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","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr68242","usgsCitation":"Scott, R., 1968, Availability of palynological material from Naval Petroleum Reserve No. 4, VI: South Barrow test well No. 3: U.S. Geological Survey Open-File Report 68-242, 9 p., https://doi.org/10.3133/ofr68242.","productDescription":"9 p.","costCenters":[],"links":[{"id":491629,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1968/0242/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":152073,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1968/0242/report-thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a9ae4b07f02db65d863","contributors":{"authors":[{"text":"Scott, Richard A.","contributorId":14414,"corporation":false,"usgs":true,"family":"Scott","given":"Richard A.","affiliations":[],"preferred":false,"id":183338,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":13513,"text":"ofr6897 - 1968 - The geologic classification of the meteorites","interactions":[],"lastModifiedDate":"2012-02-02T00:06:38","indexId":"ofr6897","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1968","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"68-97","title":"The geologic classification of the meteorites","docAbstract":"The meteorite classes of Prior and Mason are assigned to three proposed genetic groups on the basis of a combination of compositional, mineralogical, and elemental characteristics: l) the calcium-poor, volatile-rich carbonaceous chondrites and achondrites; 2) the calcium-poor, volatile-poor chondrites (enstatite, bronzite, hypersthene, and pigeonite), achondrites (enstatite, hypersthene, and pigeonite), stonyirons (pallasites, siderophyre), and irons; and, 3) the calcium-rich (basaltic) achondrites. Chondrites are correlated with calcium-poor achondrites and the silicate phase of the pallasitic meteorites on Fe contents of olivine and pyroxene; and with metal of the stony-irons and irons on the basis of trace elements (Ga and Ge). Transitions in structure and texture between the chondrites and achondrites are recognized. The Van Schmus-Wood chemical-petrologic classification of the chondrites has been modified and expanded to a mineralogic-petrologic classification of the chondrites and calcium-poor achondrites. \r\n\r\nChondrites apparently are the first rocks of the solar system. Paragenetic and textural relations in the Murray carbonaceous chondrite shed new light on the manner of accretion, and on the character of dispersed solid materials ('dust', and chondrules and metal) that existed in the solar system before accretion. \r\n\r\nTwo pre-accretionary mineral assemblages (components) are recognized in the carbonaceous chondrites and in the unequilibrated volatile-poor chondrites. They are: 1) a 'low temperature' water-, rare gas-, and carbon-bearing component; and, 2) a high temperature anhydrous silicate and metal component. Paragenetic relations indicate that component 2 materials predate chondrite formation. An accretionary assemblage (component 3) also is recognized in the carbonaceous chondrites and in the unequilibrated volatile-poor chondrites. Component 3 consists of very fine grains of olivine and pyroxene, which occur as pervasive disseminations, as small irregular aggregates of grains, and as large subround to round, finely granular accretional chondrules. \r\n\r\nEvidence in Murray indicates that component 3 silicates precipitated abruptly and at low pressures, possibly from a high temperature gas, in an environment that contained dispersed component 1 and 2 materials. All component 3 aggregates in Murray contain component 1 material, most commonly as flakes, and locally as tiny granules and larger spherules, some of which are hollow and some of which were broken prior to their mechanical incorporation in accretionary chondrules. Accretion may have occurred as ices associated with dispersed water-bearing component 1 materials temporarily melted during the precipitation of component 3 silicates, and then abruptly refroze to form an icy cementing material. Group 1 materials may be cometary, and group 2 materials may be