Paleomagnetic Constraint on the Age of the Shyok Suture Zone
Name
JGR Solid Earth - 2023 - Martin - Paleomagnetic Constraint on the Age of the Shyok Suture Zone.pdf
Description
Published version
Size
32.59 MB
Format
Adobe PDF
Checksum (MD5)
16625dbd68729922517c2c570c06c73b
Author(s)
Martin, Craig R
Jagoutz, Oliver
Upadhyay, Rajeev
van Tongeren, Jill A
Mueller, Paul A
Weiss, Benjamin P
Date Issued
October 16, 2023
Journal
Journal of Geophysical Research: Solid Earth
Publisher
American Geophysical Union
Citation
Martin, C. R., Jagoutz, O., Upadhyay, R., vanTongeren, J. A., Mueller, P. A., & Weiss, B. P. (2023). Paleomagnetic constraint on the age of the Shyok suture zone. Journal of Geophysical Research: Solid Earth, 128, e2022JB026137.
Version
Final published version
Abstract
The India‐Eurasia collision is a key case study for understanding the influence of plate tectonic processes on Earth's crust, atmosphere, hydrosphere, and biosphere. However, the timing of the final India‐Eurasia continental collision is debated due to significant uncertainty in the age of the collision between the Kohistan‐Ladakh arc (KLA) and Eurasia along the Shyok suture zone. Here we present paleomagnetic results that constrain the Karakoram terrane in northwest India to a paleolatitude of 19.9 ± 8.9°N between 93 and 75 million years ago (Ma). Our results show that the Karakoram terrane was situated on the southern margin of Eurasia in the Late‐Cretaceous. Our results indicate that the KLA and Eurasian continent had a not converged until <61.6 Ma, placing a Paleocene older limit on the age of final closure of the Shyok suture zone. This suggests that the India‐Eurasia collision in northwestern India likely occurred after the closure of the oceanic basin between the KLA and Eurasia. The Paleocene collision event affecting India that has been widely interpreted to represent final India‐Eurasia collision instead records the arc‐continent collision between the KLA and the northern edge of India prior to final India‐Eurasia collision. Final India‐Eurasia collision in northwest India most likely occurred after the closure of the oceanic basin between the KLA and Eurasia.
MIT Department
Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
10.1029/2022jb026137
