Journal
GEODESY AND GEODYNAMICS
Volume 9, Issue 1, Pages 93-107Publisher
SCIENCE PRESS
DOI: 10.1016/j.geog.2017.09.006
Keywords
Magnetic layer depth; Curie isotherm; Heat flow; Crustal seismicity; Flat subduction; South America
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- COLCIENCIAS
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We have estimated the DBML (depth to the bottom of the magnetic layer) in South America from the inversion of magnetic anomaly data extracted from the EMAG2 grid. The results show that the DBML values, interpreted as the Curie isotherm, vary between similar to 10 and similar to 60 km. The deepest values (>similar to 45) are mainly observed forming two anomalous zones in the central part of the Andes Cordillera. To the east of the Andes, in most of the stable cratonic area of South America, intermediate values (between similar to 25 and similar to 45 km) are predominant. The shallowest values (
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