Similarity of palaeocurrent: A tool for stratigraphic correlation

Autor: Wataru Maejima, Rabindra Nath Hota
Rok vydání: 2016
Předmět:
Zdroj: Journal of the Geological Society of India. 87:397-400
ISSN: 0974-6889
0016-7622
DOI: 10.1007/s12594-016-0407-8
Popis: Conventional stratigraphic correlations are based on similarity of lithology, order of superposition, marker bed, unconformity, grade of metamorphism, fossil content and geochronology of the rock units. The Gondwana strata have been correlated referring to the above mentioned criteria. In the present work, the Talchir and Karharbari formations of two adjacent Gondwana basins separated by over 200 Km were examined with respect to their palaeocurrent directions. The study suggests that the palaeocurrent populations of different formations in both the basins are statistically dissimilar, this is because, both are stratigraphically distinct in order of superposition and thus are not correlatable. On the other hand, the palaeocurrent populations of the same formation in both the basins are statistically similar and stratigraphically correlatable. It is suggested that the similarity of palaeocurrent can be regarded as a criterion for stratigraphic correlation at least in local and regional scale.
Databáze: OpenAIRE
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