Filters: Tags: plutonic (X)
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Core Research Center, core R700, from well operated by USGSRaw Properties from download, web scrape, MapServer, and Macrostrat API{"Lib Num": "R700", "API Num": null, "Operator": "USGS", "Well Name": "Y-1 BLACK SAND BASIN", "Field": "UPPER GEYSER BASIN", "State": "WY", "County": "YELLOWSTONE NATL PARK", "Type": "FULL", "Photos": "T", "Thin Sec": "T", "Analysis": "T", "Latitude": "44.45", "Longitude": "-110.85", "coordinates_geohash": "9xchveckpb94", "Source": "DERIVED FROM MAPPED LOCATION", "Security Flag": "NO SPECIAL RESTRICTIONS", "crc_collection_name": "core", "sb_parent_id": "4f4e49dae4b07f02db5e0486", "intervals": [{"Formation": "UNKNOWN", "Age": null, "Min Depth": "0", "Max Depth": "215"}], "crcwc_url": "https://my.usgs.gov/crcwc/core/report/13260",...
This report provides detailed (1:63,360-scale) mapping of the Tanana A-1 and A-2 quadrangles (500 square miles; equivalent to eight 7.5-minute quadrangles). The area is part of the Manley Hot Springs-Tofty mining districts and adjacent to the Rampart mining district to the south of the Tanana B-1 Quadrangle. This report includes detailed bedrock, surficial, structural, and stratigraphic data. Based on the resulting geologic maps, field investigations, and laboratory materials analyses, the report also includes derivative maps of geologic construction materials and geologic hazards. The Tanana A-1 and A-2 Quadrangles and surrounding area comprise several isolated mountainous ridges in the western Yukon-Tanana Upland...
In 1968, the Missouri Geological Survey (MGS) established the Operation Basement program to address three objectives: a) to obtain drill hole and underground mining data relative to the structure and composition of the buried Precambrian basement; b) to expand mapping in the Precambrian outcrop area and conduct research related to Precambrian geology and mineral resources; and c) to publish the results of the first two objectives in the Contribution to Precambrian Geology series (Kisvarsanyi, 1976). The database presented here represents the first of those objectives. It was originally compiled in close cooperation with exploration and mining companies operating in Missouri, who provided drillhole data, core and...
Categories: Data;
Types: Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: Adair County,
Andrew County,
Atchison County,
Audrain County,
Barry County,
Core Research Center, core T076, from well operated by USGSRaw Properties from download, web scrape, MapServer, and Macrostrat API{"Lib Num": "T076", "API Num": null, "Operator": "USGS", "Well Name": "GS-5", "Field": null, "State": "NV", "County": "WASHOE", "Type": "DISCONTINUOUS SEGMENTS", "Photos": "T", "Thin Sec": "F", "Analysis": "T", "Latitude": "39.3877316986226", "Longitude": "-119.745431993329", "coordinates_geohash": "9r4b54k41jq7", "Source": "CENTER OF QUARTER SECTION", "Security Flag": "NO SPECIAL RESTRICTIONS", "crc_collection_name": "core", "sb_parent_id": "4f4e49dae4b07f02db5e0486", "intervals": [{"Formation": "UNKNOWN", "Age": null, "Min Depth": "8", "Max Depth": "138"}, {"Formation": "UNKNOWN", "Age":...
Categories: Physical Item;
Tags: Felsic phaneritic intrusive rocks,
Jurassic - Miocene,
granodiorite,
monzonite,
plutonic,
Core Research Center, core S875, from well operated by USGSRaw Properties from download, web scrape, MapServer, and Macrostrat API{"Lib Num": "S875", "API Num": null, "Operator": "USGS", "Well Name": "GS-4", "Field": null, "State": "NV", "County": "WASHOE", "Type": "DISCONTINUOUS SEGMENTS", "Photos": "T", "Thin Sec": "F", "Analysis": "F", "Latitude": "39.3877316986226", "Longitude": "-119.745431993329", "coordinates_geohash": "9r4b54k41jq7", "Source": "CENTER OF QUARTER SECTION", "Security Flag": "NO SPECIAL RESTRICTIONS", "crc_collection_name": "core", "sb_parent_id": "4f4e49dae4b07f02db5e0486", "intervals": [{"Formation": "UNKNOWN", "Age": null, "Min Depth": "115", "Max Depth": "146"}, {"Formation": "UNKNOWN",...
