.","productDescription":"8 p. ","startPage":"29","endPage":"36","costCenters":[],"links":[{"id":369527,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States ","state":"Utah 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\"}}]}","volume":"157","issue":"1","noUsgsAuthors":false,"publicationDate":"1983-01-01","publicationStatus":"PW","contributors":{"authors":[{"text":"Naeser, C. W.","contributorId":17582,"corporation":false,"usgs":true,"family":"Naeser","given":"C.","middleInitial":"W.","affiliations":[],"preferred":false,"id":776024,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bryant, B.","contributorId":79240,"corporation":false,"usgs":true,"family":"Bryant","given":"B.","email":"","affiliations":[],"preferred":false,"id":776025,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Crittenden, M. D. Jr.","contributorId":43421,"corporation":false,"usgs":true,"family":"Crittenden","given":"M.","suffix":"Jr.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":776026,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Sorensen, M. L.","contributorId":79106,"corporation":false,"usgs":true,"family":"Sorensen","given":"M.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":776027,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70206843,"text":"70206843 - 1983 - Evidence for two pulses of glaciation during the late Proterozoic in northern Utah and southeastern Idaho","interactions":[],"lastModifiedDate":"2022-12-06T17:54:16.876959","indexId":"70206843","displayToPublicDate":"1983-12-31T08:02:05","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1786,"text":"Geological Society of America Bulletin","active":true,"publicationSubtype":{"id":10}},"title":"Evidence for two pulses of glaciation during the late Proterozoic in northern Utah and southeastern Idaho","docAbstract":"A record of glaciation during late Proterozoic time is preserved in a number of localities extending from the Sheeprock Mountains, Utah, to Pocatello, Idaho, and from the Park City area 40 km east of Salt Lake City to the Deep Creek Range along the Utah-Nevada line. Over much of this area, the glacial deposits and associated rocks thicken westward and form the basal part of a miogeoclinal wedge that accumulated near the late Proterozoic and early Paleozoic continental margin. In the east, such deposits are thin and rest on Archean basement or rocks of Proterozoic Y age; in the west, they are part of thicker sequences in which deposition apparently continued without significant interruption from late Proterozoic into Cambrian time. In many places, the original continuity between the western and eastern parts of the depositional wedge has been obscured by thrusting of Cretaceous and early Tertiary age that carried the thick basinal sequences eastward over those deposited on the continental platform. Recent mapping of Fremont Island in Great Salt Lake, the Wasatch Range between Ogden and Brigham City, and the Sheeprock Mountains shows that glacial episodes represented either by diamictite or by dropstones enclosed in finegrained laminated beds are separated by as much as 1,000 m of non-glacial deposits, including black slate, alternating graywacke and siltstone, quartzite, and conglomerate. Using reasonable sedimentation rates for such deposits and by comparison with modern analogues, we infer that two episodes of glaciation, each probably consisting of multiple advances and retreats, were separated by a non-glacial interval of a few hundred thousand to a few million years' duration. Correlation of the allochthonous, miogeoclinal glacial deposits with the single glacial unit present in autochthonous and parautochthonous platform sites is uncertain, but our interpretation of sedimentary facies and paleogeography suggests that only the younger of the two episodes recorded in the allochthon is represented by the diamictites of the autochthon.
","language":"English","publisher":"Geological Society of America","doi":"10.1130/0016-7606(1983)94<437:EFTPOG>2.0.CO;2","usgsCitation":"Crittenden, M.D., Christie-Blick, N., and Link, P.K., 1983, Evidence for two pulses of glaciation during the late Proterozoic in northern Utah and southeastern Idaho: Geological Society of America Bulletin, v. 94, no. 4, p. 437-450, https://doi.org/10.1130/0016-7606(1983)94<437:EFTPOG>2.0.CO;2.","productDescription":"14 p.","startPage":"437","endPage":"450","costCenters":[],"links":[{"id":480220,"rank":3,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://doi.org/10.7916/d8q24982","text":"External Repository"},{"id":369526,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":410110,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.geoscienceworld.org/gsa/gsabulletin/article/94/4/437/202851/Evidence-for-two-pulses-of-glaciation-during-the","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Idaho, Utah","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -115.1806640625,\n 39.90973623453719\n ],\n [\n -110.0830078125,\n 39.90973623453719\n ],\n [\n -110.0830078125,\n 43.59630591596548\n ],\n [\n -115.1806640625,\n 43.59630591596548\n ],\n [\n -115.1806640625,\n 39.90973623453719\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"94","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Crittenden, M. D. Jr.","contributorId":43421,"corporation":false,"usgs":true,"family":"Crittenden","given":"M.","suffix":"Jr.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":776017,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Christie-Blick, N","contributorId":220862,"corporation":false,"usgs":false,"family":"Christie-Blick","given":"N","affiliations":[],"preferred":false,"id":776018,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Link, Paul K.","contributorId":271204,"corporation":false,"usgs":false,"family":"Link","given":"Paul","email":"","middleInitial":"K.","affiliations":[{"id":38154,"text":"Idaho State University","active":true,"usgs":false}],"preferred":false,"id":776019,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70197591,"text":"70197591 - 1983 - New data on the age of Lepidocyclina in California","interactions":[],"lastModifiedDate":"2024-05-07T16:17:29.053664","indexId":"70197591","displayToPublicDate":"1983-12-31T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2294,"text":"Journal of Foraminiferal Research","active":true,"publicationSubtype":{"id":10}},"title":"New data on the age of Lepidocyclina in California","docAbstract":"During the 1930's and early 1940's, controversy about the age of Lepidocyclina californica and faunas associated with it led to unreconcilable differences of opinion in the attempt to provide a standard stratigraphic framework for Cenozoic rocks of western North America. Two standards with significantly different series age assignments were provided, one based largelyon benthic foraminifers and the other on mollusks and echinoderms. Although both standards have more recently converged in regard to correlating faunas of the Pacific Coast with those in Europe, and although the age of Lepidocyclina has been more firmly established in various countries, the age of the California Lepidocyclina remains in doubt. We report here, for the first time, planktic foraminifers and calcareous nannoplankton associated with the Lepidocyclina. These floras and faunas correlate with the Helicosphaera ampliaperta Zone of Bukrv and Zone N 7 of Blow and indicate that Lepidocyclina californica is probably early Miocene. This revised age removes the basis for the significantly different series age assignments for the Pacific Coast standards.
","language":"English","publisher":"Cushman Foundation for Foraminiferal Research","publisherLocation":"Lawrence, KS","doi":"10.2113/gsjfr.13.3.167","usgsCitation":"Brabb, E.E., McDougall, K., and Poore, R., 1983, New data on the age of Lepidocyclina in California: Journal of Foraminiferal Research, v. 13, no. 3, p. 167-178, https://doi.org/10.2113/gsjfr.13.3.167.","productDescription":"12 p.","startPage":"167","endPage":"178","costCenters":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"links":[{"id":354989,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"13","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Brabb, E. E.","contributorId":43780,"corporation":false,"usgs":true,"family":"Brabb","given":"E.","middleInitial":"E.","affiliations":[],"preferred":false,"id":737858,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"McDougall, Kristen 0000-0002-8788-3664","orcid":"https://orcid.org/0000-0002-8788-3664","contributorId":52673,"corporation":false,"usgs":true,"family":"McDougall","given":"Kristen","email":"","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":737859,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Poore, R.Z.","contributorId":35314,"corporation":false,"usgs":true,"family":"Poore","given":"R.Z.","email":"","affiliations":[],"preferred":false,"id":737860,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70197827,"text":"70197827 - 1983 - The ophiolitic North Fork terrane in the Salmon River region, central Klamath Mountains, California","interactions":[],"lastModifiedDate":"2018-06-21T09:38:27","indexId":"70197827","displayToPublicDate":"1983-12-31T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1723,"text":"GSA Bulletin","active":true,"publicationSubtype":{"id":10}},"title":"The ophiolitic North Fork terrane in the Salmon River region, central Klamath Mountains, California","docAbstract":"The North Fork terrane is an assemblage of ophiolitic and other oceanic volcanic and sedimentary rocks that has been internally imbricated and folded. The ophiolitic rocks form a north-trending belt through the central part of the region and consist of a disrupted sequence of homogeneous gabbro, diabase, massive to pillowed basalt, and interleaved tectonitic harzburgite. U-Pb zircon age data on a plagiogranite pod from the gabbroic unit indicate that at least this part of the igneous sequence is late Paleozoic in age.
