Subvolcanic contact metasomatism at El Laco Volcanic Complex, Central Andes
نویسندگان
چکیده
منابع مشابه
An InSAR-based survey of volcanic deformation in the central Andes
[1] We extend an earlier interferometric synthetic aperture radar (InSAR) survey covering about 900 remote volcanos of the central Andes (14 –27 S) between the years 1992 and 2002. Our survey reveals broad (10s of km), roughly axisymmetric deformation at 4 volcanic centers: two stratovolcanoes are inflating (Uturuncu, Bolivia, and Hualca Hualca, Peru); another source of inflation on the border ...
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Satellite Interferometric Synthetic Aperture Radar (InSAR) permits both synoptic and detailed surveys of mag-matic activity in volcanic arcs. To illustrate this capability, we summarize here the results of an extended study of inferred magmatic activity in the central Figure 1. Interferometric coherence (a measure of the quality of the Interferometric Synthetic Aperture Radar, or InSAR, measure...
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Acquisition of nearly complete coverage of Thematic Mapper data for the central Andes between about 15’s to 34’s has stimulated a comprehensive and unprecedented study of the interaction of tectonics and climate in a young and actively developing major continental mountain belt. The paper briefly reviews the current state of our synoptic mapping of key physiographic, tectonic and climatic indic...
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Long-term hazard assessment, one of the bastions of risk-mitigation programs, is required for land-use planning and for developing emergency plans. To ensure quality and representative results, long-term volcanic hazard assessment requires several sequential steps to be completed, which include the compilation of geological and volcanological information, the characterisation of past eruptions,...
متن کاملPrediction of extreme floods in the eastern Central Andes based on a complex networks approach.
Changing climatic conditions have led to a significant increase in the magnitude and frequency of extreme rainfall events in the Central Andes of South America. These events are spatially extensive and often result in substantial natural hazards for population, economy and ecology. Here we develop a general framework to predict extreme events by introducing the concept of network divergence on ...
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ژورنال
عنوان ژورنال: Andean geology
سال: 2010
ISSN: 0718-7106
DOI: 10.4067/s0718-71062010000100005