Combining shallow and deep geophysical information: the Yehuin–Chepelmut Fault Zone in the Magallanes fold and thrust belt (Tierra del Fuego, Argentina)

2020 ◽  
Vol 109 (3) ◽  
pp. 971-994
Author(s):  
Jorge G. Lozano ◽  
Alejandro Tassone ◽  
Donaldo M. Bran ◽  
Luciano Onnis ◽  
Emanuele Lodolo ◽  
...  
Keyword(s):  
Fault Zone ◽  
Tierra Del Fuego ◽  
Thrust Belt ◽  
Fold And Thrust Belt ◽  
Geophysical Information

The central Fuegian fold and thrust belt in Tierra del Fuego: Strike‐slip tectonics superimposed onto compressional deformation

2020 ◽  
Vol 55 (9) ◽  
pp. 6079-6097
Author(s):  
Jorge G. Lozano ◽  
Donaldo M. Bran ◽  
Javier I. Peroni ◽  
Emanuele Lodolo ◽  
Marco Menichetti ◽  
...  
Keyword(s):  
Strike Slip ◽  
Tierra Del Fuego ◽  
Thrust Belt ◽  
Fold And Thrust Belt ◽  
Compressional Deformation

scholarly journals Structural and Mineralogical Characterization of a Fossil Hydrothermal System Located at the Outermost Front of the Southern Apennines Fold-and-Thrust Belt

Geofluids ◽  
2019 ◽  
Vol 2019 ◽  
pp. 1-14 ◽  
Author(s):  
Paolo Fulignati ◽  
Fabrizio Agosta ◽  
Claudia Belviso ◽  
Giacomo Prosser ◽  
Antonio Lettino ◽  
...  
Keyword(s):  
High Temperature ◽  
Fault Zone ◽  
Hydrothermal Alteration ◽  
Hydrothermal System ◽  
Positive Anomaly ◽  
Thrust Belt ◽  
Hydrothermal Circulation ◽  
Geothermal Resources ◽  
Mineralogical Characterization ◽  
Fold And Thrust Belt

Aiming at investigating the hydrothermal circulation along the eastern flank of the Vulture volcano, along the outermost edge of the southern Apennine fold-and-thrust belt (ftb), we studied the fossil hydrothermal alteration that mineralized a transtensional fault that crosscuts volcanoclastic rocks in the Rapolla area. On the basis of structural, mineralogical, and fluid inclusion data, three main stages of activity of the hydrothermal system are documented. Stage 1 was produced by the circulation of fluids having low-pH conditions (pH ≈ 3-4) and relatively high-SO42- activity, as testified by the hydrothermal alteration mainly carried out by the alunite group minerals (particularly jarosite), which is typical of an advanced argillic alteration facies. Hydrothermal fluids were characterized by a high temperature of about 200°-210°C. These hot fluids altered and mineralized the matrices of pyroclastic rocks and sealed both burial-related and fault-related fracture networks. Later hydrothermal circulation (Stage 2) was recorded by opal A-rich veins present both within and outside the fault zone. The fluids responsible of opal A precipitation were characterized by lower temperature conditions, probably lower than 100°C. Current goethite mineralization takes place along the main slip surfaces of the study high-angle fault zone due to low temperature (<30°C) underground water circulation. This study highlights that a high-temperature hydrothermal system developed in the past within the transtensional fault zone of the Rapolla area when a high thermal anomaly was present. If we take into account that this area is still affected by a heat flux positive anomaly (90 mW/m2), we may infer that it has the potentiality to be considered an interesting site for future exploration devoted to the finding of medium-enthalpy geothermal resources at depth.

Lateral structural variation along the Kalabagh Fault Zone, NW Himalayan foreland fold-and-thrust belt, Pakistan

2012 ◽  
Vol 50 ◽  
pp. 79-87 ◽  
Author(s):  
Shuhab D. Khan ◽  
Lize Chen ◽  
Sajjad Ahmad ◽  
Irshad Ahmad ◽  
Fayaz Ali
Keyword(s):  
Fault Zone ◽  
Structural Variation ◽  
Thrust Belt ◽  
Fold And Thrust Belt

scholarly journals Partition between collision and subduction accretionary prisms along an inherited transcurrent fault zone: New insights on the Taiwan fold and thrust belt

Tectonics ◽  
1999 ◽  
Vol 18 (3) ◽  
pp. 546-558 ◽  
Author(s):  
Stéphane Brusset ◽  
Pierre Souquet ◽  
Joachim Déramond ◽  
Jean-Claude Sibuet ◽  
Shu-Kun Hsu ◽  
...  
Keyword(s):  
Fault Zone ◽  
Thrust Belt ◽  
Transcurrent Fault ◽  
Fold And Thrust Belt ◽  
Accretionary Prisms

Paleoseismology of a newly discovered scarp in the Yakima fold-and-thrust belt, Kittitas County, Washington

2013 ◽  
Author(s):  
Elizabeth A. Barnett ◽  
Brian L. Sherrod ◽  
Robert Norris ◽  
Douglas Gibbons
Keyword(s):  
Thrust Belt ◽  
Fold And Thrust Belt
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