Skip to main content
Advanced Search

Filters: Tags: silt (X)

6,605 results (31ms)   

View Results as: JSON ATOM CSV
thumbnail
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...
thumbnail
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.
thumbnail
This dataset summarizes various sedimentary data from ten U.S. Geological Survey (USGS) surface water sites across the contiguous United States. These sites include: 01648010 Rock Creek at Joyce Road, Washington, DC 05586300 Illinois River at Florence, Illinois 06731000 Cherry Creek below Cherry Creek Lake, Colorado 06807000 Missouri River at Nebraska City, Nebraska 06935965 Missouri River at St. Charles, Missouri 08374550 Rio Grande near Castolon, Texas 08375300 Rio Grande at Rio Grande Village, Big Bend National Park, Texas 09404200 Colorado River above Diamond Creek near Peach Springs, Arizona 11447650 Sacramento River at Freeport, California 12046260 Elwha River at diversion near Port Angeles, Washington The...
Core Research Center, core U223, from well operated by PACIFIC ENERGY & MINRaw Properties from download, web scrape, MapServer, and Macrostrat API{"Lib Num": "U223", "API Num": null, "Operator": "PACIFIC ENERGY & MIN", "Well Name": "2 HORSE PRAIRIE D D", "Field": "TERTIARY BASIN PROJ", "State": "MT", "County": "BEAVERHEAD", "Type": "FULL", "Photos": "F", "Thin Sec": "F", "Analysis": "F", "Latitude": "44.941452", "Longitude": "-113.026695", "coordinates_geohash": "9rzxsj26zjge", "Source": "CENTER OF QUARTER SECTION", "Security Flag": "NO SPECIAL RESTRICTIONS", "crc_collection_name": "core", "sb_parent_id": "4f4e49dae4b07f02db5e0486", "intervals": [{"Formation": "OLIGOCENE", "Age": "QUAT", "Min Depth": "0", "Max Depth":...
Core Research Center, core C398, from well operated by SAMSON RESOURCES CORaw Properties from download, web scrape, MapServer, and Macrostrat API{"Lib Num": "C398", "API Num": "0503306083", "Operator": "SAMSON RESOURCES CO", "Well Name": "1-16 WARREN", "Field": "PAPOOSE CANYON", "State": "CO", "County": "DOLORES", "Type": "SLABBED", "Photos": "T", "Thin Sec": "T", "Analysis": "T", "Latitude": "37.642673", "Longitude": "-108.956095", "coordinates_geohash": "9wdw0sss6yz4", "Source": "FROM STATE RECORDS", "Security Flag": "NO SPECIAL RESTRICTIONS", "crc_collection_name": "core", "sb_parent_id": "4f4e49dae4b07f02db5e0486", "intervals": [{"Formation": "DESERT CREEK", "Age": "PENN", "Min Depth": "6216", "Max Depth": "6246"}],...
Core Research Center, cutting CZ01173, from well operated by GENERAL PETROLEUMRaw Properties from download, web scrape, MapServer, and Macrostrat API{"Lib Num": "CZ01173", "API Num": "4903505583", "Operator": "GENERAL PETROLEUM", "Well Name": "68X-32 TIP TOP", "Field": "TIP TOP", "State": "WY", "County": "SUBLETTE", "Thin Sec": "F", "Analysis": "F", "Latitude": "42.36433", "Longitude": "-110.29193", "coordinates_geohash": "9x9940py5g82", "Source": "FROM STATE RECORDS", "Min": "20", "Max": "7410", "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/13372",...
Core Research Center, core R001, from well operated by CHAMLEE-STUARCORaw Properties from download, web scrape, MapServer, and Macrostrat API{"Lib Num": "R001", "API Num": "0512106358", "Operator": "CHAMLEE-STUARCO", "Well Name": "1 PIONEER FARMS", "Field": "WILDCAT", "State": "CO", "County": "WASHINGTON", "Type": "CHIPS", "Photos": "F", "Thin Sec": "F", "Analysis": "T", "Latitude": "39.937258", "Longitude": "-102.951761", "coordinates_geohash": "9xng1q2g6h7p", "Source": "FROM STATE RECORDS", "Security Flag": "NO SPECIAL RESTRICTIONS", "crc_collection_name": "core", "sb_parent_id": "4f4e49dae4b07f02db5e0486", "intervals": [{"Formation": "DAKOTA D", "Age": "CRET", "Min Depth": "3943", "Max Depth": "3973"}, {"Formation":...
