EVALUATION OF TEXTURAL AND GEOCHEMICAL PROPERTIES OF FE-MN CRUSTS AS A TRACING TOOL OF PALEOLOCATION OF INTER-TROPICAL CONVERGENCE ZONE IN THE WESTERN PACIFIC
DC Field | Value | Language |
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dc.contributor.author | 김종욱 | - |
dc.contributor.author | 형기성 | - |
dc.contributor.author | 문재운 | - |
dc.date.accessioned | 2020-07-17T06:31:57Z | - |
dc.date.available | 2020-07-17T06:31:57Z | - |
dc.date.created | 2020-02-11 | - |
dc.date.issued | 2006-06-01 | - |
dc.identifier.uri | https://sciwatch.kiost.ac.kr/handle/2020.kiost/30990 | - |
dc.description.abstract | Textural and geochemical properties of ferromanganese crust (Fe-Mn crust) samples from four adjacent seamounts near the Marshall Islands were investigated to delineate the paleoceanographic condition on their growth history. The Fe-Mn crust samples of this study show four distinct layers (layers 1 to 4 from top to bottom). The uppermost layer 1 is massive and black, and is enriched in hydrogenetic elements such as Mn, Co, Ni, and Mo. The next layer 2 is porous and filled with sediment. Detrital (Al, Rb, and Ti) and biogenic (Cu, Zn, and Ba) elements are enriched in layer 2. The layers 3 and 4 are phosphatized layers which are impregnated with carbonate fluorapatite (CFA), and therefore their primary mineralogy and geochemistry were not preserved. The property of layer 2 suggested that this layer had grown under the condition of high biogenic and detrital flux. Such a condition may be met in the Inter-tropical Convergence Zone (ITCZ) where the northeast and southeast trade winds meet. Considering the present location and paleotracking of seamounts, layer 2 appears to have formed when these seamounts were beneath the ITCZ. On the other hand, layer 1 may have started to grow after the seamounts moved out of the ITCZ with the northwestward movement of the Pacific plate. Our study indicates that the Fe-Mn crusts can be used to trace the paleolocation of ITCZ when precise age determination and information on the plate movement are provided. | - |
dc.description.uri | 1 | - |
dc.language | English | - |
dc.publisher | VNIIOkeangeologia | - |
dc.relation.isPartOf | Minerals of the Ocean-3 | - |
dc.title | EVALUATION OF TEXTURAL AND GEOCHEMICAL PROPERTIES OF FE-MN CRUSTS AS A TRACING TOOL OF PALEOLOCATION OF INTER-TROPICAL CONVERGENCE ZONE IN THE WESTERN PACIFIC | - |
dc.type | Conference | - |
dc.citation.conferencePlace | RU | - |
dc.citation.endPage | 67 | - |
dc.citation.startPage | 66 | - |
dc.citation.title | Minerals of the Ocean-3 | - |
dc.contributor.alternativeName | 김종욱 | - |
dc.contributor.alternativeName | 형기성 | - |
dc.contributor.alternativeName | 문재운 | - |
dc.identifier.bibliographicCitation | Minerals of the Ocean-3, pp.66 - 67 | - |
dc.description.journalClass | 1 | - |