The ophiolitic belt is flanked on either side by mafic volcanic and volcaniclastic rocks, limestone, bedded chert, and argillite. Most of the chert is Triassic, including much of Late Triassic age, but chert with uncertain stratigraphic relations at one locality is Permian. The strata flanking the east side of the ophiolitic belt face eastward, and depositional contacts between units are for the most part preserved. The strata on the west side of the ophiolitic belt are more highly disrupted than those on the east side, contain chert-argillite melange, and have unproven stratigraphic relation to either the ophiolitic rocks or the eastern strata.
Rocks of the North Fork terrane do not show widespread evidence of penetrative deformation at elevated temperatures, except an early tectonitic fabric in the harzburgite. Slip-fiber foliation in serpentinite, phacoidal foliation in chert and mafic rocks, scaly foliation in argillite, and mesoscopic folds in bedded chert are consistent with an interpretation of large-scale anti-formal folding of the terrane about a north-south hinge found along the ophiolitic belt, but other structural interpretations are tenable. The age of folding of North Fork rocks is constrained by the involvement of Triassic and younger cherts and crosscutting Late Jurassic plutons. Deformation in the North Fork terrane must have spanned a short period of time because the terrane is bounded structurally above and below by Middle or Late Jurassic thrust faults.
The North Fork terrane appears to contain no arc volcanic rocks or arc-derived detritus, suggesting that it neither constituted the base for an arc nor was in a basinal setting adjacent to an arc sediment source. Details of the progressive accretion and evolutionary relationship of the North Fork to other terranes of the Klamath Mountains are not yet clear.
","language":"English","publisher":"Geological Society of America","doi":"10.1130/0016-7606(1983)94<236:TONFTI>2.0.CO;2","usgsCitation":"Ando, C., Irwin, W., Jones, D.L., and Saleeby, J., 1983, The ophiolitic North Fork terrane in the Salmon River region, central Klamath Mountains, California: GSA Bulletin, v. 94, no. 2, p. 236-252, https://doi.org/10.1130/0016-7606(1983)94<236:TONFTI>2.0.CO;2.","productDescription":"17 p.","startPage":"236","endPage":"252","costCenters":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"links":[{"id":355247,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","otherGeospatial":"Klamath Mountains","volume":"94","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Ando, C.J.","contributorId":205855,"corporation":false,"usgs":false,"family":"Ando","given":"C.J.","email":"","affiliations":[],"preferred":false,"id":738681,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Irwin, W. P.","contributorId":82347,"corporation":false,"usgs":true,"family":"Irwin","given":"W. P.","affiliations":[],"preferred":false,"id":738682,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Jones, D. L.","contributorId":65045,"corporation":false,"usgs":true,"family":"Jones","given":"D.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":738683,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Saleeby, J.B.","contributorId":36148,"corporation":false,"usgs":true,"family":"Saleeby","given":"J.B.","email":"","affiliations":[],"preferred":false,"id":738684,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70198202,"text":"70198202 - 1983 - Correlation of metamorphosed Paleozoic strata of the southeastern Mojave Desert region, California and Arizona","interactions":[],"lastModifiedDate":"2018-07-20T09:54:40","indexId":"70198202","displayToPublicDate":"1983-12-31T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1723,"text":"GSA Bulletin","active":true,"publicationSubtype":{"id":10}},"title":"Correlation of metamorphosed Paleozoic strata of the southeastern Mojave Desert region, California and Arizona","docAbstract":"Isolated outcrops of deformed, regionally metamorphosed Paleozoic strata are scattered within the southeastern Mojave Desert region of California and western Arizona. These strata unconformably overlie a basement of Proterozoic crystalline rocks and are overlain in turn by metamorphosed Mesozoic sedimentary rocks. The strata can be correlated lithostratigraphically with the classic cratonal Paleozoic section of the western Grand Canyon, Arizona, and with nonmetamorphosed Paleozoic sections transitional between cratonal and miogeoclinal in the Ship, Marble, and Providence Mountains, California. The strata evidently were once continuous with Paleozoic epicontinental strata exposed throughout the southern Great Basin and Colorado Plateau.
Outcrops of Paleozoic strata and of the underlying Proterozoic basement in the southeastern Mojave Desert region define a terrane that has been disrupted by Mesozoic thrust faults and by Tertiary detachment faults but that nevertheless retain a gross paleogeographic coherence. This coherent terrane extends at least as far west and southwest as the Big Maria, Palen, and Calumet Mountains, and possibly beyond to include Paleozoic exposures in the San Bernardino Mountains and near Victorville. Poorly understood tectonic boundaries separate the area of paleogeographic coherence from known or suspected allochthonous terranes in the western Mojave Desert and the eastern Transverse Ranges.
","language":"English","publisher":"Geological Society of America","doi":"10.1130/0016-7606(1983)94<1135:COMPSO>2.0.CO;2","usgsCitation":"Stone, P., Howard, K.A., and Hamilton, W., 1983, Correlation of metamorphosed Paleozoic strata of the southeastern Mojave Desert region, California and Arizona: GSA Bulletin, v. 94, no. 10, p. 1135-1147, https://doi.org/10.1130/0016-7606(1983)94<1135:COMPSO>2.0.CO;2.","productDescription":"13 p.","startPage":"1135","endPage":"1147","costCenters":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"links":[{"id":355839,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Arizona, California","otherGeospatial":"Mojave Desert","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -116.30126953125,\n 32.76880048488168\n ],\n [\n -113.26904296874999,\n 32.76880048488168\n ],\n [\n -113.26904296874999,\n 35.11990857099681\n ],\n [\n -116.30126953125,\n 35.11990857099681\n ],\n [\n -116.30126953125,\n 32.76880048488168\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"94","issue":"10","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Stone, Paul 0000-0002-1439-0156 pastone@usgs.gov","orcid":"https://orcid.org/0000-0002-1439-0156","contributorId":273,"corporation":false,"usgs":true,"family":"Stone","given":"Paul","email":"pastone@usgs.gov","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":740550,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Howard, Keith A. 0000-0002-6462-2947 khoward@usgs.gov","orcid":"https://orcid.org/0000-0002-6462-2947","contributorId":3439,"corporation":false,"usgs":true,"family":"Howard","given":"Keith","email":"khoward@usgs.gov","middleInitial":"A.","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":740551,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hamilton, Warren","contributorId":14819,"corporation":false,"usgs":true,"family":"Hamilton","given":"Warren","affiliations":[],"preferred":false,"id":740552,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70198203,"text":"70198203 - 1983 - Introduction","interactions":[],"lastModifiedDate":"2018-07-20T09:54:26","indexId":"70198203","displayToPublicDate":"1983-12-31T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1726,"text":"GSA Memoirs","active":true,"publicationSubtype":{"id":10}},"title":"Introduction","docAbstract":"Tectonic and Stratigraphic Studies in the Eastern Great Basin is compiled as a tribute to Max D. Crittenden, Jr., whose geologic leadership and exemplary studies in the eastern Great Basin region have stimulated significant scientific advances. Many of the authors in this volume conducted their studies with assistance from Max, and much of the foundation for these studies is his work on the foreland thrust belt in the Wasatch Mountains of Utah.
