Correlation of the Upper Devonian and Lower Carboniferous Depositional Sequences in the Different Facies Belts on the Southern Margin of the Upper Yangtze Platform

WANG Xun lian; LIN Shan yuan

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Article Navigation > Acta Sedimentologica Sinica > 1999 > 17(3): 331-338

WANG Xun lian, LIN Shan yuan. Correlation of the Upper Devonian and Lower Carboniferous Depositional Sequences in the Different Facies Belts on the Southern Margin of the Upper Yangtze Platform[J]. Acta Sedimentologica Sinica, 1999, 17(3): 331-338.

Citation:

Correlation of the Upper Devonian and Lower Carboniferous Depositional Sequences in the Different Facies Belts on the Southern Margin of the Upper Yangtze Platform

China University of Geoscience, Beijing, China, 100083

Received Date: 1998-07-13
Rev Recd Date: 1998-12-01
Publish Date: 1999-09-10

Abstract

A fundamental problem in sequence stratigraphy is whether the sequences are global in extent and whether the sea level changes are eustatic in nature. Study on the Upper Devonian and Lower Carboniferous depositional sequences in the different facies belts on the southern margin of the Upper Yangtze Platform shows that different orders of sequences possess of distinctive distribution and correlation in space, although the sea level changes in the various orders of sequences may be primarily global in nature. The present paper regards the distribution in space, especially in different facies belts, as a criterion for defining and recognizing the various orders of sequences. The orthosequence (third-order sequence) is probably global in nature, which may be discerned in various depositional facies belts on the continental margin and can be correlated over long distances, sometimes may be worldwide. Commonly, correlation of the subsequences (fourth-order sequences with time interval of 0.5 to 1.5 Ma) is difficult in different facies belts, although some of them are probably also worldwide in distribution. A subsequence should be distinguishable and correlatable within at least one facies belt. The number of subsequences in one orthosequence varies in different facies belts.Only the number of subsequences recognized in shallow marine facies represents the correct subdivision of subsequences within one orthosequence.The higher-order sequences.including parasequences (fifth-order sequences, i. e. subsequence of Wang and Shi) and microsequences (sixth-order sequences), are regional or local in distribution. Generally their correlation are difficult even within a single facies belt.Parasepuences and microseunces may have reflected the longer and shorter Milankovitch cycles,respectively. Orthosequences and subsequences are usually recognizable in different facies belts, while parasequences and microsequences may be distinguished only in shallow marine deposits,but not in slope and basin facies deposits.The widely used meter-scale cyclothems probably include various orders of sequences and may represent parasequences (fifth-order sequences)and microsequences (sixth-sequences),even orthosequences,in different depositional facies belts.
- facies belt,
- orthosequence,
- subsequence,
- parasequence,
- microsequence,
- meter-scale cyclothem,
- Milankovitch cycle

References

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1 Wang Hongzhen，Shi Xiaoying. A Scheme of the Hierarchy for Sequence Stratigraphy[J]. Journal of China University of Geosciences. 1996,7(1)：1

2 Vail P R， Audemard F， Bowman S A, Eisner P N, C Perez-Cruz.The Stratigraphic Signatures of Tectonics, Eustasy and Sedimentology — an Overview[A]. In: Einsele G,Ricken W, Seilacher A. eds.Cycles and Event in Stratigraphy[C]. Berlin, Heidelberg: Springer-Verlag，1991.617～659.

3 Mitchum R， Jr M, Van Wagoner J C. High-frequency sequence and their stacking pattern: sequence-stratigraphic evidence of high-frequency eustatic cycles[J]. Sedimentary Geology .1991, 70：131～160.

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5 Vail P R, Mitchum R M,Thompson S.III, Seismic stratigraphy and global changes of sea level, part 3, relative changes of sea level from coastal onlap. In: C. E. Payton, ed., Seismic stratigraphy application to hydrocarbon exploration[C]: AAPG Memoir ，1977,26： 63～82

6 Baum G R, Vail P R. Sequence Stratigraphic Concepts applied to Paleogene Outcrops, Gulf and Atlantic Basin. In: C. W. Wilgus, et al., eds., Sea level changes: an integrated approach[C]. SEPM Special Publication ，1988,42：309～328

