Publication Date:
1999-10-16
Description:
Seismic anisotropy and P-wave delays in New Zealand imply widespread deformation in the underlying mantle, not slip on a narrow fault zone, which is characteristic of plate boundaries in oceanic regions. Large magnitudes of shear-wave splitting and orientations of fast polarization parallel to the Alpine fault show that pervasive simple shear of the mantle lithosphere has accommodated the cumulative strike-slip plate motion. Variations in P-wave residuals across the Southern Alps rule out underthrusting of one slab of mantle lithosphere beneath another but permit continuous deformation of lithosphere shortened by about 100 kilometers since 6 to 7 million years ago.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Molnar -- Anderson -- Audoine -- Eberhart-Phillips -- Gledhill -- Klosko -- McEvilly -- Okaya -- Savage -- Stern -- Wu -- New York, N.Y. -- Science. 1999 Oct 15;286(5439):516-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Quaternary Research Center and Geophysics Program, University of Washington, Seattle, WA, 98195-1360, USA, and Department of Earth Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, US.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10521344" target="_blank"〉PubMed〈/a〉
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
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Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
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