Exhumation as fast as subduction?

Research Article| January 01, 2001 Exhumation as fast as subduction? Daniela Rubatto; Daniela Rubatto 1Research School of Earth Sciences, Australian National University, Canberra, 0200 ACT, Australia Search for other works by this author on: GSW Google Scholar Jörg Hermann Jörg Hermann 1Research School of Earth Sciences, Australian National University, Canberra, 0200 ACT, Australia Search for other works by this author on: GSW Google Scholar Author and Article Information Daniela Rubatto 1Research School of Earth Sciences, Australian National University, Canberra, 0200 ACT, Australia Jörg Hermann 1Research School of Earth Sciences, Australian National University, Canberra, 0200 ACT, Australia Publisher: Geological Society of America Received: 23 Jun 2000 Revision Received: 21 Sep 2000 Accepted: 04 Oct 2000 First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (2001) 29 (1): 3–6. https://doi.org/10.1130/0091-7613(2001)029<0003:EAFAS>2.0.CO;2 Article history Received: 23 Jun 2000 Revision Received: 21 Sep 2000 Accepted: 04 Oct 2000 First Online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Daniela Rubatto, Jörg Hermann; Exhumation as fast as subduction?. Geology 2001;; 29 (1): 3–6. doi: https://doi.org/10.1130/0091-7613(2001)029<0003:EAFAS>2.0.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 We produced a pressure-temperature-time path in order to determine the exhumation rate of the deepest subducted Alpine rocks. In situ dating of peak-metamorphic titanite in an eclogite facies calc-silicate rock indicates that subduction to pressures of ∼3.5 GPa was reached at 35.1 ± 0.9 Ma. Titanite formed during two decompression stages, at 1 ± 0.15 GPa and ∼0.4–0.5 GPa, and yielded ages of 32.9 ± 0.9 Ma and 31.8 ± 0.5 Ma, respectively. Combining the age data and making assumptions about the conversion of pressure to depth yield mean exhumation rates of 3.4 cm/yr and 1.6 cm/yr. These rates imply that exhumation acted at plate tectonic speeds similar to subduction, and was significantly faster than erosion. We suggest that fast exhumation is driven by a combination of tectonic processes involving buoyancy and normal faulting. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.