Spatial coincidence of rapid inferred erosion with young metamorphic massifs in the Himalayas

Abstract

Research Article| March 01, 2002 Spatial coincidence of rapid inferred erosion with young metamorphic massifs in the Himalayas David P. Finlayson; David P. Finlayson 1Quaternary Research Center and the Department of Earth and Space Sciences, University of Washington, Seattle, Washington 98195, USA Search for other works by this author on: GSW Google Scholar David R. Montgomery; David R. Montgomery 1Quaternary Research Center and the Department of Earth and Space Sciences, University of Washington, Seattle, Washington 98195, USA Search for other works by this author on: GSW Google Scholar Bernard Hallet Bernard Hallet 1Quaternary Research Center and the Department of Earth and Space Sciences, University of Washington, Seattle, Washington 98195, USA Search for other works by this author on: GSW Google Scholar Author and Article Information David P. Finlayson 1Quaternary Research Center and the Department of Earth and Space Sciences, University of Washington, Seattle, Washington 98195, USA David R. Montgomery 1Quaternary Research Center and the Department of Earth and Space Sciences, University of Washington, Seattle, Washington 98195, USA Bernard Hallet 1Quaternary Research Center and the Department of Earth and Space Sciences, University of Washington, Seattle, Washington 98195, USA Publisher: Geological Society of America Received: 24 May 2001 Revision Received: 22 Oct 2001 Accepted: 19 Nov 2001 First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (2002) 30 (3): 219–222. https://doi.org/10.1130/0091-7613(2002)030<0219:SCORIE>2.0.CO;2 Article history Received: 24 May 2001 Revision Received: 22 Oct 2001 Accepted: 19 Nov 2001 First Online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation David P. Finlayson, David R. Montgomery, Bernard Hallet; Spatial coincidence of rapid inferred erosion with young metamorphic massifs in the Himalayas. Geology 2002;; 30 (3): 219–222. doi: https://doi.org/10.1130/0091-7613(2002)030<0219:SCORIE>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 A spatially distributed rate-of-erosion index (EI) based on models of bedrock river incision documents a strong spatial correspondence between areas of high erosion potential and young metamorphic massifs as well as structural highs throughout the Himalayas. The EI is derived from slopes and drainage areas calculated from a hydrologically corrected digital elevation model (GTOPO30) combined with precipitation data (IIASA) to generate synthetic annual stream discharges. These variables drive three generalized process models to produce EI maps that, while differing in detail, provide an internally consistent, spatially continuous index of large-scale erosion rates. The large spatial variation in potential erosion rates in the Himalayas suggested by the EI patterns contrasts with the uniform convergence of the Indian subcontinent. If these EI gradients persist through time, they support the emerging view of a positive feedback between localized, rapid erosion and upward advection of lower crust. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.

Keywords

Affiliated Institutions

• Earth and Space Research US
• University of Washington US

Related Publications