TY - JOUR
T1 - Structural relationship between the Karakoram and Longmu Co fault systems, southwestern Tibetan Plateau, revealed by ASTER remote sensing
AU - Bohon, Wendy
AU - Hodges, Kip V.
AU - Tripathy-Lang, Alka
AU - Arrowsmith, J. Ramón
AU - Edwards, Christopher
N1 - Funding Information:
We would like to thank the ASU Mars Space Flight Facility for the use of their facilities and resources, Lela Prashad for her assistance acquiring the ASTER data, Nathaniel Borneman for his help in the field, and Frances Cooper, Byron Adams, and Scott Dickenshied for their assistance and input with the data processing. CP Dorjay and his excellent team of drivers and field assistants also deserves our most sincere thanks! We would also like to thank reviewers Alex Robinson, Roberto Weinberg, and Nick Van Buer for their thoughtful and thorough reviews of this work; their insight and suggestions strengthened and improved the manuscript immensely. This work was completed using funds from U.S. National Science Foundation grant EAR-0642731.
Publisher Copyright:
© 2018 The Authors.
PY - 2018
Y1 - 2018
N2 - The western margin of the Tibetan Plateau is defined by the NE-striking, sinistral Longmu Co fault system and the NW-striking, dextral Karakoram fault system. The region of convergence of these two systems is remote and politically sensitive, precluding systematic geologic mapping in the field. As a consequence, there is considerable controversy regarding the relationship between these regionally important structural features. Analysis of Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) multispectral data and validation with field mapping provide new insights via the production of a lithologic map. Detailed analysis of the ASTER data shows that the two fault systems do not intersect but instead become parallel. Additionally, the geometry and sense of motion of the two fault systems imply that they are acting as a conjugate fault pair, in conjunction with the normal Angmong fault system, allowing for the extrusion of Tibetan lithosphere toward the east.
AB - The western margin of the Tibetan Plateau is defined by the NE-striking, sinistral Longmu Co fault system and the NW-striking, dextral Karakoram fault system. The region of convergence of these two systems is remote and politically sensitive, precluding systematic geologic mapping in the field. As a consequence, there is considerable controversy regarding the relationship between these regionally important structural features. Analysis of Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) multispectral data and validation with field mapping provide new insights via the production of a lithologic map. Detailed analysis of the ASTER data shows that the two fault systems do not intersect but instead become parallel. Additionally, the geometry and sense of motion of the two fault systems imply that they are acting as a conjugate fault pair, in conjunction with the normal Angmong fault system, allowing for the extrusion of Tibetan lithosphere toward the east.
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U2 - 10.1130/GES01515.1
DO - 10.1130/GES01515.1
M3 - Article
AN - SCOPUS:85051116628
SN - 1553-040X
VL - 14
SP - 1837
EP - 1850
JO - Geosphere
JF - Geosphere
IS - 4
ER -