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,{"id":13461,"text":"ofr6985 - 1970 - HYPOLAYR, a computer program for determining hypocenters of local earthquakes in an earth consisting of uniform flat layers over a half space","interactions":[],"lastModifiedDate":"2012-02-02T00:06:43","indexId":"ofr6985","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1970","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":"69-85","title":"HYPOLAYR, a computer program for determining hypocenters of local earthquakes in an earth consisting of uniform flat layers over a half space","language":"ENGLISH","publisher":"U.S. Geological Survey,","doi":"10.3133/ofr6985","usgsCitation":"Eaton, J.P., 1970, HYPOLAYR, a computer program for determining hypocenters of local earthquakes in an earth consisting of uniform flat layers over a half space: U.S. Geological Survey Open-File Report 69-85, 155 p. ill. ;27 cm., https://doi.org/10.3133/ofr6985.","productDescription":"155 p. ill. ;27 cm.","costCenters":[],"links":[{"id":145446,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1969/0085/report-thumb.jpg"},{"id":41901,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1969/0085/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4aefe4b07f02db691412","contributors":{"authors":[{"text":"Eaton, Jerry P.","contributorId":22341,"corporation":false,"usgs":true,"family":"Eaton","given":"Jerry","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":167839,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":15318,"text":"ofr70252 - 1970 - Sulfide minerals in the G and H chromatite zones of the Stillwater Complex, Montana","interactions":[{"subject":{"id":15318,"text":"ofr70252 - 1970 - Sulfide minerals in the G and H chromatite zones of the Stillwater Complex, Montana","indexId":"ofr70252","publicationYear":"1970","noYear":false,"title":"Sulfide minerals in the G and H chromatite zones of the Stillwater Complex, Montana"},"predicate":"SUPERSEDED_BY","object":{"id":6271,"text":"pp1038 - 1979 - Stillwater Complex, Montana— Structure, mineralogy, and petrology of the basal zone with emphasis on the occurrence of sulfides","indexId":"pp1038","publicationYear":"1979","noYear":false,"title":"Stillwater Complex, Montana— Structure, mineralogy, and petrology of the basal zone with emphasis on the occurrence of sulfides"},"id":1}],"supersededBy":{"id":6271,"text":"pp1038 - 1979 - Stillwater Complex, Montana— Structure, mineralogy, and petrology of the basal zone with emphasis on the occurrence of sulfides","indexId":"pp1038","publicationYear":"1979","noYear":false,"title":"Stillwater Complex, Montana— Structure, mineralogy, and petrology of the basal zone with emphasis on the occurrence of sulfides"},"lastModifiedDate":"2012-02-02T00:06:47","indexId":"ofr70252","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1970","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":"70-252","title":"Sulfide minerals in the G and H chromatite zones of the Stillwater Complex, Montana","language":"ENGLISH","publisher":"U.S. Geological Survey],","doi":"10.3133/ofr70252","usgsCitation":"Page, N.J., 1970, Sulfide minerals in the G and H chromatite zones of the Stillwater Complex, Montana: U.S. Geological Survey Open-File Report 70-252, 69 p. ill., maps ;27 cm., https://doi.org/10.3133/ofr70252.","productDescription":"69 p. ill., maps ;27 cm.","costCenters":[],"links":[{"id":146436,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b05e4b07f02db699888","contributors":{"authors":[{"text":"Page, Norman J.","contributorId":46492,"corporation":false,"usgs":true,"family":"Page","given":"Norman","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":170950,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":13941,"text":"ofr71140 - 1970 - Geologic evaluation of 3-5 micrometer infrared imagery and color photography in southern Utah","interactions":[],"lastModifiedDate":"2026-04-22T15:41:28.025693","indexId":"ofr71140","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1970","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":"71-140","title":"Geologic evaluation of 3-5 micrometer infrared imagery and color photography in southern Utah","docAbstract":"<p>A comparison of 3-5 micrometer, afternoon and midnight infrared (IR) imagery and color photography with conventional aerial photography shows that IR imagery and color photography have some unique capabilities. In general, the IR imagery provides in shades of gray a record of the relative ground temperature at the time the image was taken. It has day or night capabilities for imaging large areas of terrain. In sparsely vegetated areas, midnight IR imagery shows some tonal variations that may be relate to specific rock type based on temperature differences. In heavily vegetated areas, any temperature difference that might exist between rock units is masked by the temperature difference associated with different vegetation communities; although, isolated outcrops in such areas are generally apparent because they