Paleogeographic implications of late Miocene lacustrine and nonmarine evaporite deposits in the Lake Mead region; immediate precursors to the Colorado River

Thick late Miocene nonmarine evaporite (mainly halite and gypsum) and related lacustrine limestone deposits compose the upper basin fill in half grabens within the Lake Mead region of the Basin and Range Province directly west of the Colorado Plateau in southern Nevada and northwestern Arizona. Regi...

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Veröffentlicht in:	Geosphere (Boulder, Colo.) Colo.), 2016-06, Vol.12 (3), p.721-767
Hauptverfasser:	Faulds, James E, Schreiber, B. Charlotte, Langenheim, Victoria E, Hinz, Nicholas H, Shaw, Thomas H, Heizler, Matthew T, Perkins, Michael E, El Tabakh, Mohamed, Kunk, Michael J
Format:	Artikel
Sprache:	eng
Schlagworte:	absolute age Ar/Ar Arizona Basin and Range Province Basins carbonate rocks Cenozoic chemically precipitated rocks chlorides Colorado River Deposition depositional environment Deposits electron probe data evaporites extension tectonics Freshwater geochemistry geophysical methods geophysical surveys gravity anomalies gravity methods gypsum halides halite igneous rocks lacustrine environment Lake Mead Lakes Limestone lithostratigraphy magnetic anomalies magnetic methods major elements Miocene Neogene Nevada North America northwestern Arizona paleogeography pyroclastics relative age Rivers Rock salt sedimentary rocks southern Nevada Stratigraphy Structural geology sulfates surveys tectonics tephrochronology Tertiary Texture United States upper Miocene volcanic rocks
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