asteroidal. Schematic models are proposed. \r\n\r\nEvidence is reviewed for the lunar origin of the pyroxeneplagioclase achondrites. On the basis of natural remanent magnetism, it is suggested that the very scarce diopside-olivine achondrites may be samples from Mars. A classification of the meteorite breccias, including the calcium-poor and calcium-rich mesosiderites, and irons that contain silicate fragments, is proposed. A fragmentation history of the meteorites is outlined on the basis of evidence in the polymict breccias, and from gas retention ages in stones and exposure ages in irons. Cometal impacts appear to have caused the initial fragmentation, stud possibly the perturbation of orbits, of two inferred asteroidal bodies (enstatite and bronzite), one and possibly both events occurring before 2000 m.y. ago. Several impacts apparently occurred on the inferred hypersthene body in the interval 1000 to 2000 m.y. ago. \r\n\r\nMajor breakups of the three bodies apparently occurred as the result of interasteroidal collisions at about 900 m.y. ago, and 600 to 700 m.y. ago. The breakups were followed by a number of fr","language":"ENGLISH","publisher":"U.S. Geological Survey],","doi":"10.3133/ofr6897","usgsCitation":"Elston, D.P., 1968, The geologic classification of the meteorites: U.S. Geological Survey Open-File Report 68-97, 271 p. ill. (some folded, some col.) ;30 cm., https://doi.org/10.3133/ofr6897.","productDescription":"271 p. ill. 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A.","contributorId":21577,"corporation":false,"usgs":true,"family":"Cobban","given":"W.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":220379,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":13708,"text":"ofr6998 - 1968 - Guide to Korean stratigraphic nomenclature","interactions":[],"lastModifiedDate":"2012-02-02T00:06:52","indexId":"ofr6998","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1968","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"69-98","title":"Guide to Korean stratigraphic nomenclature","language":"ENGLISH","publisher":"U.S. Geological Survey],","doi":"10.3133/ofr6998","usgsCitation":"Gallagher, D., 1968, Guide to Korean stratigraphic nomenclature: U.S. Geological Survey Open-File Report 69-98, 32 p. ill. ;27 cm., https://doi.org/10.3133/ofr6998.","productDescription":"32 p. ill. ;27 cm.","costCenters":[],"links":[{"id":147421,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a87e4b07f02db64e6b5","contributors":{"authors":[{"text":"Gallagher, David","contributorId":81919,"corporation":false,"usgs":true,"family":"Gallagher","given":"David","email":"","affiliations":[],"preferred":false,"id":168270,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":18290,"text":"ofr6827 - 1968 - Report on allanite occurrence near Hamdtha on Wadi Tathlith. Saudi Arabia","interactions":[],"lastModifiedDate":"2012-02-02T00:07:14","indexId":"ofr6827","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1968","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"68-27","title":"Report on allanite occurrence near Hamdtha on Wadi Tathlith. Saudi Arabia","language":"ENGLISH","publisher":"U.S. Geological Survey,","doi":"10.3133/ofr6827","usgsCitation":"Brown, G., 1968, Report on allanite occurrence near Hamdtha on Wadi Tathlith. Saudi Arabia: U.S. Geological Survey Open-File Report 68-27, 2 p. ill. ;28 cm., https://doi.org/10.3133/ofr6827.","productDescription":"2 p. ill. ;28 cm.","costCenters":[],"links":[{"id":149249,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a59e4b07f02db62f752","contributors":{"authors":[{"text":"Brown, Glen F.","contributorId":51711,"corporation":false,"usgs":true,"family":"Brown","given":"Glen F.","affiliations":[],"preferred":false,"id":178859,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":42732,"text":"ofr68333 - 1968 - Preliminary structure map of the Little Hickman Quadrangle, central Kentucky","interactions":[{"subject":{"id":42732,"text":"ofr68333 - 1968 - Preliminary structure map of the Little Hickman Quadrangle, central Kentucky","indexId":"ofr68333","publicationYear":"1968","noYear":false,"title":"Preliminary structure map of the Little Hickman Quadrangle, central