Atacama Fault - Wikipedia
The Atacama Fault Zone (AFZ) is an extensive system of faults cutting across the Chilean Coastal Cordillera in Northern Chile between the Andean Mountain range and the Pacific Ocean. The fault system is north–south striking and runs for more than 1100 km North and up to 50 km in width through the Andean forearc region. [ 1 ]
3 Volcanoes and a Little “Something Else” in the Atacama …
Atacama, the driest place on earth, is well known for its volcanoes and geysers. It might not be as elegant as Versailles, but wandering around French gardens is not the same as walking through the Chilean dunes. If you decide to come, keep in mind that …
As part of the International Lithosphere Program’s “World Map of Major Active Faults,” the U.S. Geological Survey (USGS) is assisting in the compilation of a series of digital maps of Quaternary faults and folds in Western Hemisphere countries.
Structural control on volcanoes and magma paths from local- to …
2017年3月15日 · Our results indicate that N–S normal and reverse faults and N–S folds guide volcano emplacement and magma paths. Fold hinges especially controlled magma paths and location of volcanoes east of the Salar de Atacama. NW–SE faults also guided magma paths in the northern part of the study area.
Volcanoes of Chile - Chile Culture
In the last 20 years there have been 15 volcanic eruptions. The most historically active volcanoes in the north of Chile are: Lascar, San Pedro, Guallatiri and Isluga. In the Central region: Tupungatito, San Jose, Azul (Quizapu), Nevados de Chillan, Antuco, Copaihue, Llaima, Villarica Puyehue Cordon Caulle.
Geology and geochemistry of the Atacama Desert
2018年2月14日 · Notably dry climatic conditions of the Atacama Desert have been related to uplift of the Andes and are believed to have played an important role in the development of the most distinctive features of this desert, including: (i) nitrates and iodine deposits in the Central Depression, (ii) secondary enrichment in porphyry copper deposits in the ...
Active fault database for the Atacama Fault System (N-Chile) as …
The active fault database for the northernmost segment of the Atacama Fault System (AFS) is the result of creating a comprehensive catalogue of active faults in the forearc to investigate activity patterns of the forearc in relation with megathrust segmentation and upper plate seismicity in the Coastal Cordillera of N-Chile (19°12’S - 25°12 ...
Three-Dimensional Electrical Resistivity Image of the ... - Springer
2017年12月23日 · Dimensionality analysis indicates strong 3-D effects along the volcanic arc at the transition zone to the Altiplano, in the Preandean Depression and around the Precordillera Fault System at ~ 22°S. In general, the new 3-D models corroborate previous findings, but also enable a clearer image of lateral resistivity variations.
Volcanism and tectonism in the southern Central Andes: …
2018年1月26日 · Main contractional fault systems (red lines) associated with the Andean uplift that affected the Domeyko and Claudio Gay Ranges. Thrust fault systems also affected early stages of the volcanic arc. It is noticeable that some calderas cut …
Reverse Faulting as a Crucial Mechanism for Magma Ascent in ...
2010年12月1日 · In the Salar de Atacama Basin of northern Chile, there are good exposures of folded and faulted Neogene units (continental sediments, volcanic rocks and ignimbrites) and reverse faults...