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The Quaternary Geologic Map of the Lake Erie 4� x 6� Quadranglewas mapped as part of the Quaternary Geologic Atlas of the United States.The atlas was begun as an effort to depict the areal distribution ofsurficial geologic deposits and other materials that accumulated orformed during the past 2+ million years, the period that includes allactivities of the human species. These materials are at the surface ofthe earth. They make up the "ground" on which we walk, the "dirt" inwhich we dig foundations, and the "soil" in which we grow crops. Mostof our human activity is related in one way or another to these surfacematerials that are referred to collectively by many geologists asregolith, the mantle of fragmental and...
Tags: 26011 = Arenac, 26017 = Bay, 26049 = Genesee, 26063 = Huron, 26087 = Lapeer, All tags...
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The Quaternary Geologic Map of the Winnipeg 4� � 6� DegreeQuadrangle, United States and Canada, is a component of the U.S.Geological Survey Quaternary Geologic Atlas of the United States mapseries (Miscellaneous Investigations Series I-1420), aneffort to produce 4� � 6� Quaternary geologic maps, at1:1 million scale, of the entire conterminous United States andadjacent Canada. The map and the accompanying text and supplementalillustrations provide a regional overview of theareal distributions and characteristics of surficial deposits andmaterials of Quaternary age (~1.8 Ma to present) in parts ofNorth Dakota, Minnesota, Manitoba, and Saskatchewan. The map is not amap of soils as soils are recognized in agriculture.Rather,...
Tags: 1100 - Geology, 1101 - General, 3100 - Vector, 3110 - ESRI, 3112 - export, All tags...
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The Alaska Division of Geological & Geophysical Surveys (DGGS), in partnership with the U.S. National Cooperative Geologic Mapping Program, mapped approximately 450 mi2 of the Talkeetna Mountains region of central Alaska at 1:50,000 scale over the course of six weeks in 2014. This area contains significant exposures of Late Triassic mafic volcanics and gabbro sills that have been the focus of region-wide exploration for the Strategic and Critical platinum-group elements (PGEs). The area also exposes numerous inactive and possibly active faults which project through the area of proposed hydropower development. The resulting geologic map offers an improved understanding of the geology, structural history, and mineral...
Tags: 40Ar/39Ar, Aerial Geology, Aerial Photography, Alluvial, Alluvial Deposits, All tags...
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The Quaternary Geologic Map of the Chicago 4� x 6� Quadranglewas mapped as part of the Quaternary Geologic Atlas of the United States.The atlas was begun as an effort to depict the areal distribution ofsurficial geologic deposits and other materials that accumulated orformed during the past 2+ million years, the period that includes allactivities of the human species. These materials are at the surface ofthe earth. They make up the "ground" on which we walk, the "dirt" inwhich we dig foundations, and the "soil" in which we grow crops. Mostof our human activity is related in one way or another to these surfacematerials that are referred to collectively by many geologists asregolith, the mantle of fragmental and generally...
Tags: 17007 = Boone, 17011 = Bureau, 17015 = Carroll, 17017 = Cass, 17019 = Champaign, All tags...
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During 2006 and 2007 the Alaska Division of Geological & Geophysical Surveys conducted reconnaissance surficial-geologic mapping in segment 1 of the Alaska Highway corridor, which straddles the Alaska Highway through the Tanana River valley from Delta Junction to the eastern boundary of the Mt. Hayes Quadrangle. Surficial-geologic deposits were initially mapped by interpreting ~1:63,360-scale, false-color infrared aerial photographs taken in August 1980 and field verified in 2006-2007.
Tags: Age Dates, Alaska Highway Corridor, Alluvial Deposits, Alluvial Fan, Alluvium, All tags...


    map background search result map search result map Quaternary Geologic Map of the Chicago 4� x 6� Quadrangle, United States Quaternary Geologic Map of the Lake Erie 4� x 6� Quadrangle,United States and Canada Quaternary geologic map of the Winnipeg 4� � 6� quadrangle, UnitedStates and Canada Surficial-geologic map, Alaska Highway corridor, Delta Junction to Dot Lake, Alaska Geologic map of the Talkeetna Mountains C-4 Quadrangle and adjoining areas, central Alaska Surficial geology of the Dalton Highway (Itkillik-Sagavanirktok rivers) area, southern Arctic foothills, Alaska Geologic map of the Talkeetna Mountains C-4 Quadrangle and adjoining areas, central Alaska Surficial geology of the Dalton Highway (Itkillik-Sagavanirktok rivers) area, southern Arctic foothills, Alaska Surficial-geologic map, Alaska Highway corridor, Delta Junction to Dot Lake, Alaska Quaternary Geologic Map of the Chicago 4� x 6� Quadrangle, United States Quaternary Geologic Map of the Lake Erie 4� x 6� Quadrangle,United States and Canada Quaternary geologic map of the Winnipeg 4� � 6� quadrangle, UnitedStates and Canada