Kentucky"},"predicate":"SUPERSEDED_BY","object":{"id":62089,"text":"gq792 - 1969 - Geologic map of the Little Hickman quadrangle, central Kentucky","indexId":"gq792","publicationYear":"1969","noYear":false,"title":"Geologic map of the Little Hickman quadrangle, central Kentucky"},"id":1}],"supersededBy":{"id":62089,"text":"gq792 - 1969 - Geologic map of the Little Hickman quadrangle, central Kentucky","indexId":"gq792","publicationYear":"1969","noYear":false,"title":"Geologic map of the Little Hickman quadrangle, central Kentucky"},"lastModifiedDate":"2024-03-27T18:11:56.429334","indexId":"ofr68333","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1968","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"68-333","title":"Preliminary structure map of the Little Hickman Quadrangle, central Kentucky","docAbstract":"No abstract available.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr68333","collaboration":"Prepared in cooperation with the Commonwealth of Kentucky, the University of Kentucky and the Kentucky Geological Survey","usgsCitation":"Wolcott, D.E., 1968, Preliminary structure map of the Little Hickman Quadrangle, central Kentucky: U.S. Geological Survey Open-File Report 68-333, 1 Plate: 23.53 x 29.76 inches, https://doi.org/10.3133/ofr68333.","productDescription":"1 Plate: 23.53 x 29.76 inches","costCenters":[],"links":[{"id":427167,"rank":2,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1968/0333/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":176382,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1968/0333/report-thumb.jpg"}],"scale":"24000","country":"United States","state":"Kentucky","otherGeospatial":"Little Hickman Quadrangle","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -84.61749999999999,37.75 ], [ -84.61749999999999,37.8675 ], [ -84.5,37.8675 ], [ -84.5,37.75 ], [ -84.61749999999999,37.75 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4aace4b07f02db66a599","contributors":{"authors":[{"text":"Wolcott, Don E.","contributorId":48154,"corporation":false,"usgs":true,"family":"Wolcott","given":"Don","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":227021,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":46693,"text":"ofr68259 - 1968 - Geologic map of the Wagon Wheel Gap fluorspar district, Colorado","interactions":[],"lastModifiedDate":"2012-02-02T00:10:46","indexId":"ofr68259","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1968","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"68-259","title":"Geologic map of the Wagon Wheel Gap fluorspar district, Colorado","language":"ENGLISH","doi":"10.3133/ofr68259","usgsCitation":"Steven, T.A., 1968, Geologic map of the Wagon Wheel Gap fluorspar district, Colorado: U.S. Geological Survey Open-File Report 68-259, 1 map+ explanation sheet, https://doi.org/10.3133/ofr68259.","productDescription":"1 map+ explanation sheet","costCenters":[],"links":[{"id":170679,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":83610,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1968/0259/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":83611,"rank":401,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1968/0259/plate-2.pdf","linkFileType":{"id":1,"text":"pdf"}}],"scale":"20000","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ae4e4b07f02db68a064","contributors":{"authors":[{"text":"Steven, T. A.","contributorId":42575,"corporation":false,"usgs":true,"family":"Steven","given":"T.","middleInitial":"A.","affiliations":[],"preferred":false,"id":233807,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":32637,"text":"pp594G - 1968 - Geology of the igneous rocks of the Spanish Peaks region, Colorado","interactions":[],"lastModifiedDate":"2025-05-21T19:13:29.849805","indexId":"pp594G","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1968","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":331,"text":"Professional Paper","code":"PP","onlineIssn":"2330-7102","printIssn":"1044-9612","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"594","chapter":"G","title":"Geology of the igneous rocks of the Spanish Peaks region, Colorado","docAbstract":"No abstract available.
