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The Lesser Himalayan Duplex in Sikkim: Implications for Variations in Himalayan Shortening

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Title The Lesser Himalayan Duplex in Sikkim: Implications for Variations in Himalayan Shortening
 
Creator MITRA, G
BHATTACHARYYA, K
MUKUL, M
 
Subject fold-thrust belt
deformation mechanisms
energy-balance
critical taper
western nepal
india
evolution
utah
geometry
idaho
duplex kinematics
balanced cross-section
fold-thrust belt
lesser himalaya
darjeeling-sikkim
 
Description Thrust duplexes account for large fractions of the total shortening in most fold-thrust belts (FTBs). They also provide an efficient mechanism for transferring slip upward from the basal decollement and for transporting roof thrust sheets over long distances. The Lesser Himalayan duplex (LHD) plays a prominent role in the overall evolution of the Himalayan FTB and has been described from Garhwal-Kumaon to Bhutan. In Sikkim the LHD shows unique structural geometry and has been responsible for transporting crystalline thrust sheets (MCT 1 and MCT 2) farther southward than other parts of the Himalaya. Such lateral variations in LHD geometry imply variations in the kinematic history of the Lesser Himalaya and variations in shortening and shortening history along the length of the Himalayan arc, and these are reflected in observable large scale structural patterns.
 
Publisher SPRINGER INDIA
 
Date 2011-08-30T06:25:07Z
2011-12-26T12:58:48Z
2011-12-27T05:49:21Z
2011-08-30T06:25:07Z
2011-12-26T12:58:48Z
2011-12-27T05:49:21Z
2010
 
Type Article
 
Identifier JOURNAL OF THE GEOLOGICAL SOCIETY OF INDIA, 75(1), 289-301
0016-7622
http://dspace.library.iitb.ac.in/xmlui/handle/10054/12218
http://hdl.handle.net/10054/12218
 
Language en