Water chemistry data from the Big Creek and Monumental Creek tributaries of the Lower Middle Fork Salmon River, Idaho, 2021

This USGS data release evaluates the impact of historical mining sites on water quality using samples collected in late July 2021 from Big Creek tributaries Coin Creek, Smith Creek, and Monumental Creek in Valley County, Idaho. These data were collected to support a fisheries mining impact assessment in the Middle Fork Salmon River. Specific conductance, pH, and stream temperature were measured in the field. Analyses include major cations and anions, alkalinity, trace metals, total mercury, and methylmercury.

Categories: Data; Tags: "Geochemistry", "Land Use Change", "Water Quality"], Beaver Creek, Big Creek, All tags... East Fork South Fork Salmon River, GGGSC, Geology, Geophysics, and Geochemistry Science Center, Idaho, Idaho, MRP, Middle Fork Salmon, Mineral Resources Program, Monumental Creek, Salmon River, Smith Creek, Stibnite, Sugar Creek, Trap Creek, U.S. Geological Survey, USGS, USGS Science Data Catalog (SDC), Valley County, West Fork Monumental Creek, ["Environmental Health", abandoned mines and quarries, arsenic, mercury, methylmercury, mine drainage, mining water use, non-point source pollution, water chemistry, water quality, water sampling, Fewer tags

Legacy Geochemical Data from Hardcopy Records of Selected Past U.S. Geological Survey Projects

This data release contains geochemical data from selected U.S. Geological Survey (USGS) projects from the 1960s-1980s that were previously unpublished as digital data. The objective of those projects was to describe the geology, determine petrologic and geochemical characteristics, or to evaluate the mineral resource potential of Federal Lands and adjacent study areas. These data comprise geochemical analyses from 36,498 samples--27,223 rock samples, 4,091 sediment samples, 2,351 soil samples, 330 heavy-mineral pan concentrate samples, 297 organic material samples, 58 mineral samples, 27 water samples, 11 miscellaneous samples, and 2,110 unspecified media samples. More than 78 percent of these samples were analyzed...

Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: "Geochemistry", "Mineral Resources"], Alaska, California, Colorado, All tags... GGGSC, Geology, Geophysics, and Geochemistry Science Center, Idaho, MRP, Mineral Resources Program, Missouri, Montana, NGDB, National Geochemical Database, Nevada, New Mexico, USGS Science Data Catalog (SDC), United States, Utah, Washington, West Virginia, Wisconsin, Wyoming, ["Economic Geology", alkali metal elements, alkaline earth elements, aluminum, antimony, arsenic, atomic absorption analysis, atomic emission spectroscopy, barium, beryllium, bismuth, boron, bromine, cadmium, calcium, cerium, chemical analysis, chlorine, chromium, cobalt, copper, dysprosium, economic geology, erbium, europium, exploration geochemistry, fluorine, gadolinium, gallium, geochemical data, geochemistry, geoscientificInformation, germanium, gold, hafnium, halogen elements, holmium, igneous rocks, indium, iodine, iridium, iron, lanthanide series elements, lanthanum, lead, lithium, lutetium, magnesium, manganese, mercury, metal elements, metamorphic rocks, mineral deposits, mineral resources, molybdenum, neodymium, nickel, niobium, nonmetal elements, palladium, pan concentrate, phosphorus, platinum, platinum-group elements, plutonic rocks, potassium, praseodymium, rare earth elements, rhenium, rhodium, rock geochemistry, ruthenium, samarium, scandium, sediment geochemistry, sedimentary rocks, selenium, silicon, silver, sodium, stream sediment, strontium, sulfur, tantalum, tellurium, terbium, thallium, thorium, thulium, tin, titanium, tungsten, unconsolidated deposits, uranium, vanadium, volcanic rocks, x-ray fluorescence, ytterbium, yttrium, zinc, zirconium, Fewer tags

Stream Temperature, Conductivity, eDNA, and Streamflow Data from the Big Creek and Monumental Creek Tributaries of the Lower Middle Fork Salmon River, Idaho 2021

This U.S. Geological Survey (USGS) data release is an assessment of aquatic habitat within the tributaries of the lower Middle Fork Salmon River. These datasets are primarily focused on physical stream habitat (2020-21 stream temperature data) and the presence or absence (2021 eDNA data) of fish that inhabit the basin. Many environmental stressors contribute to the declining range and density of Bull trout (S. confluentus) populations, one of which is the toxic trace metals contributions from legacy mine waste and adits. These data were collected in stream habitats with variable physical and thermal conditions. Characterizing and comparing reference streams of similar physical attributes will assist to differentiate...

Categories: Data; Tags: "Environmental Health", "Genetics", "Geochemistry", "Hydrology", "Water Quality"], All tags... Aquatic Biology, Beaver Creek, Biota, Freshwater Ecosystems, GGGSC, Geology, Geophysics, and Geochemistry Science Center, Idaho, MRP, Middle Fork Salmon River, Mineral Resources Program, Monumental Creek, Population Dynamics, Salmon River, Smith Creek, Streamflow, Sugar Creek, Trap Creek, U.S. Geological Survey, USGS, USGS Science Data Catalog (SDC), Valley County, Water Quality, Water Temperature, West Fork Monumental Creek, ["Aquatic Biology", Fewer tags

Geochemical data for stream water samples from streams around the Pogo Deposit and Black Mountain Au occurrences, Big Delta quadrangle, Alaska, 2021

This data release is the result of a hydrogeochemical sampling campaign during summer 2021 to investigate whether high resolution geochemical analysis of waters for element chemistry can be used as an exploration tool for identifying gold-rich occurrences in parts of the Big Delta B-1 and B-2 quadrangles, within the Yukon-Tanana Upland region, Alaska. Historical USGS conventional stream sediment geochemical data yielded variable indications of geochemical anomalies in conventional stream sediment geochemistry results, probably related to relative exposure of mineralized rock. Previous studies of waters in the Pogo area (western part of current study) utilized conventional analytical methods not capable of measuring...

Categories: Data; Tags: "Geochemistry", "Mineral Resources"], Alaska, Big Delta, GGGSC, All tags... Geology, Geophysics, and Geochemistry Science Center, HR-ICP-MS, IC, MRP, Mineral Resources Program, Southeast Fairbanks, U.S. Geological Survey, USGS, USGS Science Data Catalog (SDC), ["Economic Geology", geochemistry, geoscientificInformation, high resolution inductively coupled plasma mass spectrometry, ion chromatography, metallic mineral resources, mineral deposits, stream sediment geochemistry, stream water geochemistry, unconsolidated deposits, Fewer tags