Magnetostratigraphic correlation of the Lincoln Creek Formation, Washington: Implications for the age of the Eocene/Oligocene boundary

Abstract

Research Article| March 01, 1985 Magnetostratigraphic correlation of the Lincoln Creek Formation, Washington: Implications for the age of the Eocene/Oligocene boundary Donald R. Prothero; Donald R. Prothero 1Department of Geology, Knox College, Galesburg, Illinois 61401 Search for other works by this author on: GSW Google Scholar John M. Armentrout John M. Armentrout 2Mobil Oil Corporation—Alaska Exploration Group, P.O. Box 900, Dallas, Texas 75221 Search for other works by this author on: GSW Google Scholar Author and Article Information Donald R. Prothero 1Department of Geology, Knox College, Galesburg, Illinois 61401 John M. Armentrout 2Mobil Oil Corporation—Alaska Exploration Group, P.O. Box 900, Dallas, Texas 75221 Publisher: Geological Society of America First Online: 01 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1985) 13 (3): 208–211. https://doi.org/10.1130/0091-7613(1985)13<208:MCOTLC>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 MailTo Tools Icon Tools Get Permissions Search Site Citation Donald R. Prothero, John M. Armentrout; Magnetostratigraphic correlation of the Lincoln Creek Formation, Washington: Implications for the age of the Eocene/Oligocene boundary. Geology 1985;; 13 (3): 208–211. doi: https://doi.org/10.1130/0091-7613(1985)13<208:MCOTLC>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 Paleomagnetic studies of the upper Eocene to Oligocene Lincoln Creek Formation, southern Olympic Peninsula, Washington, produce a polarity pattern spanning Chrons C15r to C6C. This allows direct correlation of the provincial foraminiferal and molluscan biostratigraphy with the global marine chronology. A high-temperature basalt date of 38.5 ± 1.6 Ma correlates with a position just below Chron C15, placing Chron C15r at about 38 Ma. This suggests that the age of the Eocene/Oligocene boundary within Chron C13r is younger than 38 Ma, probably about 37−36 Ma. This content is PDF only. Please click on the PDF icon to access. 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.