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Stress modeling of tectonic blocks at Cape Kamchatka, Russia using principal stress proxies from high-resolution SAR: New evidence for the Komandorskiy Block

McElfresh, SBZ and Harbert, W and Ku, CY and Lin, JS (2002) Stress modeling of tectonic blocks at Cape Kamchatka, Russia using principal stress proxies from high-resolution SAR: New evidence for the Komandorskiy Block. Tectonophysics, 354 (3-4). 239 - 256. ISSN 0040-1951

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Abstract

A new data set of 851 lineaments mapped from European Remote Sensing satellites 1 and 2 full resolution Synthetic Aperture Radar (SAR) data are interpreted as geological proxies for stresses resulting from plate and block collision near the Cape Kamchatka region of the Kamchatka Peninsula using a Geographical Information Systems-based analysis. Numerical Manifold Method (NMM) analysis is used to model the stress field within the Cape Kamchatka region resulting from the collision of lithospheric plates and blocks. Results of our NMM model, using different plate motion and plate configuration in the region, are compared with orientation data for the mapped set of lineaments. These data suggest that the lineaments observed in SAR cannot be fully explained by a simple two-plate model in this in the Cape Kamchatka region. As an alternative, we propose that the data can be explained by the existence of the previously proposed Komandorskiy Block. Recent Global Positioning Satellite measurements in the Aleutian Islands support our lineament-derived model and show that the near Islands/Komandorskiy Island block of the extreme western Aleutians is moving independently of the North American Plate. © 2002 Elsevier Science B.V. All rights reserved.


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Details

Item Type: Article
Status: Published
Creators/Authors:
CreatorsEmailPitt UsernameORCID
McElfresh, SBZ
Harbert, Wharbert@pitt.eduHARBERT
Ku, CY
Lin, JS
Date: 18 September 2002
Date Type: Publication
Access Restriction: No restriction; Release the ETD for access worldwide immediately.
Journal or Publication Title: Tectonophysics
Volume: 354
Number: 3-4
Page Range: 239 - 256
DOI or Unique Handle: 10.1016/s0040-1951(02)00341-4
Institution: University of Pittsburgh
Schools and Programs: Dietrich School of Arts and Sciences > Geology and Planetary Science
Refereed: Yes
ISSN: 0040-1951
Date Deposited: 26 Aug 2012 13:43
Last Modified: 02 Feb 2019 16:58
URI: http://d-scholarship.pitt.edu/id/eprint/13675

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