Thermochronologic record of pluton emplacement, deformation, and exhumation at Courtright shear zone, central Sierra Nevada, California

Research Article| April 01, 1993 Thermochronologic record of pluton emplacement, deformation, and exhumation at Courtright shear zone, central Sierra Nevada, California Paul R. Renne; Paul R. Renne 1Institute of Human Origins Geochronology Center, 2453 Ridge Road, Berkeley, California 94709 Search for other works by this author on: GSW Google Scholar Othmar T. Tobisch; Othmar T. Tobisch 2Department of Earth Sciences, University of California, Santa Cruz, California 95064 Search for other works by this author on: GSW Google Scholar Jason B. Saleeby Jason B. Saleeby 3Department of Earth and Planetary Sciences, California Institute of Technology, Pasadena, California 91125 Search for other works by this author on: GSW Google Scholar Author and Article Information Paul R. Renne 1Institute of Human Origins Geochronology Center, 2453 Ridge Road, Berkeley, California 94709 Othmar T. Tobisch 2Department of Earth Sciences, University of California, Santa Cruz, California 95064 Jason B. Saleeby 3Department of Earth and Planetary Sciences, California Institute of Technology, Pasadena, California 91125 Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1993) 21 (4): 331–334. https://doi.org/10.1130/0091-7613(1993)021<0331:TROPED>2.3.CO;2 Article history First Online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Paul R. Renne, Othmar T. Tobisch, Jason B. Saleeby; Thermochronologic record of pluton emplacement, deformation, and exhumation at Courtright shear zone, central Sierra Nevada, California. Geology 1993;; 21 (4): 331–334. doi: https://doi.org/10.1130/0091-7613(1993)021<0331:TROPED>2.3.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract Thermochronology and thermobarometry of two plutons and a ductile shear zone at their contact in the central Sierra Nevada, California, as defined over the range 700 to 300 °C by 40Ar/39Ar dating of hornblende and biotite and U-Pb dating of zircon, indicate that ductile shear coincided closely with dramatically increased cooling and possible decompression of both plutons. Deformation occurred as the younger (∼90 Ma) Mount Givens pluton was emplaced against the older (∼102 Ma) Dinkey Creek pluton, which was softened by conductive heating, during extension. These events coincided with significant regional exhumation, possibly a result of crustal inflation, recorded by a major pulse of rapid sediment accumulation in contemporaneous fore-arc strata of the Great Valley sequence. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.