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Dasgupta, Nilanjan
- An Example of Consistent Palaeostress Regime Resulting in Morphometric Irregularity in the Northwestern Part of Noachis Terra, Mars
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Authors
Affiliations
1 Department of Geology, Asutosh College, 92 S.P. Mukherjee Road, Kolkata 700 026, IN
2 Space Applications Centre (ISRO), Jodhpur Tekra, Satellite Road, Ahmedabad 380 015, IN
3 Department of Geology, Presidency University, 86/1 College Street, Kolkata 700 073, IN
1 Department of Geology, Asutosh College, 92 S.P. Mukherjee Road, Kolkata 700 026, IN
2 Space Applications Centre (ISRO), Jodhpur Tekra, Satellite Road, Ahmedabad 380 015, IN
3 Department of Geology, Presidency University, 86/1 College Street, Kolkata 700 073, IN
Source
Current Science, Vol 108, No 12 (2015), Pagination: 2156-2159Abstract
No Abstract.Full Text
- Evolution of Pyrrhae Fossae, Mars: an explication from the age estimation using the Buffered Crater Counting technique
Abstract Views :185 |
PDF Views:98
Authors
Affiliations
1 Department of Geology, Presidency University, 86/1 College Street, Kolkata 700 073, India; Department of Geology, Asutosh College, 92, S.P. Mukherjee Road, Kolkata 700 026, India
2 Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Kanagawa 252-5210, Japan
3 Department of Geology, Asutosh College, 92, S.P. Mukherjee Road, Kolkata 700 026, India
4 Department of Geology, Presidency University, 86/1 College Street, Kolkata 700 073, India
5 Department of Earth and Planetary Science, School of Science, University of Tokyo, Hongo 7-3-1, Bunkyo, Tokyo 113-0033, Japan
1 Department of Geology, Presidency University, 86/1 College Street, Kolkata 700 073, India; Department of Geology, Asutosh College, 92, S.P. Mukherjee Road, Kolkata 700 026, India
2 Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Kanagawa 252-5210, Japan
3 Department of Geology, Asutosh College, 92, S.P. Mukherjee Road, Kolkata 700 026, India
4 Department of Geology, Presidency University, 86/1 College Street, Kolkata 700 073, India
5 Department of Earth and Planetary Science, School of Science, University of Tokyo, Hongo 7-3-1, Bunkyo, Tokyo 113-0033, Japan
Source
Current Science, Vol 121, No 7 (2021), Pagination: 906-911Abstract
Pyrrhae Fossae (PyFo) on Mars is a palaeo-extensional tectonic feature preserved within a Noachian basement in the north-western Noachis Terra (NT). We have tried to understand the possible origin of the stress responsible for the evolution of these tectonic structures and to correlate their formation with other global Martian events. We estimated the absolute model age of PyFo, using the Buffered Crater Counting (BCC) technique, which indicates that these extensional structures were formed at ~3.79 Ga, after the basement formation at ~3.98 Ga. Considering the ages and geology of the terrains adjoining the PyFo region, we propose that the regional scale flexural bending was promoted either in response to Tharsis-related volcano-tectonic load or thinning of northern lowlands producing extension at the upper crustal level, generating these fossae at the early stage of Martian evolution.Keywords
Buffered Crater Counting, extension, flexure, Noachis Terra, Pyrrhae FossaeFull Text
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