Ocean Drilling Program Leg 112, Peru continental margin: Part 1, Tectonic history

Research Article| October 01, 1988 Ocean Drilling Program Leg 112, Peru continental margin: Part 1, Tectonic history R. von Huene; R. von Huene 1U.S. Geological Survey, Menlo Park, California 94025 Search for other works by this author on: GSW Google Scholar E. Suess E. Suess 2College of Oceanography, Oregon State University, Corvallis, Oregon 97331 Search for other works by this author on: GSW Google Scholar Author and Article Information R. von Huene 1U.S. Geological Survey, Menlo Park, California 94025 E. Suess 2College of Oceanography, Oregon State University, Corvallis, Oregon 97331 Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1988) 16 (10): 934–938. https://doi.org/10.1130/0091-7613(1988)016<0934:ODPLPC>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 Email Permissions Search Site Citation R. von Huene, E. Suess; Ocean Drilling Program Leg 112, Peru continental margin: Part 1, Tectonic history. Geology 1988;; 16 (10): 934–938. doi: https://doi.org/10.1130/0091-7613(1988)016<0934:ODPLPC>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 Studies of Ocean Drilling Program Leg 112 cores and geophysical data define early Eocene-Quaternary normally faulted, continental sediment sequences across the Peru margin to the middle slope, and a 15-km-wide late Miocene-Quaternary accretionary complex beneath the lower slope. The Eocene shelf and upper-slope sea floor were eroded during the Oligocene, and in middle Miocene the seaward part had subsided to lower slope depths. This subsidence and the missing Paleogene continental slope indicate tectonic erosion during normal plate convergence. Subduction of the Nazca Ridge locally accelerated tectonic erosion, leaving a scarp but no associated compressional structure nearby. Late Miocene sediment accreted against the erosional scarp. Local tectonic mechanisms of forearc basin subsidence are suggested by the rapid subsidence of a late Miocene forearc basin and stability of the adjacent one despite similar histories of plate convergence. 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.