Deformation of terrane boundary shear zone (Lakhna shear zone) between Eastern Ghats Mobile Belt and Bastar Craton in Balangir and Kalahandi Districts, Orissa
The terrane boundary between Eastern Ghats Mobile Belt and the Bastar Craton in Balangir and Kalahandi Districts of Orissa is distinctly marked by nearly two kilometer wide southeasterly dipping ductile shear zone, designated as the Lakhna shear zone. The shear zone has largely developed in the cott...
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GEOLOGICAL SOC INDIA
2000
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ftiitbombay:oai:dsapce.library.iitb.ac.in:10054/7848 2023-05-15T13:59:38+02:00 Deformation of terrane boundary shear zone (Lakhna shear zone) between Eastern Ghats Mobile Belt and Bastar Craton in Balangir and Kalahandi Districts, Orissa BISWAL, TK JENA, SK DATTA, S DAS, R KHAN, K 2000 http://dspace.library.iitb.ac.in/xmlui/handle/10054/7848 http://hdl.handle.net/10054/7848 en eng GEOLOGICAL SOC INDIA JOURNAL OF THE GEOLOGICAL SOCIETY OF INDIA, 55(4), 367-380 0016-7622 http://dspace.library.iitb.ac.in/xmlui/handle/10054/7848 http://hdl.handle.net/10054/7848 India Transpression Antarctica Tectonics Example Strains Terrane Boundary Lakhna Shear Zone Strain Evaluation Eastern Ghats Mobile Belt Bastar Craton Orissa Article 2000 ftiitbombay 2021-06-03T17:46:05Z The terrane boundary between Eastern Ghats Mobile Belt and the Bastar Craton in Balangir and Kalahandi Districts of Orissa is distinctly marked by nearly two kilometer wide southeasterly dipping ductile shear zone, designated as the Lakhna shear zone. The shear zone has largely developed in the cotton, but for a narrow width within the Eastern Ghats. It is dominated by quartzofeldspathic mylonites characterised by S-C fabric, asymmetric winged porphyroclasts, quartz ribbons and intragranular faults. These structures have been effectively utilized in deducing the sense of shear and evaluating the amount of strain. The results show thrusting of the Eastern Ghats over the Bastar Craton. The minimum amount of throw along the thrust has been estimated to be around 2.5 to 4.7 km assuming a dominant simple shear deformation. Article in Journal/Newspaper Antarc* Antarctica DSpace@IIT Bombay (Indian Institute of Technology) |
institution |
Open Polar |
collection |
DSpace@IIT Bombay (Indian Institute of Technology) |
op_collection_id |
ftiitbombay |
language |
English |
topic |
India Transpression Antarctica Tectonics Example Strains Terrane Boundary Lakhna Shear Zone Strain Evaluation Eastern Ghats Mobile Belt Bastar Craton Orissa |
spellingShingle |
India Transpression Antarctica Tectonics Example Strains Terrane Boundary Lakhna Shear Zone Strain Evaluation Eastern Ghats Mobile Belt Bastar Craton Orissa BISWAL, TK JENA, SK DATTA, S DAS, R KHAN, K Deformation of terrane boundary shear zone (Lakhna shear zone) between Eastern Ghats Mobile Belt and Bastar Craton in Balangir and Kalahandi Districts, Orissa |
topic_facet |
India Transpression Antarctica Tectonics Example Strains Terrane Boundary Lakhna Shear Zone Strain Evaluation Eastern Ghats Mobile Belt Bastar Craton Orissa |
description |
The terrane boundary between Eastern Ghats Mobile Belt and the Bastar Craton in Balangir and Kalahandi Districts of Orissa is distinctly marked by nearly two kilometer wide southeasterly dipping ductile shear zone, designated as the Lakhna shear zone. The shear zone has largely developed in the cotton, but for a narrow width within the Eastern Ghats. It is dominated by quartzofeldspathic mylonites characterised by S-C fabric, asymmetric winged porphyroclasts, quartz ribbons and intragranular faults. These structures have been effectively utilized in deducing the sense of shear and evaluating the amount of strain. The results show thrusting of the Eastern Ghats over the Bastar Craton. The minimum amount of throw along the thrust has been estimated to be around 2.5 to 4.7 km assuming a dominant simple shear deformation. |
format |
Article in Journal/Newspaper |
author |
BISWAL, TK JENA, SK DATTA, S DAS, R KHAN, K |
author_facet |
BISWAL, TK JENA, SK DATTA, S DAS, R KHAN, K |
author_sort |
BISWAL, TK |
title |
Deformation of terrane boundary shear zone (Lakhna shear zone) between Eastern Ghats Mobile Belt and Bastar Craton in Balangir and Kalahandi Districts, Orissa |
title_short |
Deformation of terrane boundary shear zone (Lakhna shear zone) between Eastern Ghats Mobile Belt and Bastar Craton in Balangir and Kalahandi Districts, Orissa |
title_full |
Deformation of terrane boundary shear zone (Lakhna shear zone) between Eastern Ghats Mobile Belt and Bastar Craton in Balangir and Kalahandi Districts, Orissa |
title_fullStr |
Deformation of terrane boundary shear zone (Lakhna shear zone) between Eastern Ghats Mobile Belt and Bastar Craton in Balangir and Kalahandi Districts, Orissa |
title_full_unstemmed |
Deformation of terrane boundary shear zone (Lakhna shear zone) between Eastern Ghats Mobile Belt and Bastar Craton in Balangir and Kalahandi Districts, Orissa |
title_sort |
deformation of terrane boundary shear zone (lakhna shear zone) between eastern ghats mobile belt and bastar craton in balangir and kalahandi districts, orissa |
publisher |
GEOLOGICAL SOC INDIA |
publishDate |
2000 |
url |
http://dspace.library.iitb.ac.in/xmlui/handle/10054/7848 http://hdl.handle.net/10054/7848 |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_relation |
JOURNAL OF THE GEOLOGICAL SOCIETY OF INDIA, 55(4), 367-380 0016-7622 http://dspace.library.iitb.ac.in/xmlui/handle/10054/7848 http://hdl.handle.net/10054/7848 |
_version_ |
1766268303402074112 |