| 北部湾R1钻孔岩心上新世以来的沉积环境演变史研究 |
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| 引用本文： | 苍树溪,陈丽蓉.北部湾R1钻孔岩心上新世以来的沉积环境演变史研究[J].海洋地质与第四纪地质,1992,12(4):53-58. |
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| 作者姓名： | 苍树溪 陈丽蓉 |
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| 作者单位： | 中国科学院海洋研究所，中国科学院海洋研究所，中国科学院海洋研究所 青岛，266071，青岛，266071，青岛，266071 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 本文综述北部湾东北部R_1孔岩心记录。R_1孔岩心长度100m,水深42m。在粒度分析、矿物分析及微体古生物分析的基础上,认为该区在上新世时,为浅海相沉积,更新世则以陆相为主,仅在晚更新世时出现两个滨海相沉积层,全新世为浅海相沉积。
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| 关 键 词： | 上新世 沉积环境 钻孔岩心 |
EVOLUTION OF SEDIMENTARY ENVIRONMENTOF R_1 CORE FROM THE BEIBU GULFSINCE THE PLIOCENE |
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| Gang Shuxi,Chen Lirong,Dong Tailu.EVOLUTION OF SEDIMENTARY ENVIRONMENTOF R_1 CORE FROM THE BEIBU GULFSINCE THE PLIOCENE[J].Marine Geology & Quaternary Geology,1992,12(4):53-58. |
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| Authors: | Gang Shuxi Chen Lirong Dong Tailu |
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| Abstract: | R1 core is located in the northeastern part of the Beibu Gulf. It is 100m long and taken from 42-m water depth. The granulometric composition, min-eral assemblages and m-icrofossils were analyzed. The results of R1 core have indicated that distribution of shallow-marine sediments is widely spread in Pliocene in the study area, terrestrial facies is dominant in Pleistocene, two littoral layers have been found only in Upper Pleistocene, and shallow-marine facies is distributed again in Holocene. |
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| Keywords: | Pliocene Pleistocene Holocene sedimentary-environment |
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