Cenozoic history of phosphogenesis recorded in the ferromanganese crusts of central and western Pacific seamounts: Implications for deepwater circulation and phosphorus budgets SCIE SCOPUS

DC Field Value Language
dc.contributor.author Hyeong, Kiseong -
dc.contributor.author Kim, Jonguk -
dc.contributor.author Yoo, Chan Min -
dc.contributor.author Moon, Jai-Woon -
dc.contributor.author Seo, Inah -
dc.date.accessioned 2020-04-20T05:34:13Z -
dc.date.available 2020-04-20T05:34:13Z -
dc.date.created 2020-01-28 -
dc.date.issued 2013-12-15 -
dc.identifier.issn 0031-0182 -
dc.identifier.uri https://sciwatch.kiost.ac.kr/handle/2020.kiost/3030 -
dc.description.abstract Ages of seamount phosphatization episodes have been revised for 14 mid-plate seamounts in the western and central Pacific using the most up-to-date marine Sr isotope curve and Sr-87/Sr-86 data from the literature. The new ages provide a composite geologic history of phosphatization consistent with Cenozoic climate history. Phosphatization on mid-Pacific seamounts took place only between 36 and 12 Ma, and it peaked at the Eocene/Oligocene (E/O) transition (similar to 34 Ma). The unprecedented appearance of prominent amounts of phosphorites at the E/O transition, and frequent recurrences of it afterwards, suggests that a new mechanism came into play at that time, namely the intensification of the advective flow of bottom water, which accelerated the phosphorus cycle. In contrast the absence of phosphorites younger than 12 Ma suggests another fundamental change in process, associated with the shift to a dry and cold climate that probably resulted in a decrease in the riverine input of labile phosphorus. The drastic decrease in the frequency of hiatuses in ocean-floor depositional records also indicates weakened bottom currents as a possible explanation for the absence of seamount phosphorite since 12 Ma. A phosphorus flux is a critical variable in modeling the response of the Earth system to climate forcing in the geologic past. Thus, the changes in phosphorus flux across the E/O boundary and around 12 Ma justify further study. (C) 2013 Elsevier B.V. All rights reserved. -
dc.description.uri 1 -
dc.language English -
dc.publisher ELSEVIER SCIENCE BV -
dc.subject STRONTIUM ISOTOPE STRATIGRAPHY -
dc.subject CENTRAL NORTH PACIFIC -
dc.subject ICE-SHEET DEVELOPMENT -
dc.subject DELTA-C-13 EXCURSIONS -
dc.subject CALCITE COMPENSATION -
dc.subject OCEAN CIRCULATION -
dc.subject MANGANESE CRUST -
dc.subject SOUTH-ATLANTIC -
dc.subject MIDDLE EOCENE -
dc.subject SEA-WATER -
dc.title Cenozoic history of phosphogenesis recorded in the ferromanganese crusts of central and western Pacific seamounts: Implications for deepwater circulation and phosphorus budgets -
dc.type Article -
dc.citation.endPage 301 -
dc.citation.startPage 293 -
dc.citation.title PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY -
dc.citation.volume 392 -
dc.identifier.bibliographicCitation PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY, v.392, pp.293 - 301 -
dc.identifier.doi 10.1016/j.palaeo.2013.09.012 -
dc.identifier.scopusid 2-s2.0-84886782154 -
dc.identifier.wosid 000330488400021 -
dc.type.docType Article -
dc.description.journalClass 1 -
dc.subject.keywordPlus STRONTIUM ISOTOPE STRATIGRAPHY -
dc.subject.keywordPlus CENTRAL NORTH PACIFIC -
dc.subject.keywordPlus ICE-SHEET DEVELOPMENT -
dc.subject.keywordPlus DELTA-C-13 EXCURSIONS -
dc.subject.keywordPlus CALCITE COMPENSATION -
dc.subject.keywordPlus OCEAN CIRCULATION -
dc.subject.keywordPlus MANGANESE CRUST -
dc.subject.keywordPlus SOUTH-ATLANTIC -
dc.subject.keywordPlus MIDDLE EOCENE -
dc.subject.keywordPlus SEA-WATER -
dc.subject.keywordAuthor Phosphorite -
dc.subject.keywordAuthor Seamount -
dc.subject.keywordAuthor Phosphogenetic episode -
dc.subject.keywordAuthor Pacific -
dc.subject.keywordAuthor Phosphorus cycle -
dc.subject.keywordAuthor Bottom current -
dc.relation.journalWebOfScienceCategory Geography, Physical -
dc.relation.journalWebOfScienceCategory Geosciences, Multidisciplinary -
dc.relation.journalWebOfScienceCategory Paleontology -
dc.description.journalRegisteredClass scie -
dc.description.journalRegisteredClass scopus -
dc.relation.journalResearchArea Physical Geography -
dc.relation.journalResearchArea Geology -
dc.relation.journalResearchArea Paleontology -
Appears in Collections:
Marine Resources Research Division > Global Ocean Research Center > 1. Journal Articles
Marine Resources Research Division > Deep-sea Mineral Resources Research Center > 1. Journal Articles
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