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This data set maps and describes the geology of the San Bernardino Wash 7.5 minutequadrangle, Riverside County, southern California. The quadrangle, situated inJoshua Tree National Park in the eastern Transverse Ranges physiographic andstructural province, encompasses parts of the northwestern Eagle Mountains,east-central Pinto Basin, and eastern Pinto Mountains.The quadrangle is underlain by a basement terrane comprising metamorphosedProterozoic strata, Mesozoic plutonic rocks, and Jurassic and Mesozoic and (or)Cenozoic hypabyssal dikes. The basement terrane is capped by a widespread Tertiaryerosion surface preserved in remnants in the Pinto and Eagle Mountains and buriedbeneath Cenozoic deposits in Pinto Basin....
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This data set maps and describes the geology of thePorcupine Wash 7.5 minute quadrangle, Riverside County,southern California. The quadrangle, situated in JoshuaTree National Park in the eastern Transverse Rangesphysiographic and structural province, encompasses partsof the Hexie Mountains, Cottonwood Mountains, northernEagle Mountains, and south flank of Pinto Basin. It isunderlain by a basement terrane comprising Proterozoicmetamorphic rocks, Mesozoic plutonic rocks, and Mesozoicand Mesozoic or Cenozoic hypabyssal dikes. The basementterrane is capped by a widespread Tertiary erosionsurface preserved in remnants in the Eagle and CottonwoodMountains and buried beneath Cenozoic deposits in PintoBasin. Locally, Miocene...
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This data set maps and describes the geology of the Pinto Mountain 7.5 minutequadrangle, Riverside County, southern California. The quadrangle, situated inJoshua Tree National Park in the eastern Transverse Ranges physiographic andstructural province, encompasses parts of the northeastern Hexie Mountains,central Pinto Mountains, and central Pinto Basin.The quadrangle is underlain by a basement terrane comprising Proterozoicmetamorphic rocks, Mesozoic plutonic rocks, and Mesozoic and Mesozoic and (or)Cenozoic hypabyssal dikes. The basement terrane is capped by a widespreadTertiary erosion surface preserved in remnants in the Hexie and Pinto Mountainsand buried beneath Cenozoic deposits in Pinto Basin. Locally, a...
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In 2012, the State of Alaska established its Strategic and Critical Minerals (SCM) Assessment project, a State-funded Capital Improvement Project (CIP), to evaluate Alaska's statewide potential for SCM resources. The project is being implemented by the Alaska Division of Geological & Geophysical Surveys (DGGS), and involves obtaining new airborne-geophysical, geological, and geochemical data. For decades, the Ray Mountains area of west-central Alaska has been explored for its potential mineral resources. To further assess the rare-earth-element (REE) potential of the State-selected and top-filed lands in the Ray Mountains area, mineral-resource geologists at DGGS carried out a helicopter-supported geological and...
Tags: Base Metals, Batholith, Bedrock, Bettles Quadrangle, Cerium, All tags...
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Mineral-resources personnel from the Alaska Division of Geological & Geophysical Surveys (DGGS) carried out a helicopter-supported geological and geochemical resource assessment project in the Beaver, Bettles, Livengood, and Tanana quadrangles from June 23 through August 5, 2012. The objectives of DGGS's resource assessment are to improve the trace-element geochemical coverage of selected watersheds; to obtain modern, quantitative geochemical analyses; to understand the petrogenesis of the granites; and to better document established mineral occurrences. Stream-sediment, pan-concentrate, and rock sampling were conducted as part of the State's Rare Earth Elements and Strategic Minerals Assessment project, which is...
Tags: Aluminum, Antimony, Arsenic, Augen Gneiss, Barium, All tags...
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This data set maps and describes the geology of the ConejoWell 7.5 minute quadrangle, Riverside County, southernCalifornia. The quadrangle, situated in Joshua TreeNational Park in the eastern Transverse Rangesphysiographic and structural province, encompasses part ofthe northern Eagle Mountains and part of the south flankof Pinto Basin. It is underlain by a basement terranecomprising Proterozoic metamorphic rocks, Mesozoicplutonic rocks, and Mesozoic and Mesozoic or Cenozoichypabyssal dikes. The basement terrane is capped by awidespread Tertiary erosion surface preserved in remnantsin the Eagle Mountains and buried beneath Cenozoicdeposits in Pinto Basin. Locally, Miocene basalt overliesthe erosion surface. A sequence...


    map background search result map search result map Geologic map and digital database of the Porcupine Wash 7.5minute quadrangle, Riverside County, California Geologic map and digital database of the Conejo Well 7.5minute quadrangle, Riverside County, California Geologic map and digital database of the Pinto Mountain 7.5minute quadrangle, Riverside County, California Geologic map and digital database of the San Bernardino Wash7.5 minute quadrangle, Riverside County, California Geochemical major-oxide, minor-oxide, trace-element, and rare-earth-element data from rocks and streams sediments collected in 2012 in the Ray Mountains area, Beaver, Bettles, Livengood, and Tanana quadrangles, Alaska Geochemical major-oxide, minor-oxide, trace-element, and rare-earth-element data from rock samples collected in 2013 in the Ray Mountains area, Bettles A-1 and A-6 quadrangles, Alaska Geochemical major-oxide, minor-oxide, trace-element, and rare-earth-element data from rock samples collected in 2013 in the Ray Mountains area, Bettles A-1 and A-6 quadrangles, Alaska Geochemical major-oxide, minor-oxide, trace-element, and rare-earth-element data from rocks and streams sediments collected in 2012 in the Ray Mountains area, Beaver, Bettles, Livengood, and Tanana quadrangles, Alaska