","language":"English","publisher":"Geological Society of America","doi":"10.1130/MEM157-p1","usgsCitation":"Miller, D., and Howard, K.A., 1983, Introduction: GSA Memoirs, p. 1-2, https://doi.org/10.1130/MEM157-p1.","productDescription":"2 p.","startPage":"1","endPage":"2","costCenters":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"links":[{"id":355840,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationDate":"1983-01-01","publicationStatus":"PW","contributors":{"editors":[{"text":"Miller, D. M. (compiler)","contributorId":51760,"corporation":false,"usgs":true,"family":"Miller","given":"D.","suffix":"(compiler)","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":740560,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"Todd, V. R.","contributorId":89918,"corporation":false,"usgs":true,"family":"Todd","given":"V.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":740561,"contributorType":{"id":2,"text":"Editors"},"rank":2},{"text":"Howard, K. A.","contributorId":48938,"corporation":false,"usgs":false,"family":"Howard","given":"K.","middleInitial":"A.","affiliations":[],"preferred":false,"id":740562,"contributorType":{"id":2,"text":"Editors"},"rank":3}],"authors":[{"text":"Miller, D. M. 0000-0003-3711-0441","orcid":"https://orcid.org/0000-0003-3711-0441","contributorId":104422,"corporation":false,"usgs":true,"family":"Miller","given":"D. M.","affiliations":[],"preferred":false,"id":740558,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Howard, Keith A. 0000-0002-6462-2947 khoward@usgs.gov","orcid":"https://orcid.org/0000-0002-6462-2947","contributorId":3439,"corporation":false,"usgs":true,"family":"Howard","given":"Keith","email":"khoward@usgs.gov","middleInitial":"A.","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":740559,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70197826,"text":"70197826 - 1983 - Conodonts of the western Paleozoic and Triassic belt, Klamath Mountains, California and Oregon","interactions":[],"lastModifiedDate":"2018-06-21T09:29:01","indexId":"70197826","displayToPublicDate":"1983-12-31T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2412,"text":"Journal of Paleontology","active":true,"publicationSubtype":{"id":10}},"title":"Conodonts of the western Paleozoic and Triassic belt, Klamath Mountains, California and Oregon","docAbstract":"Conodonts were extracted from 32 samples of limestone and 5 samples of chert obtained from the Western Paleozoic and Triassic belt of the Klamath Mountains province. Triassic conodonts were found in 17 samples, and late Paleozoic conodonts in 7 samples. Conodonts of the remaining 13 samples cannot be dated more closely than early or middle Paleozoic through Triassic. The late Paleozoic conodonts are restricted to the North Fork and Hayfork terranes. The Hayfork terrane also contains Early, Middle, and Late Triassic conodonts; mostly Neogondolella. Conodonts from samples of the Rattlesnake Creek terrane and the northern undivided part of the belt are all Late Triassic and are generally Epigondolella. The conodont data support the concept that many of the limestone bodies are olistoliths or tectonic blocks in melange. Color alteration of the conodonts indicates that the rocks of the Western Paleozoic and Triassic belt have been heated to temperatures between 300 degrees and 500 degrees C during regional tectonism.
","language":"English","publisher":"American Geological Institute","usgsCitation":"Irwin, W., Wardlaw, B.R., and Kaplan, T., 1983, Conodonts of the western Paleozoic and Triassic belt, Klamath Mountains, California and Oregon: Journal of Paleontology, v. 57, no. 5, p. 1030-1039.","productDescription":"10 p.","startPage":"1030","endPage":"1039","costCenters":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"links":[{"id":355243,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":355242,"rank":1,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.geoscienceworld.org/jpaleontol/article/57/5/1030/81756/conodonts-of-the-western-paleozoic-and-triassic"}],"country":"United States","state":"California, Oregon","otherGeospatial":"Klamath Mountains","volume":"57","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Irwin, William P.","contributorId":12889,"corporation":false,"usgs":true,"family":"Irwin","given":"William P.","affiliations":[],"preferred":false,"id":738678,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wardlaw, Bruce R. bwardlaw@usgs.gov","contributorId":266,"corporation":false,"usgs":true,"family":"Wardlaw","given":"Bruce","email":"bwardlaw@usgs.gov","middleInitial":"R.","affiliations":[{"id":243,"text":"Eastern Geology and Paleoclimate Science Center","active":true,"usgs":true}],"preferred":true,"id":738679,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kaplan, T.A.","contributorId":205832,"corporation":false,"usgs":false,"family":"Kaplan","given":"T.A.","email":"","affiliations":[],"preferred":false,"id":738680,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70156959,"text":"70156959 - 1983 - Airborne geophysical survey of the Shaqra' quadrangle, sheet 25","interactions":[],"lastModifiedDate":"2015-09-02T13:30:44","indexId":"70156959","displayToPublicDate":"1983-12-30T19:45:00","publicationYear":"1983","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":4,"text":"Other Government Series"},"title":"Airborne geophysical survey of the Shaqra' quadrangle, sheet 25","docAbstract":"Geological map of Shaqra', Saudi Arabia with geological legend and explanation.
","language":"English","publisher":"Ministry for Mineral Resources","publisherLocation":"Jiddah, Saudi Arabia","usgsCitation":"U.S. Geological Survey Saudi Arabia Mission, and Saudi Arabia. Deputy Ministry for Mineral Resources, 1983, Airborne geophysical survey of the Shaqra' quadrangle, sheet 25, Map.","productDescription":"Map","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":307876,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Saudi Arabia","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n 44,\n 25\n ],\n [\n 44,\n 27\n ],\n [\n 49,\n 27\n ],\n [\n 49,\n 25\n ],\n [\n 44,\n 25\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"55e81da9e4b0dacf699e664e","contributors":{"authors":[{"text":"U.S. Geological Survey Saudi Arabia Mission","contributorId":147326,"corporation":true,"usgs":false,"organization":"U.S. Geological Survey Saudi Arabia Mission","id":571249,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Saudi Arabia. Deputy Ministry for Mineral Resources","contributorId":147327,"corporation":true,"usgs":false,"organization":"Saudi Arabia. Deputy Ministry for Mineral Resources","id":571250,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70156951,"text":"70156951 - 1983 - Airborne geophysical survey of the Ar Riyad quadrangle, sheet 24 I","interactions":[],"lastModifiedDate":"2015-09-02T13:33:16","indexId":"70156951","displayToPublicDate":"1983-12-30T19:45:00","publicationYear":"1983","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":4,"text":"Other Government Series"},"title":"Airborne geophysical survey of the Ar Riyad quadrangle, sheet 24 I","docAbstract":"Geological map of Ar Riyad, Saudi Arabia with geological legend and explanation.
