| 摘要: |
钦州湾为一葫芦形海湾,为广西海岸带发育较好的淤泥质海岸。其地形、地貌决定了海湾的发育。内湾发育占了其面积的80%以上的潮坪;外湾发育了潮流脊以及沙滩,其沉积物为细砂和中粗砂。潮坪的物质主要来源于钦江、茅岭江以及海岸和海湾内的侵蚀、削蚀物。其主要特点是沉积物分选差,原生沉积构造不发育,生物扰动作用强烈。
由于环境条件不同,南定坪、果子山两潮坪在沉积物粒度、重矿物、微体古生物、生物组合、沉积构造等方面有显著不同。 |
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| DOI： |
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| 基金项目: |
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| PRELIMINARY STUDY ON TIAT DEPOSIT OF QINZHOU BAY GUANGXI |
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Ye weiqiang
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| (Guangxi Institute of Oceanogrphy) |
| Abstract: |
Qiazhou bay is a calabash-shaped sea bay, being well-developed ooze coast in Guangxi.Its terrain, Topographic features decide developing of sea bay, Inside bay developing of tidal flat takes over 80% of amassment.Outer bay develops tidal-current ridge and sand bank It is fine sand and coarse-medium sand of sediment The tidal flat matter of sediment is mainly from erosion matter in Qinzhou river, Maoling river, coast and inside seabay.In the rgeion, It's characteristics are:separation of sediment is not well, primary sedimentary structur is not developed and organism trouble is strong.
Because of different environment conditions, in sediment grain sizes, mineral, micropaleontological organism, bio-component, sedimentary structure ect、tidal flat in Nanding ping is quite different from in Guozi shan. |
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