Filters: Tags: Niobrara (X) > Categories: Physical Item (X) > partyWithName: Core Research Center (X)

Filters Date Range Past year (0) Past month (0) Past week (0) Past day (0) Custom range... To   Search Contacts Jeannine Honey BAYSWATER BAYSWATER E&P NADEL & GUSSMAN CIRQUE RESOURCES More... Tag Types Theme (117) Tag Schemes Surface Rock Type (112) Geologic Formation at Depth (117) Geologic Age at Depth (109) Geologic Map Unit Name (117) Surface Geologic Age (117) Stratigraphic Unit Name (81) View Results as: JSON ATOM CSV

Core Research Center Core T385 Core Research Center, core T385, from well operated by PIONEER NATURAL RESOURCESRaw Properties from download, web scrape, MapServer, and Macrostrat API{"Lib Num": "T385", "API Num": "0507109063", "Operator": "PIONEER NATURAL RESOURCES", "Well Name": "KING KONG 11-25R", "Field": "RATON", "State": "CO", "County": "LAS ANIMAS", "Type": "THICK SLAB", "Photos": "F", "Thin Sec": "F", "Analysis": "F", "Latitude": "37.2362736", "Longitude": "-104.9556948", "coordinates_geohash": "9wt7gdtt5098", "Source": "PROVIDED BY DONOR", "Security Flag": "NO SPECIAL RESTRICTIONS", "crc_collection_name": "core", "sb_parent_id": "4f4e49dae4b07f02db5e0486", "intervals": [{"Formation": "NIOBRARA", "Age": "CRETACEOUS", "Min Depth": "5933",... Categories: Physical Item; Tags: CRETACEOUS, CRETACEOUS, CRETACEOUS, CRETACEOUS, CRETACEOUS, All tags... NIOBRARA, PIERRE, PIERRE, PIERRE, PIERRE, Paleocene, Poison Canyon Fm, Poison Canyon Formation, conglomerate, sandstone, shale, Fewer tags Core Research Center Cutting HH01792 Core Research Center, cutting HH01792, from well operated by BAYSWATERRaw Properties from download, web scrape, MapServer, and Macrostrat API{"Lib Num": "HH01792", "API Num": "0512339826", "Operator": "BAYSWATER", "Well Name": "MOJACK I-28 HN", "Field": "WATTENBERG", "State": "CO", "County": "WELD", "Thin Sec": "F", "Analysis": "F", "Latitude": "40.55069", "Longitude": "-104.55117", "coordinates_geohash": "9xjwsyh0vht0", "Source": "PROVIDED BY DONOR", "Min": "6000", "Max": "11666", "Security Flag": null, "crc_collection_name": "cutting", "sb_parent_id": "4f4e49d8e4b07f02db5df2d2", "intervals": [{"Formation": "NIOBRARA", "Age": "CRETACEOUS", "Min Depth": "6000", "Max Depth": "11666"}], "crcwc_url": "https://my.usgs.gov/crcwc/cutting/report/102513",... Categories: Physical Item; Tags: CRETACEOUS, Laramie Fm, Laramie Formation, Late Cretaceous, NIOBRARA, All tags... claystone, coal, sandstone, shale, Fewer tags Core Research Center Core F029 Core Research Center, core F029, from well operated by WELLFLEET DRILLINGRaw Properties from download, web scrape, MapServer, and Macrostrat API{"Lib Num": "F029", "API Num": "2611121107", "Operator": "WELLFLEET DRILLING", "Well Name": "3-1 N-N RANCH", "Field": "WILDCAT", "State": "NE", "County": "LINCOLN", "Type": "SLABBED", "Photos": "T", "Thin Sec": "T", "Analysis": "T", "Latitude": "40.774217", "Longitude": "-100.50615", "coordinates_geohash": "9z0xbytxhbyy", "Source": "FROM STATE RECORDS", "Security Flag": "NO SPECIAL RESTRICTIONS", "crc_collection_name": "core", "sb_parent_id": "4f4e49dae4b07f02db5e0486", "intervals": [{"Formation": "NIOBRARA", "Age": "CRET", "Min Depth": "1022", "Max Depth": "1029"}, {"Formation":... Categories: Physical Item; Tags: CRET, CRET, CRET, CRET, Miocene, All tags... NIOBRARA, NIOBRARA, NIOBRARA, NIOBRARA, Ogallala