| 珠江口盆地东部定量生物地层划分对比及沉降历史分析 |
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| 引用本文： | 周蒂,方青.珠江口盆地东部定量生物地层划分对比及沉降历史分析[J].地质科学,1993,28(3):211-220. |
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| 作者姓名： | 周蒂 方青 |
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| 作者单位： | 1. 中国科学院南海海洋研究所, 广州510301;2. 中国海洋石油总公司南海东部公司, 广州510240 |
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| 摘 要： | 用定量生物地层学的方法(RASC 和 CASC)对珠江口盆地东部34口井的古生物资料进行统计分析,建立了最佳生物地层序列。根据化石事件间的 RASC 距离,将这个最佳序列划出10个化石组合带,用 CASC 方法建立了区域地质年表,展示了地质年代、地层和RASC 分带之间的关系,并完成了井间对比。最后,根据 CASC 所提供的钻井时-深曲线,对10口井进行了沉降史分析,揭示了该区中新世以来构造沉降的时空特征。
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| 关 键 词： | 定量地层学 沉降史分析 珠江口盆地 |
| 收稿时间： | 1991-09-01 |
| 修稿时间： | 1991-09-01; |
A QUANTITATIVE BIOSTRATIGRAPHIC CORRELATION AND SUBSIDENCE ANALYSIS FOR EASTERN ZHUJIANG RIVER MOUTH BASIN |
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| Zhou Di Wang Ping.A QUANTITATIVE BIOSTRATIGRAPHIC CORRELATION AND SUBSIDENCE ANALYSIS FOR EASTERN ZHUJIANG RIVER MOUTH BASIN[J].Chinese Journal of Geology,1993,28(3):211-220. |
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| Authors: | Zhou Di Wang Ping |
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| Institution: | 1. Institute of Oceanology of South China Sea, Academia Sinica;2. Eastern Nanhai Oil Corporation, China National Qffshore Corporation |
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| Abstract: | Quantitative biostratigraphic analysis mehods (RASC and CASC) were used to study the paleontological data of 34 wells in Eastern ZhuJiang (Pearl) River Mouth Basin. The optimum biostratigraphic sequence was established. Ten fossil assemblage zones (RASC zones, in term of RASC distance) were identified, and regional geological time table was set up, which shows the relationship between age, strata, and RASC zones. Then selected wells were correlated. Finally, based on the time-depth curves for individual wells, the subsidence history was analyzed, and the spatcial and temporal variations of tectonic subsidence were revealed. |
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| Keywords: | Zhujiang River Mouth Basin Quantitative biostratigraphy RASC method(Ranking and Scaling) CASC method (Correlation and Scaling) Subsidence analysis |
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