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Core Research Center, core B060, from well operated by MACEY & MERSHONRaw Properties from download, web scrape, MapServer, and Macrostrat API{"Lib Num": "B060", "API Num": "0512307257", "Operator": "MACEY & MERSHON", "Well Name": "1 SPRAGUE", "Field": "WATTENBURG", "State": "CO", "County": "WELD", "Type": "SLABBED", "Photos": "T", "Thin Sec": "F", "Analysis": "F", "Latitude": "40.148187", "Longitude": "-104.900024", "coordinates_geohash": "9xjkkuy0hk8b", "Source": "FROM STATE RECORDS", "Security Flag": "NO SPECIAL RESTRICTIONS", "crc_collection_name": "core", "sb_parent_id": "4f4e49dae4b07f02db5e0486", "intervals": [{"Formation": "SUSSEX", "Age": "CRET", "Min Depth": "4505", "Max Depth": "4557"}], "crcwc_url": "https://my.usgs.gov/crcwc/core/report/9133",...
Core Research Center, core S402, from well operated by NATOMAS NORTH AM INCRaw Properties from download, web scrape, MapServer, and Macrostrat API{"Lib Num": "S402", "API Num": "0512310195", "Operator": "NATOMAS NORTH AM INC", "Well Name": "1 SANDERS", "Field": "WILDCAT", "State": "CO", "County": "WELD", "Type": "SLABBED", "Photos": "F", "Thin Sec": "F", "Analysis": "F", "Latitude": "40.611601", "Longitude": "-104.942069", "coordinates_geohash": "9xjr5cpe8x1u", "Source": "FROM STATE RECORDS", "Security Flag": "NO SPECIAL RESTRICTIONS", "crc_collection_name": "core", "sb_parent_id": "4f4e49dae4b07f02db5e0486", "intervals": [{"Formation": "LYONS", "Age": "PER", "Min Depth": "8768", "Max Depth": "8823"}], "crcwc_url":...
Core Research Center, core A781, from well operated by AMOCO PRODUCTIONRaw Properties from download, web scrape, MapServer, and Macrostrat API{"Lib Num": "A781", "API Num": "0512308819", "Operator": "AMOCO PRODUCTION", "Well Name": "3 MLYENEK", "Field": "SPINDLE", "State": "CO", "County": "WELD", "Type": "SLABBED", "Photos": "T", "Thin Sec": "F", "Analysis": "T", "Latitude": "40.108147", "Longitude": "-105.005556", "coordinates_geohash": "9xjk4t3qchw2", "Source": "FROM STATE RECORDS", "Security Flag": "NO SPECIAL RESTRICTIONS", "crc_collection_name": "core", "sb_parent_id": "4f4e49dae4b07f02db5e0486", "intervals": [{"Formation": "SUSSEX", "Age": "CRET", "Min Depth": "4493", "Max Depth": "4550"}], "crcwc_url": "https://my.usgs.gov/crcwc/core/report/8650",...
Core Research Center, core T438, from well operated by MITCHELL ENERGYRaw Properties from download, web scrape, MapServer, and Macrostrat API{"Lib Num": "T438", "API Num": "1507520362", "Operator": "MITCHELL ENERGY", "Well Name": "1 KUYKENDALL", "Field": "PANOMA GAS AREA", "State": "KS", "County": "HAMILTON", "Type": "FULL", "Photos": "T", "Thin Sec": "F", "Analysis": "F", "Latitude": "38.246004", "Longitude": "-101.842366", "coordinates_geohash": "9wz9dd2xhggu", "Source": "FROM STATE RECORDS", "Security Flag": "NO SPECIAL RESTRICTIONS", "crc_collection_name": "core", "sb_parent_id": "4f4e49dae4b07f02db5e0486", "intervals": [{"Formation": "WINFIELD", "Age": "PERM", "Min Depth": "2720", "Max Depth": "2841"}], "crcwc_url":...
