Late Paleozoic serpentinites and mafic schists from the Coast Range accretionary complex, central Chile: their relation to aeromagnetic anomalies

1990 ◽  
Vol 79 (1) ◽  
pp. 121-130 ◽  
Author(s):  
E. Godoy ◽  
T. Kato
Keyword(s):  
Late Paleozoic ◽  
Accretionary Complex ◽  
Coast Range ◽  
Central Chile ◽  
Aeromagnetic Anomalies

scholarly journals Provenance variations in the Late Paleozoic accretionary complex of central Chile as indicated by detrital zircons

2013 ◽  
Vol 23 (3) ◽  
pp. 1122-1135 ◽  
Author(s):  
F. Hervé ◽  
M. Calderón ◽  
C.M. Fanning ◽  
R.J. Pankhurst ◽  
E. Godoy
Keyword(s):  
Detrital Zircons ◽  
Late Paleozoic ◽  
Accretionary Complex ◽  
Central Chile ◽  
Provenance Variations

scholarly journals The late Paleozoic paired metamorphic belt of southern Central Chile: Consequence of a near-trench thermal anomaly?

2021 ◽  
Author(s):  
Guido Gianni
Keyword(s):  
Thermal Anomaly ◽  
Accretionary Prism ◽  
Late Paleozoic ◽  
Metamorphic Belt ◽  
Central Chile ◽  
Geodynamic Process ◽  
Mid Ocean Ridge ◽  
Southern Central ◽  
Geological Units ◽  
Ocean Ridge

The hypothesis of a subduction-related Miyashiro-type paired metamorphic belt for the origin of the late Paleozoic igneous and metamorphic complex in the Andean Coastal Cordillera has remained unquestioned since its proposal in the early seventies. A synthesis of the advances in the study of these metamorphic rocks between 33°S and 42°S, revising field relations among geological units, and geochemical and geochronological data from the contemporaneous granitoids of the Coastal Batholith, highlights inconsistencies in this model. The record of short-lived forearc magmatism in the late Paleozoic intruding the partially synchronous accretionary prism, and geochemical and isotopic data from the igneous rocks indicating sources from the accretionary prism sediments and the back-top lithosphere, suggest a departure from typical subduction settings. I conclude that the anomalous configuration of the paired metamorphic belt and the associated Coastal Batholith resulted from a complex geodynamic process involving a near-trench thermal anomaly caused by the subduction of a trench parallel mid-ocean ridge.

Late Paleozoic K/Ar ages of blueschists from Pichilemu, Central Chile

1974 ◽  
Vol 23 (2) ◽  
pp. 261-264 ◽  
Author(s):  
Francisco Herve ◽  
Francisco Munizaga ◽  
Estanislao Godoy ◽  
Luis Aguirre
Keyword(s):  
Late Paleozoic ◽  
Central Chile

Timing the tectonic mingling of ultramafic rocks and metasediments in the southern section of the coastal accretionary complex of central Chile

2017 ◽  
Vol 60 (16) ◽  
pp. 2031-2045 ◽  
Author(s):  
Rurik Romero ◽  
José M. González-Jiménez ◽  
Fernando Barra ◽  
Mathieu Leisen ◽  
Leonardo N. Garrido ◽  
...  
Keyword(s):  
Ultramafic Rocks ◽  
Accretionary Complex ◽  
Central Chile ◽  
Southern Section

Granitoids of the Coast Range of central Chile: Geochronology and geologic setting

1988 ◽  
Vol 1 (2) ◽  
pp. 185-194 ◽  
Author(s):  
F. Hervé ◽  
F. Munizaga ◽  
M.A. Parada ◽  
M. Brook ◽  
R.J. Pankhurst ◽  
...  
Keyword(s):  
Coast Range ◽  
Central Chile ◽  
Geologic Setting
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