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Filters Date Types (for Date Range) Contacts John W Counts Geology, Energy & Minerals Science Center U.S. Geological Survey William H Craddock U.S. Geological Survey - ScienceBase Jared T Gooley Energy and Minerals Categories Data (1) Tag Types Theme (1) Place (1) Harvest Set (1) USGS Scientific Topic Keyword (1) Tag Schemes None (1) Common geographic areas (1) ISO 19115 Topic Category (1) View Results as: JSON ATOM CSV

Detrital Zircon U-Pb and Hf isotope data from selected Appalachian rivers This data release contains zircon U-Pb (n=1467) and Hf (n=332) data for five modern rivers (Connecticut, Susquehanna, Roanoke, Peedee, and Chattahoochee) draining the Appalachian mountain belt. The data show that zircon crystallization ages are characterized by several discrete populations that often correspond with orogenic episodes in the Mesoproterozoic and Paleozoic, with distinct differences between the various rivers sampled. ɛHf values are more consistent geographically, but differ between the Grenville and Paleozoic (Taconic, Acadian, and Alleghenian) orogenies. Categories: Data; Tags: Chattahoochee, Connecticut, Connecticut, Energy Resources, Georgia, All tags... Maryland, North Carolina, Roanoke, South Carolina, Susquehanna, USGS Science Data Catalog (SDC), detrital, fluvial, geochronology, geoscientificInformation, inlandWaters, provenance, sand, sediment, zircon, Fewer tags