are brighter (warmer) on the afternoon IR. On the midnight IR they may or may not be brighter according to their differences in thermal inertia. The afternoon IR image showed one fault that was not visible on the aerial photographs. In contrast, only some of the faults visible in the stereoscopic model were recognized on the IR imagery. The interpreter using IR imagery must be aware of changes in heat patterns resulting from modification of the land by man and from the effect of cloud shadows. Apparent anomalies on IR image resulting from such factors might be misinterpreted. Compared to conventional photography with the added ability of stereoscopic viewing the day and night IR provided less geologic information in the area of study. IR imagery may be useful in hydrologic studies such as the relative temperatures of alpine lakes, ponds, and marshes during the night. and day. It should prove valuable in ecological studies involving the relative temperatures of different plant communities. Roads in heavily wooded areas are easier to see on the IR image, than on conventional photography because of their temperature differences.</p><p>Color photography, as might be expected, shows the terrain in a close approximation to its natural color, and delineates some stratigraphic units and rock alterations that are indistinguishable on black and white photography.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr71140","usgsCitation":"Hackman, R., and Williams, P., 1970, Geologic evaluation of 3-5 micrometer infrared imagery and color photography in southern Utah: U.S. Geological Survey Open-File Report 71-140, iii, 43 leaves :ill., maps ;27 cm., https://doi.org/10.3133/ofr71140.","productDescription":"iii, 43 p.","costCenters":[],"links":[{"id":503306,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1971/0140/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":147079,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1971/0140/report-thumb.jpg"}],"country":"United States","state":"Utah","geographicExtents":"{\"type\":\"FeatureCollection\",\"features\":[{\"type\":\"Feature\",\"id\":\"47\",\"properties\":{\"name\":\"Utah\",\"nation\":\"USA  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,{"id":23212,"text":"ofr70138 - 1970 - Report on field trip to Wadi Bidah and Ablah areas, Saudi Arabia","interactions":[],"lastModifiedDate":"2026-01-08T17:22:47.983494","indexId":"ofr70138","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1970","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":"70-138","title":"Report on field trip to Wadi Bidah and Ablah areas, Saudi Arabia","docAbstract":"<p>The Mulgatah ancient workings were briefly examined and two samples of alluvium were taken from the wadi that drains these workings. In Wadi Bidah, near gossan outcrops at the Rabathan prospects, another wadi sample was taken. In the Abla Formation area, seven wadi samples were taken and these samples as well as the ones described above were treated in the sluice. Accompanying this report is a drainage map of the Ablah area which shows where the samples were taken. Two tables give a brief description of the samples and show their tenor in detrital gold and silver.&nbsp;</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr70138","issn":"0094-9140","usgsCitation":"Gonzalez, L., 1970, Report on field trip to Wadi Bidah and Ablah areas, Saudi Arabia: U.S. Geological Survey Open-File Report 70-138, 9 p., https://doi.org/10.3133/ofr70138.","productDescription":"9 p.","costCenters":[],"links":[{"id":154481,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1970/0138/report-thumb.jpg"},{"id":498427,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1970/0138/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"Saudi Arabia","otherGeospatial":"Ablah, Wadi Bidah","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -120.1569003387927,\n              42.19240723701009\n            ],\n            [\n              -120.10749572008328,\n              38.838079005221346\n            ],\n            [\n              -114.92237135508793,\n              34.88069804889223\n            ],\n            [\n              -114.98297993586107,\n              31.350750228533002\n            ],\n            [\n              -108.86155573128843,\n              31.164630024551755\n            ],\n            [\n              -108.78553410798668,\n              37.13467902221349\n            ],\n            [\n              -113.85445865369462,\n              37.17625160026044\n            ],\n            [\n              -113.88260270021135,\n              42.186786176024185\n            ],\n            [\n              -120.1569003387927,\n              42.19240723701009\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    },\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              42.32738784712694,\n              15.512723400556823\n            ],\n            [\n              55.46938659113218,\n              19.579159163878117\n            ],\n            [\n              56.089387644546775,\n              21.93229208405711\n            ],\n            [\n              48.656849713663576,\n              28.702737353396188\n            ],\n            [\n              39.424873163889,\n              32.90306864705684\n            ],\n            [\n              33.20660131965218,\n              29.600711506057223\n            ],\n            [\n              42.32738784712694,\n              15.512723400556823\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","publicComments":"(IR)SA 85","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a59e4b07f02db62f698","contributors":{"authors":[{"text":"Gonzalez, Louis","contributorId":36936,"corporation":false,"usgs":true,"family":"Gonzalez","given":"Louis","email":"","affiliations":[],"preferred":false,"id":189642,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":47968,"text":"ofr71235 - 1970 - Sedimentation in Third Creek Subwatershed No. 7A, North Carolina","interactions":[],"lastModifiedDate":"2016-12-14T09:25:04","indexId":"ofr71235","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1970","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":"71-235","title":"Sedimentation in Third Creek Subwatershed No. 7A, North Carolina","language":"ENGLISH","doi":"10.3133/ofr71235","usgsCitation":"Reeder, H.E., 1970, Sedimentation in Third Creek Subwatershed No. 7A, North Carolina: U.S. Geological Survey Open-File Report 71-235, 31 p. ill., map ; 28 cm., https://doi.org/10.3133/ofr71235.","productDescription":"31 p. ill., map ; 28 cm.","costCenters":[{"id":13634,"text":"South Atlantic Water Science 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,{"id":47117,"text":"ofr70277 - 1970 - Geologic map of the Conconully quadrangle, Okanogan County, Washington","interactions":[{"subject":{"id":47117,"text":"ofr70277 - 1970 - Geologic map of the Conconully quadrangle, Okanogan County, Washington","indexId":"ofr70277","publicationYear":"1970","noYear":false,"title":"Geologic map of the Conconully quadrangle, Okanogan County, Washington"},"predicate":"SUPERSEDED_BY","object":{"id":35635,"text":"b1402 - 1976 - Bedrock geology of the Conconully Quadrangle, Okanogan County, Washington","indexId":"b1402","publicationYear":"1976","noYear":false,"title":"Bedrock geology of the Conconully Quadrangle, Okanogan County, Washington"},"id":1}],"supersededBy":{"id":35635,"text":"b1402 - 1976 - Bedrock geology of the Conconully Quadrangle, Okanogan County, Washington","indexId":"b1402","publicationYear":"1976","noYear":false,"title":"Bedrock geology of the Conconully Quadrangle, Okanogan County, Washington"},"lastModifiedDate":"2012-02-02T00:04:54","indexId":"ofr70277","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1970","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":"70-277","title":"Geologic map of the Conconully quadrangle, Okanogan County, Washington","language":"ENGLISH","doi":"10.3133/ofr70277","usgsCitation":"Rinehart, C.D., and Fox, K.F., 1970, Geologic map of the Conconully quadrangle, Okanogan County, Washington: U.S. Geological Survey Open-File Report 70-277, 1 map + 2 data sheets, https://doi.org/10.3133/ofr70277.","productDescription":"1 map + 2 data sheets","costCenters":[],"links":[{"id":106481,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_8507.htm","linkFileType":{"id":5,"text":"html"},"description":"8507"},{"id":135139,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"scale":"48000","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b08e4b07f02db69b81b","contributors":{"authors":[{"text":"Rinehart, C. Dean","contributorId":88326,"corporation":false,"usgs":true,"family":"Rinehart","given":"C.","email":"","middleInitial":"Dean","affiliations":[],"preferred":false,"id":234664,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Fox, Kenneth F. Jr.","contributorId":82269,"corporation":false,"usgs":true,"family":"Fox","given":"Kenneth","suffix":"Jr.","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":234663,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
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,{"id":47964,"text":"ofr71228 - 1970 - Approximate optimum yield of the glacial outwash aquifer between Sioux Falls and Dell Rapids, South Dakota","interactions":[],"lastModifiedDate":"2017-10-15T12:43:56","indexId":"ofr71228","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1970","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":"71-228","title":"Approximate optimum yield of the glacial outwash aquifer between Sioux Falls and Dell Rapids, South Dakota","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr71228","usgsCitation":"Powell, J., and Jorgensen, D.G., 1970, Approximate optimum yield of the glacial outwash aquifer between Sioux Falls and Dell Rapids, South Dakota: U.S. Geological Survey Open-File Report 71-228, 9 p., https://doi.org/10.3133/ofr71228.","productDescription":"9 p.","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":562,"text":"South Dakota Water