Antarctica plate motion

Ghavri, Sapna ; Catherine, Joshi K. ; Ambikapathy, A. ; Kumar, Amit ; Gahalaut, Vineet K. (2017) Antarctica plate motion Proceedings of the Indian National Science Academy, 83 (2). pp. 437-440. ISSN 2454-9983

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Official URL: http://insajournal.in/insaojs/index.php/proceeding...

Related URL: http://dx.doi.org/10.16943/ptinsa/2017/48951

Abstract

We have analysed GPS measurements of site motion from fifty sites in the Antarctica, including the one set up by us at Maitri. The Maitri site exhibits a predominantly northward velocity of ~8 mm/year. Elsewhere on the Antarctica plate the site velocity estimates vary from 4 to 20 mm/year and exhibit spectacular rotation of the atlantic plate. The estimated pole of the Antarctica plate is located on the plate itself and thus the plate, surrounded by mostly the divergent plate margins, appear to spin along this pole. Large seasonal variations are seen in displacement time series from sites which are located closer to the pole.

Item Type:Article
Source:Copyright of this article belongs to Indian National Science Academy.
Keywords:Antarctica; Maitri; Plate Motion; GPS Measurements
ID Code:112749
Deposited On:23 Apr 2018 07:12
Last Modified:07 Jun 2018 09:49

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