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Sedimentary-tectonic status of Permian Triassic boundary (250 Ma) in Gondwana stratigraphy of Peninsular India
被引:7
|作者:
Tewari, RC
[1
]
机构:
[1] DS Coll, Dept Geol, Aligarh 202001, Uttar Pradesh, India
关键词:
lithofacies;
palaeoslope;
Gondwana;
Permian;
Triassic;
D O I:
10.1016/S1342-937X(05)70142-8
中图分类号:
P [天文学、地球科学];
学科分类号:
07 ;
摘要:
The sedimentary-tectonic status of Permian-Triassic boundary is examined in Gondwana stratigraphy of Peninsular India based on lithofacies characters, palaeoslope and depositional models. The Late Permians represent meandering streams which flowed from southeast to northwest, except in Damodar basin where palaeoslope was from east to west. In Satpura and Pranhita-Godavari basins, the Early Triassics record braided stream facies models. The palaeoslope remains northwesterly during Early Triassic sedimentation. Integrated evidence suggests that tl-ie Permian-Triassic boundary in Peninsular Gondwana stratigraphy of India is marked by tectonic discordance and uplifts in the provenance.
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页码:185 / 189
页数:5
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