| 有孔虫及共生生物组合与碳酸盐微相探讨 |
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| 引用本文： | 李兴奎.有孔虫及共生生物组合与碳酸盐微相探讨[J].沉积学报,1988,6(3):96-103. |
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| 作者姓名： | 李兴奎 |
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| 作者单位： | 石油工业部石油勘探开发科学研究院 |
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| 摘 要： | 有孔虫属微小原生动物,不同的属种对其生态环境的选择不同。浙江鸡笼山C3-P1剖面有孔虫分布于盆地相、开阔海-局限海台地相灰岩中,并与相应环境的底栖生物共生。盆地相有孔虫还与放射虫共存。根据有孔虫的特征、伴生生物反映的生态环境和周岩的岩石结构、沉积构造所反映的沉积环境,将该剖面有孔虫划分为三个组合、七个亚组合。它们分别反映了盆地、广海陆棚及陆棚边缘、开阔海台地和局限海台地五个相带、七个亚相和十六个微相。盆地、广海陆棚、开阔海台地有孔虫组合所赋存的微相具有良好的油气生成能力。经搬运后堆积的有孔虫组合所在微相储集油气的性能较好。
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| 关 键 词： | 有孔虫组合 共生生物 碳酸盐微相和油气关系 浙江 |
| 收稿时间： | 1986-07-14 |
PROBE INTO THE RELATION WHICH FORAMINIFERA AND ASSOCIATED BIONOMY WERE TO MICROGACIES OF CARBONATE DEPOSITS AND GENERATION OF OIL-GAS |
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| Institution: | Reseach Institute of Petroleum exploration And Development, Beijing |
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| Abstract: | Through studying foraminifera and associated bionomics in the upper Carboniferous-Lower Permian sedimentary section of YaoLin, ZheJiang province, China, the paper divided the benthonic foraminiferas from carbonate platform into three types of assemblages. Type 1 ( R ) is the assemblages of the foraminifera from the restricted sea platform, which are characteristic of minor bodies and walls with fibrous and micritzed texture, such as Nodosaria, Glomospira, Geinitzina, Ammodiscus, and Eolasiodiscus. Type 2 ( O ) is the assemblage of the foraminifera from the open sea platform, which are characteristic of large bodies and shells with two-layer texture, Such as Cribrogenerina, Climacammina, Pachyphloin, Padangin, and Endothyra. TypeS ( B ) is the assemblage of the foraminifera from the basin, which are characteristic of minor bodies and shells with the fine sparry texture, associated with minor and thin-shell Ostrcada, and mixed with a lot of afloat Rodiolarians. The genus and species of the foraminiferas are similar to the type 1. According to the differences of rock textures, mineral compositions, foram-iniferal features and sedimentary strcutures, these have been divided into R1 R2 Ra O1O2 O3 and B, existing in sixteen carbonate microfacies respectively. The sedimentary emvironments which are represented by the foraminifera assemblages corresponding to the first, second, third seventh and eighth face belts of the ideal model of stardard face belts which was established by J. L. wilson, 1975. The microfacies represented by type B and subassemblages O1 and O2 have best potentials of oil-gas generation. The microfacies represented by subassem-blage O3 and R3 have good reseryoir space of oil-gas. |
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