碩士 / 國立中山大學 / 海洋地質研究所 / 82 / Part1. This study analyzed isotopic compositions of carbon and
oxygen in carbonates as well as organic carbon in surface
sediments off eastern Taiwan . Results show that delta-13C of
organic carbon increases from typical terrestrial value of
approximately -26 o/oo to -20 o/oo of marine origins with
increasing distance from -3.5 o/oo 0.6 o/oo and -14.6 o/oo to
-1.1, respectively. The spatial variation in isotopic
compositions thus suggests that most carbonates and organic
matters in the sediments are a mixture of marine and terrestril
origins. Furthermore, this study demonstrates potential use of
delta-18O in carbonates as a natural tracer for investigating
the fate and pathway of sediment transport in sea margins off
eatern Taiwan. Part2. Delta-13C of organic carbon have been
determined in two sediment cores from the Japan Sea. Results
show that delta-13C of organic carbon increases with depth, and
may suggest thgat increasing amounts of the territrail organic
carbon had been transported into the Japan Sea during glacial
time. Consequently, study supports the general consensus that
the the variation in delta -13C of organic carbon may be
attributed to the changes in the organic carbon burial through
time.
| Identifer | oai:union.ndltd.org:TW/082NSYSU271003 |
| Date | January 1994 |
| Creators | Jou, Wen Chen, 周文臣 |
| Contributors | Sheu, David D., 許德惇 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 117 |
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