Formation, Ogallala Group or Formation, conglomerate, mudstone, sandstone, siltstone, volcanic, Fewer tags Core Research Center Core D135 Core Research Center, core D135, from well operated by BASS ENTERPRISESRaw Properties from download, web scrape, MapServer, and Macrostrat API{"Lib Num": "D135", "API Num": "4903120040", "Operator": "BASS ENTERPRISES", "Well Name": "15-42 BASS PHILLIPPI BAKER", "Field": "UNNAMED", "State": "WY", "County": "PLATTE", "Type": "SLABBED", "Photos": "T", "Thin Sec": "T", "Analysis": "T", "Latitude": "41.96723", "Longitude": "-104.75684", "coordinates_geohash": "9xmw8pykudww", "Source": "FROM STATE RECORDS", "Security Flag": "NO SPECIAL RESTRICTIONS", "crc_collection_name": "core", "sb_parent_id": "4f4e49dae4b07f02db5e0486", "intervals": [{"Formation": "NIOBRARA", "Age": "CRET", "Min Depth": "4886", "Max Depth": "4936"},... Categories: Physical Item; Tags: Arikaree Formation, CODELL, CRET, CRET, Chattian - Late Miocene, All tags... Lower Miocene and Upper Oligocene rocks or rocks equivalent to Upper and Lower M, NIOBRARA, claystone, conglomerate, sandstone, siltstone, volcanic, Fewer tags Core Research Center Core T404 Core Research Center, core T404, from well operated by CIRQUE RESOURCESRaw Properties from download, web scrape, MapServer, and Macrostrat API{"Lib Num": "T404", "API Num": "4902120639", "Operator": "CIRQUE RESOURCES", "Well Name": "V.O. CHILD #30-9", "Field": "WILDCAT", "State": "WY", "County": "LARAMIE", "Type": "THIN SLAB", "Photos": "T", "Thin Sec": "T", "Analysis": "T", "Latitude": "41.24061", "Longitude": "-104.69988", "coordinates_geohash": "9xmd97xggyzj", "Source": "PROVIDED BY DONOR", "Security Flag": "NO SPECIAL RESTRICTIONS", "crc_collection_name": "core", "sb_parent_id": "4f4e49dae4b07f02db5e0486", "intervals": [{"Formation": "SHARON SPRINGS", "Age": "CRETACEOUS", "Min Depth": "8417", "Max Depth": "8457"},... Categories: Physical Item; Tags: CODELL, CRETACEOUS, CRETACEOUS, CRETACEOUS, NIOBRARA, All tags... Ogallala Formation, Ogallala Formation, SHARON SPRINGS, Upper and Middle Miocene, ash, carbonate, claystone, conglomerate, gravel, igneous, limestone, sand, sandstone, silt, siltstone, volcanic, Fewer tags Core Research Center Core R667 Core Research Center, core R667, from well operated by HAMILTON BROS OIL CORaw Properties from download, web scrape, MapServer, and Macrostrat API{"Lib Num": "R667", "API Num": "0512310678", "Operator": "HAMILTON BROS OIL CO", "Well Name": "1-29 TOTH", "Field": null, "State": "CO", "County": "WELD", "Type": "FULL", "Photos": "T", "Thin Sec": "F", "Analysis": "T", "Latitude": "40.281664", "Longitude": "-105.034185", "coordinates_geohash": "9xjm1vh3wn7j", "Source": "FROM STATE RECORDS", "Security Flag": "NO SPECIAL RESTRICTIONS", "crc_collection_name": "core", "sb_parent_id": "4f4e49dae4b07f02db5e0486", "intervals": [{"Formation": "CODELL", "Age": "CRET", "Min Depth": "5932", "Max Depth": "5972"}, {"Formation": "NIOBRARA",... Categories: Physical Item; Tags: CODELL, CRET, CRET, Eolium (Windblown Clay, Silt (Loess), Sand And Granules), NIOBRARA, All tags... Upper Holocene To Bull Lake Glaciation, clay, loess, sand, silt, Fewer tags Core Research Center Core U126 Core Research Center, core U126, from well operated by SHELL SWEPIRaw Properties from download, web scrape, MapServer, and Macrostrat