Categories: Physical Item;
Tags: Felsic phaneritic intrusive rocks,
Jurassic - Miocene,
granodiorite,
monzonite,
plutonic,
U-Pb analyses were performed on igneous rocks from the Ray Mountains area of west-central Alaska. These new age analyses will allow us to better evaluate the geochronology of the granitic rocks that are the apparent source of the alluvial REE and tin resources. The plutonic samples have ages ranging from 98.0 +/- 0.9 Ma to 111.6 +/- 1.0 Ma. The sample location coordinates and analytical data tables associated with this report are available in digital format as comma-separated value (CSV) files.
This report provides detailed (1:63,360-scale) mapping of portions of U.S. Geological Survey Circle B-2 (1955), B-3 (1955), B-4 (1952), C-2 (1955), C-3 (1955), and C-4 (1952) quadrangles. The area is part of the Circle mining district and adjacent to the Fairbanks mining district. This report includes detailed geologic, structural, stratigraphic, and geochronologic data. Based on the resulting geologic maps, field investigations, and laboratory materials analyses, the project has also generated derivative maps of geologic construction materials and geologic hazards.
Core Research Center, core R823, from well operated by USGSRaw Properties from download, web scrape, MapServer, and Macrostrat API{"Lib Num": "R823", "API Num": null, "Operator": "USGS", "Well Name": "Y-9 NORRIS BASIN II", "Field": "NORRIS BASIN", "State": "WY", "County": "YELLOWSTONE NATL PARK", "Type": "FULL", "Photos": "T", "Thin Sec": "T", "Analysis": "T", "Latitude": "44.7167", "Longitude": "-110.7", "coordinates_geohash": "9xcq2uqtxj13", "Source": "DERIVED FROM MAPPED LOCATION", "Security Flag": "NO SPECIAL RESTRICTIONS", "crc_collection_name": "core", "sb_parent_id": "4f4e49dae4b07f02db5e0486", "intervals": [{"Formation": "UNKNOWN", "Age": null, "Min Depth": "0", "Max Depth": "813"}], "crcwc_url": "https://my.usgs.gov/crcwc/core/report/12960",...
Core Research Center, core T107, from well operated by IGSB/USGSRaw Properties from download, web scrape, MapServer, and Macrostrat API{"Lib Num": "T107", "API Num": null, "Operator": "IGSB/USGS", "Well Name": "MANSON M-2A", "Field": null, "State": "IA", "County": "POCAHONTAS", "Type": "SLABBED", "Photos": "F", "Thin Sec": "F", "Analysis": "T", "Latitude": "42.599504", "Longitude": "-94.463969", "coordinates_geohash": "9zsf67j2jgp7", "Source": "CENTER OF QUARTER SECTION", "Security Flag": "PERMANENT HOLD NO VIEWING OR SAMPLING", "crc_collection_name": "core", "sb_parent_id": "4f4e49dae4b07f02db5e0486", "intervals": [{"Formation": "UNKNOWN", "Age": "CRET", "Min Depth": "146", "Max Depth": "200"}], "crcwc_url": "https://my.usgs.gov/crcwc/core/report/16328",...
Categories: Physical Item;
Tags: CRET,
Campanian,
Manson Group,
Manson Group, Crater Moat area; Manson Impact Structure,
breccia,
This report provides detailed (1:63,360-scale) mapping of the Tanana B-1 Quadrangle (250 square miles; equivalent to four 7.5 minute quadrangles). The area is part of the Manley Hot Springs-Tofty mining districts and adjacent to the Rampart mining district to the north of the Tanana A-1 and A-2 Quadrangles. This report includes detailed bedrock, structural, stratigraphic, and geochronologic data. Based on the resulting geologic maps, field investigations, and laboratory materials analyses, the project has also generated derivative maps of geologic construction materials and geologic hazards.
