Space Geodetic Observations of Nazca-South America Convergence Across the Central Andes-Reference-Cited by-同舟云学术

Space Geodetic Observations of Nazca-South America Convergence Across the Central Andes

Published:1998-01-16 Issue:5349 Volume:279 Page:358-362
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Norabuena Edmundo¹²³⁴⁵,Leffler-Griffin Lisa¹²³⁴⁵,Mao Ailin¹²³⁴⁵,Dixon Timothy¹²³⁴⁵,Stein Seth¹²³⁴⁵,Sacks I. Selwyn¹²³⁴⁵,Ocola Leonidas¹²³⁴⁵,Ellis Michael¹²³⁴⁵

Affiliation:

1. E. Norabuena, Instituto Geofisico del Peru, Apartado 3747, Lima 100, Peru, and Rosenstiel School for Marine and Atmospheric Sciences, University of Miami, 4600 Rickenbacker Causeway, Miami, FL 33149, USA.

2. L. Leffler-Griffin and S. Stein, Department of Geological Sciences, Northwestern University, Evanston, IL 60208, USA.

3. A. Mao and T. Dixon, Rosenstiel School for Marine and Atmospheric Sciences, University of Miami, 4600 Rickenbacker Causeway, Miami, FL 33149, USA.

4. I. S. Sacks, Department of Terrestrial Magnetism, Carnegie Institute of Washington, 5241 Broad Branch Road, NW, Washington, DC 20015, USA.

5. L. Ocola, Instituto Geofisico del Peru, Apartado 3747, Lima 100, Peru.

Abstract

Space geodetic data recorded rates and directions of motion across the convergent boundary zone between the oceanic Nazca and continental South American plates in Peru and Bolivia. Roughly half of the overall convergence, about 30 to 40 millimeters per year, accumulated on the locked plate interface and can be released in future earthquakes. About 10 to 15 millimeters per year of crustal shortening occurred inland at the sub-Andean foreland fold and thrust belt, indicating that the Andes are continuing to build. Little (5 to 10 millimeters per year) along-trench motion of coastal forearc slivers was observed, despite the oblique convergence.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference68 articles.

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