Core Research Center, core E941, from well operated by ENCANA ENERGYRaw Properties from download, web scrape, MapServer, and Macrostrat API{"Lib Num": "E941", "API Num": "0512320883", "Operator": "ENCANA ENERGY", "Well Name": "32-4 OLIN", "Field": "WATTENBERG", "State": "CO", "County": "WELD", "Type": "SLABBED", "Photos": "F", "Thin Sec": "F", "Analysis": "T", "Latitude": "40.082549", "Longitude": "-104.666556", "coordinates_geohash": "9xjs42b1u2xn", "Source": "FROM STATE RECORDS", "Security Flag": "NO SPECIAL RESTRICTIONS", "crc_collection_name": "core", "sb_parent_id": "4f4e49dae4b07f02db5e0486", "intervals": [{"Formation": "DAKOTA", "Age": "CRET", "Min Depth": "7866", "Max Depth": "7867"}, {"Formation": "DAKOTA",...
Core Research Center, core A838, from well operated by BROOKS EXPLORATIONRaw Properties from download, web scrape, MapServer, and Macrostrat API{"Lib Num": "A838", "API Num": "0512308547", "Operator": "BROOKS EXPLORATION", "Well Name": "1 M LEFFLER", "Field": "WILDCAT", "State": "CO", "County": "WELD", "Type": "SLABBED", "Photos": "T", "Thin Sec": "F", "Analysis": "T", "Latitude": "40.479173", "Longitude": "-104.785343", "coordinates_geohash": "9xjqr918k8c0", "Source": "FROM STATE RECORDS", "Security Flag": "NO SPECIAL RESTRICTIONS", "crc_collection_name": "core", "sb_parent_id": "4f4e49dae4b07f02db5e0486", "intervals": [{"Formation": "SUSSEX", "Age": "CRET", "Min Depth": "4380", "Max Depth": "4412"}], "crcwc_url":...
Core Research Center, core D935, from well operated by CARDINAL DRILLINGRaw Properties from download, web scrape, MapServer, and Macrostrat API{"Lib Num": "D935", "API Num": "2508721308", "Operator": "CARDINAL DRILLING", "Well Name": "4-3 GREENLEAF", "Field": "WILDCAT", "State": "MT", "County": "ROSEBUD", "Type": "SLABBED", "Photos": "F", "Thin Sec": "F", "Analysis": "F", "Latitude": "45.78678", "Longitude": "-106.541469", "coordinates_geohash": "c8hhrx4z7f6t", "Source": "FROM STATE RECORDS", "Security Flag": "NO SPECIAL RESTRICTIONS", "crc_collection_name": "core", "sb_parent_id": "4f4e49dae4b07f02db5e0486", "intervals": [{"Formation": "SHANNON", "Age": "CRET", "Min Depth": "5439", "Max Depth": "5456"}, {"Formation":...
Core Research Center, core S678, from well operated by CHEVRON USA INCRaw Properties from download, web scrape, MapServer, and Macrostrat API{"Lib Num": "S678", "API Num": "0431220006", "Operator": "CHEVRON USA INC", "Well Name": "OCS-P-0296 2", "Field": null, "State": "CA", "County": "SANTA CATALINA AREA", "Type": "FULL - DISCONTINUOUS SEGMENTS", "Photos": "F", "Thin Sec": "F", "Analysis": "F", "Latitude": "33.590894", "Longitude": "-118.12906", "coordinates_geohash": "9mgzpgj11kkx", "Source": "PROVIDED BY DONOR", "Security Flag": null, "crc_collection_name": "core", "sb_parent_id": "4f4e49dae4b07f02db5e0486", "intervals": [{"Formation": null, "Age": null, "Min Depth": "3505", "Max Depth": "3511"}, {"Formation":...