Science Center","active":true,"usgs":true},{"id":34685,"text":"Dakota Water Science Center","active":true,"usgs":true}],"links":[{"id":170075,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"country":"United States","state":"South Dakota","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ac6e4b07f02db67a1a0","contributors":{"authors":[{"text":"Powell, J.E.","contributorId":27030,"corporation":false,"usgs":true,"family":"Powell","given":"J.E.","email":"","affiliations":[],"preferred":false,"id":236593,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Jorgensen, D. G.","contributorId":104527,"corporation":false,"usgs":true,"family":"Jorgensen","given":"D.","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":236594,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":18474,"text":"ofr7064 - 1970 - Paleozoic and Precambrian rocks of Alaska and their role in its structural evolution","interactions":[{"subject":{"id":18474,"text":"ofr7064 - 1970 - Paleozoic and Precambrian rocks of Alaska and their role in its structural evolution","indexId":"ofr7064","publicationYear":"1970","noYear":false,"title":"Paleozoic and Precambrian rocks of Alaska and their role in its structural evolution"},"predicate":"SUPERSEDED_BY","object":{"id":5783,"text":"pp740 - 1973 - Paleozoic and Precambrian rocks of Alaska and their role in its structural evolution","indexId":"pp740","publicationYear":"1973","noYear":false,"title":"Paleozoic and Precambrian rocks of Alaska and their role in its structural evolution"},"id":1}],"supersededBy":{"id":5783,"text":"pp740 - 1973 - Paleozoic and Precambrian rocks of Alaska and their role in its structural evolution","indexId":"pp740","publicationYear":"1973","noYear":false,"title":"Paleozoic and Precambrian rocks of Alaska and their role in its structural evolution"},"lastModifiedDate":"2023-12-04T22:05:58.700542","indexId":"ofr7064","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1970","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":"70-64","title":"Paleozoic and Precambrian rocks of Alaska and their role in its structural evolution","docAbstract":"<p>Acknowledging that there are large gaps in the knowledge of the geology of Alaska, the following threefold subdivision of Alaska into Paleozoic tectonic elements is proposed: Southern Alaska--the Alaska Range and farther south--is the northern end of the Paleozoic Cordilleran geosyncline that rims the eastern Pacific. Northern Alaska--the northeastern Brooks Range and the Arctic Coastal Plain--is underlain by a pre-Upper Devonian fold belt that may continue around the rim of the Canada Basin into the Franklinian geosyncline of the Canadian Arctic Islands. 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,{"id":20171,"text":"ofr70229 - 1970 - Estimates of the mechanical properties of lunar surface using tracks and secondary impact craters produced by blocks and boulders","interactions":[],"lastModifiedDate":"2026-01-12T14:40:48.517304","indexId":"ofr70229","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1970","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":"70-229","title":"Estimates of the mechanical properties of lunar surface using tracks and secondary impact craters produced by blocks and boulders","docAbstract":"<p>Estimates of bearing capacities of lunar surfaces using tracks and secondary impact craters produced by blocks and boulders shown in photographs taken by Lunar Orbiters II and III are the same order of magnitude as those reported by the Surveyor project, but they are generally less.&nbsp;</p><p>Static analyses of 48 lunar blocks and boulders and their tracks yield friction angles between 10° and 30° and averaging about 17°. These values were computed using: (1) Terzaghi's bearing capacity equations for circular footings, (2) Meyerhof's dimensionless numbers for general shear on level surfaces, (3) a cohesion of 10<sup>3</sup> dynes per cm<sup>2</sup>, (4) a density of 1.35 gm per cm<sup>3</sup> for the near surface materials, (5) a density of 2.7 gm per cm<sup>3</sup> for the block or boulder, (6) spheroidal (triaxial) boulders unless definite shapes can be established, (7) footing radii equal to the half-width of the block or boulder, the half-width of the track, and(or) the half-width of the shadow near the base of the block or boulder.</p><p>For 115 secondary impact craters and their corresponding blocks, dynamic strengths are estimated using: (1) the product of one-half the mass per unit area of the block and the normal component of velocity squared divided by the crater depth, and (2) the ratio of the kinetic energy of the block and the volume of the secondary crater. Velocities of the blocks are calculated using a ballistics equation and assuming an ejection angle of 45°. Block densities are taken as 2.7 gm per cm<sup>3</sup>. Dynamic strengths of the near surface materials using the first procedure average 25.2 x 10<sup>5</sup> dynes per cm<sup>2</sup> (37 psi); and, for the second procedure, they average 19.2 x 10<sup>5</sup> dynes per cm<sup>2</sup> (28 psi). Comparison between dynamic strengths and expected static strengths, computed for each block using the assumptions above, show that most of the dynamic strengths correspond to the static strengths when the friction angle is 30° and larger.