Present-day crustal deformation around Sagaing fault, Myanmar

Global Positioning System (GPS) measurement campaigns in Myanmar, conducted in 1998 and 2000, allow quantifying the present‐day crustal deformation around the Sagaing fault system in central Myanmar. Both a regional network installed at four points within the country and a local 18‐station network c...

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Bibliographic Details
Published in:Journal of Geophysical Research 2003-11, Vol.108 (B11), p.ETG6.1-n/a
Main Authors: Vigny, Christophe, Socquet, Anne, Rangin, Claude, Chamot-Rooke, Nicolas, Pubellier, Manuel, Bouin, Marie-Noëlle, Bertrand, Guillaume, Becker, M.
Format: Article
Language:English
Subjects:
Applied geophysics
Earth sciences
Earth, ocean, space
Exact sciences and technology
fault
GPS
Internal geophysics
Southeast Asia
tectonics
Tectonics. Structural geology. Plate tectonics
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Summary:Global Positioning System (GPS) measurement campaigns in Myanmar, conducted in 1998 and 2000, allow quantifying the present‐day crustal deformation around the Sagaing fault system in central Myanmar. Both a regional network installed at four points within the country and a local 18‐station network centered on the city of Mandalay across the Sagaing fault demonstrate that active deformation related to the northward motion of India is distributed across Myanmar in a platelet that extends from the western edge of the Shan Plateau in the east to the Andaman Trench in the west. In this platelet, deformation is rather diffuse and distributed over distinct fault systems. In the east, the Sagaing/Shan Scarp fault system absorbs 10 mm/yr). This GPS study combined with an on land geotectonic survey demonstrate that oblique slip of India along the rigid Sundaland block is accommodated by a partitioned system characterized by distribution of deformation over a wide zone.
ISSN:0148-0227
2156-2202
DOI:10.1029/2002JB001999