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Record #180378:

Textural studies of retrograded ductile shear zones from Schirmacher Hills, East Antarctica / M.P. Gaur, R. Asthana, A. Chaturvedi.

Title: Textural studies of retrograded ductile shear zones from Schirmacher Hills, East Antarctica / M.P. Gaur, R. Asthana, A. Chaturvedi.
Author(s): Gaur, M. P.
Asthana, R.
Chaturvedi, A.
Date: 1996.
Publisher: New Delhi: Department of Ocean Development
In: Scientific report : twelfth Indian expedition to Antarctica. (1996.),
Abstract: Mesoscopic and microscopic textural studies of discrete ductile shear zones in Schirmacher Hills indicate development under low to middle amphibolite facies. Orthomylonites predominate in alternation with ultramylonites, and nature of felspar porphyroclasts indicates dominance of recrystallisation over rotational deformation during mylonitization. Porphyroclasts and matrix aggregates show textures developing during syntectonic growth and post tectonic recovery at elevated temperature. Evidence of repeated progressive mylonitization is also preserved in many of these retrograde discrete shear zones.
Notes:

In: Scientific report : twelfth Indian expedition to Antarctica / V.K. Dhargalkar, comp.

Keywords: 551.1/.4 -- Geology.
552 -- Petrology.
552.4 -- Metamorphic rocks.
91(08) -- Expeditions: 1981- Indian Scientific Expeditions to Antarctica.
91(08) -- Expeditions: 1992-94 ISEA, 12th.
B -- Geology and soil sciences.
(*7) -- Antarctic regions.
(*73) -- Dronning Maud Land.
(*733) -- Prinsesse Astrid Kyste.
SPRI record no.: 180378

MARCXML

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100 1# ‡aGaur, M. P.
245 10 ‡aTextural studies of retrograded ductile shear zones from Schirmacher Hills, East Antarctica /‡cM.P. Gaur, R. Asthana, A. Chaturvedi.
260 ## ‡aNew Delhi :‡bDepartment of Ocean Development,‡c1996.
300 ## ‡ap. 143-157 :‡bill., diags., tables, maps.
490 0# ‡aScientific Report. Indian Expedition to Antarctica ;‡vno. 10
490 0# ‡aDepartment of Ocean Development. Technical Publication ;‡vno. 10
500 ## ‡aIn: Scientific report : twelfth Indian expedition to Antarctica / V.K. Dhargalkar, comp.
520 3# ‡aMesoscopic and microscopic textural studies of discrete ductile shear zones in Schirmacher Hills indicate development under low to middle amphibolite facies. Orthomylonites predominate in alternation with ultramylonites, and nature of felspar porphyroclasts indicates dominance of recrystallisation over rotational deformation during mylonitization. Porphyroclasts and matrix aggregates show textures developing during syntectonic growth and post tectonic recovery at elevated temperature. Evidence of repeated progressive mylonitization is also preserved in many of these retrograde discrete shear zones.
650 07 ‡a551.1/.4 -- Geology.‡2udc
650 07 ‡a552 -- Petrology.‡2udc
650 07 ‡a552.4 -- Metamorphic rocks.‡2udc
650 07 ‡a91(08) -- Expeditions: 1981- Indian Scientific Expeditions to Antarctica.‡2udc
650 07 ‡a91(08) -- Expeditions: 1992-94 ISEA, 12th.‡2udc
650 07 ‡aB -- Geology and soil sciences.‡2local
651 #7 ‡a(*7) -- Antarctic regions.‡2udc
651 #7 ‡a(*73) -- Dronning Maud Land.‡2udc
651 #7 ‡a(*733) -- Prinsesse Astrid Kyste.‡2udc
700 1# ‡aAsthana, R.
700 1# ‡aChaturvedi, A.
773 0# ‡7nnam ‡aV.K. Dhargalkar, comp. ‡tScientific report : twelfth Indian expedition to Antarctica. ‡dNew Delhi : Department of Ocean Development, 1996. ‡wSPRI-140259
916 ## ‡aHS
917 ## ‡aUnenhanced record from Muscat, imported 2019
948 3# ‡a20220930 ‡bHS