&nbsp;</p><p>Data on experimental low velocity impacts with natural targets are compared with the lunar data on secondary impacts. Nara's modified Poncelet equation for sand yields an average angle of internal friction near 34° using the appropriate block and soil constants mentioned above.&nbsp;</p><p>Comparison of coefficients computed using the equations for sand of Clark and McCarty, Mortensen, and Moore for the lunar data with the corresponding constants for terrestrial data indicate the lunar coefficients are generally low. These low values can be brought into better agreement with terrestrial data on sand by increasing the assumed ejection angles to 60° or 70° and considering the effect of the low acceleration of gravity at the lunar surface.&nbsp;</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr70229","usgsCitation":"Moore, H., 1970, Estimates of the mechanical properties of lunar surface using tracks and secondary impact craters produced by blocks and boulders: U.S. Geological Survey Open-File Report 70-229, v, 65 p., https://doi.org/10.3133/ofr70229.","productDescription":"v, 65 p.","costCenters":[],"links":[{"id":152763,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1970/0229/report-thumb.jpg"},{"id":498538,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1970/0229/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a4be4b07f02db625829","contributors":{"authors":[{"text":"Moore, H. J.","contributorId":71962,"corporation":false,"usgs":true,"family":"Moore","given":"H. J.","affiliations":[],"preferred":false,"id":182190,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":43586,"text":"ofr70120 - 1970 - Geologic map, structure map, and sections of the Moxie pluton in the Moosehead Lake-Jo-Mary Mountain area, Maine","interactions":[{"subject":{"id":43586,"text":"ofr70120 - 1970 - Geologic map, structure map, and sections of the Moxie pluton in the Moosehead Lake-Jo-Mary Mountain area, Maine","indexId":"ofr70120","publicationYear":"1970","noYear":false,"title":"Geologic map, structure map, and sections of the Moxie pluton in the Moosehead Lake-Jo-Mary Mountain area, Maine"},"predicate":"SUPERSEDED_BY","object":{"id":34340,"text":"b1340 - 1972 - Geology of the Moxie pluton in the Moosehead Lake – Jo-Mary Mountain area, Piscataquis County, Maine","indexId":"b1340","publicationYear":"1972","noYear":false,"title":"Geology of the Moxie pluton in the Moosehead Lake – Jo-Mary Mountain area, Piscataquis County, Maine"},"id":1}],"supersededBy":{"id":34340,"text":"b1340 - 1972 - Geology of the Moxie pluton in the Moosehead Lake – Jo-Mary Mountain area, Piscataquis County, Maine","indexId":"b1340","publicationYear":"1972","noYear":false,"title":"Geology of the Moxie pluton in the Moosehead Lake – Jo-Mary Mountain area, Piscataquis County, Maine"},"lastModifiedDate":"2025-08-25T16:15:26.326337","indexId":"ofr70120","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1970","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":"70-120","title":"Geologic map, structure map, and sections of the Moxie pluton in the Moosehead Lake-Jo-Mary Mountain area, Maine","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr70120","usgsCitation":"Espenshade, G.H., 1970, Geologic map, structure map, and sections of the Moxie pluton in the Moosehead Lake-Jo-Mary Mountain area, Maine: U.S. Geological Survey Open-File Report 70-120, 7 Plates: 38.98 x 31.51 inches or smaller, https://doi.org/10.3133/ofr70120.","productDescription":"7 Plates: 38.98 x 31.51 inches or smaller","costCenters":[],"links":[{"id":494720,"rank":8,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1970/0120/plate-7.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":494719,"rank":7,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1970/0120/plate-6.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":494718,"rank":6,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1970/0120/plate-5.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":494717,"rank":5,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1970/0120/plate-4.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":494716,"rank":4,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1970/0120/plate-3.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":494715,"rank":3,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1970/0120/plate-2.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":494714,"rank":2,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1970/0120/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":169317,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1970/0120/report-thumb.jpg"}],"scale":"62500","country":"United 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