API{"Lib Num": "U126", "API Num": "0508107743", "Operator": "SHELL SWEPI", "Well Name": "DRY SAGE 1-23", "Field": "WILDCAT", "State": "CO", "County": "MOFFAT", "Type": "THIN SLAB", "Photos": "T", "Thin Sec": "F", "Analysis": "T", "Latitude": "40.97808", "Longitude": "-107.46525", "coordinates_geohash": "9x794ef4w5v8", "Source": "PROVIDED BY DONOR", "Security Flag": "NO SPECIAL RESTRICTIONS", "crc_collection_name": "core", "sb_parent_id": "4f4e49dae4b07f02db5e0486", "intervals": [{"Formation": "NIOBRARA", "Age": "CRETACEOUS", "Min Depth": "10450", "Max Depth": "10534"}, {"Formation":... Categories: Physical Item; Tags: CRETACEOUS, CRETACEOUS, Lance Fm, Lance Formation, Late Cretaceous, All tags... NIOBRARA, NIOBRARA, coal, sandstone, shale, Fewer tags Core Research Center Core B518 Core Research Center, core B518, from well operated by PLAINS RESOURCESRaw Properties from download, web scrape, MapServer, and Macrostrat API{"Lib Num": "B518", "API Num": "1518120030", "Operator": "PLAINS RESOURCES", "Well Name": "1 SCHOCK ERRINGTON", "Field": "WILDCAT", "State": "KS", "County": "SHERMAN", "Type": "SLABBED", "Photos": "T", "Thin Sec": "T", "Analysis": "T", "Latitude": "39.461012", "Longitude": "-101.978233", "coordinates_geohash": "9xp2rrttncy1", "Source": "FROM STATE RECORDS", "Security Flag": "NO SPECIAL RESTRICTIONS", "crc_collection_name": "core", "sb_parent_id": "4f4e49dae4b07f02db5e0486", "intervals": [{"Formation": "GREENHORN", "Age": "CRET", "Min Depth": "2301", "Max Depth": "2355"}, {"Formation":... Categories: Physical Item; Tags: CRET, CRET, CRET, GREENHORN, Loess, All tags... NIOBRARA, NIOBRARA, Pleistocene - Holocene, silt, Fewer tags Core Research Center Core U127 Core Research Center, core U127, from well operated by SHELL SWEPIRaw Properties from download, web scrape, MapServer, and Macrostrat API{"Lib Num": "U127", "API Num": "0505506309", "Operator": "SHELL SWEPI", "Well Name": "FREEMAN 3-24", "Field": "WILDCAT", "State": "CO", "County": "HUERFANO", "Type": "THIN SLAB", "Photos": "T", "Thin Sec": "F", "Analysis": "F", "Latitude": "37.68482", "Longitude": "-105.06708", "coordinates_geohash": "9wtq3hk3zxdg", "Source": "PROVIDED BY DONOR", "Security Flag": "NO SPECIAL RESTRICTIONS", "crc_collection_name": "core", "sb_parent_id": "4f4e49dae4b07f02db5e0486", "intervals": [{"Formation": "NIOBRARA", "Age": "CRETACEOUS", "Min Depth": "4924", "Max Depth": "5376"}], "crcwc_url":... Categories: Physical Item; Tags: CRETACEOUS, Cuchara Fm, Cuchara Formation, Eocene, NIOBRARA, All tags... sandstone, shale, Fewer tags Core Research Center Core F197 Core Research Center, core F197, from well operated by OHIO OIL CORaw Properties from download, web scrape, MapServer, and Macrostrat API{"Lib Num": "F197", "API Num": "4902506008", "Operator": "OHIO OIL CO", "Well Name": "1 BOSTON GOVERNMENT", "Field": "HELLS HALF ACRE", "State": "WY", "County": "NATRONA", "Type": "THIN - DISCONTINUOUS SEGMENTS", "Photos": "T", "Thin Sec": "T", "Analysis": "F", "Latitude": "43.0479", "Longitude": "-107.05563", "coordinates_geohash": "9xeuguskpn0t", "Source": "FROM STATE RECORDS", "Security Flag": "NO SPECIAL RESTRICTIONS", "crc_collection_name": "core", "sb_parent_id": "4f4e49dae4b07f02db5e0486", "intervals": [{"Formation": "NIOBRARA", "Age": "CRET", "Min Depth": "1150", "Max Depth":... Categories: Physical Item; Tags: CARLILE, CARLILE, CRET, CRET, CRET, All tags... CRET, CRET, CRET, CRET, CRET, CRET, CRET, CRET, CRET, CRET, CRET, CRET, CRET, CRET, CRET, CRET, CRET, FRONTIER, FRONTIER, FRONTIER, FRONTIER, FRONTIER, FRONTIER, FRONTIER, FRONTIER, Late Cretaceous, Mesaverde Formation, Mesaverde Formation or Mesaverde Group, NIOBRARA, NIOBRARA, NIOBRARA, NIOBRARA, NIOBRARA, NIOBRARA, NIOBRARA, NIOBRARA, NIOBRARA, SHANNON, coal, conglomerate, sandstone, shale, Fewer tags Core Research Center Core F031 Core Research Center, core F031, from well operated by WELLFLEET DRILLINGRaw Properties from download, web scrape, MapServer, and Macrostrat API{"Lib Num": "F031", "API Num": "2604121010", "Operator": "WELLFLEET DRILLING", "Well Name": "27-1 WALKER", "Field": "WILDCAT", "State": "NE", "County": "CUSTER", "Type": "SLABBED", "Photos": "T", "Thin Sec": "T", "Analysis": "T", "Latitude": "41.24715", "Longitude": "-99.247233", "coordinates_geohash": "9z36tsf65f53", "Source": "FROM STATE RECORDS", "Security Flag": "NO SPECIAL RESTRICTIONS", "crc_collection_name": "core", "sb_parent_id": "4f4e49dae4b07f02db5e0486", "intervals": [{"Formation": "NIOBRARA", "Age": "CRETACEOUS", "Min Depth": "892", "Max Depth": "910"}, {"Formation":... Categories: Physical Item; Tags: CRETACEOUS, CRETACEOUS, CRETACEOUS, Miocene, NIOBRARA, All tags... NIOBRARA, NIOBRARA, Ogallala Formation, Ogallala Group or Formation, conglomerate, mudstone, sandstone, siltstone, volcanic, Fewer tags Core Research Center Core D708 Core Research Center, core D708, from well operated by CHAMPLIN PETROLEUMRaw Properties from download, web scrape, MapServer, and Macrostrat API{"Lib Num": "D708", "API Num": "4902120349", "Operator": "CHAMPLIN PETROLEUM", "Well Name": "1 LEE 41-5", "Field": "SILO", "State": "WY", "County": "LARAMIE", "Type": "SLABBED", "Photos": "T", "Thin Sec": "T", "Analysis": "T", "Latitude": "41.30142", "Longitude": "-104.56107", "coordinates_geohash": "9xmduwsynqxq", "Source": "FROM STATE RECORDS", "Security Flag": "NO SPECIAL RESTRICTIONS", "crc_collection_name": "core", "sb_parent_id": "4f4e49dae4b07f02db5e0486", "intervals": [{"Formation": "NIOBRARA", "Age": "CRET", "Min Depth": "7980", "Max Depth": "8017"}], "crcwc_url":... Categories: Physical Item; Tags: CRET, NIOBRARA, Ogallala Formation, Ogallala Formation, Upper and Middle Miocene, All tags... ash, carbonate, claystone, conglomerate, gravel, igneous, limestone, sand, sandstone, silt, siltstone, volcanic, Fewer tags Core Research Center Core T353 Core Research Center, core T353, from well operated by INCREMENTAL OIL AND GASRaw Properties from download, web scrape, MapServer, and Macrostrat API{"Lib Num": "T353", "API Num": "0504306182", "Operator": "INCREMENTAL OIL AND GAS", "Well Name": "PATTI 32-29", "Field": "FLORENCE", "State": "CO", "County": "FREMONT", "Type": "THIN SLAB", "Photos": "T", "Thin Sec": "T", "Analysis": "F", "Latitude": "38.368717", "Longitude": "-105.133003", "coordinates_geohash": "9wv4r8u3zrr0", "Source": "PROVIDED BY DONOR", "Security Flag": "NO SPECIAL RESTRICTIONS", "crc_collection_name": "core", "sb_parent_id": "4f4e49dae4b07f02db5e0486", "intervals": [{"Formation": "NIOBRARA", "Age": "CRETACEOUS", "Min Depth": "4324", "Max Depth":... Categories: Physical Item; Tags: CRETACEOUS, Late Cretaceous, NIOBRARA, Pierre Shale, Pierre Shale--Upper unit, All tags... shale, Fewer