","language":"English","publisher":"Ministry for Mineral Resources","publisherLocation":"Jiddah, Saudi Arabia","usgsCitation":"U.S. Geological Survey Saudi Arabia Mission, and Saudi Arabia. Deputy Ministry for Mineral Resources, 1983, Airborne geophysical survey of the Ar Riyad quadrangle, sheet 24 I, 6 maps ; 44 x 60 cm, on sheets each 57 x 85 cm, folded in envelope to 29 x 21 cm.","productDescription":"6 maps ; 44 x 60 cm, on sheets each 57 x 85 cm, folded in envelope to 29 x 21 cm.","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":307873,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Saudi Arabia","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n 46,\n 24\n ],\n [\n 46,\n 26\n ],\n [\n 48,\n 26\n ],\n [\n 48,\n 24\n ],\n [\n 46,\n 24\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"55e81da9e4b0dacf699e6649","contributors":{"authors":[{"text":"U.S. Geological Survey Saudi Arabia Mission","contributorId":147326,"corporation":true,"usgs":false,"organization":"U.S. Geological Survey Saudi Arabia Mission","id":571243,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Saudi Arabia. Deputy Ministry for Mineral Resources","contributorId":147327,"corporation":true,"usgs":false,"organization":"Saudi Arabia. Deputy Ministry for Mineral Resources","id":571244,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70157374,"text":"70157374 - 1983 - An interpretation of gravity and aeromagnetic surveys of the Greater Jiddah area, Kingdom of Saudi Arabia","interactions":[],"lastModifiedDate":"2024-01-29T22:47:33.492427","indexId":"70157374","displayToPublicDate":"1983-12-30T19:30:00","publicationYear":"1983","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":9,"text":"Other Report"},"title":"An interpretation of gravity and aeromagnetic surveys of the Greater Jiddah area, Kingdom of Saudi Arabia","docAbstract":"A gravity survey of the Jiddah area between lat 21°23' and 21°48' N., long 39°03' and 39°20' E., carried out in early 1977, covers an area of 744 km2 and includes 215 stations, at an average spacing of 1.9 km. The resulting simple Bouguer gravity anomaly map shows a series of four large (7-15 mgal) gravity anomaly highs along a north-trending gravity gradient located immediately west of outcrops of Precambrian rocks. The regional Bouguer gravity anomaly field of the map area decreases eastward at an approximately constant rate of about 1.1 mgal-km-1. Several anomalies suggest northeast-trending, right-lateral strike-slip faulting throughout the area.
Interpretation of the Bouguer gravity anomaly map, combined with geologic, aeromagnetic, and paleomagnetic data, leads to an interpretive model in which the gravity gradient marks the boundary zone between Precambrian continental crust to the east and oceanic sea-floor crust overlain by marine sedimentary rocks to the west. The strike-slip faults in the area are probably the landward extension of offshore Red Sea transform faults, and, because they penetrate and offset continental crust, their study may yield useful information about the mechanism of transform faulting. The gravity anomaly highs are interpreted to result from shallow intrusive bodies, probably gabbroic in composition, that are buried a few hundred meters below the surface and that are approximately 2 km thick.
","language":"English","publisher":"U.S. Geological Survey, Saudi Arabian Mission","publisherLocation":"Jiddah, Saudi Arabia","usgsCitation":"Gettings, M.E., and Andreasen, G., 1983, An interpretation of gravity and aeromagnetic surveys of the Greater Jiddah area, Kingdom of Saudi Arabia, Report: iv, 37 p.; 3 Plates: 37.52 x 43.15 inches or smaller.","productDescription":"Report: iv, 37 p.; 3 Plates: 37.52 x 43.15 inches or smaller","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":308359,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/unnumbered/70157374/report-thumb.jpg"},{"id":360857,"rank":3,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/unnumbered/70157374/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":360856,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/unnumbered/70157374/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":360858,"rank":4,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/unnumbered/70157374/plate-2.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":360859,"rank":5,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/unnumbered/70157374/plate-3.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"Saudi Arabia","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n 39.2,\n 20.5\n ],\n [\n 38.7,\n 23\n ],\n [\n 41,\n 23\n ],\n [\n 41,\n 20.5\n ],\n [\n 39.2,\n 20.5\n ]\n ]\n ]\n }\n }\n ]\n}","publicComments":"SA(IR) 528, Open-File Report USGS-OF-03-31","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"56027bafe4b03bc34f5447e8","contributors":{"authors":[{"text":"Gettings, Mark E. 0000-0002-2910-2321 mgetting@usgs.gov","orcid":"https://orcid.org/0000-0002-2910-2321","contributorId":602,"corporation":false,"usgs":true,"family":"Gettings","given":"Mark","email":"mgetting@usgs.gov","middleInitial":"E.","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":572907,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Andreasen, Gordon E.","contributorId":94272,"corporation":false,"usgs":true,"family":"Andreasen","given":"Gordon E.","affiliations":[],"preferred":false,"id":572908,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70011350,"text":"70011350 - 1983 - Plutonium speciation in water from Mono Lake, California","interactions":[],"lastModifiedDate":"2025-11-25T15:22:04.609349","indexId":"70011350","displayToPublicDate":"1983-12-23T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3338,"text":"Science","active":true,"publicationSubtype":{"id":10}},"title":"Plutonium speciation in water from Mono Lake, California","docAbstract":"The solubility of plutonium in Mono Lake water is enhanced by the presence of large concentrations of indigenous carbonate ions and moderate concentrations of fluoride ions. In spite of the complex chemical composition of this water, only a few ions govern the behavior of plutonium, as demonstrated by the fact that it was possible to duplicate plutonium speciation in a synthetic water containing only the principal components of Mono Lake water.","language":"English","publisher":"American Association for the Advancement of Science","doi":"10.1126/science.222.4630.1323","issn":"00368075","usgsCitation":"Cleveland, J., Rees, T., and Nash, K., 1983, Plutonium speciation in water from Mono Lake, California: Science, v. 222, no. 4630, p. 1323-1325, https://doi.org/10.1126/science.222.4630.1323.","productDescription":"3 p.","startPage":"1323","endPage":"1325","costCenters":[],"links":[{"id":220973,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","otherGeospatial":"Mono Lake","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -119.23547883490315,\n 38.11956391803898\n ],\n [\n -119.23547883490315,\n 37.894106221864334\n ],\n [\n -118.82146949863339,\n 37.894106221864334\n ],\n [\n -118.82146949863339,\n 38.11956391803898\n ],\n [\n -119.23547883490315,\n 38.11956391803898\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"222","issue":"4630","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a7c9de4b0c8380cd79aa4","contributors":{"authors":[{"text":"Cleveland, J.M.","contributorId":66734,"corporation":false,"usgs":true,"family":"Cleveland","given":"J.M.","email":"","affiliations":[],"preferred":false,"id":360892,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Rees, T.F.","contributorId":26068,"corporation":false,"usgs":true,"family":"Rees","given":"T.F.","email":"","affiliations":[],"preferred":false,"id":360890,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Nash, K.L.","contributorId":27191,"corporation":false,"usgs":true,"family":"Nash","given":"K.L.","affiliations":[],"preferred":false,"id":360891,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70207327,"text":"70207327 - 1983 - Comment and reply on ‘Transgressive-regressive cycles and the occurrence of coal in some Upper Cretaceous strata of Utah’: Comment","interactions":[],"lastModifiedDate":"2020-06-03T13:39:35.859274","indexId":"70207327","displayToPublicDate":"1983-12-17T10:15:57","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1796,"text":"Geology","active":true,"publicationSubtype":{"id":10}},"title":"Comment and reply on ‘Transgressive-regressive cycles and the occurrence of coal in some Upper Cretaceous strata of Utah’: Comment","docAbstract":"No abstract available.
