Tectonic implication of the apatite fission-track analysis of the mylonites from the Terrane Boundary Shear Zone of the Eastern Ghats Mobile Belt around Lakhna, Orissa, India
Apatite fission-track analysis of the rocks within and adjoining the Terrane Boundary Shear Zone of the Eastern Ghats Mobile Belt, India, yield apparent ages ranging from 340+/-46 to 268+/-34 Ma. They are interpreted to be the result of slow (Ordovician to Recent) cooling/exhumation. Erosion rates a...
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INT ASSOC GONDWANA RESEARCH
2003
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ftiitbombay:oai:dsapce.library.iitb.ac.in:10054/9015 2023-05-15T14:00:31+02:00 Tectonic implication of the apatite fission-track analysis of the mylonites from the Terrane Boundary Shear Zone of the Eastern Ghats Mobile Belt around Lakhna, Orissa, India BISWAL, TK SEWARD, D 2003 http://dspace.library.iitb.ac.in/xmlui/handle/10054/9015 https://doi.org/10.1016/S1342-937X(05)70981-3 http://hdl.handle.net/10054/9015 en eng INT ASSOC GONDWANA RESEARCH GONDWANA RESEARCH, 6(2), 321-325 1342-937X http://dx.doi.org/10.1016/S1342-937X(05)70981-3 http://dspace.library.iitb.ac.in/xmlui/handle/10054/9015 http://hdl.handle.net/10054/9015 Bastar Craton Deformation Histories Apatite Fission-Track Analysis Eastern Ghats Mobile Belt Terrane Boundary Shear Zone Kerguelen Hot Spot Article 2003 ftiitbombay https://doi.org/10.1016/S1342-937X(05)70981-3 2021-06-03T17:52:58Z Apatite fission-track analysis of the rocks within and adjoining the Terrane Boundary Shear Zone of the Eastern Ghats Mobile Belt, India, yield apparent ages ranging from 340+/-46 to 268+/-34 Ma. They are interpreted to be the result of slow (Ordovician to Recent) cooling/exhumation. Erosion rates are calculated at approximately 0.5-0.25degrees C/My. Genetic algorithm modeling suggests the possibility of a minor heating event at approximately 120 Ma; this is the time when the region was passing over Kerguelen hot spot as the Indian plate separated from Antarctica. The rocks within and outside the shear zone do not show any difference in age suggesting that there has been no movement (reactivation) along the shear zone during this drifting. Based on this assumption, the slightly higher rates of cooling, following this event, are attributed to continued slow denudation as well as thermal relaxation of the continent subsequent to hot spot influence. Article in Journal/Newspaper Antarc* Antarctica DSpace@IIT Bombay (Indian Institute of Technology) Indian Kerguelen Gondwana Research 6 2 321 325 |
institution |
Open Polar |
collection |
DSpace@IIT Bombay (Indian Institute of Technology) |
op_collection_id |
ftiitbombay |
language |
English |
topic |
Bastar Craton Deformation Histories Apatite Fission-Track Analysis Eastern Ghats Mobile Belt Terrane Boundary Shear Zone Kerguelen Hot Spot |
spellingShingle |
Bastar Craton Deformation Histories Apatite Fission-Track Analysis Eastern Ghats Mobile Belt Terrane Boundary Shear Zone Kerguelen Hot Spot BISWAL, TK SEWARD, D Tectonic implication of the apatite fission-track analysis of the mylonites from the Terrane Boundary Shear Zone of the Eastern Ghats Mobile Belt around Lakhna, Orissa, India |
topic_facet |
Bastar Craton Deformation Histories Apatite Fission-Track Analysis Eastern Ghats Mobile Belt Terrane Boundary Shear Zone Kerguelen Hot Spot |
description |
Apatite fission-track analysis of the rocks within and adjoining the Terrane Boundary Shear Zone of the Eastern Ghats Mobile Belt, India, yield apparent ages ranging from 340+/-46 to 268+/-34 Ma. They are interpreted to be the result of slow (Ordovician to Recent) cooling/exhumation. Erosion rates are calculated at approximately 0.5-0.25degrees C/My. Genetic algorithm modeling suggests the possibility of a minor heating event at approximately 120 Ma; this is the time when the region was passing over Kerguelen hot spot as the Indian plate separated from Antarctica. The rocks within and outside the shear zone do not show any difference in age suggesting that there has been no movement (reactivation) along the shear zone during this drifting. Based on this assumption, the slightly higher rates of cooling, following this event, are attributed to continued slow denudation as well as thermal relaxation of the continent subsequent to hot spot influence. |
format |
Article in Journal/Newspaper |
author |
BISWAL, TK SEWARD, D |
author_facet |
BISWAL, TK SEWARD, D |
author_sort |
BISWAL, TK |
title |
Tectonic implication of the apatite fission-track analysis of the mylonites from the Terrane Boundary Shear Zone of the Eastern Ghats Mobile Belt around Lakhna, Orissa, India |
title_short |
Tectonic implication of the apatite fission-track analysis of the mylonites from the Terrane Boundary Shear Zone of the Eastern Ghats Mobile Belt around Lakhna, Orissa, India |
title_full |
Tectonic implication of the apatite fission-track analysis of the mylonites from the Terrane Boundary Shear Zone of the Eastern Ghats Mobile Belt around Lakhna, Orissa, India |
title_fullStr |
Tectonic implication of the apatite fission-track analysis of the mylonites from the Terrane Boundary Shear Zone of the Eastern Ghats Mobile Belt around Lakhna, Orissa, India |
title_full_unstemmed |
Tectonic implication of the apatite fission-track analysis of the mylonites from the Terrane Boundary Shear Zone of the Eastern Ghats Mobile Belt around Lakhna, Orissa, India |
title_sort |
tectonic implication of the apatite fission-track analysis of the mylonites from the terrane boundary shear zone of the eastern ghats mobile belt around lakhna, orissa, india |
publisher |
INT ASSOC GONDWANA RESEARCH |
publishDate |
2003 |
url |
http://dspace.library.iitb.ac.in/xmlui/handle/10054/9015 https://doi.org/10.1016/S1342-937X(05)70981-3 http://hdl.handle.net/10054/9015 |
geographic |
Indian Kerguelen |
geographic_facet |
Indian Kerguelen |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_relation |
GONDWANA RESEARCH, 6(2), 321-325 1342-937X http://dx.doi.org/10.1016/S1342-937X(05)70981-3 http://dspace.library.iitb.ac.in/xmlui/handle/10054/9015 http://hdl.handle.net/10054/9015 |
op_doi |
https://doi.org/10.1016/S1342-937X(05)70981-3 |
container_title |
Gondwana Research |
container_volume |
6 |
container_issue |
2 |
container_start_page |
321 |
op_container_end_page |
325 |
_version_ |
1766269701375131648 |