tags Core Research Center Core T355 Core Research Center, core T355, from well operated by PINE RIDGE OIL AND GASRaw Properties from download, web scrape, MapServer, and Macrostrat API{"Lib Num": "T355", "API Num": "0504306158", "Operator": "PINE RIDGE OIL AND GAS", "Well Name": "BULL #42-4", "Field": "FLORENCE", "State": "CO", "County": "FREMONT", "Type": "SLABBED", "Photos": "T", "Thin Sec": "T", "Analysis": "T", "Latitude": "38.339161", "Longitude": "-105.108953", "coordinates_geohash": "9wv605mvzcs5", "Source": "PROVIDED BY DONOR", "Security Flag": "NO SPECIAL RESTRICTIONS", "crc_collection_name": "core", "sb_parent_id": "4f4e49dae4b07f02db5e0486", "intervals": [{"Formation": "SHARON SPRINGS", "Age": "CRETACEOUS", "Min Depth": "2963", "Max Depth":... Categories: Physical Item; Tags: CRETACEOUS, CRETACEOUS, CRETACEOUS, CRETACEOUS, FORT HAYS, All tags... Late Cretaceous, NIOBRARA, PIERRE, Pierre Shale, Pierre Shale--Upper unit, SHARON SPRINGS, shale, Fewer tags Core Research Center Core B329 Core Research Center, core B329, from well operated by GRAVES DRILLINGRaw Properties from download, web scrape, MapServer, and Macrostrat API{"Lib Num": "B329", "API Num": "4011720004", "Operator": "GRAVES DRILLING", "Well Name": "1 NEMEC", "Field": "WILDCAT", "State": "SD", "County": "STANLEY", "Type": "SLABBED", "Photos": "T", "Thin Sec": "T", "Analysis": "T", "Latitude": "44.199135", "Longitude": "-101.084406", "coordinates_geohash": "9zb57y0wdegy", "Source": "FROM STATE RECORDS", "Security Flag": "NO SPECIAL RESTRICTIONS", "crc_collection_name": "core", "sb_parent_id": "4f4e49dae4b07f02db5e0486", "intervals": [{"Formation": "NIOBRARA", "Age": "CRET", "Min Depth": "1124", "Max Depth": "1139"}, {"Formation": "NIOBRARA",... Categories: Physical Item; Tags: CRET, CRET, Late Cretaceous, NIOBRARA, NIOBRARA, All tags... Pierre Shale, Pierre Shale, carbonate, conglomerate, sandstone, shale, Fewer tags Core Research Center Core C780 Core Research Center, core C780, from well operated by FENIX & SCISSONRaw Properties from download, web scrape, MapServer, and Macrostrat API{"Lib Num": "C780", "API Num": "4902510655", "Operator": "FENIX & SCISSON", "Well Name": "38-AX-10 NPR-3", "Field": "TEAPOT DOME", "State": "WY", "County": "NATRONA", "Type": "SLABBED", "Photos": "T", "Thin Sec": "T", "Analysis": "T", "Latitude": "43.27118", "Longitude": "-106.20328", "coordinates_geohash": "9xsqpm30uhwd", "Source": "FROM STATE RECORDS", "Security Flag": "NO SPECIAL RESTRICTIONS", "crc_collection_name": "core", "sb_parent_id": "4f4e49dae4b07f02db5e0486", "intervals": [{"Formation": "STEELE", "Age": "CRET", "Min Depth": "1851", "Max Depth": "1873"}, {"Formation":... Categories: Physical Item; Tags: CRET, CRET, CRET, Cody Shale, Cody Shale, All tags... NIOBRARA, STEELE, STEELE, Upper Cretaceous, Fewer tags Core Research Center Core F123 Core Research Center, core F123, from well operated by AMOCORaw Properties from download, web scrape, MapServer, and Macrostrat API{"Lib Num": "F123", "API Num": "0512307217", "Operator": "AMOCO", "Well Name": "1 UPRR 43 PAN AM", "Field": "SPINDLE", "State": "CO", "County": "WELD", "Type": "SLABBED", "Photos": "T", "Thin Sec": "F", "Analysis": "F", "Latitude": "40.074807", "Longitude": "-104.996606", "coordinates_geohash": "9xj7fxru9v2p", "Source": "PROVIDED BY DONOR", "Security