Discovery of Active Hydrothermal Vent Fields Along the Central Indian Ridge, 8-12 degrees S SCIE SCOPUS

DC Field Value Language Kim, J. - Son, S.-K. - Kim, D. - Pak, S.-J. - Yu, O.H. - Walker, S.L. - Oh, J. - Choi, S.K. - Ra, K. - Ko, Y. - Kim, K.-H. - Lee, J.-H. - Son, J. - 2020-12-10T07:46:25Z - 2020-12-10T07:46:25Z - 2020-09-07 - 2020-08 -
dc.identifier.issn 1525-2027 -
dc.identifier.uri -
dc.description.abstract Four new hydrothermal vent fields were discovered on the slow spreading Central Indian Ridge (8-12 degrees S; Segments 1-3), all located off-axis on abyssal hill structures or Ocean Core Complexes (OCCs). Each site was characterized using seafloor observation (towed camera system), plume chemistry (Fe, Mn, and CH4; Conductivity, Temperature, and Depth sensor [CTD]/Miniature Autonomous Plume Recorder [MAPR]), and rock sampling (TVgrab/dredges). Different styles of venting on each segment reflect different geological settings, rock types, likely heat sources, and fluid pathways. The segment 1 field was located on the western flank of the axial valley at the base of OCC-1-1. High-temperature venting was inferred from plume characteristics and extensive seafloor sulfide mineralization, but only diffuse venting was observed. This site appears to be a magmatic-influenced basaltic-hosted system despite its off-axis location. Two low-temperature diffusely venting sites were located on abyssal hills 6 and 9 km off-axis on Segment 2. Plume particle, metal, and CH4 concentrations were all very low, suggesting dilution of hydrothermal fluids by intrusion of seawater into the highly permeable flank area fault zone. The "Onnuri Vent Field" (OVF), located at the summit of OCC-3-2, vented clear, low-temperature fluids supporting abundant vent organisms (21 macrofaunal taxa). The plume particle signal was low to absent, but strong ORP anomalies correlated with high CH4 and low metal concentrations. Sulfide mineralization was present, which suggests both serpentinization and magmatic/lithospheric influence on fluid composition. The detachment fault is the likely pathway for hydrothermal fluid circulation at this off-axis location. These new vent field discoveries, especially the OVF, contribute valuable information toward understanding Indian Ocean hydrothermal systems and their ecology/biogeography. -
dc.description.uri 1 -
dc.language English -
dc.subject FLUIDS -
dc.subject GEOCHEMISTRY -
dc.subject BIOGEOGRAPHY -
dc.subject OCEAN -
dc.subject COMMUNITIES -
dc.subject CHEMISTRY -
dc.subject NEMATODES -
dc.title Discovery of Active Hydrothermal Vent Fields Along the Central Indian Ridge, 8-12 degrees S -
dc.type Article -
dc.citation.volume 21 -
dc.citation.number 8 -
dc.contributor.alternativeName 김종욱 -
dc.contributor.alternativeName 손승규 -
dc.contributor.alternativeName 김동성 -
dc.contributor.alternativeName 박상준 -
dc.contributor.alternativeName 유옥환 -
dc.contributor.alternativeName 오지혜 -
dc.contributor.alternativeName 최선기 -
dc.contributor.alternativeName 나공태 -
dc.contributor.alternativeName 고영탁 -
dc.contributor.alternativeName 김경홍 -
dc.contributor.alternativeName 이준호 -
dc.identifier.bibliographicCitation GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS, v.21, no.8 -
dc.identifier.doi 10.1029/2020GC009058 -
dc.identifier.scopusid 2-s2.0-85089847099 -
dc.identifier.wosid 000577130200029 -
dc.type.docType Article -
dc.description.journalClass 1 -
dc.description.isOpenAccess N -
dc.subject.keywordPlus MID-ATLANTIC RIDGE -
dc.subject.keywordPlus ULTRAMAFIC ROCKS -
dc.subject.keywordPlus SPREADING CENTER -
dc.subject.keywordPlus FLUIDS -
dc.subject.keywordPlus GEOCHEMISTRY -
dc.subject.keywordPlus BIOGEOGRAPHY -
dc.subject.keywordPlus OCEAN -
dc.subject.keywordPlus COMMUNITIES -
dc.subject.keywordPlus CHEMISTRY -
dc.subject.keywordPlus NEMATODES -
dc.subject.keywordAuthor hydrothermal vent -
dc.subject.keywordAuthor Central Indian Ridge -
dc.subject.keywordAuthor slow spreading -
dc.subject.keywordAuthor mid-ocean ridge -
dc.subject.keywordAuthor massive sulfides -
dc.subject.keywordAuthor vent fauna -
dc.relation.journalWebOfScienceCategory Geochemistry & Geophysics -
dc.description.journalRegisteredClass scie -
dc.description.journalRegisteredClass scopus -
dc.relation.journalResearchArea Geochemistry & Geophysics -
Appears in Collections:
Marine Environmental & Climate Research Division > Marine Ecosystem Research Center > 1. Journal Articles
Marine Environmental & Climate Research Division > Marine Environmental Research Center > 1. Journal Articles
Marine Resources Research Division > Global Ocean Research Center > 1. Journal Articles
Marine Resources Research Division > Deep-sea Mineral Resources Research Center > 1. Journal Articles
Marine Domain Management Research Division > Korean Seas Geosystem Research Unit > 1. Journal Articles
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