","language":"English","publisher":"Geographical Society of America","doi":"10.1130/0091-7613(1983)11<736b:CAROTC>2.0.CO;2","usgsCitation":"Fassett, J.E., 1983, Comment and reply on ‘Transgressive-regressive cycles and the occurrence of coal in some Upper Cretaceous strata of Utah’: Comment: Geology, v. 11, no. 12, p. 736-737, https://doi.org/10.1130/0091-7613(1983)11<736b:CAROTC>2.0.CO;2.","productDescription":"2 p.","startPage":"736","endPage":"737","costCenters":[{"id":165,"text":"Central Energy Resources Team","active":false,"usgs":true}],"links":[{"id":370339,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United 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\"}}]}","volume":"11","issue":"12","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Fassett, James E. jfassett@usgs.gov","contributorId":73590,"corporation":false,"usgs":true,"family":"Fassett","given":"James","email":"jfassett@usgs.gov","middleInitial":"E.","affiliations":[{"id":165,"text":"Central Energy Resources Team","active":false,"usgs":true}],"preferred":false,"id":777724,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70207111,"text":"70207111 - 1983 - Strain‐rate profile across the Elsinore, San Jacinto, and San Andreas Faults near Palm Springs, California, 1973‐81","interactions":[],"lastModifiedDate":"2020-06-01T12:28:14.525601","indexId":"70207111","displayToPublicDate":"1983-12-06T12:23:24","publicationYear":"1983","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":"Strain‐rate profile across the Elsinore, San Jacinto, and San Andreas Faults near Palm Springs, California, 1973‐81","docAbstract":"A profile of the strain accumulation rate along a line trending N50°E across the subparallel Elsinore, San Jacinto, and San Andreas faults near Palm Springs, California, has been constructed from trilateration surveys in the 1973‐81 interval. The strain accumulation is principally right‐lateral shear across a vertical plane parallel to fault strike (N40°W). The strain rate profile for that component exhibits two clearly resolved maxima, one centered on the San Jacinto fault (γmax = 0.35 ± 0.02 µrad/a) and the other on the San Andreas fault (γmax = 0.40 ± 0.02 µrad/a); no maximum is associated with the Elsinore fault. This result clearly implies that slip at depth on both the San Andreas and San Jacinto faults is loading the shallower sections of these faults, and that eventually rupture can be expected on both.
","language":"English","publisher":"American Geophysical Union","doi":"10.1029/GL010i001p00055","usgsCitation":"King, N., and Savage, J.C., 1983, Strain‐rate profile across the Elsinore, San Jacinto, and San Andreas Faults near Palm Springs, California, 1973‐81: Geophysical Research Letters, v. 10, no. 1, p. 55-57, https://doi.org/10.1029/GL010i001p00055.","productDescription":"3 p.","startPage":"55","endPage":"57","costCenters":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"links":[{"id":370046,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","otherGeospatial":"San Andreas Fault","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -119.61914062499999,\n 32.861132322810946\n ],\n [\n -114.60937499999999,\n 32.861132322810946\n ],\n [\n -114.60937499999999,\n 34.92197103616377\n ],\n [\n -119.61914062499999,\n 34.92197103616377\n ],\n [\n -119.61914062499999,\n 32.861132322810946\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"10","issue":"1","noUsgsAuthors":false,"publicationDate":"2012-12-07","publicationStatus":"PW","contributors":{"authors":[{"text":"King, N.E.","contributorId":29950,"corporation":false,"usgs":true,"family":"King","given":"N.E.","email":"","affiliations":[],"preferred":false,"id":776863,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Savage, James C. 0000-0002-5114-7673 jasavage@usgs.gov","orcid":"https://orcid.org/0000-0002-5114-7673","contributorId":2412,"corporation":false,"usgs":true,"family":"Savage","given":"James","email":"jasavage@usgs.gov","middleInitial":"C.","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":true,"id":776864,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70207110,"text":"70207110 - 1983 - Precision of geodolite surveys: A reply to Jackson and Cheng","interactions":[],"lastModifiedDate":"2020-06-01T12:24:54.488547","indexId":"70207110","displayToPublicDate":"1983-12-06T12:15:54","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2314,"text":"Journal of Geophysical Research B: Solid Earth","active":true,"publicationSubtype":{"id":10}},"title":"Precision of geodolite surveys: A reply to Jackson and Cheng","docAbstract":"Jackson and Cheng have suggested that the changes in areal dilatation measured in Geodolite surveys by the U.S. Geological Survey may be simply an artifact of the measuring system. Although systematic error could conceivably account for the observed excursions in dilatation, we maintain that the specific criticisms by Jackson and Cheng are incorrect: the excursions in dilatation cannot be attributed to the offset correction nor to proportional error associated with temperature. The absence of both errors is demonstrated by using data that are particularly sensitive to the two effects.
","language":"English","publisher":"American Geophysical Union","doi":"10.1029/JB088iB12p10478","usgsCitation":"Savage, J.C., and Prescott, W., 1983, Precision of geodolite surveys: A reply to Jackson and Cheng: Journal of Geophysical Research B: Solid Earth, v. 88, no. B12, p. 10478-10484, https://doi.org/10.1029/JB088iB12p10478.","productDescription":"7 p.","startPage":"10478","endPage":"10484","costCenters":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"links":[{"id":370045,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"88","issue":"B12","noUsgsAuthors":false,"publicationDate":"2012-09-20","publicationStatus":"PW","contributors":{"authors":[{"text":"Savage, James C. 0000-0002-5114-7673 jasavage@usgs.gov","orcid":"https://orcid.org/0000-0002-5114-7673","contributorId":2412,"corporation":false,"usgs":true,"family":"Savage","given":"James","email":"jasavage@usgs.gov","middleInitial":"C.","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":true,"id":776861,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Prescott, W.H.","contributorId":96337,"corporation":false,"usgs":true,"family":"Prescott","given":"W.H.","email":"","affiliations":[],"preferred":false,"id":776862,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70207109,"text":"70207109 - 1983 - Strain accumulation in western United States","interactions":[],"lastModifiedDate":"2020-06-01T12:22:40.138835","indexId":"70207109","displayToPublicDate":"1983-12-06T12:06:24","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":806,"text":"Annual Review of Earth and Planetary Sciences","active":true,"publicationSubtype":{"id":10}},"title":"Strain accumulation in western United States","docAbstract":"This review is principally concerned with recent geodetic strain measurements in western United States undertaken by the US Geological Survey as part of the earthquake studies program and, as a consequence, is heavily biased toward the author's own publications. Most of the publications reporting crustal-strain measurements in western United States prior to about 1968 have been compiled in one volume (National Geodetic Survey 1973), and more recent work (with complete bibliographies) is summarized in three successive quadrennial reports to the International Union of Geodesy and Geophysics (Meade 1971, Savage 1975, Thatcher 1979b). The following conventions are employed in this paper: Strain, a dimensionless quantity, is reported in units of 106 Extension is taken as positive. To distinguish between engineering and tensor shear strain, we denote the former by γ and quote the units as μrad, whereas the latter is denoted by e and given the units of μstrain. Uncertainties in all cases are quoted as ± one standard deviation.