This Division of Geological & Geophysical Surveys (DGGS) Raw Data File presents U-Pb geochronology and Lu-Hf isotopic compositions, age-dating results, and additional trace-elemental composition of zircons from four granitoids sampled during investigations by DGGS geologists in the western Alaska Range and the Talkeetna Mountains. The purpose of the Lu-Hf and U-Pb isotopic study was to better understand the Jurassic through early Tertiary magmatic and tectonic evolution of the Alaska Range and the significance of that magmatism for the formation of metallic mineral deposits. The U-Pb isotopic data also serve to further refine the crystallization age of plutons, which were previously ambiguous in 40Ar/39Ar geochronology...
Core Research Center, core R874, from well operated by USGSRaw Properties from download, web scrape, MapServer, and Macrostrat API{"Lib Num": "R874", "API Num": null, "Operator": "USGS", "Well Name": "Y-12 NORRIS BASIN", "Field": "NORRIS BASIN", "State": "WY", "County": "YELLOWSTONE NATL PARK", "Type": "FULL", "Photos": "T", "Thin Sec": "T", "Analysis": "T", "Latitude": "44.6167", "Longitude": "-110.7", "coordinates_geohash": "9xcmbfnxp59q", "Source": "DERIVED FROM MAPPED LOCATION", "Security Flag": "NO SPECIAL RESTRICTIONS", "crc_collection_name": "core", "sb_parent_id": "4f4e49dae4b07f02db5e0486", "intervals": [{"Formation": "UNKNOWN", "Age": null, "Min Depth": "0", "Max Depth": "1088"}], "crcwc_url": "https://my.usgs.gov/crcwc/core/report/13008",...
Core Research Center, core W256, from well operated by NURE (BENDIX FIELD ENGINEERING)Raw Properties from download, web scrape, MapServer, and Macrostrat API{"Lib Num": "W256", "API Num": null, "Operator": "NURE (BENDIX FIELD ENGINEERING)", "Well Name": "SIERRA MADRE 12", "Field": "SIERRA MADRE", "State": "WY", "County": "CARBON", "Type": "FULL", "Photos": "F", "Thin Sec": "F", "Analysis": "T", "Latitude": "41.18386", "Longitude": "-106.94933", "coordinates_geohash": "9x7fq33c7gzw", "Source": "CENTER OF QUARTER SECTION", "Security Flag": "NO SPECIAL RESTRICTIONS", "crc_collection_name": "core", "sb_parent_id": "4f4e49dae4b07f02db5e0486", "intervals": [{"Formation": "MAGNOLIA", "Age": "PRECAMBRIAN", "Min Depth":...
Categories: Physical Item;
Tags: MAGNOLIA,
Mafic intrusive rocks,
PRECAMBRIAN,
PRECAMBRIAN,
SILVER LAKE METAVOLCANICS,
Core Research Center, core W247, from well operated by NURE (BENDIX FIELD ENGINEERING)Raw Properties from download, web scrape, MapServer, and Macrostrat API{"Lib Num": "W247", "API Num": null, "Operator": "NURE (BENDIX FIELD ENGINEERING)", "Well Name": "MEDICINE BOW 10", "Field": "MEDICINE BOW", "State": "WY", "County": "CARBON", "Type": "FULL", "Photos": "F", "Thin Sec": "F", "Analysis": "T", "Latitude": "41.55951", "Longitude": "-106.24258", "coordinates_geohash": "9xkkqmst8qnt", "Source": "CENTER OF QUARTER SECTION", "Security Flag": "NO SPECIAL RESTRICTIONS", "crc_collection_name": "core", "sb_parent_id": "4f4e49dae4b07f02db5e0486", "intervals": [{"Formation": "BOW RIVER QUARTZITE", "Age": "PRECAMBRIAN", "Min...
Categories: Physical Item;
Tags: BOW RIVER QUARTZITE,
METAGABBRO,
Mafic intrusive rocks,
PRECAMBRIAN,
PRECAMBRIAN,
This report provides detailed (1:63,360-scale) mapping of the Tanana B-1 Quadrangle (250 square miles; equivalent to four 7.5 minute quadrangles). The area is part of the Manley Hot Springs-Tofty mining districts and adjacent to the Rampart mining district to the north of the Tanana A-1 and A-2 Quadrangles. This report includes detailed geologic, structural, stratigraphic, and geochronologic data. Based on the resulting geologic maps, field investigations, and laboratory materials analyses, the project has also generated derivative maps of geologic construction materials and geologic hazards.
