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Millennial-scale ocean dynamics controlled export productivity in the subtropical North Pacific

2017; Geological Society of America; Volume: 45; Issue: 7 Linguagem: Inglês

10.1130/g38981.1

1943-2682

Dawei Li, Li‐Wei Zheng, Samuel L. Jaccard, Tien-Hsi Fang, Adina Paytan, Xufeng Zheng, Yuan‐Pin Chang, Shuh‐Ji Kao,

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Research Article| July 01, 2017 Millennial-scale ocean dynamics controlled export productivity in the subtropical North Pacific Dawei Li; Dawei Li 1State Key Laboratory of Marine Environmental Science, Xiamen University, No. 422, Siming South Road, Xiamen 361102, China Search for other works by this author on: GSW Google Scholar Li-Wei Zheng; Li-Wei Zheng 1State Key Laboratory of Marine Environmental Science, Xiamen University, No. 422, Siming South Road, Xiamen 361102, China Search for other works by this author on: GSW Google Scholar Samuel L. Jaccard; Samuel L. Jaccard 2Institute of Geological Sciences and Oeschger Center for Climate Change Research, University of Bern, Baltzerstrasse 3, Bern 3012, Switzerland Search for other works by this author on: GSW Google Scholar Tien-Hsi Fang; Tien-Hsi Fang 3Department of Marine Environmental Informatics, National Taiwan Ocean University, No.2, Beining Road, Jhongjheng District, Keelung 202, Taiwan Search for other works by this author on: GSW Google Scholar Adina Paytan; Adina Paytan 4Earth and Planetary Science, University of California, Santa Cruz, 1156 High Street, Santa Cruz, California 95064, USA Search for other works by this author on: GSW Google Scholar Xufeng Zheng; Xufeng Zheng 5Key Laboratory of Marginal Sea Geology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou 510301, China Search for other works by this author on: GSW Google Scholar Yuan-Pin Chang; Yuan-Pin Chang 6Department of Oceanography, National Sun Yat-sen University, 70 Lien-hai Road, Kaohsiung 806, Taiwan Search for other works by this author on: GSW Google Scholar Shuh-Ji Kao Shuh-Ji Kao * 1State Key Laboratory of Marine Environmental Science, Xiamen University, No. 422, Siming South Road, Xiamen 361102, China *E-mail: sjkao@xmu.edu.cn Search for other works by this author on: GSW Google Scholar Author and Article Information Dawei Li 1State Key Laboratory of Marine Environmental Science, Xiamen University, No. 422, Siming South Road, Xiamen 361102, China Li-Wei Zheng 1State Key Laboratory of Marine Environmental Science, Xiamen University, No. 422, Siming South Road, Xiamen 361102, China Samuel L. Jaccard 2Institute of Geological Sciences and Oeschger Center for Climate Change Research, University of Bern, Baltzerstrasse 3, Bern 3012, Switzerland Tien-Hsi Fang 3Department of Marine Environmental Informatics, National Taiwan Ocean University, No.2, Beining Road, Jhongjheng District, Keelung 202, Taiwan Adina Paytan 4Earth and Planetary Science, University of California, Santa Cruz, 1156 High Street, Santa Cruz, California 95064, USA Xufeng Zheng 5Key Laboratory of Marginal Sea Geology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou 510301, China Yuan-Pin Chang 6Department of Oceanography, National Sun Yat-sen University, 70 Lien-hai Road, Kaohsiung 806, Taiwan Shuh-Ji Kao * 1State Key Laboratory of Marine Environmental Science, Xiamen University, No. 422, Siming South Road, Xiamen 361102, China *E-mail: sjkao@xmu.edu.cn Publisher: Geological Society of America Received: 20 Jan 2017 Revision Received: 16 Mar 2017 Accepted: 17 Mar 2017 First Online: 28 Jun 2017 Online Issn: 1943-2682 Print Issn: 0091-7613 © 2017 Geological Society of America Geology (2017) 45 (7): 651–654. https://doi.org/10.1130/G38981.1 Article history Received: 20 Jan 2017 Revision Received: 16 Mar 2017 Accepted: 17 Mar 2017 First Online: 28 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 Dawei Li, Li-Wei Zheng, Samuel L. Jaccard, Tien-Hsi Fang, Adina Paytan, Xufeng Zheng, Yuan-Pin Chang, Shuh-Ji Kao; Millennial-scale ocean dynamics controlled export productivity in the subtropical North Pacific. Geology 2017;; 45 (7): 651–654. doi: https://doi.org/10.1130/G38981.1 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 integrated effects of ocean-climate dynamics on export production in the North Pacific have remained elusive. We present a 91 k.y. export productivity (EP) record based on sedimentary reactive phosphorus from the western subtropical North Pacific. On a millennial time scale, EP decreased during Northern Hemisphere cold events when atmospheric dust loading was high, and increased during warm episodes. The inferred antiphase relation between dust and EP suggests that the supply of macronutrients to the sunlit surface ocean, modulated by the penetration depth of North Pacific Intermediate Water and not eolian Fe, exerted a major control on EP in the subtropical North Pacific. A compilation of global EP records suggests that eolian Fe most likely played a role in stimulating EP regionally only in the Subantarctic zone of the Southern Ocean. Over the past 91 k.y., during the cold-south–warm-north phase of the bipolar seesaw, the biological pump in both hemispheres was enhanced synchronously, yet by different drivers; atmospheric Fe input for the Subantarctic and subsurface macronutrient supply for the North Pacific, including the tropical and/or subtropical Pacific, and the Antarctic zone of the Southern Ocean. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.