Dynamic equilibrium among erosion, river incision, and coastal uplift in the northern and central Apennines, Italy

Research Article| February 01, 2008 Dynamic equilibrium among erosion, river incision, and coastal uplift in the northern and central Apennines, Italy Andrew J. Cyr; Andrew J. Cyr 1Department of Earth and Atmospheric Sciences, Purdue University, West Lafayette, Indiana 47907, USA Search for other works by this author on: GSW Google Scholar Darryl E. Granger Darryl E. Granger 1Department of Earth and Atmospheric Sciences, Purdue University, West Lafayette, Indiana 47907, USA Search for other works by this author on: GSW Google Scholar Author and Article Information Andrew J. Cyr 1Department of Earth and Atmospheric Sciences, Purdue University, West Lafayette, Indiana 47907, USA Darryl E. Granger 1Department of Earth and Atmospheric Sciences, Purdue University, West Lafayette, Indiana 47907, USA Publisher: Geological Society of America Received: 01 May 2007 Revision Received: 14 Sep 2007 Accepted: 01 Oct 2007 First Online: 09 Mar 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 The Geological Society of America, Inc. Geology (2008) 36 (2): 103–106. https://doi.org/10.1130/G24003A.1 Article history Received: 01 May 2007 Revision Received: 14 Sep 2007 Accepted: 01 Oct 2007 First Online: 09 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Andrew J. Cyr, Darryl E. Granger; Dynamic equilibrium among erosion, river incision, and coastal uplift in the northern and central Apennines, Italy. Geology 2008;; 36 (2): 103–106. doi: https://doi.org/10.1130/G24003A.1 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 Erosion, river incision, and uplift rates in the northern and central Apennines, Italy, since 0.9 Ma, are determined from new cosmogenic nuclide data. Beryllium-10 concentrations in modern and middle Pleistocene sediments indicate erosion rates from 0.20 to 0.58 mm/yr. These rates are similar to estimates of sediment yield (0.12–0.44 mm/yr), river incision (0.35 mm/yr), and uplift (0.01–1.0 mm/yr) rates inferred from other methods that integrate landscape process rates since the early Pleistocene. These rates of landscape change are significantly lower than long-term exhumation rates of ∼1.2 mm/yr since ca. 4.5 Ma, inferred from thermochronometry. Collectively, these data suggest that hillslope erosion and river incision rates in the northern and central Apennines have balanced local uplift rates for ∼1 My, but that exhumation rates have slowed significantly since emergence of the mountain chain in the Pliocene. This condition of dynamic equilibrium was potentially achieved within ca. 3 Ma, similar to some model predictions of hillslope and fluvial system adjustment. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.