Core Research Center, core B285, from well operated by AMOCO PRODUCTIONRaw Properties from download, web scrape, MapServer, and Macrostrat API{"Lib Num": "B285", "API Num": "1518720227", "Operator": "AMOCO PRODUCTION", "Well Name": "1 H L CULLERS", "Field": "PANOMA GAS AREA", "State": "KS", "County": "STANTON", "Type": "SLABBED", "Photos": "T", "Thin Sec": "F", "Analysis": "F", "Latitude": "37.481194", "Longitude": "-101.768575", "coordinates_geohash": "9wxthpnru2fr", "Source": "FROM STATE RECORDS", "Security Flag": "NO SPECIAL RESTRICTIONS", "crc_collection_name": "core", "sb_parent_id": "4f4e49dae4b07f02db5e0486", "intervals": [{"Formation": "COUNCIL GROVE", "Age": "PERM", "Min Depth": "2610", "Max Depth": "2730"}],...
Core Research Center, core T560, from well operated by TEXOTA OIL COMPANYRaw Properties from download, web scrape, MapServer, and Macrostrat API{"Lib Num": "T560", "API Num": "2612305176", "Operator": "TEXOTA OIL COMPANY", "Well Name": "1 HARLESS", "Field": "GREENWOOD CREEK", "State": "NE", "County": "MORRILL", "Type": "FULL", "Photos": "F", "Thin Sec": "F", "Analysis": "F", "Latitude": "41.516252", "Longitude": "-103.082576", "coordinates_geohash": "9xqsnmc99yk3", "Source": "FROM STATE RECORDS", "Security Flag": "NO SPECIAL RESTRICTIONS", "crc_collection_name": "core", "sb_parent_id": "4f4e49dae4b07f02db5e0486", "intervals": [{"Formation": "DAKOTA J", "Age": "CRET", "Min Depth": "4304", "Max Depth": "4339"}, {"Formation":...
Core Research Center, core S367, from well operated by TEXACO INCORPORATEDRaw Properties from download, web scrape, MapServer, and Macrostrat API{"Lib Num": "S367", "API Num": "4903520721", "Operator": "TEXACO INCORPORATED", "Well Name": "M327 LABARGE", "Field": "LABARGE", "State": "WY", "County": "SUBLETTE", "Type": "FULL", "Photos": "F", "Thin Sec": "F", "Analysis": "F", "Latitude": "42.29041", "Longitude": "-110.2625", "coordinates_geohash": "9x98dftr3xbf", "Source": "FROM STATE RECORDS", "Security Flag": "NO SPECIAL RESTRICTIONS", "crc_collection_name": "core", "sb_parent_id": "4f4e49dae4b07f02db5e0486", "intervals": [{"Formation": "ALMY", "Age": "TERT", "Min Depth": "791", "Max Depth": "819"}, {"Formation":...
Core Research Center, core T809, from well operated by PETROCORPRaw Properties from download, web scrape, MapServer, and Macrostrat API{"Lib Num": "T809", "API Num": "0508306564", "Operator": "PETROCORP", "Well Name": "3 SLEEPING UTE", "Field": "SLEEPING UTE", "State": "CO", "County": "MONTEZUMA", "Type": "SLABBED", "Photos": "T", "Thin Sec": "F", "Analysis": "F", "Latitude": "37.22625", "Longitude": "-109.035673", "coordinates_geohash": "9wd7ybfdsevq", "Source": "FROM STATE RECORDS", "Security Flag": "NO SPECIAL RESTRICTIONS", "crc_collection_name": "core", "sb_parent_id": "4f4e49dae4b07f02db5e0486", "intervals": [{"Formation": "ISMAY", "Age": "PENN", "Min Depth": "5838", "Max Depth": "5898"}, {"Formation": "ISMAY",...
