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Filters Date Range Past year (0) Past month (0) Past week (0) Past day (0) Custom range... To   Search Extensions ArcGIS Service Definition (1) Types ArcGIS REST Map Service (1) ArcGIS Service Definition (1) Map Service (1) Contacts Karen Lund John N Aleinikoff Geology, Geophysics, and Geochemistry Science Center Michael A Cosca Ryan J McAleer More... Categories Data (1) Tag Types Theme (1) Place (1) USGS Scientific Topic Keyword (1) Harvest Set (1) Tag Schemes None (1) USGS Thesaurus (1) Common geographic areas (1) ISO 19115 Topic Category (1) View Results as: JSON ATOM CSV

U-Pb SHRIMP and 40Ar/39Ar geochronologic data and backscatter electron (BSE) and panchromatic cathodoluminescent (CL) imagery of sample materials for study of dikes, country rock, and alteration systems, Butte, U.S.A. These data are for a multidisciplinary study of dikes, country rock, and alteration systems, Butte, U.S.A. Results of the study are described and interpreted in Lund and others (2018). Data included are U-Pb SHRIMP geochronology for quartz porphyry dikes, 40Ar/39Ar thermochronologic data for biotite, hornblende, and K-feldspar from Butte granite country rock, and 40Ar/39Ar thermochronologic data for white mica and K-feldspar from alteration zones around lode veins. Also included are backscatter electron (BSE) and panchromatic cathodoluminescent (CL) imagery of minerals from samples dated by 40Ar/39Ar. These data are shared to meet open data requirements for interpretive report: Lund, K., McAleer, R.J., Aleinikoff,... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: 40Ar/39Ar geochronology, 40Ar/39Ar geochronology, Ag-polymetallic lodes, BSC, Butte, All tags... CL, Cu lodes, GGGSC, Geology, Geophysics, and Geochemistry Science Center, MRP, Mineral Resources Program, Mineralogy, Montana, SHRIMP, SHRIMP, Sensitive high-resolution ion microprobe, Structural Geology, U-Pb geochronology, U-Pb geochronology, USGS Science Data Catalog (SDC), United States, alteration, backscatter electron, copper, economic geology, geochronology, geoscientificInformation, molybdenum, panchromatic cathodoluminescent, quartz porphyry dikes, radiometric dating, silver, Fewer tags