Research Geologist Mendenhall
Email:
ngriffis@usgs.gov
ORCID:
0000-0002-2506-7549
Location
Box 25046
Denver Federal Center
Denver
, CO
80225
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The dataset consists of geochemical and isotopic data from fine-grained sediments and glendonite crystals collected at Carter Creek on the North Slope of Alaska. Total Organic Carbon (TOC) values in the measured section were found to range between 0.5 and 3.5%, with a shift towards lower values in the uppermost 5 m of the section. Stable isotopes (13C) in organic matter were relatively stable throughout the section, ranging between -25.5 and -26, with a slight 0.3 per mil positive shift within this range approximately 57 m from the base of the section. Glendonites themselves were analyzed for δ13Ccarb and δ18Ocarb, with δ18O values relatively consistent between -0.22 and +1.28, and a much wider range of δ13C values...
Categories: Data;
Tags: Alaska,
Arctic,
Carter Creek,
Colville Foreland Basin,
Energy Resources, All tags...
Geochemistry,
North Slope,
Oligocene,
USGS Science Data Catalog (SDC),
calcite,
glendonite,
ikaite,
isotope,
mineralogy,
raman,
sedimentology, Fewer tags
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Geochemical data include major, minor and trace element results for 42 alkaline silicate igneous rock samples. Samples were collected from natural exposures/outcrops during field work in the Central Montana Alkaline Province (CMAP) during the summer of 2022. All samples were analyzed by the U.S. Geological Survey contract laboratory, SGS Labs. Major, minor, and trace elements were determined via wavelength dispersive X-ray fluorescence (WDXRF), inductively coupled plasma-optical emission spectrometry (ICP-OES) and inductively coupled plasma-mass spectrometry (ICP-MS). Additional analytes determined were carbonate carbon by combustion and infrared detection (IR); gold, platinum, and palladium by lead fusion fire...
Categories: Data;
Tags: CMAP,
Central Montana Alkalic Province,
Crazy Mountains,
Crazy Peak,
GGGSC, All tags...
Geochemistry,
Geology, Geophysics, and Geochemistry Science Center,
Judith Mountains,
Judith Peak,
MRP,
Mineral Resources,
Mineral Resources Program,
Montana,
USGS,
USGS Science Data Catalog (SDC),
United States,
United States Geological Survey,
alkaline complexes,
chemical analysis,
critical elements,
critical minerals,
exploration geochemistry,
geochemical data,
geochemistry,
geoscientificInformation,
igneous rocks,
mineral resources,
natural resource exploration,
petrology,
rock chemistry,
whole-rock, Fewer tags
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This dataset accompanies planned publication titled "The Far-Field imprint of the LPIA, its demise, and the onset of a dust-house climate across the Eastern Shelf of the Permian Basin". Zircon ages presented in this dataset are from rocks collected across the eastern margin of the Permian Basin, Texas. The U-Pb zircon ages are used to investigate changes in provenance in this region as a result of a changing hydroclimate and tectonics. Samples were collected from this region by Neil Griffis and Neil Tabor between March 2019 and April 2021. The data were collected at the University of California, Davis and the University of Texas, Austin between April 2019 and August 2021.
Categories: Data;
Tags: "Sedimentology"],
Detrital Zircon Geochronology,
GGGSC,
Geology, Geophysics, and Geochemistry Science Center,
LA-ICP-MS, All tags...
Late Paleozoic,
MRP,
Mineral Resources Program,
Permian Basin,
Permian Basin, Texas,
Seymour, Texas,
Texas,
U-Pb,
U.S. Geological Survey,
USGS,
USGS Science Data Catalog (SDC),
["Geochemistry",
geochronology,
mass spectrometry,
radiometric dating,
transportation, Fewer tags
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This dataset contains results from a stratigraphic section of the Hue Shale located along the Jago River in the Arctic National Wildlife Refuge at 69.9099, -143.3947 (WGS84). Sample heights were measured with a tape measure in a continuous succession. Zircon grains from volcanic ashes were analyzed via laser ablation at either the University of California, Santa Barbara (UCSB) or the University of Arizona Laserchron Center (ALC) using a Photon Machines Analyte 193-nm Excimer laser and Nu Instruments Plasma HR MC-ICPMS. Zircon grains from volcanic ashes were analyzed via chemical abrasion at the Berkeley Geochronology Center using a Sector 54 TIMS. Bulk mudstone samples were subject to a variety of analyses. Total...
Categories: Data;
Tags: Alaska,
Atomic emission spectroscopy,
Brooks Range,
Carbon isotope analysis,
Energy Resources, All tags...
GeoScientificInformation,
Geochemistry,
Geochemistry,
Geochronology,
Geology,
Isotopic analysis,
Mass spectroscopy,
North Slope,
Ocean/lake records,
Paleoclimate,
Radiometric dating,
Stratigraphic sequence,
U-Pb,
USGS Science Data Catalog (SDC),
Uranium-lead analysis,
Volcanic zircon, Fewer tags
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