碩士 / 國立臺灣海洋大學 / 應用地球物理研究所 / 92 / Abstract
High resolution records of oxygen isotope and biogenic sediment from an IMAGES core MD972146 (20°07.019'N； 117°23.08'E, water depth 1720m) provide information of centennial to millennial time scale paleoceanographic variation in the Northern South China Sea (SCS). We have analyzed the proxies of oxygen isotopes, carbonate, organic carbon, biogenic opal, detrital-inorganic phosphorous contents and the ration of organic carbon and nitrogen, organic phosphorous from this core. We use Principle Component Analysis for carbonate, organic carbon, biogenic opal, detrital-inorganic phosphorous contents and the ration of organic carbon and nitrogen, organic phosphorous to obtain the Composite Detrital Index (CDI) and Composite Productivity Index (CPI). The centennial to millennial time-scale climate record of oxygen isotope, CDI and CPI from the MD972146 can be correlated to that of the Greenland ice core GISP2, stalagmites of Hulu cave and deep-sea core ODP1002C of Cariaco Basin. This indicates the correlation and connection of high latitude and low latitude climate. Before the Heinrich event occurred, the CDI and CPI become high. This may be related to high precipitation of the Northern South China Sea. The centennial to millennial climate records of oxygen isotopes, CDI and CPI from MD972146 also present the south hemisphere climate signal. This indicates the influence of the south hemisphere climate on the northern South China Sea. During the Holocene thermal maximum, the climate of the northern South China Sea shows warm and wet condition.
| Identifer | oai:union.ndltd.org:TW/092NTOU5502002 |
| Date | January 2004 |
| Creators | Ta-Cheng Lin, 林大成 |
| Contributors | Min-Te Chen, 陳明德 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 120 |
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