Supervisory Research Geologist
Geology, Energy & Minerals Science Center
Email:
wcraddock@usgs.gov
Office Phone:
703-648-6515
Fax:
703-648-6404
ORCID:
0000-0002-4181-4735
Location
John W Powell FB
12201 Sunrise Valley Drive
Reston
, VA
20192-0002
US
Supervisor:
Evan A Bargnesi
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This data release contains apatite and zircon U/Pb and fission track data for six samples collected along the Fall Line of the southeastern United States, from Virginia to the Georgia-South Carolina border. The data resolve phases of rapid exhumational cooling in the Permo-Triassic, additional cooling in the Jurassic-Early Cretaceous and slower cooling since the middle of the Cretaceous. The data are also compatible with an episode of burial/magmatic heating in the Triassic-Jurassic. Overall, these data may explain the lack of preserved Upper Jurassic-earliest Cretaceous strata beneath onshore areas of the southeastern United States.
Categories: Data;
Tags: City of Richmond,
Columbia County,
Energy Resources,
Halifax County,
Harnett County, All tags...
Nash County,
Richland County,
Stratigraphy,
USGS Science Data Catalog (SDC),
apatite,
fission-track dating,
plutonic rock,
uranium-lead analysis,
zircon, Fewer tags
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This data release contains 60 detrital zircon age spectra, based on U and Pb isotope ratio measurements for 9399 single grains. The samples are from Paleogene strata of the U.S. Gulf Coast. Of the 9399 single grain measurements, we recommend that 8640 yield ages that are suitable for construction of detrital zircon age spectra. Comments tagged to individual grains explain the reasoning for exclusion of a single grain measurement from age spectra, mostly including high discordance and/or uncertainty. The samples were collected along the strike of the U.S. Gulf Coast basin between western Alabama (the eastern U.S. Gulf Coast) and the Rio Grande river (the southwestern boundary of the U.S. Gulf Coast). The highest...
Categories: Data;
Tags: Alabama,
Arkansas,
Energy Resources,
Kentucky,
Mississippi, All tags...
Tennessee,
Texas,
U.S. Gulf Coast,
USGS Science Data Catalog (SDC),
basin analysis,
detrital zircon geochronology,
provenance,
sediment routing,
sedimentary geology, Fewer tags
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The USGS Gulf Coast Source Rock Database (GCSRD) is an online repository for all publicly available source rock data (outcrop and subsurface) from the states of Florida, Georgia, Alabama, Mississippi, Louisiana, Arkansas, and Texas. "Source rock data" are defined in this context as data that include any of the following measured or calculated parameters: -total organic carbon (TOC), -various pyrolysis measurements (Tmax, S1, S2, S3, HI, OI), -vitrinite or bitumen reflectance values. All data in the GCSRD have been extracted from previously published peer-reviewed literature or as USGS-released data sets; no new measurements are included. The underlying data set is presented as an interactive, map-view application...
Categories: Data,
Data Release - Revised;
Tags: Alabama,
Louisiana,
Mississippi,
Texas,
USGS Science Data Catalog (SDC), All tags...
cenozoic,
core analysis,
earth sciences,
energy resources,
geology,
mesozoic,
natural gas resources,
natural resource exploration,
natural resource extraction,
natural resources,
oil resources,
sedimentology, Fewer tags
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The United States Gulf Coast Basin Curated Wells and Logs Database (CWLDB) is an online repository with stratigraphic information for petroleum wells in the United States portion of the onshore Gulf of Mexico Basin that provides several of the following attributes: a) deep penetrations (generally, total depth of 10,000 feet or more), b) high quality and diverse geophysical well log suites, c) lithostratigraphic logs, d) biostratigraphic units (biozones) and reports, and/or e) core or cuttings samples. First release: March 2023 Revised: November 2023 (ver. 2.0) Revised: July 2024 (ver. 3.0)
Categories: Data;
Tags: Alabama,
Florida,
Louisiana,
Mississippi,
Texas, All tags...
USGS Science Data Catalog (SDC),
biostratigraphy,
core cuttings,
faunal and floral census (microscopic),
formation,
fossils,
geochemistry,
geology,
geophysical well logs,
geophysics,
geoscientificInformation,
lithostratigraphy,
micropaleontology,
petrography,
reservoir conditions,
reservoir properties,
unconformities, Fewer tags
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To better understand the possible risks posed to shallow groundwater resources by geologic carbon sequestration (GCS), a multi-scale numerical modeling approach was invoked using the TOUGHREACT code from Lawrence Berkeley National Laboratory. The code solves coupled equations representing conservation of mass and energy on a finite difference grid to simulate multiphase, multicomponent, non-isothermal heat and mass transport in porous media. Two different two-dimensional cross-section modeling domains were constructed to improve understanding of groundwater flow and contaminant transport processes at a field site in soutwestern Utah. The site represents a natural analogue for leakage from a GCS site because water...
Tags: CO2 Sequestration,
Energy Resources,
Groundwater,
Groundwater Model,
Multiphase Flow, All tags...
Reactive Transport,
St. George,
TOUGHREACT,
USGS Science Data Catalog (SDC),
Utah,
Virgin River Basin,
Washington County,
environment,
geoscientificInformation,
inlandWaters,
usgsgroundwatermodel, Fewer tags
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