Core Research Center, core B012, from well operated by AMOCO PRODUCTIONRaw Properties from download, web scrape, MapServer, and Macrostrat API{"Lib Num": "B012", "API Num": "0512309285", "Operator": "AMOCO PRODUCTION", "Well Name": "E-4 ROCKY MOUNTAIN", "Field": "SPINDLE", "State": "CO", "County": "WELD", "Type": "SLABBED", "Photos": "T", "Thin Sec": "F", "Analysis": "T", "Latitude": "40.10396", "Longitude": "-104.92654", "coordinates_geohash": "9xjkhkdy6rvp", "Source": "FROM STATE RECORDS", "Security Flag": "NO SPECIAL RESTRICTIONS", "crc_collection_name": "core", "sb_parent_id": "4f4e49dae4b07f02db5e0486", "intervals": [{"Formation": "SUSSEX", "Age": "CRET", "Min Depth": "4570", "Max Depth": "4661"}], "crcwc_url":...
Core Research Center, core B304, from well operated by ANADARKO PRODUCTIONRaw Properties from download, web scrape, MapServer, and Macrostrat API{"Lib Num": "B304", "API Num": "1517520375", "Operator": "ANADARKO PRODUCTION", "Well Name": "A-4 FINCHAM", "Field": "SHUCK", "State": "KS", "County": "SEWARD", "Type": "SLABBED", "Photos": "T", "Thin Sec": "T", "Analysis": "F", "Latitude": "37.150156", "Longitude": "-101.033488", "coordinates_geohash": "9y85kfvxm550", "Source": "FROM STATE RECORDS", "Security Flag": "NO SPECIAL RESTRICTIONS", "crc_collection_name": "core", "sb_parent_id": "4f4e49dae4b07f02db5e0486", "intervals": [{"Formation": "CHESTER", "Age": "MISS", "Min Depth": "6234", "Max Depth": "6282"}], "crcwc_url":...
Core Research Center, cutting DZ02928, from well operated by UNITED PRODUCTSRaw Properties from download, web scrape, MapServer, and Macrostrat API{"Lib Num": "DZ02928", "API Num": "1507500004", "Operator": "UNITED PRODUCTS", "Well Name": "1 J.B. OWINGS", "Field": "WILDCAT ", "State": "KS", "County": "HAMILTON", "Thin Sec": "F", "Analysis": "F", "Latitude": "38.0606625", "Longitude": "-101.9791067", "coordinates_geohash": "9wz2x2tp6tdx", "Source": "FROM STATE RECORDS", "Min": "615", "Max": "5188", "Security Flag": null, "crc_collection_name": "cutting", "sb_parent_id": "4f4e49d8e4b07f02db5df2d2", "intervals": [{"Formation": null, "Age": null, "Min Depth": null, "Max Depth": null}], "crcwc_url": "https://my.usgs.gov/crcwc/cutting/report/33267",...
Core Research Center, core F101, from well operated by AMOCORaw Properties from download, web scrape, MapServer, and Macrostrat API{"Lib Num": "F101", "API Num": "0512308069", "Operator": "AMOCO", "Well Name": "9 SUCKLA BROWN", "Field": "SPINDLE", "State": "CO", "County": "WELD", "Type": "SLABBED", "Photos": "T", "Thin Sec": "F", "Analysis": "T", "Latitude": "40.067108", "Longitude": "-104.879292", "coordinates_geohash": "9xj7vmvpz679", "Source": "PROVIDED BY DONOR", "Security Flag": "NO SPECIAL RESTRICTIONS", "crc_collection_name": "core", "sb_parent_id": "4f4e49dae4b07f02db5e0486", "intervals": [{"Formation": "SUSSEX", "Age": "CRETACEOUS", "Min Depth": "4716", "Max Depth": "4768"}, {"Formation": "SUSSEX", "Age":...
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Temporal and spatial sources of silica for chert remain poorly constrained. Modern sources to the worlds oceans include silica in rivers > aeolian (dust) deposition > sea floor vents and submarine weathering. However, changes in aridity and dust flux during the Phanerozoic may explain variations in the ocean silica cycle and times and places of chert formation. The chemistry of fine quartz dust (FQD) provides a chemical mechanism for the transformation of FQD to polymorphs of silica in chert; FQD is readily dissolved, then reprecipitated as Opal-A by either biotic or abiotic processes. An unequivocal relation between increases in dust flux and biogenic opal-A in the western Pacific Ocean during the past 200 kyr...