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A1-A371, https://doi.org/10.3133/pp600A.","productDescription":"p. A1-A371","costCenters":[],"links":[{"id":119239,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/pp/0600a/report-thumb.jpg"},{"id":60530,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/pp/0600a/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"scale":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4adfe4b07f02db687803","contributors":{"authors":[{"text":"Water Resources Division, U.S. Geological Survey","contributorId":128075,"corporation":true,"usgs":false,"organization":"Water Resources Division, U.S. Geological Survey","id":529429,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":38978,"text":"pp433G - 1968 - Radioactive waste dilution in the Clinch River, eastern Tennessee","interactions":[],"lastModifiedDate":"2012-02-02T00:10:32","indexId":"pp433G","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1968","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":331,"text":"Professional Paper","code":"PP","onlineIssn":"2330-7102","printIssn":"1044-9612","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"433","chapter":"G","title":"Radioactive waste dilution in the Clinch River, eastern Tennessee","language":"ENGLISH","doi":"10.3133/pp433G","usgsCitation":"Carrigan, P., 1968, Radioactive waste dilution in the Clinch River, eastern Tennessee: U.S. Geological Survey Professional Paper 433, p. G1-G9, https://doi.org/10.3133/pp433G.","productDescription":"p. G1-G9","costCenters":[],"links":[{"id":122043,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/pp/0433g/report-thumb.jpg"},{"id":66082,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/pp/0433g/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a80e4b07f02db649d42","contributors":{"authors":[{"text":"Carrigan, P.H. Jr.","contributorId":21935,"corporation":false,"usgs":true,"family":"Carrigan","given":"P.H.","suffix":"Jr.","email":"","affiliations":[],"preferred":false,"id":220753,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":14038,"text":"ofr68122 - 1968 - Geology of the Golden Zone mine area, Alaska","interactions":[],"lastModifiedDate":"2025-09-25T20:51:34.846063","indexId":"ofr68122","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1968","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"68-122","title":"Geology of the Golden Zone mine area, Alaska","docAbstract":"The Golden Zone mine area, in the upper Chulitna district, is underlain mainly by siltstone and tuff, volcanic conglomerate and breccia, and limestone. These rocks were invaded, probably in the Tertiary, by dikes and a small stock of porphyry. The ore deposits of the area are the Golden Zone breccia pipe, a nearly vertical body about in the center of the porphyry stock, and steeply dipping veins. Most veins strike north to northeast and are commonly only 1-5 feet thick, but locally are as much as 15 feet thick. Both pipe and vein deposits are gold deposits of low to moderate grade that are characterized by abundant arsenopyrite; some contain possibly economic amounts of copper, lead and zinc minerals. Of the deposits of the mine area, only the Golden Zone has been explored to any extent, and both it and some of. the veins deserve further exploration to determine their potential.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr68122","usgsCitation":"Hawley, C.C., Clark, A.L., and Benfer, J.A., 1968, Geology of the Golden Zone mine area, Alaska: U.S. Geological Survey Open-File Report 68-122, Report: 18 p.; 1 Plate: 25.60 × 20.18 inches, https://doi.org/10.3133/ofr68122.","productDescription":"Report: 18 p.; 1 Plate: 25.60 × 20.18 inches","costCenters":[],"links":[{"id":496185,"rank":4,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_8250.htm","linkFileType":{"id":5,"text":"html"}},{"id":42692,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1968/0122/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":42691,"rank":3,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1968/0122/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":147063,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1968/0122/report-thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Golden Zone mine area","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -149.667,\n 63.225\n ],\n [\n -149.667,\n 63.202\n ],\n [\n -149.628,\n 63.202\n ],\n [\n -149.628,\n 63.225\n ],\n [\n -149.667,\n 63.225\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4acfe4b07f02db6801bd","contributors":{"authors":[{"text":"Hawley, C. 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H1-H46, https://doi.org/10.3133/pp341H.","productDescription":"p. H1-H46","costCenters":[],"links":[{"id":120269,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/pp/0341h/report-thumb.jpg"},{"id":66194,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/pp/0341h/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":66195,"rank":401,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/pp/0341h/plate-2.