奥陶纪末期层序地层学研究

王传尚; 汪啸风; 陈孝红; 李志宏

Volume 28 Issue 1

Jan. 2003

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WANG Chuan-shang, WANG Xiao-feng, CHEN Xiao-hong, LI Zhi-hong, 2003. Study of Sequence Stratigraphy at Terminal of Ordovician. Earth Science, 28(1): 6-10.

Citation:

WANG Chuan-shang, WANG Xiao-feng, CHEN Xiao-hong, LI Zhi-hong, 2003. Study of Sequence Stratigraphy at Terminal of Ordovician. Earth Science, 28(1): 6-10.

WANG Chuan-shang, WANG Xiao-feng, CHEN Xiao-hong, LI Zhi-hong, 2003. Study of Sequence Stratigraphy at Terminal of Ordovician. Earth Science, 28(1): 6-10.

Citation:

WANG Chuan-shang, WANG Xiao-feng, CHEN Xiao-hong, LI Zhi-hong, 2003. Study of Sequence Stratigraphy at Terminal of Ordovician. Earth Science, 28(1): 6-10.

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Study of Sequence Stratigraphy at Terminal of Ordovician

Center for Stratigraphy and Paleontology, CGS, Yichang 443003, China

Received Date: 2002-04-05
Publish Date: 2003-01-25

Abstract

Abstract

In order to meet the need of high precision stratigraphic correlation, especially of the correlation of condense deposits the black graptolitic shale, three types of sequence boundary are recognized based on integrated studied of bio, litho and chemo Stratigraphy, i. e., the Ⅰtype, Ⅱ type sequence boundaries and a special one in continuous deposits at the base of Tangyagraptus typicus sub zone marked by δ (¹³ C) anomaly, which divided the Wufeng Formation. into two sequences-sq1 and sq2. The sq1 are formed by 3 parasequences, namely Psq1, Psq2 and Psq3, and the sq2 by another 2 parasequences, Psq4 and Psq5 based on the study of δ (Ce) anomaly. Consequently the precision of stratigraphic subdivision and correlation is improved.
- terminal of Ordovician,
- black shale,
- sequence,
- sequence boundary,
- parasequence

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References(18)

References

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