Flag": null, "crc_collection_name": "core", "sb_parent_id": "4f4e49dae4b07f02db5e0486", "intervals": [{"Formation": "NIOBRARA", "Age": "CRETACEOUS", "Min Depth": "8008", "Max Depth": "8021"}, {"Formation": "MUDDY", "Age": "CRETACEOUS", "Min... Categories: Physical Item; Tags: CRETACEOUS, CRETACEOUS, Eolium (Windblown Clay, Silt (Loess), Sand And Granules), MUDDY, NIOBRARA, All tags... Upper Holocene To Bull Lake Glaciation, clay, loess, sand, silt, Fewer tags Core Research Center Cutting HH01401 Core Research Center, cutting HH01401, from well operated by NADEL & GUSSMANRaw Properties from download, web scrape, MapServer, and Macrostrat API{"Lib Num": "HH01401", "API Num": "4900723191", "Operator": "NADEL & GUSSMAN", "Well Name": "HATFIELD 16-35 (VIEWING ONLY, NO SAMPLING)", "Field": "HATFIELD", "State": "WY", "County": "CARBON", "Thin Sec": "F", "Analysis": "F", "Latitude": "41.6603", "Longitude": "-107.2703361", "coordinates_geohash": "9x7tp000u4b1", "Source": "PROVIDED BY DONOR", "Min": "740", "Max": "5924", "Security Flag": "VIEWING ALLOWED, NO SAMPLING", "crc_collection_name": "cutting", "sb_parent_id": "4f4e49d8e4b07f02db5df2d2", "intervals": [{"Formation": "CARLILE", "Age": null, "Min Depth": "2747",... Categories: Physical Item; Tags: CARLILE, Cretaceous, NIOBRARA, Steele Shale, Steele Shale, All tags... TENSLEEP, sandstone, shale, siltstone, Fewer tags Core Research Center Cutting HH01739 Core Research Center, cutting HH01739, from well operated by SPYGLASS CEDAR CREEKRaw Properties from download, web scrape, MapServer, and Macrostrat API{"Lib Num": "HH01739", "API Num": "4006320609", "Operator": "SPYGLASS CEDAR CREEK", "Well Name": "10-27 STATE", "Field": "WILDCAT", "State": "SD", "County": "HARDING", "Thin Sec": "F", "Analysis": "T", "Latitude": "45.5786", "Longitude": "-103.6139", "coordinates_geohash": "c8n761qdt4u7", "Source": "PROVIDED BY DONOR", "Min": "810", "Max": "5020", "Security Flag": null, "crc_collection_name": "cutting", "sb_parent_id": "4f4e49d8e4b07f02db5df2d2", "intervals": [{"Formation": "PIPER /LM/ SD/ SH/", "Age": "TRIASSIC", "Min Depth": "4740", "Max Depth": "5020"}, {"Formation":... Categories: Physical Item; Tags: CRETACEOUS, CRETACEOUS, CRETACEOUS, CRETACEOUS, EAGLE, All tags... FALL RIVER, GREENHORN, Hell Creek Formation, Hell Creek Formation, Late Cretaceous, NIOBRARA, PIPER /LM/ SD/ SH/, SKULL CREEK, TRIASSIC, UNKNOWN, UNKNOWN, conglomerate, sandstone, shale, siltstone, Fewer tags Core Research Center Core E940 Core Research Center, core E940, from well operated by CITIES SERVICERaw Properties from download, web scrape, MapServer, and Macrostrat API{"Lib Num": "E940", "API Num": "0512109383", "Operator": "CITIES SERVICE", "Well Name": "1 STATE-B", "Field": "FERAL", "State": "CO", "County": "WASHINGTON", "Type": "SLABBED", "Photos": "T", "Thin Sec": "T", "Analysis": "T", "Latitude": "39.94219", "Longitude": "-102.85418", "coordinates_geohash": "9xng5rrb5gus", "Source": "FROM STATE RECORDS", "Security Flag": "NO SPECIAL RESTRICTIONS", "crc_collection_name": "core", "sb_parent_id": "4f4e49dae4b07f02db5e0486", "intervals": [{"Formation": "NIOBRARA", "Age": "CRET", "Min Depth": "2830", "Max Depth": "2890"}], "crcwc_url": "https://my.usgs.gov/crcwc/core/report/13104",... Categories: Physical Item; Tags: CRET, Eolian deposits, NIOBRARA, Quaternary, sand, All tags... silt, Fewer tags 1 2 3 4 5 6 »