","language":"English","publisher":"Annual Review","doi":"10.1146/annurev.ea.11.050183.000303","usgsCitation":"Savage, J.C., 1983, Strain accumulation in western United States: Annual Review of Earth and Planetary Sciences, v. 11, p. 11-43, https://doi.org/10.1146/annurev.ea.11.050183.000303.","productDescription":"33 p.","startPage":"11","endPage":"43","costCenters":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"links":[{"id":370042,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","otherGeospatial":"Southern California","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -117.23510742187501,\n 32.731840896865684\n ],\n [\n -114.697265625,\n 32.731840896865684\n ],\n [\n -114.697265625,\n 34.4793919710481\n ],\n [\n -117.23510742187501,\n 34.4793919710481\n ],\n [\n -117.23510742187501,\n 32.731840896865684\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"11","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Savage, James C. 0000-0002-5114-7673 jasavage@usgs.gov","orcid":"https://orcid.org/0000-0002-5114-7673","contributorId":2412,"corporation":false,"usgs":true,"family":"Savage","given":"James","email":"jasavage@usgs.gov","middleInitial":"C.","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":true,"id":776860,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70207108,"text":"70207108 - 1983 - A dislocation model of strain accumulation and release at a subduction zone","interactions":[],"lastModifiedDate":"2020-06-01T12:19:07.642338","indexId":"70207108","displayToPublicDate":"1983-12-06T12:02:29","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2314,"text":"Journal of Geophysical Research B: Solid Earth","active":true,"publicationSubtype":{"id":10}},"title":"A dislocation model of strain accumulation and release at a subduction zone","docAbstract":"Strain accumulation and release at a subduction zone are attributed to stick slip on the main thrust zone and steady aseismic slip on the remainder of the plate interface. This process can be described as a superposition of steady state subduction and a repetitive cycle of slip on the main thrust zone, consisting of steady normal slip at the plate convergence rate plus occasional thrust events that recover the accumulated normal slip. Because steady state subduction does not contribute to the deformation at the free surface, deformation observed there is completely equivalent to that produced by the slip cycle alone. The response to that slip is simply the response of a particular earth model to embedded dislocations. For a purely elastic earth model, the deformation cycle consists of a coseismic offset followed by a linear‐in‐time recovery to the initial value during the interval between earthquakes. For an elastic‐viscoelastic earth model (elastic lithosphere over a viscoelastic asthenosphere), the postearthquake recovery is not linear in time. Records of local uplift as a function of time indicate that the long‐term postseismic recovery is approximately linear, suggesting that elastic earth models are adequate to describe the deformation cycle. However, the deformation predicted for a simple elastic half‐space earth model does not reproduce the deformation observed along the subduction zones in Japan at all well if stick slip is restricted to the main thrust zone. As recognized earlier by Shimazaki, Seno, and Kato, the uplift profiles could be explained if stick slip were postulated to extend along the plate interface beyond the main thrust zone to a depth of perhaps 100 km, but independent evidence suggests that stick slip at such depths is unlikely.
","language":"English","publisher":"American Geophysical Union","doi":"10.1029/JB088iB06p04984","usgsCitation":"Savage, J.C., 1983, A dislocation model of strain accumulation and release at a subduction zone: Journal of Geophysical Research B: Solid Earth, v. 88, no. B6, p. 4984-4996, https://doi.org/10.1029/JB088iB06p04984.","productDescription":"13 p.","startPage":"4984","endPage":"4996","costCenters":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"links":[{"id":370041,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"88","issue":"B6","noUsgsAuthors":false,"publicationDate":"2012-09-20","publicationStatus":"PW","contributors":{"authors":[{"text":"Savage, James C. 0000-0002-5114-7673 jasavage@usgs.gov","orcid":"https://orcid.org/0000-0002-5114-7673","contributorId":2412,"corporation":false,"usgs":true,"family":"Savage","given":"James","email":"jasavage@usgs.gov","middleInitial":"C.","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":true,"id":776859,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":5223721,"text":"5223721 - 1983 - The significance of diurnal terrestrial emergency of green turtles (Chelonia mydas) in the Gal?pagos Archipelago","interactions":[],"lastModifiedDate":"2023-08-29T15:52:09.35813","indexId":"5223721","displayToPublicDate":"1983-12-01T12:19:13","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1045,"text":"Biotropica","active":true,"publicationSubtype":{"id":10}},"title":"The significance of diurnal terrestrial emergency of green turtles (Chelonia mydas) in the Gal?pagos Archipelago","docAbstract":"The diurnal, nonreproductive emergence of green turtles Chelonia mydas in Galapagos apparently occurs throughout the year on several islands. Turtles on beaches have cloacal temperatures that exceed temperatures of adjacent coastal waters. Basking turtles are predominately females. We hypothesize that females bask to accelerate digestion and fat build-up, necessary antecedents to egg production in reproductive periods. Basking turtles show a trend to clump among available beaches. Such behavior may be a response to microclimatic differences between beaches, although such differences were not apparent to us. The occurrence of thermoregulatory behavior in marine turtles in Galapagos may be a response to the cool waters of the Humboldt Current.
","language":"English","publisher":"Wiley","doi":"10.2307/2387653","usgsCitation":"Snell, H., and Fritts, T.H., 1983, The significance of diurnal terrestrial emergency of green turtles (Chelonia mydas) in the Gal?pagos Archipelago: Biotropica, v. 15, no. 4, p. 285-291, https://doi.org/10.2307/2387653.","productDescription":"7 p.","startPage":"285","endPage":"291","numberOfPages":"7","costCenters":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":199957,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Ecuador","otherGeospatial":"Galapagos Archipelago","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -92.30646174996666,\n 0.8730502262746143\n ],\n [\n -92.30646174996666,\n -1.5980348549939265\n ],\n [\n -88.94125174801036,\n -1.5980348549939265\n ],\n [\n -88.94125174801036,\n 0.8730502262746143\n ],\n [\n -92.30646174996666,\n 0.8730502262746143\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"15","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a62e4b07f02db636405","contributors":{"authors":[{"text":"Snell, H.L.","contributorId":49314,"corporation":false,"usgs":false,"family":"Snell","given":"H.L.","email":"","affiliations":[],"preferred":false,"id":339343,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Fritts, Thomas H.","contributorId":77204,"corporation":false,"usgs":true,"family":"Fritts","given":"Thomas","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":339342,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70011183,"text":"70011183 - 1983 - K-Ar ages and the opening of the South Atlantic Ocean: Basaltic rock from the Brazilian margin","interactions":[],"lastModifiedDate":"2024-10-16T16:24:54.784161","indexId":"70011183","displayToPublicDate":"1983-12-01T00:00:00","publicationYear":"1983","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":"K-Ar ages and the opening of the South Atlantic Ocean: Basaltic rock from the Brazilian margin","docAbstract":"In the event of the development of the large oil shale reserves of Colorado, Utah, and Wyoming, one of the main environmental concerns will be disposal of retorted-oil shale which will be generated in greater volume than the original volume oI the mined oil shale. Investigators have found that leachates of retorted-oil shale are alkaline and have large concentrations of dissolved solids, molybdenum, boron, and fluoride (STOLLENWERK & RUNNELS 1981). STOLLENWERK & RUNNELS (1981) concluded that drainage from waste shale piles could have deleterious effects on the water quality of streams in northwestern Colorado.
","language":"English","publisher":"Springer","doi":"10.1007/BF01610091","usgsCitation":"McKnight, D.M., Pereira, W.E., Rostad, C.E., and Stiles, E.A., 1983, Effect of retorted-oil shale leachate on a blue-green alga (Anabaena flos-aquae): Bulletin of Environmental Contamination and Toxicology, v. 30, no. 1, p. 6-16, https://doi.org/10.1007/BF01610091.","productDescription":"11 p. ","startPage":"6","endPage":"16","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":338321,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"30","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58d6303fe4b05ec799131115","contributors":{"authors":[{"text":"McKnight, Diane M.","contributorId":59773,"corporation":false,"usgs":false,"family":"McKnight","given":"Diane","email":"","middleInitial":"M.","affiliations":[{"id":16833,"text":"INSTAAR, University of Colorado","active":true,"usgs":false}],"preferred":false,"id":686136,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Pereira, Wilfred E.","contributorId":95552,"corporation":false,"usgs":true,"family":"Pereira","given":"Wilfred","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":686137,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Rostad, Colleen E. cerostad@usgs.gov","contributorId":833,"corporation":false,"usgs":true,"family":"Rostad","given":"Colleen","email":"cerostad@usgs.gov","middleInitial":"E.","affiliations":[],"preferred":true,"id":686138,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Stiles, Eric A.","contributorId":8449,"corporation":false,"usgs":true,"family":"Stiles","given":"Eric","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":686139,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70186166,"text":"70186166 - 1983 - Rhodamine-WT dye losses in a mountain stream environment","interactions":[],"lastModifiedDate":"2020-01-26T09:40:51","indexId":"70186166","displayToPublicDate":"1983-12-01T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2529,"text":"Journal of the American Water Resources Association","active":true,"publicationSubtype":{"id":10}},"title":"Rhodamine-WT dye losses in a mountain stream environment","docAbstract":"A significant fraction of rhodamine WT dye was lost during a short term multitracer injection experiment in a mountain stream environment. The conservative anion chloride and the sorbing cation lithium were concurrently injected. In-stream rhodamine WT concentrations were as low as 45 percent of that expected, based on chloride data. Concentration data were available from shallow‘wells’dug near the stream course and from a seep of suspected return flow. Both rhodamine WT dye and lithium were nonconservative with respect to the conservative chloride, with rhodamine WT dye closely following the behavior of the sorbing lithium.
