APPLICATION OF PALYNOFACIES TO THE STUDY OF THE PALEOZOIC SOURCE ROCKS IN LOWER YANGTZE REGION

ZHANG Miao; CHEN Qinghua; LIU Feng; CAI Jingong

doi:10.3724/SP.J.1140.2011.03087

2011 Vol. 31, No. 3

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Article navigation > Marine Geology & Quaternary Geology > 2011 > 31(3): 87-92

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ZHANG Miao, CHEN Qinghua, LIU Feng, CAI Jingong. APPLICATION OF PALYNOFACIES TO THE STUDY OF THE PALEOZOIC SOURCE ROCKS IN LOWER YANGTZE REGION[J]. Marine Geology & Quaternary Geology, 2011, 31(3): 87-92. doi: 10.3724/SP.J.1140.2011.03087

Citation:

ZHANG Miao, CHEN Qinghua, LIU Feng, CAI Jingong. APPLICATION OF PALYNOFACIES TO THE STUDY OF THE PALEOZOIC SOURCE ROCKS IN LOWER YANGTZE REGION[J]. Marine Geology & Quaternary Geology, 2011, 31(3): 87-92. doi: 10.3724/SP.J.1140.2011.03087

APPLICATION OF PALYNOFACIES TO THE STUDY OF THE PALEOZOIC SOURCE ROCKS IN LOWER YANGTZE REGION

1 College of Geo-Resources and Information, CUP, Qingdao 266555, China;
2 College of Ocean and Earth Sciences, Tongji University, Shanghai 200092

Received Date: 20 January 2011

Revised Date: 13 April 2011

Abstract

Abstract

We discussed the origin, organic-matter type and the formation environments of the source rocks occurred in the Lower Cambrian Mufushan Formation and the Lower Permian Chihsia Formation in the lower Yangtze region upon palynofacies. High quality source rocks with high TOC occur in the Mufushan Formation. They were dominated by over 90% of amorphous organic matter in most of the cases, and predominated by the type I of organic matter mainly from aquatic organisms formed in suboxic-anoxic lagoonal or estuarine environments. The organic matters in the Chihsia Formation are also dominated by amorphous organic matters, but with obvious variations in organic components, so it is of a mixed-type. The frequent change in sedimentary environments and oxygen-deficiency level made the source rocks distributed in a heterogeneous manner with lower TOC and lower quality.
- Mufushan Formation /
- Chihsia Formation /
- palynofacies /
- highly-mature source rock

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References

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