Core Research Center, cutting DC03258, from well operated by CHAMPLINRaw Properties from download, web scrape, MapServer, and Macrostrat API{"Lib Num": "DC03258", "API Num": "0512309673", "Operator": "CHAMPLIN", "Well Name": "2 BOHLENDER 42-29", "Field": null, "State": "CO", "County": "WELD", "Thin Sec": "F", "Analysis": "F", "Latitude": "40.285146", "Longitude": "-104.680138", "coordinates_geohash": "9xjt1vwjzzx8", "Source": "FROM STATE RECORDS", "Min": "4300", "Max": "4856", "Security Flag": null, "crc_collection_name": "cutting", "sb_parent_id": "4f4e49d8e4b07f02db5df2d2", "intervals": [{"Formation": null, "Age": null, "Min Depth": null, "Max Depth": null}], "crcwc_url": "https://my.usgs.gov/crcwc/cutting/report/48159",...
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During 2009, the Alaska Division of Geological & Geophysical Surveys continued a program, begun in 2006, of reconnaissance mapping of surficial geology in the proposed natural-gas pipeline corridor through the upper Tanana River valley. The study area is a 12-mi-wide (19.3-km-wide) area that straddles the Alaska Highway from the western boundaries of the Tanacross B-3 and A-3 quadrangles near Tetlin Junction eastward to the eastern boundaries of the Nabesna D-1 and C-1 quadrangles along the Canada border. Mapping during 2008-2009 in the Tanacross and Nabesna quadrangles linked with the mapping completed in the Tanacross, Big Delta and Mt. Hayes quadrangles in 2006-2008. Surficial geology was initially mapped in...
Core Research Center, core B099, from well operated by AMOCO PRODUCTIONRaw Properties from download, web scrape, MapServer, and Macrostrat API{"Lib Num": "B099", "API Num": "1505520274", "Operator": "AMOCO PRODUCTION", "Well Name": "1 CONGDON", "Field": "CONGDON", "State": "KS", "County": "FINNEY", "Type": "SLABBED", "Photos": "T", "Thin Sec": "T", "Analysis": "F", "Latitude": "38.020154", "Longitude": "-100.844846", "coordinates_geohash": "9yb231r52y2s", "Source": "FROM STATE RECORDS", "Security Flag": "NO SPECIAL RESTRICTIONS", "crc_collection_name": "core", "sb_parent_id": "4f4e49dae4b07f02db5e0486", "intervals": [{"Formation": "ST LOUIS", "Age": "MISS", "Min Depth": "4750", "Max Depth": "4840"}], "crcwc_url":...
Core Research Center, core S141, from well operated by TEXAS AMERICAN OILRaw Properties from download, web scrape, MapServer, and Macrostrat API{"Lib Num": "S141", "API Num": "0500107678", "Operator": "TEXAS AMERICAN OIL", "Well Name": "15 JOHN EHLER", "Field": "SPINDLE", "State": "CO", "County": "ADAMS", "Type": "FULL", "Photos": "F", "Thin Sec": "F", "Analysis": "T", "Latitude": "39.963149", "Longitude": "-104.867741", "coordinates_geohash": "9xj7mejdhwbv", "Source": "FROM STATE RECORDS", "Security Flag": "NO SPECIAL RESTRICTIONS", "crc_collection_name": "core", "sb_parent_id": "4f4e49dae4b07f02db5e0486", "intervals": [{"Formation": "SUSSEX", "Age": "CRET", "Min Depth": "5042", "Max Depth": "5075"}], "crcwc_url":...
Core Research Center, cutting DC02122, from well operated by H P MCLISH-PETAN CORaw Properties from download, web scrape, MapServer, and Macrostrat API{"Lib Num": "DC02122", "API Num": "1513700272", "Operator": "H P MCLISH-PETAN CO", "Well Name": "1 MILLER", "Field": "WILDCAT ", "State": "KS", "County": "NORTON", "Thin Sec": "F", "Analysis": "F", "Latitude": "39.8367662", "Longitude": "-100.0696496", "coordinates_geohash": "9z0fdu59bpmn", "Source": "FROM STATE RECORDS", "Min": "3100", "Max": "3725", "Security Flag": null, "crc_collection_name": "cutting", "sb_parent_id": "4f4e49d8e4b07f02db5df2d2", "intervals": [{"Formation": null, "Age": null, "Min Depth": null, "Max Depth": null}], "crcwc_url": "https://my.usgs.gov/crcwc/cutting/report/46015",...
