Onset, evolution and effects of the Mediterranean Outflow: An overview of IODP Expedition 339 in the Gulf of Cadiz
DC Field | Value | Language |
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dc.contributor.author | F. Javier Hernandez-Molina | - |
dc.contributor.author | Dorrik Stow | - |
dc.contributor.author | Carlos Alvarez-Zarikian | - |
dc.contributor.author | 김진경 | - |
dc.contributor.author | IODP Exp. 339 scientists | - |
dc.date.accessioned | 2020-07-16T13:31:09Z | - |
dc.date.available | 2020-07-16T13:31:09Z | - |
dc.date.created | 2020-02-11 | - |
dc.date.issued | 2012-04-19 | - |
dc.identifier.uri | https://sciwatch.kiost.ac.kr/handle/2020.kiost/27872 | - |
dc.description.abstract | IODP Expedition 339 drilled 5 sites in the Gulf of Cadiz and 2 off the west Iberian margin (November 2011 to January 2012) (Fig. 1), and recovered 5.5 km of core with an average recovery of 86.4%. The Gulf of Cadiz was targeted for drilling as a key location for the investigation of Mediterranean Outflow Water (MOW) through the Gibraltar Gateway and its influence on global circulation and climate. It is also a prime area for understanding the effects of tectonic activity on evolution of the Gibraltar Gateway and on margin sedimentation. We penetrated into the Miocene at two different sites and established a strong signal of MOW in the sedimentary record of the Gulf of Cadiz following opening of the Gibraltar Gateway. Preliminary results show contourite deposition from 4.2-4.5 Ma, although subsequent research will establish whether this dates from the first onset of MOW. The Pliocene succession, penetrated at four sites, shows low bottom current activity linked with a weak MOW. Significant widespread unconformities, present in all sites but with hiatuses of variable duration, are interpreted as a signal of intensified MOW, coupled with flow confinement. The Quaternary succession shows a much more pronounced phase of contourite drift development, with two periods of MOW intensification separated by a widespread unconformity. Following this, the final phase of drift evolution established thling as a key location for the investigation of Mediterranean Outflow Water (MOW) through the Gibraltar Gateway and its influence on global circulation and climate. It is also a prime area for understanding the effects of tectonic activity on evolution of the Gibraltar Gateway and on margin sedimentation. We penetrated into the Miocene at two different sites and established a strong signal of MOW in the sedimentary record of the Gulf of Cadiz following opening of the Gibraltar Gateway. Preliminary results show contourite deposition from 4.2-4.5 Ma, although subsequent research will e | - |
dc.description.uri | 2 | - |
dc.language | English | - |
dc.publisher | 대한자원환경지질학회, | - |
dc.relation.isPartOf | 2012년 춘계 지질과학기술 공동학술대회 | - |
dc.title | Onset, evolution and effects of the Mediterranean Outflow: An overview of IODP Expedition 339 in the Gulf of Cadiz | - |
dc.type | Conference | - |
dc.citation.conferencePlace | KO | - |
dc.citation.endPage | 145 | - |
dc.citation.startPage | 144 | - |
dc.citation.title | 2012년 춘계 지질과학기술 공동학술대회 | - |
dc.contributor.alternativeName | 김진경 | - |
dc.identifier.bibliographicCitation | 2012년 춘계 지질과학기술 공동학술대회, pp.144 - 145 | - |
dc.description.journalClass | 2 | - |