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Tectonics of the Southern Central Andes pp 7–21Cite as

The Lithospheric Structure of the Central Andes (20–26°S) as Inferred from Interpretation of Regional Gravity

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Abstract

Isostatic calculations, inversion theory and 3D modelling were applied to the regional gravity database in a segment of the Central Andes between 20° and 26° S. It extends from the Peru Chile Trench in the Pacific Ocean in the west to the NW Argentinean Chaco Plains in the east. Characteristics of the Andean orogen are marked by a negative Bouguer anomaly of more than -450 mGal and great gravity anomalies even in a north-south direction. In this chapter, we present quantitative interpretations from analysis of the regional gravity field along that particular geotraverse which was compiled by the Berlin Research Group “Mobility of Active Continental Margins” and its partner institutions in South America. Tree-dimensional forward modelling as part of an integrated interpretation leads to a crustal depth of less than 70 km in the central part.

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Author information

Authors and Affiliations

  1. Fachrichtung Geophysik, Freie Universität, Malteserstr. 74-100, D-1000, Berlin 46, Germany

    Hans -Jürgen Götze

Authors
  1. Hans -Jürgen Götze
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  2. Bernd Lahmeyer
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  3. Sabine Schmidt
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  4. Sibyll Strunk
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Editors and Affiliations

  1. Institut für Geologie, Geophysik und Geoinformatik, Freie Universität Berlin, Malteserstr. 74-100, 12249, Berlin, Germany

    Klaus-Joachim Reutter , Ekkehard Scheuber  & Peter J. Wigger ,  & 

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© 1994 Springer-Verlag Berlin Heidelberg

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Götze, HJ., Lahmeyer, B., Schmidt, S., Strunk, S. (1994). The Lithospheric Structure of the Central Andes (20–26°S) as Inferred from Interpretation of Regional Gravity. In: Reutter, KJ., Scheuber, E., Wigger, P.J. (eds) Tectonics of the Southern Central Andes. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-77353-2_1

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  • DOI: https://doi.org/10.1007/978-3-642-77353-2_1

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-77355-6

  • Online ISBN: 978-3-642-77353-2

  • eBook Packages: Springer Book Archive

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