High-frequency Cycles and High-resolution Sequence Stratigraphy of Ruyang Group, Mid-Proterozoic Era in Western Henan
- Received Date: 1996-10-21
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Key words:
- High-frequency cycle /
- sedimentary facie sequence /
- microelement /
- carbon isotope
Abstract: Ruyang Group in the western Henan can be divided into six third-order sequences. These sequences are made of some high-frequency sequence. The sequence 6 in them contains 9 parasequences sets and more than 36 parasequence. A parasoquence consistsof various sedimentary facies having upward-shallowing sequence, and is bounded by hiatus. The grain size is upward-coarseningand bed is upward thicking in parasequence. Geochemical data show As, Sb decrease and &13C increase in upward-shallowing se-quence. The character of the parasequence has relationship with to the sea-level change.
Citation: | Lei Zhenyu, Li Yongtie. High-frequency Cycles and High-resolution Sequence Stratigraphy of Ruyang Group, Mid-Proterozoic Era in Western Henan[J]. Acta Sedimentologica Sinica, 1997, 15(S1): 41-45. |