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This information contains a collection of Borehole Maps and Logs for the Garden State Parkway, New Jersey Turnpike, Interstate 78, and Proposed Rt. 101 during the pre-construction engineering work.
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This geologic map and preliminary cross sections of central and east Anchorage, Alaska, are based on previous mapping, limited new photointerpretation, and available subsurface data. Using PC-based Geographic Information System (GIS) software, the existing geologic map has been updated and simplified by adding recent fill deposits and combining units of similar genesis, composition, and age that are also recognizable in the subsurface. The GIS database consists of a USGS geologic map and over 4,000 geotechnical boreholes and water-well logs provided by numerous public and private sources. Geologic cross sections were developed by using GIS to project graphic lithologic logs into scaled vertical layouts along selected...
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The U.S. Geological Survey (USGS) in cooperation with the California State Water Resources Control Board (SWRCB) compiled and digitized mud logs from oil and gas wells in the Oxnard Oil Field area. Scanned copies of the mud logs were downloaded from the California Geologic Energy Management Division (CalGEM) online data and were digitized. Thirteen available mud logs associated with the Pliocene Tar Sand pool code (Vaca Tar Sand) were digitized. Mud-logging technology (mud logs) allows for identification and relative concentration measurement in parts per million by volume (ppmv) of light hydrocarbon gases (methane through pentane) occurring in drilling mud returned to the surface throughout the drilling process...
    map background search result map search result map Simplified Geologic Map and Cross Sections of Central and East Anchorage, Alaska Mud logs from the Oxnard Oil Field, Ventura County, California Collection of Borehole Maps and Logs for the Garden State Parkway, New Jersey Turnpike, Interstate 78, and Proposed Rt. 101 Mud logs from the Oxnard Oil Field, Ventura County, California Simplified Geologic Map and Cross Sections of Central and East Anchorage, Alaska Collection of Borehole Maps and Logs for the Garden State Parkway, New Jersey Turnpike, Interstate 78, and Proposed Rt. 101