Nonsorption and sorption mechanisms for rhodamine WT loss in a mountain stream were evaluated in laboratory experiments. Experiments evaluating nonsorption losses indicated minimal losses by such mechanisms. Laboratory experiments using sand and gravel size streambed sediments show an appreciable capacity for rhodamine WT sorption.
The detection of tracers in the shallow wells and seep indicates interaction between the stream and the flow in the surrounding subsurface, intergravel water, system. The injected tracers had ample opportunity for intimate contact with materials shown in the laboratory experiments to be potentially sorptive. It is suggested that in the study stream system, interaction with streambed gravel was a significant mechanism for the attenuation of rhodamine WT dye (relative to chloride).
","language":"English","publisher":"Wiley","doi":"10.1111/j.1752-1688.1983.tb05944.x","usgsCitation":"Bencala, K.E., Rathburn, R.E., Jackman, A.P., Kennedy, V.C., Zellweger, G.W., and Avanzino, R.J., 1983, Rhodamine-WT dye losses in a mountain stream environment: Journal of the American Water Resources Association, v. 19, no. 6, p. 943-950, https://doi.org/10.1111/j.1752-1688.1983.tb05944.x.","productDescription":"8 p. ","startPage":"943","endPage":"950","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":338829,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"19","issue":"6","noUsgsAuthors":false,"publicationDate":"2007-06-08","publicationStatus":"PW","scienceBaseUri":"58de1955e4b02ff32c699cdd","contributors":{"authors":[{"text":"Bencala, Kenneth E. kbencala@usgs.gov","contributorId":1541,"corporation":false,"usgs":true,"family":"Bencala","given":"Kenneth","email":"kbencala@usgs.gov","middleInitial":"E.","affiliations":[],"preferred":true,"id":687732,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Rathburn, Ronald E.","contributorId":190187,"corporation":false,"usgs":false,"family":"Rathburn","given":"Ronald","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":687733,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Jackman, Alan P.","contributorId":28239,"corporation":false,"usgs":true,"family":"Jackman","given":"Alan","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":687734,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Kennedy, Vance C.","contributorId":102063,"corporation":false,"usgs":true,"family":"Kennedy","given":"Vance","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":687735,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Zellweger, Gary W.","contributorId":71171,"corporation":false,"usgs":true,"family":"Zellweger","given":"Gary","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":687736,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Avanzino, Ronald J.","contributorId":24355,"corporation":false,"usgs":true,"family":"Avanzino","given":"Ronald","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":687737,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70011264,"text":"70011264 - 1983 - Chlorine-36 dating of saline sediments: Preliminary results from Searles Lake, California","interactions":[],"lastModifiedDate":"2025-11-25T15:35:33.648754","indexId":"70011264","displayToPublicDate":"1983-11-25T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3338,"text":"Science","active":true,"publicationSubtype":{"id":10}},"title":"Chlorine-36 dating of saline sediments: Preliminary results from Searles Lake, California","docAbstract":"Measurements have been made of the ratios of chlorine-36 to chlorine in five halite samples from Searles Lake sediments, previously dated by carbon-14, thorium-230, and magnetostratigraphic techniques. The ages calculated from the chlorine ratios are generally concordant with those from the other methods, implying the constancy of the chlorine input ratio over the last million years.","language":"English","publisher":"American Association for the Advancement of Science","doi":"10.1126/science.222.4626.925","issn":"00368075","usgsCitation":"Phillips, F.M., Smith, G., Bentley, H., Elmore, D., and Gove, H., 1983, Chlorine-36 dating of saline sediments: Preliminary results from Searles Lake, California: Science, v. 222, no. 4626, p. 925-927, https://doi.org/10.1126/science.222.4626.925.","productDescription":"3 p.","startPage":"925","endPage":"927","costCenters":[],"links":[{"id":220762,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","otherGeospatial":"Searles Lake","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -117.39690339186222,\n 35.79957409122409\n ],\n [\n -117.39690339186222,\n 35.645141078056525\n ],\n [\n -117.24319408854454,\n 35.645141078056525\n ],\n [\n -117.24319408854454,\n 35.79957409122409\n ],\n [\n -117.39690339186222,\n 35.79957409122409\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"222","issue":"4626","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f5cee4b0c8380cd4c426","contributors":{"authors":[{"text":"Phillips, F. M.","contributorId":24493,"corporation":false,"usgs":true,"family":"Phillips","given":"F.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":360695,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Smith, G.I.","contributorId":103694,"corporation":false,"usgs":true,"family":"Smith","given":"G.I.","email":"","affiliations":[],"preferred":false,"id":360698,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bentley, H.W.","contributorId":88481,"corporation":false,"usgs":true,"family":"Bentley","given":"H.W.","email":"","affiliations":[],"preferred":false,"id":360697,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Elmore, D.","contributorId":83268,"corporation":false,"usgs":true,"family":"Elmore","given":"D.","email":"","affiliations":[],"preferred":false,"id":360696,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Gove, H.E.","contributorId":16576,"corporation":false,"usgs":true,"family":"Gove","given":"H.E.","email":"","affiliations":[],"preferred":false,"id":360694,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70012088,"text":"70012088 - 1983 - Three Mars years: Viking Lander 1 imaging observations","interactions":[],"lastModifiedDate":"2025-11-25T15:46:00.82647","indexId":"70012088","displayToPublicDate":"1983-11-04T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3338,"text":"Science","active":true,"publicationSubtype":{"id":10}},"title":"Three Mars years: Viking Lander 1 imaging observations","docAbstract":"The Mutch Memorial Station (Viking Lander 1) on Mars acquired imaging and meteorological data over a period of 2245 martian days (3:3 martian years). This article discusses the deposition and erosion of thin deposits (ten to hundreds of micrometers) of bright red dust associated with global dust storms, and the removal of centimeter amounts of material in selected areas during a dust storm late in the third winter. Atmospheric pressure data acquired during the period of intense erosion imply that baroclinic disturbances and strong diurnal solar tidal heating combined to produce strong winds. Erosion occurred principally in areas where soil cohesion was reduced by earlier surface sampler activities. Except for redistribution of thin layers of materials, the surface appears to be remarkably stable, perhaps because of cohesion of the undisturbed surface material.","language":"English","publisher":"American Association for the Advancement of Science","doi":"10.1126/science.222.4623.463","issn":"00368075","usgsCitation":"Arvidson, R., Guinness, E., Moore, H., Tillman, J., and Wall, S.D., 1983, Three Mars years: Viking Lander 1 imaging observations: Science, v. 222, no. 4623, p. 463-468, https://doi.org/10.1126/science.222.4623.463.","productDescription":"6 p.","startPage":"463","endPage":"468","costCenters":[],"links":[{"id":222696,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"222","issue":"4623","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bb30fe4b08c986b325b63","contributors":{"authors":[{"text":"Arvidson, R. E.","contributorId":46666,"corporation":false,"usgs":true,"family":"Arvidson","given":"R. E.","affiliations":[],"preferred":false,"id":362698,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Guinness, E.A.","contributorId":78070,"corporation":false,"usgs":true,"family":"Guinness","given":"E.A.","email":"","affiliations":[],"preferred":false,"id":362701,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Moore, H. J.","contributorId":71962,"corporation":false,"usgs":true,"family":"Moore","given":"H. J.","affiliations":[],"preferred":false,"id":362700,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Tillman, J.","contributorId":61567,"corporation":false,"usgs":true,"family":"Tillman","given":"J.","email":"","affiliations":[],"preferred":false,"id":362699,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Wall, S. D.","contributorId":86468,"corporation":false,"usgs":false,"family":"Wall","given":"S.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":362702,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":1014376,"text":"1014376 - 1983 - Dietary requirements for essential branched-chain amino acids by lake trout","interactions":[],"lastModifiedDate":"2026-04-10T15:36:22.79274","indexId":"1014376","displayToPublicDate":"1983-11-01T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3624,"text":"Transactions of the American Fisheries Society","active":true,"publicationSubtype":{"id":10}},"title":"Dietary requirements for essential branched-chain amino acids by lake trout","docAbstract":"In a 12‐week growth study of the dietary requirements of young lake trout Salvelinus namaycush for essential branched‐chain amino acids, the leucine requirement was between 2.74 and 3.66%, and the isoleucine requirement between 1.54 and 2.06%, of dietary protein (as‐fed basis). These ranges are substantially lower than those published and widely used in formulation of salmonid feeds. On the basis of both growth criteria and concentration of free amino acids in blood plasma, the valine requirement was within the range of 1.77 to 2.23% of dietary protein. The upper value of this range is substantially lower than the requirement reported for chinook salmon Oncorhynchus tshawytscha. Plasma valine concentrations in lake trout responded to dietary supplements of valine above the requirement level; the concentrations increased sharply once the requirement was exceeded. This finding is similar to observations recorded in other animals.
