Geologic and paleomagnetic evidence for a possible Miocene collision in western Panay, central Philippines

Abstract

Research Article| June 01, 1982 Geologic and paleomagnetic evidence for a possible Miocene collision in western Panay, central Philippines Robert McCabe; Robert McCabe 1Department of Geological Sciences, University of California, Santa Barbara, California 93016 Search for other works by this author on: GSW Google Scholar Jose Almasco; Jose Almasco 2Philippines Bureau of Mines and Geo-Sciences, Pedro Gill, Manila, Philippines Search for other works by this author on: GSW Google Scholar Wilfredo Diegor Wilfredo Diegor 3Philippines Bureau of Mines and Geo-Sciences, Cebu City, Cebu, Philippines Search for other works by this author on: GSW Google Scholar Author and Article Information Robert McCabe 1Department of Geological Sciences, University of California, Santa Barbara, California 93016 Jose Almasco 2Philippines Bureau of Mines and Geo-Sciences, Pedro Gill, Manila, Philippines Wilfredo Diegor 3Philippines Bureau of Mines and Geo-Sciences, Cebu City, Cebu, Philippines Publisher: Geological Society of America First Online: 01 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1982) 10 (6): 325–329. https://doi.org/10.1130/0091-7613(1982)10<325:GAPEFA>2.0.CO;2 Article history First Online: 01 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Robert McCabe, Jose Almasco, Wilfredo Diegor; Geologic and paleomagnetic evidence for a possible Miocene collision in western Panay, central Philippines. Geology 1982;; 10 (6): 325–329. doi: https://doi.org/10.1130/0091-7613(1982)10<325:GAPEFA>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 The Palawan metamorphic terrane, represented by Paleozoic basement on the northwestern tip of Panay, central Philippines, collided with the remainder of the island between late Oligocene and middle Miocene time. Subduction continued north and south of the collision zone, along the Manila and Negros trenches, respectively. Evidence for the collision is (1) the juxtaposition along a major fault of old melange terrane against highly metamorphosed Paleozoic continental sediments similar to those exposed on Palawan island itself, and (2) Miocene thrusting in the melange terrane oriented parallel to the suture.Paleomagnetic studies show that since the early Miocene the island of Panay has rotated 20° clockwise (declination 20.9°, inclination 22.1° for six sites), whereas the northern Philippines has rotated counterclockwise. These contrasting rotations are consistent with a collision of the Philippine arc with a northeastward-converging Palawan block. 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.