Research Chemist
Office of the Chief Operating Officer
Email:
cconaway@usgs.gov
Office Phone:
650-329-4516
Fax:
650-329-4438
ORCID:
0000-0002-0991-033X
Supervisor:
David A Saad
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Geochemical data are reported for surface sediments and long sediment cores from Bellingham Bay, Whatcom County, Washington, collected in early February 2020 after flood conditions on the Nooksack River. Data include total organic carbon content (TOC), carbonate content (CaCO3), ratios of stable carbon 13/12 isotopes (d13C), ratios of total carbon to total nitrogen (C:N), short-lived cosmogenic radionuclide activities (Beryllium-7, Cesium-137, and excess Lead-210), and elemental chemistry.
Categories: Data;
Tags: Bellingham Bay,
CMHRP,
Coastal and Marine Hazards and Resources Program,
Geochemistry,
Mercury analysis, All tags...
Nooksack River,
PCMSC,
Pacific Coastal and Marine Science Center,
Radiometric dating,
Sediment geochemistry,
Stable isotope analysis,
Substrate,
U.S. Geological Survey,
USGS,
Whatcom County,
environment,
geochemistry,
geoscientificInformation,
grab sampling,
mass spectroscopy,
rare earth elements,
toxic trace element contamination, Fewer tags
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The Marcellus Shale Energy and Environment Laboratory (MSEEL) site is a long-term field site and laboratory at the Northeast Natural Energy LLC (NNE) production facility, adjacent to the Monongahela River, located in western Monongalia County, West Virginia, USA. NNE began drilling two horizontal production wells, MIP (Morgantown Industrial Park) -5H and MIP-3H, in the Marcellus Shale in 2014. The wells were completed in December 2015. Large volumes of wastewater are generated with natural gas production. These wastewaters contain organic and inorganic chemical constituents from fracturing fluids used during drilling and stimulation of gas in host rocks/shale, as well as chemical compounds that are derived from...
Categories: Data;
Tags: Energy Resources,
Environmental Health,
Geochemistry,
MSEEL, Marcellus Shale Energy and Environment Laboratory,
Morgantown, All tags...
USGS Science Data Catalog (SDC),
Water Quality,
West Virginia,
aluminum,
arsenic,
barium,
boron,
cadmium,
calcium,
chemical analysis,
chromatography,
chromium,
cobalt,
copper,
dissolved metals,
dissolved organic compounds,
environment,
geochemistry,
hydraulic fracturing,
iron,
isotope geochemistry,
isotopic analysis,
laboratory experiments,
laboratory methods,
lead,
lithium,
magnesium,
manganese,
mercury,
molybdenum,
natural gas resources,
nickel,
phosphorus,
potassium,
selenium,
silicon,
sodium,
strontium,
sulfur,
suspended material (water),
thallium,
toxic trace element contamination,
uranium,
vanadium,
water chemistry,
water pH,
water properties,
water temperature,
zinc, Fewer tags
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<p>The overall objective of my research is to understand the movement and quality of surface and groundwater using geochemical approaches. Some key issues that are considered in this research are the environmental aspects of energy and mineral resources, climate change, and carbon cycling and sequestration. The geochemical approaches that are used in this research include the use of isotopic tracers, trace elements, and radioisotopes. My research has focused on the sampling and analysis of produced waters from geologic carbon sequestration studies, geochemical characterization of sediment transport in the coastal zone, the environmental chemistry of mercury in coastal regions, and water quality analysis for samples...
Categories: Project;
Tags: Aqueous Geochemistry,
Biogeochemistry,
Carbon Cycling and Sequestration,
Energy Resources and Water Quality,
Groundwater Flow and Transport, All tags...
Isotope Hydrology,
Metals,
Nearshore Environments,
Radioisotopes,
Wetlands, Fewer tags
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Sediment grain-size distributions, stable carbon isotope ratios (d13C), total carbon to total nitrogen ratios (C:N), short-lived radionuclides (Beryllium-7, Cesium-137, and Lead-210), concentrations of 76 parent and alkylated polycyclic aromatic hydrocarbons (PAHs) and concentrations of 33 per- and polyfluoroalkyl substances (PFAS) were measured in the northern reach of San Francisco Bay (San Pablo and Suisun Bays), and in stream beds of the lower reaches of Napa River and Sonoma Creek, 5 months and 20 months after the 2017 Atlas and Nuns wildfires. New sites for sediment geochemistry analyses added 20 months post-fire included the lower reaches of Petaluma Creek and Suisun Slough, and in marsh sediment on Napa...
Categories: Data;
Tags: Carquinez Straight,
Environmental Health,
Geochemistry,
Grizzly Bay,
Napa River, All tags...
National Wildlife Refuge,
San Francisco Bay,
San Pablo Bay,
Soil Sciences,
Sonoma Creek,
Substrate,
Suisun Bay,
Water Quality,
bay,
carbon isotope analysis,
environment,
estuary,
fires,
geochemistry,
geoscientificInformation,
marsh, Fewer tags
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