Core Research Center, core R273, from well operated by ANADARKO PRODUCTIONRaw Properties from download, web scrape, MapServer, and Macrostrat API{"Lib Num": "R273", "API Num": "1517520482", "Operator": "ANADARKO PRODUCTION", "Well Name": "A-1 REEVER", "Field": "WIDE AWAKE", "State": "KS", "County": "SEWARD", "Type": "SLABBED", "Photos": "F", "Thin Sec": "T", "Analysis": "F", "Latitude": "37.131916", "Longitude": "-101.043075", "coordinates_geohash": "9y85hxwtjdy6", "Source": "FROM STATE RECORDS", "Security Flag": "NO SPECIAL RESTRICTIONS", "crc_collection_name": "core", "sb_parent_id": "4f4e49dae4b07f02db5e0486", "intervals": [{"Formation": "CHESTER", "Age": "MISS", "Min Depth": "6360", "Max Depth": "6406"}], "crcwc_url":...
Core Research Center, core C506, from well operated by LADD PETROLEUMRaw Properties from download, web scrape, MapServer, and Macrostrat API{"Lib Num": "C506", "API Num": "1515921414", "Operator": "LADD PETROLEUM", "Well Name": "A-5 MANKE", "Field": "MARY IDA SOUTH", "State": "KS", "County": "RICE", "Type": "SLABBED", "Photos": "F", "Thin Sec": "F", "Analysis": "T", "Latitude": "38.42106", "Longitude": "-98.46549", "coordinates_geohash": "9ycfx67dgu9n", "Source": "FROM STATE RECORDS", "Security Flag": "NO SPECIAL RESTRICTIONS", "crc_collection_name": "core", "sb_parent_id": "4f4e49dae4b07f02db5e0486", "intervals": [{"Formation": "LANSING-KANSAS CITY", "Age": "PENN", "Min Depth": "3070", "Max Depth": "3101"}, {"Formation":...
Core Research Center, cutting DZ00468, from well operated by ATKINSON-LAVINGTONRaw Properties from download, web scrape, MapServer, and Macrostrat API{"Lib Num": "DZ00468", "API Num": "0506905038", "Operator": "ATKINSON-LAVINGTON", "Well Name": "1 BADNER-BRANSON", "Field": null, "State": "CO", "County": "LARIMER", "Thin Sec": "F", "Analysis": "F", "Latitude": "40.353238", "Longitude": "-105.054469", "coordinates_geohash": "9xjm96jdtky2", "Source": "FROM STATE RECORDS", "Min": "0", "Max": "1585", "Security Flag": null, "crc_collection_name": "cutting", "sb_parent_id": "4f4e49d8e4b07f02db5df2d2", "intervals": [{"Formation": null, "Age": null, "Min Depth": null, "Max Depth": null}], "crcwc_url": "https://my.usgs.gov/crcwc/cutting/report/30478",...
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This map illustrates extents and types of unconsolidated deposits and bedrock in the Big Delta A-4 Quadrangle, Alaska. This map is based on field observations begun by P�w� in 1949 and by Reger in 1976. Unit characteristics and extents were determined during field visits and by interpreting 1:40,000-scale black-and-white aerial photographs taken in August 1949 and 1:63,360-scale, false-color infrared aerial photographs taken in July 1978, August 1980, and August 1981.


map background search result map search result map Engineering-geologic map of the Alaska Highway corridor, Tetlin Junction to Canada border, Alaska Geologic map of the Big Delta A-4 Quadrangle, Alaska The chemistry of eolian quartz dust and the origin of chert Core Research Center Core B060 Core Research Center Core B099 Core Research Center Core S402 Core Research Center Core A781 Core Research Center Core S141 Core Research Center Core T438 Core Research Center Core R273 Core Research Center Core C506 Core Research Center Core B012 Core Research Center Core B304 Core Research Center Cutting DC02122 Core Research Center Cutting DC03258 Core Research Center Cutting DZ00468 Core Research Center Cutting DZ02928 Core Research Center Core F101 Geologic map of the Big Delta A-4 Quadrangle, Alaska Engineering-geologic map of the Alaska Highway corridor, Tetlin Junction to Canada border, Alaska The chemistry of eolian quartz dust and the origin of chert