Refine your search
Collections
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z All
Yang, Qing
- Research on Lowstand System Tract from its Characteristics, the Environment of Coal Formation and the Model of Coal Accumulation
Abstract Views :494 |
PDF Views:215
Authors
Affiliations
1 College of Earth Science and Engineering, Shandong University of Science and Technology, Qingdao-266590, CN
1 College of Earth Science and Engineering, Shandong University of Science and Technology, Qingdao-266590, CN
Source
International Journal of Earth Sciences and Engineering, Vol 10, No 4 (2017), Pagination: 873-877Abstract
The coal bed in the lowstand system tract plays a increasingly significant role in the study of sequence division and the model of coal formation has become key issues. In this study, the theory that coal formation environment, whether it is a littoral environment or terrestrial environment, is generally the area of shoaly depression of the corrading stream or stream terrace has been proposed through analysis of coal formation sedimentary environment of marine lowstand system tract and nonmarine faulted basin lowstand system tract coalseam, space characteristics of lithology. Coal formation of marine lowstand system tract in coastal area mainly occurred in Neopaleozoic, its coal bed lesser and its progradation is marine deposit (limestone or claystone). While, in the nonmarine low stand system, coal formation are mainly found in Meso-cenozoic and the sedimentary particles of coal roof is coarser, this pattern is common in braided river, alluvial fan or fan delta. The coal seam in the lowstand system tract with complex structure, great difference in thickness and the quality of coal seam is poor. Based on the swing of Lake Basin water and the change of structural, there are high sulphur and ash in coastal area, high ash and more branch in the continental rift basin.Keywords
Lowstand System Tract, Coal Formation Environment, Coal-Accumulation Model.Full Text
References
- Li Z. X., Wei J. C., Wei Z. D., Han M. L., Li X. W., “sequence stratigraphy of coal-bearing basin [M]”. Beijing: Geology Publishing House, 2000
- Diessel C. F. K., “Coal-bearing depositional systems-coal facies and depositional environrmentals”. Springer-Verlag, PP. 461-514, 1992
- Shao L. Y., Zhang P. F., Liu Q. F., Zheng M. J., “The lower Carboniferous Ceshui Formation in central Hunan, South China: Depositional Sequences and Episodic coal accumulation”, Geological Review, 38 (1), PP. 52-59, 1992
- Hu S. R., Zhang X. C., Wu Y. V., Yang F. Z., Luo P., “Oilfield forming law with coal of Jurassic systerm”. Northwest China, Xinjiang Petroleum Geology, 21 (5), PP. 361-364, 2000
- Jiang Y., Li B. F., Wang S. C., “Lowstand system tract sandstone in the sequence of epicontinental sea in Ordos: a case of Qiaotou Sandstone of Upper Taiyuan Formation”, Geoscience, 15 (4), PP. 425-430, 2001
- Li J. P., “Coal Measure Strata Research in the Sequence Stratigraphy”, Inner Mongolian Petrochemical Industry, (4), PP. 8-10, 2008
- Wu Y. Y., “A study on depostional sequence feature of Jurassic coal formation in Tuha Basin”, Petroleum exploration and development, 22 (5), PP. 35-29, 1995
- Yuan B., Chen S. Y., Xia Y., “An Example of Coal Bed as the Stratigraphic Sequence Border in Continental Basin of China: Taking the Middle Jurassic of Hongtai Area, Tuha Basin for Example”, Natural gas geoscience, 19 (6), PP. 810-815, 2008
- Yang R. F., Zhang P. F., Liu Q. F., “Study on seam strata and coal features of Jurassic system coal field in Beijing area”, Mine science and technology, 29 (6), PP. 41-44, 2001
- Ma S., Tian J. J., Wu T. W., Liu L., Fu Q. B., Chen B.,” Sedimentary characteristics and coal-accumulation patterns of Xishanyao Formation in Yili basin”, COAL GEOLOGY & EXPLORATION, 40 (2), PP. 9-14, 2012
- Liu H., Wang Y. M., Wang Y., “Analyses of the significance of Jurassic Coal Layers in sequence stratigraphy of Junggar Basin”, Acta sedimentology Sinica, 20 (2), PP. 197-202, 2002
- Lv D. W., Wu X. Y., Li Z. X., Feng T. T., Liu H. Y., Wang D. D., Zhao L. Y., “Sedimentary Mechanism in the Coal and Oil Shale Bearing Succession Graben Basins: The Comparision between Fushun and Huangxian Basins, Eastern China”, The Open Petroleum Engineering Journal, (8), PP. 385-391, 2015
- Lu J., Shao L. Y., Ran L. M., Su S. C., Wei K. M., Sun Y. Z., Chen J. F., Yu X. H., “A sequence stratigraphic analysis and coal accumulation of Late Triassic coal measures in the Baoding Basin”, Coal geology & exploration, 36 (6), PP. 1-6, 2008
- Gao C. X., Shao L. Y., Li C. L., Xu H. T., “Sequence stratigraphy and coal accumulation of the Upper Triassic Xujiahe Formation in eastern Sichuan Basin”, Journal of Palaeogeography, 11 (6), PP. 689-695, 2009
- Zhai A. J., Deng H. W., Wang H. L., “Sequence stratigraphy and correlation of Upper Paleozoic coal-bearing formations in Ordos Basin”, China offshore oil and gas(geology), 14 (3), PP. 179-181, 2000
- Ramp Delta Deposit and Palaeogeography Evolution of Permian Paralic Basin in Southwest Shandong Province, North China
Abstract Views :122 |
PDF Views:124
Authors
Affiliations
1 Shandong Provincial Key Laboratory of Depositional Mineralization and Sedimentary Minerals, College of Geological Science and Engineering, Shandong University of Science and Technology, Qingdao-266590, CN
1 Shandong Provincial Key Laboratory of Depositional Mineralization and Sedimentary Minerals, College of Geological Science and Engineering, Shandong University of Science and Technology, Qingdao-266590, CN
Source
International Journal of Earth Sciences and Engineering, Vol 9, No 3 (2016), Pagination: 1033-1037Abstract
The paper focuses on the deltaic deposition of Southwest Shandong and studies its sedimentary characteristics and evolution of paleogeography. It can be identified six kinds of lithofacies including drab yellow coarse-sand facies (CS), grayish medium-sand facies (MS), grayish fine-sand facies (FS), dark grey mudstone and siltstone interbedding (MFS), coal (CB), dark mudstone (DM). Eight kinds of sedimentary microfacies are identified which are: distributary channel facies (MS and CS association), mouth bar facies (MS and FS association), natural levee facies (FS and MFS association), crevasse splay facies (MS, FS and MFS association), peat swamp facies (DM and CB association), distal bar facies (MFS), bay or littoral-neritic facies (DM). Isochronous sedimentary contrast is carried out in the delta sedimentary of Southwest Shandong and divided into five cycles. C1 mainly forms bay facies of prodelta in early stage, delta plain and delta front deposition in later stage. C2 develops delta front and prodelta deposition in the southwest and delta plain in the northern of the study area in early stage, delta plain in later stage. C3 develops delta front deposition in early stage, delta plain in later stage, C4 and C5 are mainly formed in delta plain, and Zibo area has evolved into continental fluvial sedimentary.Keywords
Southwest Shandong, Permian, Delta, Paleogeography.Full Text