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New perspective on Aptian carbon isotope stratigraphy: Data from δ13C records of terrestrial organic matter

2002; Geological Society of America; Volume: 30; Issue: 3 Linguagem: Inglês

10.1130/0091-7613(2002)030 2.0.co;2

1943-2682

Atsushi Ando, Takeshi Kakegawa, Reishi Takashima, Tsunemasa Saito,

Methane Hydrates and Related Phenomena

Research Article| March 01, 2002 New perspective on Aptian carbon isotope stratigraphy: Data from δ13C records of terrestrial organic matter Atsushi Ando; Atsushi Ando 1Institute of Geology and Paleontology, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan Search for other works by this author on: GSW Google Scholar Takeshi Kakegawa; Takeshi Kakegawa 2Department of Mineralogy, Petrology and Economic Geology, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan Search for other works by this author on: GSW Google Scholar Reishi Takashima; Reishi Takashima 3Graduate School of Social and Cultural Studies, Kyushu University, Fukuoka 810-8560, Japan Search for other works by this author on: GSW Google Scholar Tsunemasa Saito Tsunemasa Saito 4National Science Museum, Shinjyuku-ku, Tokyo 169-0073, Japan Search for other works by this author on: GSW Google Scholar Author and Article Information Atsushi Ando 1Institute of Geology and Paleontology, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan Takeshi Kakegawa 2Department of Mineralogy, Petrology and Economic Geology, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan Reishi Takashima 3Graduate School of Social and Cultural Studies, Kyushu University, Fukuoka 810-8560, Japan Tsunemasa Saito 4National Science Museum, Shinjyuku-ku, Tokyo 169-0073, Japan Publisher: Geological Society of America Received: 06 Mar 2001 Revision Received: 08 Nov 2001 Accepted: 06 Dec 2001 First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (2002) 30 (3): 227–230. https://doi.org/10.1130/0091-7613(2002)030 2.0.CO;2 Article history Received: 06 Mar 2001 Revision Received: 08 Nov 2001 Accepted: 06 Dec 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 Atsushi Ando, Takeshi Kakegawa, Reishi Takashima, Tsunemasa Saito; New perspective on Aptian carbon isotope stratigraphy: Data from δ13C records of terrestrial organic matter. Geology 2002;; 30 (3): 227–230. doi: https://doi.org/10.1130/0091-7613(2002)030 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 Carbon isotope analyses were performed on detrital woody materials in Aptian (mid- Cretaceous) marine sediments of central Hokkaido, northern Japan. A positive δ13Cwood excursion (from −25.4‰ to −21.8‰) following a remarkable negative isotope shift is recognized in the early Aptian, and a small positive anomaly is also found in the latest Aptian. This δ13Cwood profile is exactly in phase with the δ13Ccarbonate curve from a Pacific guyot when the age of the guyot carbonates is revised using published Sr isotope stratigraphies. The highly conformable δ13C profiles of Pacific and Hokkaido sections suggest that δ13C compositions of Aptian marine and terrestrial carbon reservoirs changed simultaneously by the same amplitude within the ocean-atmosphere-biosphere system. Fluctuation patterns of Tethyan δ13Ccarbonate curves are slightly different from those of Pacific and Hokkaido sections. Such differences in δ13C profiles may be attributed to the local paleoceanographic setting of the Aptian Mediterranean Tethys. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.