Core Research Center, core R736, from well operated by USGSRaw Properties from download, web scrape, MapServer, and Macrostrat API{"Lib Num": "R736", "API Num": null, "Operator": "USGS", "Well Name": "Y-2 FIREHOLE LAKE", "Field": "LOWER GEYSER BASIN", "State": "WY", "County": "YELLOWSTONE NATL PARK", "Type": "FULL", "Photos": "T", "Thin Sec": "T", "Analysis": "T", "Latitude": "44.533333", "Longitude": "-110.783333", "coordinates_geohash": "9xcjr5413nzw", "Source": "DERIVED FROM MAPPED LOCATION", "Security Flag": "NO SPECIAL RESTRICTIONS", "crc_collection_name": "core", "sb_parent_id": "4f4e49dae4b07f02db5e0486", "intervals": [{"Formation": "UNKNOWN", "Age": null, "Min Depth": "0", "Max Depth": "516"}], "crcwc_url":...
Core Research Center, core S682, from well operated by USGSRaw Properties from download, web scrape, MapServer, and Macrostrat API{"Lib Num": "S682", "API Num": null, "Operator": "USGS", "Well Name": "GS-3", "Field": null, "State": "NV", "County": "WASHOE", "Type": "DISCONTINUOUS SEGMENTS", "Photos": "T", "Thin Sec": "F", "Analysis": "F", "Latitude": "39.3877316986226", "Longitude": "-119.745431993329", "coordinates_geohash": "9r4b54k41jq7", "Source": "CENTER OF QUARTER SECTION", "Security Flag": "NO SPECIAL RESTRICTIONS", "crc_collection_name": "core", "sb_parent_id": "4f4e49dae4b07f02db5e0486", "intervals": [{"Formation": "UNKNOWN", "Age": null, "Min Depth": "2", "Max Depth": "686"}], "crcwc_url": "https://my.usgs.gov/crcwc/core/report/13730",...
Categories: Physical Item;
Tags: Felsic phaneritic intrusive rocks,
Jurassic - Miocene,
granodiorite,
monzonite,
plutonic,
This report presents 40Ar/39Ar step-heating geochronology results for igneous and metamorphic rocks from the Alaska Division of Geological & Geophysical Surveys' (DGGS) geologic mapping project in the Tanacross A-5 and A-6 quadrangles and adjoining areas. Our results indicate the Hona granodiorite pluton intruded the area in the Late Cretaceous between 76 and 71 Ma. We determined Cretaceous metamorphic ages from 126 to 121 Ma for hornblende, biotite, sericite and muscovite from multiple samples of upper greenschist to amphibolite grade rocks. This is consistent with regional argon results that imply this area is in the upper plate of the Yukon Tanana Terrane (Hansen and Dusel-Bacon, 1998). Basaltic andesite dikes...
In conjunction with hosting field trips for the Association of American State Geologists 2016 annual meeting in Girdwood, Alaska, Alaska Division of Geological & Geophysical Surveys (DGGS) staff collected rock samples and obtained geochemical analysis from several readily accessible, but relatively unstudied outcrops. Samples were collected from Turnagain Arm (mile 104 Seward Highway), Whittier, Crow Pass, and Panorama Mountain (roughly mile 217 Parks Highway). Mineralized samples from veins and veinlets in granitic rocks from the Crow Pass and Whittier sites contain anomalous levels of gold ranging from 0.129 to 0.650 parts per million (ppm). Although none of the samples are from areas open to mineral entry, geochemical...
In conjunction with hosting field trips for the Association of American State Geologists 2016 annual meeting in Girdwood, Alaska, Alaska Division of Geological & Geophysical Surveys (DGGS) staff collected rock samples and obtained geochemical analysis from several readily accessible, but relatively unstudied outcrops. Samples were collected from Turnagain Arm (mile 104 Seward Highway), Whittier, Crow Pass, and Panorama Mountain (roughly mile 217 Parks Highway). Mineralized samples from veins and veinlets in granitic rocks from the Crow Pass and Whittier sites contain anomalous levels of gold ranging from 0.129 to 0.650 parts per million (ppm). Although none of the samples are from areas open to mineral entry, geochemical...
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