","language":"English","publisher":"American Fisheries Society","doi":"10.1577/1548-8659(1983)112<812:DRFEBA>2.0.CO;2","usgsCitation":"Hughes, S.G., Rumsey, G.L., and Nesheim, M., 1983, Dietary requirements for essential branched-chain amino acids by lake trout: Transactions of the American Fisheries Society, v. 112, no. 6, p. 812-817, https://doi.org/10.1577/1548-8659(1983)112<812:DRFEBA>2.0.CO;2.","productDescription":"6 p.","startPage":"812","endPage":"817","costCenters":[{"id":365,"text":"Leetown Science Center","active":true,"usgs":true}],"links":[{"id":129689,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"112","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a9ae4b07f02db65d801","contributors":{"authors":[{"text":"Hughes, S. G.","contributorId":92200,"corporation":false,"usgs":true,"family":"Hughes","given":"S.","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":320281,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Rumsey, G. L.","contributorId":80604,"corporation":false,"usgs":true,"family":"Rumsey","given":"G.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":320280,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Nesheim, M.C.","contributorId":29357,"corporation":false,"usgs":true,"family":"Nesheim","given":"M.C.","email":"","affiliations":[],"preferred":false,"id":320279,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70012117,"text":"70012117 - 1983 - The relationship of joints and stream drainage in flat-lying rocks of south-central New York and northern Pennsylvania","interactions":[],"lastModifiedDate":"2026-03-19T16:16:39.563931","indexId":"70012117","displayToPublicDate":"1983-10-18T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3803,"text":"Zeitschrift fur Geomorphologie","active":true,"publicationSubtype":{"id":10}},"title":"The relationship of joints and stream drainage in flat-lying rocks of south-central New York and northern Pennsylvania","docAbstract":"Examination of the relationship of joints to stream development shows that the oft-cited development of streams parallel to joint directions does not, in general, apply in south-central New York and adjacent northern Pennsylvania. Streams whose courses are oblique to the joint directions (joint-oblique valleys) tend to erode easily owing to increased corrasion and subsequent undercutting at the upstream intersection of joints. The removal of joint-bounded blocks in joint-oblique valleys forms cascades that advance headward by apical erosion. Streams whose courses are parallel and perpendicular (joint-parallel valleys) to the nearly orthogonal joint sets erode by waterfall and plunge-pool formation; bedrock is undercut on the downstream side, and unstable blocks subsequently collapse into the plunge pool. Most valleys in the Finger Lakes region are joint-oblique, although some well-developed valleys are joint-parallel. These joint-parallel valleys are usually due to (1) a single deep, pervasive joint whose presence acts as a barrier to lateral expansion of the stream, or (2) erosion along joint zones whose intense fracturing produces weak erosional resistance in the rocks.
","language":"English","publisher":"Schweizebart Science Publishers","doi":"10.1127/zfg/27/1983/375","issn":"03728854","usgsCitation":"Pohn, H., 1983, The relationship of joints and stream drainage in flat-lying rocks of south-central New York and northern Pennsylvania: Zeitschrift fur Geomorphologie, v. 27, no. 3, p. 375-384, https://doi.org/10.1127/zfg/27/1983/375.","productDescription":"10 p.","startPage":"375","endPage":"384","costCenters":[],"links":[{"id":222055,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"New York, Pennsylvania","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -77.83504095578868,\n 42.84806858869206\n ],\n [\n -77.83504095578868,\n 41.383399612905976\n ],\n [\n -74.98160962860936,\n 41.383399612905976\n ],\n [\n -74.98160962860936,\n 42.84806858869206\n ],\n [\n -77.83504095578868,\n 42.84806858869206\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"27","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505baf25e4b08c986b32459e","contributors":{"authors":[{"text":"Pohn, H. A.","contributorId":6912,"corporation":false,"usgs":true,"family":"Pohn","given":"H. A.","affiliations":[],"preferred":false,"id":362772,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70171540,"text":"70171540 - 1983 - Measuring water surface and streambed elevation changes with the acoustic velocity metering system","interactions":[],"lastModifiedDate":"2018-02-07T13:43:53","indexId":"70171540","displayToPublicDate":"1983-10-12T14:30:00","publicationYear":"1983","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":"Measuring water surface and streambed elevation changes with the acoustic velocity metering system","docAbstract":"Acoustic velocity metering systems used to measure the water velocity along a diagonal path across a stream can also be used to measure stage and streambed changes. Underwater acoustic transmissions reflected from the water surface can accurately measure depth above transducers. Similarly, signals reflected from the streambed can indicate streambed changes in the vicinity midway between transducers.
","language":"English","publisher":"American Geophysical Union","doi":"10.1029/WR019i005p01317","usgsCitation":"Laenen, A., 1983, Measuring water surface and streambed elevation changes with the acoustic velocity metering system: Water Resources Research, v. 19, no. 5, p. 1317-1322, https://doi.org/10.1029/WR019i005p01317.","productDescription":"6 p.","startPage":"1317","endPage":"1322","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":322098,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"19","issue":"5","noUsgsAuthors":false,"publicationDate":"2010-07-09","publicationStatus":"PW","scienceBaseUri":"575158b7e4b053f0edd03c70","contributors":{"authors":[{"text":"Laenen, Antonius","contributorId":107673,"corporation":false,"usgs":true,"family":"Laenen","given":"Antonius","email":"","affiliations":[],"preferred":false,"id":631704,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ]}