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":66196,"rank":402,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/pp/0341h/plate-3.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":66197,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/pp/0341h/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b32e4b07f02db6b4707","contributors":{"authors":[{"text":"Simmons, G. C.","contributorId":82737,"corporation":false,"usgs":true,"family":"Simmons","given":"G.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":220828,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":13510,"text":"ofr6896 - 1968 - Character and geologic habitat of potential deposits of water, carbon and rare gases on the moon","interactions":[],"lastModifiedDate":"2012-02-02T00:06:37","indexId":"ofr6896","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1968","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"68-96","title":"Character and geologic habitat of potential deposits of water, carbon and rare gases on the moon","language":"ENGLISH","doi":"10.3133/ofr6896","usgsCitation":"Elston, D.P., 1968, Character and geologic habitat of potential deposits of water, carbon and rare gases on the moon: U.S. Geological Survey Open-File Report 68-96, 25 p. ill., maps (some folded) ;27 cm., https://doi.org/10.3133/ofr6896.","productDescription":"25 p. ill., maps (some folded) ;27 cm.","costCenters":[],"links":[{"id":144629,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49e3e4b07f02db5e5919","contributors":{"authors":[{"text":"Elston, Donald Parker","contributorId":38150,"corporation":false,"usgs":true,"family":"Elston","given":"Donald","email":"","middleInitial":"Parker","affiliations":[],"preferred":false,"id":167919,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":65002,"text":"i544 - 1968 - Geologic map of the Zuni Salt Lake volcanic crater, Catron County, New Mexico","interactions":[],"lastModifiedDate":"2012-02-02T00:13:20","indexId":"i544","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1968","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":320,"text":"IMAP","code":"I","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"544","subseriesTitle":"NONE","title":"Geologic map of the Zuni Salt Lake volcanic crater, Catron County, New Mexico","language":"ENGLISH","doi":"10.3133/i544","usgsCitation":"Cummings, D., 1968, Geologic map of the Zuni Salt Lake volcanic crater, Catron County, New Mexico: U.S. Geological Survey IMAP 544, 1 map :col. ;59 x 51 cm., https://doi.org/10.3133/i544.","productDescription":"1 map :col. ;59 x 51 cm.","costCenters":[],"links":[{"id":102885,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_1352.htm","linkFileType":{"id":5,"text":"html"},"description":"1352"},{"id":190397,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"scale":"6000","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ae2e4b07f02db688e00","contributors":{"authors":[{"text":"Cummings, David","contributorId":50911,"corporation":false,"usgs":true,"family":"Cummings","given":"David","email":"","affiliations":[],"preferred":false,"id":272490,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":48203,"text":"ofr73278 - 1968 - Ground-water resources investigation program for the Kinshasa area, Democratic Republic of the Congo","interactions":[],"lastModifiedDate":"2012-02-02T00:10:38","indexId":"ofr73278","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1968","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"73-278","title":"Ground-water resources investigation program for the Kinshasa area, Democratic Republic of the Congo","language":"ENGLISH","doi":"10.3133/ofr73278","usgsCitation":"Tibbitts, G.C., 1968, Ground-water resources investigation program for the Kinshasa area, Democratic Republic of the Congo: U.S. Geological Survey Open-File Report 73-278, 43 p. ill. ; 27 cm., https://doi.org/10.3133/ofr73278.","productDescription":"43 p. ill. ; 27 cm.","costCenters":[],"links":[{"id":172396,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a9fe4b07f02db66103f","contributors":{"authors":[{"text":"Tibbitts, G. Chase Jr.","contributorId":30601,"corporation":false,"usgs":true,"family":"Tibbitts","given":"G.","suffix":"Jr.","email":"","middleInitial":"Chase","affiliations":[],"preferred":false,"id":236963,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":67070,"text":"i560 - 1968 - Geologic and structure contour map of the La Junta quadrangle, Colorado and Kansas","interactions":[],"lastModifiedDate":"2020-07-20T14:36:18.236078","indexId":"i560","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1968","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":320,"text":"IMAP","code":"I","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"560","title":"Geologic and structure contour map of the La Junta quadrangle, Colorado and Kansas","docAbstract":"No abstract available.