7 Wang Xunlian, Li Shilong，Wang Yue. Upper Devonian and Lower Carboniferous sequence stratigraphy of South China[J]. Journal of China University of Geosciences, 1996, 7(1)：87～94

8 Johnson J H, Klapper G, Sandberg C A. Devonian Eustatic Fluctuations in Euramerica[J]. Geological Society of America Bulletin, 1985, 96(5)：567～587

9 Johnson J H, Klapper G. North American Midcontinent Devonian T-R cycles[J]. Oklahoma Geological Survey Bulletin, 1992, 145：127～135

10 Young G C. Devonian timescales calibration and development (A)[J]. Australian Geological Survey Organization，1995.1～47

11 Ross C A, Ross J R P. Late Paleozoic Transgressive-Regressive Deposition. In: Wilgus C W, et al, eds. Sea level changes: an integrated approach[C]. SEPM Special Publication 1988,42： 227～247

12 Veevers J J, McA C. Powell, Late Paleozoic Glacial Episodes in Gondwanaland Reflected in Transgressive-Regressive Depositional Sequences in Euramerica[J]. Geological Society of America Bulletin, 1987, 98(4)： 475～487

13 Van Wagoner J C, Posamentier H W, Mitchum R M，et al.An Overview of the Fundamentals of Sequence Stratigraphy and Key Definition. In: Wilgus C W， et al, eds. Sea level changes: an integrated approach[C]. SEPM Special Publication 1988,42：39～45

14 Van Wagoner J C, Mitchum R M， Campion K M，et al. Siliclastic sequence stratigraphy in well logs, cores, and outcrops: concepts for high-resolution correlation of time and facies[C]. AAPG Methods in Exploration Series 1990,7：55

15 Van Wagoner J C. Overview of sequence stratigraphy of foreland basin deposits: terminology, summary of paper, and Glossary of sequence stratigraphy. In: Van Wagoner, J C, Bertram G T, eds. Sequence Stratigraphy of Foreland Basin Deposits, Outcrop and Subsurface Examples from the Cretaceous of North America[C]. AAPG Memoir 1995，64： ix～xxi

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Correlation of the Upper Devonian and Lower Carboniferous Depositional Sequences in the Different Facies Belts on the Southern Margin of the Upper Yangtze Platform

China University of Geoscience, Beijing, China, 100083

Received Date: 1998-07-13

Rev Recd Date: 1998-12-01

Publish Date: 1999-09-10

Key words:

Abstract: A fundamental problem in sequence stratigraphy is whether the sequences are global in extent and whether the sea level changes are eustatic in nature. Study on the Upper Devonian and Lower Carboniferous depositional sequences in the different facies belts on the southern margin of the Upper Yangtze Platform shows that different orders of sequences possess of distinctive distribution and correlation in space, although the sea level changes in the various orders of sequences may be primarily global in nature. The present paper regards the distribution in space, especially in different facies belts, as a criterion for defining and recognizing the various orders of sequences. The orthosequence (third-order sequence) is probably global in nature, which may be discerned in various depositional facies belts on the continental margin and can be correlated over long distances, sometimes may be worldwide. Commonly, correlation of the subsequences (fourth-order sequences with time interval of 0.5 to 1.5 Ma) is difficult in different facies belts, although some of them are probably also worldwide in distribution. A subsequence should be distinguishable and correlatable within at least one facies belt. The number of subsequences in one orthosequence varies in different facies belts.Only the number of subsequences recognized in shallow marine facies represents the correct subdivision of subsequences within one orthosequence.The higher-order sequences.including parasequences (fifth-order sequences, i. e. subsequence of Wang and Shi) and microsequences (sixth-order sequences), are regional or local in distribution. Generally their correlation are difficult even within a single facies belt.Parasepuences and microseunces may have reflected the longer and shorter Milankovitch cycles,respectively. Orthosequences and subsequences are usually recognizable in different facies belts, while parasequences and microsequences may be distinguished only in shallow marine deposits,but not in slope and basin facies deposits.The widely used meter-scale cyclothems probably include various orders of sequences and may represent parasequences (fifth-order sequences)and microsequences (sixth-sequences),even orthosequences,in different depositional facies belts.

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Correlation of the Upper Devonian and Lower Carboniferous Depositional Sequences in the Different Facies Belts on the Southern Margin of the Upper Yangtze Platform

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