Core Research Center, cutting AZ00015, from well operated by RICHFIELD OIL CORPRaw Properties from download, web scrape, MapServer, and Macrostrat API{"Lib Num": "AZ00015", "API Num": "5003310003", "Operator": "RICHFIELD OIL CORP", "Well Name": "1 DUKTOTH RIVER UNIT", "Field": "EXPLORATORY", "State": "AK", "County": "BERING GLACIER", "Thin Sec": "F", "Analysis": "F", "Latitude": "60.1645830735", "Longitude": "-142.7783468075", "coordinates_geohash": "bfdqqbxup7hj", "Source": "FROM STATE RECORDS", "Min": "1300", "Max": "10390", "Security Flag": null, "crc_collection_name": "cutting", "sb_parent_id": "4f4e49d8e4b07f02db5df2d2", "intervals": [{"Formation": null, "Age": null, "Min Depth": null, "Max Depth": null}],...
Core Research Center, cutting BZ00124, from well operated by DEEP ROCKRaw Properties from download, web scrape, MapServer, and Macrostrat API{"Lib Num": "BZ00124", "API Num": "2508505128", "Operator": "DEEP ROCK", "Well Name": "1 WERNER", "Field": "WILDCAT ROOSEVELT", "State": "MT", "County": "ROOSEVELT", "Thin Sec": "F", "Analysis": "F", "Latitude": "48.1051527", "Longitude": "-105.2882765", "coordinates_geohash": "c8t1sj72v66v", "Source": "FROM STATE RECORDS", "Min": "250", "Max": "5975", "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/303",...
Core Research Center, cutting DZ17452, from well operated by QUEST OILRaw Properties from download, web scrape, MapServer, and Macrostrat API{"Lib Num": "DZ17452", "API Num": "0500506388", "Operator": "QUEST OIL", "Well Name": "1 SCHROTH", "Field": null, "State": "CO", "County": "ARAPAHOE", "Thin Sec": "F", "Analysis": "F", "Latitude": "39.606076", "Longitude": "-104.344702", "coordinates_geohash": "9xjc3d4d05wy", "Source": "FROM STATE RECORDS", "Min": "200", "Max": "7637", "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/39721",...
Core Research Center, cutting DZ16290, from well operated by AMOCO PRODUCTIONRaw Properties from download, web scrape, MapServer, and Macrostrat API{"Lib Num": "DZ16290", "API Num": "0512308706", "Operator": "AMOCO PRODUCTION", "Well Name": "1 CHAMPLIN 311 A", "Field": null, "State": "CO", "County": "WELD", "Thin Sec": "F", "Analysis": "F", "Latitude": "40.598422", "Longitude": "-104.689211", "coordinates_geohash": "9xjwcwxwuw6k", "Source": "FROM STATE RECORDS", "Min": "550", "Max": "8330", "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/39938",...
Core Research Center, cutting DZ16916, from well operated by SUMMIT OILRaw Properties from download, web scrape, MapServer, and Macrostrat API{"Lib Num": "DZ16916", "API Num": "0500107344", "Operator": "SUMMIT OIL", "Well Name": "1 WILLIAM GAIR", "Field": null, "State": "CO", "County": "ADAMS", "Thin Sec": "F", "Analysis": "F", "Latitude": "39.885344", "Longitude": "-104.105497", "coordinates_geohash": "9xjfzhbsyp50", "Source": "FROM STATE RECORDS", "Min": "200", "Max": "6495", "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/40114",...


map background search result map search result map 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 U223 Core Research Center Core A838 Core Research Center Core D935 Core Research Center Core C398 Core Research Center Core B285 Core Research Center Core T560 Core Research Center Core E941 Core Research Center Core S367 Core Research Center Core R001 Core Research Center Core T809 Core Research Center Cutting AZ00015 Core Research Center Cutting BZ00124 Core Research Center Cutting CZ01173 Core Research Center Cutting DZ16290 Core Research Center Cutting DZ16916 Core Research Center Cutting DZ17452 Core Research Center Core S678 Data for Field Evaluation of the Sequoia Scientific LISST-ABS Acoustic Backscatter Sediment Sensor Geologic map of the Big Delta A-4 Quadrangle, Alaska Data for Field Evaluation of the Sequoia Scientific LISST-ABS Acoustic Backscatter Sediment Sensor The chemistry of eolian quartz dust and the origin of chert