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/i560","usgsCitation":"Scott, G., 1968, Geologic and structure contour map of the La Junta quadrangle, Colorado and Kansas: U.S. Geological Survey IMAP 560, HTML Document, https://doi.org/10.3133/i560.","productDescription":"HTML Document","costCenters":[],"links":[{"id":188142,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":106834,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_9348.htm","linkFileType":{"id":5,"text":"html"},"description":"9348"}],"scale":"24000","country":"United States","state":"Colorado, Kansas","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -104,37 ], [ -104,38 ], [ -102,38 ], [ -102,37 ], [ -104,37 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b1ae4b07f02db6a80e6","contributors":{"authors":[{"text":"Scott, Glenn R.","contributorId":33324,"corporation":false,"usgs":true,"family":"Scott","given":"Glenn R.","affiliations":[],"preferred":false,"id":275560,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":32657,"text":"pp516E - 1968 - A geophysical study in Grand Teton National Park and vicinity, Teton County, Wyoming","interactions":[],"lastModifiedDate":"2025-05-21T17:47:12.819568","indexId":"pp516E","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1968","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":331,"text":"Professional Paper","code":"PP","onlineIssn":"2330-7102","printIssn":"1044-9612","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"516","chapter":"E","title":"A geophysical study in Grand Teton National Park and vicinity, Teton County, Wyoming","docAbstract":"An integrated geophysical study - comprising gravity, seismic refraction, and aeromagnetic surveys - was made of a 4,600-km2 area in Grand Teton National Park and vicinity, Wyoming, for the purpose of obtaining a better understanding of the structural relationships in the region. The Teton range is largely comprised of Precambrian crystalline rocks and layered metasedimentary gneiss, but it also includes granitic gneiss, hornblende-plagioclase gneiss, granodiorite, and pegmatite and diabase dikes. Elsewhere, the sedimentary section is thick. The presence of each system except Silurian provides a chronological history of most structures. Uplift of the Teton-Gros Ventre area began in the Late Cretaceous; most of the uplift occurred after middle Eocene time. Additional uplift of the Teton Range and downfaulting of Jackson Hole began in the late Pliocene and continues to the present.
Bouguer anomalies range from -185 mgal over Precambrian rocks of the Teton Range to -240 mgal over low-density Tertiary and Cretaceous sedimentary rocks of Jackson Hole. The Teton fault (at the west edge of Jackson Hole), as shown by steep gravity gradients and seismic-refraction data, trends north-northeast away from the front of the Teton Range in the area of Jackson Lake. The Teton fault either is shallowly inclined in the Jenny Lake area, or it consists of a series of fault steps in the fault zone; it is approximately vertical in the Arizona Creek area.
Seismic-refraction data can be fitted well by a three-layer gravity model with velocities of 2.45 km per sec for the Tertiary and Cretaceous rocks above the Cloverly Formation, 3.9 km per sec for the lower Mesozoic rocks, and 6.1 km per sec for the Paleozoic (limestone and dolomite) and Precambrian rocks. Gravity models computed along two seismic profiles are in good agreement (σ=± 2 mgal) if density contrasts with the assumed 2.67 g per cm3 Paleozoic and Precambrian rocks are assumed to be -0.35 and -0.10 g per cm3 for the 2.45 and 3.9 km per sec velocity layers, respectively. The Teton Range has a maximum vertical uplift of about 7 km, as inferred from the maximum depth to basement of about 5 km.
Aeromagnetic data show a 400γ positive anomaly in the Gros Ventre Range, which trends out of the surveyed area at the east edge. Exposed Precambrian rocks contain concentrations of magnetite and hematite. A prominent anomaly of about 100γ is associated with the Gros Ventre Range, and 100γ anomalies are associated with the layered gneiss of the Teton Range. On this basis the unmapped Precambrian rocks of the Gross Ventre Range are interpreted as layered gneiss. The sources of the magnetic anomalies, as indicated by depth determination, are at the surface of the Precambrian rocks. A model fitted to a profile across the Gros Ventre Range gives a depth to the Precambrian surface and a susceptibility of 0.0004 emu (electromagnetic units) for the source, which is consistent with modal analyses of the layered gneisses. A residual magnetic map shows that the granitic rocks and layered gneiss probably continue beneath the floor of Jackson Hole east of the Teton fault. The location of aeromagnetic anomalies is consistent with the interpretation that the Teton fault diverges from the front of the Teton Range.
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