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Stella Poma, Adriana Ramos, Vanesa D. Litvak, Sonia Quenardelle, Emma B. Maisonnave, Iris Díaz
Pág. 249 - 274
A Miocene to Pliocene (13 to 4.6 Ma) mostly pyroclastic sequence is exposed along the Iglesia Valley, to
the east of the former main volcanic arc. This area is a transitional region between Cordillera Frontal and Precordillera,
over the flat slab segment...
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Zuxing Chen, Landry Soh Tamehe, Haiyan Qi, Yuxiang Zhang, Zhigang Zeng and Mingjiang Cai
The Yonaguni Knoll IV is an active seafloor hydrothermal system associated with submarine silicic volcanism located in the ?cross back-arc volcanic trail? (CBVT) in the southwestern Okinawa Trough. However, the behavior of volatiles during magmatic diffe...
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Peter K. Bijl,G. Raquel Guerstein,Edgar A. Sanmiguel Jaimes,Appy Sluijs,Silvio Casadio,Victor Valencia,Cecilia R. Amenábar,Alfonso Encinas
Pág. 185 - 218
The tectonic opening of the Tasmanian Gateway and Drake Passage represented crucial geographic requirements for the Cenozoic development of the Antarctic Circumpolar Current (ACC). Particularly the tectonic complexity of Drake Passage has hampered the ex...
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C. Mike Bell,Manuel Suarez
Pág. 203 - 225
ABSTRACT. The Apeleg Formation is a Lower Cretaceous marine succession of the Aisen Basin of southern Chile. Clastic sediments were deposited in a shallow epicontinental sea in a north-south elongated retroarc basin. This sedimentary basin developed as t...
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C. Mike Bell,Manuel Suarez
Pág. 203 - 225
ABSTRACT. The Apeleg Formation is a Lower Cretaceous marine succession of the Aisen Basin of southern Chile. Clastic sediments were deposited in a shallow epicontinental sea in a north-south elongated retroarc basin. This sedimentary basin developed as t...
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Asrurifak M.,Irsyam M.,Budiono B.,Triyoso W.,Hendriyawan Hendriyawan
Pág. 52 - 62
This study is performed to develop spectral hazard map for Indonesia with a Return Period of 2500 years earthquake. It will be proposed for revision of the Indonesian hazard map in SNI-03-1726-2002 as response to the meeting organized by the Department o...
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Ricardo A. Astini,Federico M. Davila
Pág. 241 - 254
The new denomination of Cerro Morado Group is proposed for a thick volcanosedimentary succession (727 m) that unconformably overlies the Early Ordovician Famatina Group in the central region of the Sierra de Famatina, Andean foreland of western Argentina...
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Ernesto Ausilio, Maria Giovanna Durante and Paolo Zimmaro
The performance of a large number of critical infrastructure systems needs to be periodically re-evaluated. This is especially so when such systems are located in seismic areas and are subjected to ageing effects. Seismic re-evaluations are typically per...
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Nikolai Berdnikov, Pavel Kepezhinskas, Natalia Konovalova and Nikita Kepezhinskas
Gold is typically transported by mafic and evolved magmas into the upper crust to be deposited in shallow oxidized porphyry and epithermal environments. However, the magmatic behavior of gold is still poorly understood and warrants further attention. Add...
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Nikolai Berdnikov, Victor Nevstruev, Pavel Kepezhinskas, Ivan Astapov and Natalia Konovalova
While gold partitioning into hydrothermal fluids responsible for the formation of porphyry and epithermal deposits is currently well understood, its behavior during the differentiation of metal-rich silicate melts is still subject of an intense scientifi...
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Vincent Van Hinsberg, Catherine Crotty, Stan Roozen, Kristoffer Szilas and Alexander Kisters
The Tartoq greenstone belt of southwest Greenland represents a well-preserved section through >3 Ga old oceanic crust and has the potential to provide important constraints on the composition and geodynamics of the Archaean crust. Based on a detailed ...
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Junji Koyama, Motohiro Tsuzuki and Kiyoshi Yomogida
A distinct difference of the earthquake activity in megathrust subduction zones is pointed out, concerning seismic segmentations in the vicinity of Japan?that is, the apparent distribution of earthquake hypocenters characterized by Along-dip Double Segme...
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Darío L. Orts,Andrés Folguera,Mario Giménez,Víctor Ramos
Pág. 220 - 241
The Southern Central Andes at 36ºS have been recognized as an orogenic belt where contraction, accommodatedmainly by basement structures, is associated with the inversion of a Late Triassic-Early Jurassic extensionaldetachment. Based on a structural cros...
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Manuel Suarez,Marcelo Marquez
Pág. 63 - 80
The Chubut Basin (new name for the Liassic Western Chubut Basin of other authors), developed during the Early Jurassic in the western part of central extra-Andean Patagonia in Argentina (42°30S and 44°30S), accumulated shallow marine and continental sedi...
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Paul Duhart,Alberto C. Adriasola
The Coastal Ranges in the western part of the Chiloé Archipelago represent an emerged forearc high at the subduction front of south-central Chile. Prior to the Cenozoic framework of the subducting Farallón and Nazca plates beneath the South American plat...
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Hans Niemeyer
Pág. 163 - 181
RESUMEN. El complejo Igneo-Sedimentario del Cordon de Lila, de probable edad ordovicica, esta formado por 3.000 m de lavas y volcanoclastitas basicas, intermedias y acidas con intercalaciones de limolitas y grauwacas turbiditicas. Las lavas presentan un ...
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Hans Niemeyer
Pág. 163 - 181
RESUMEN. El complejo Igneo-Sedimentario del Cordon de Lila, de probable edad ordovicica, esta formado por 3.000 m de lavas y volcanoclastitas basicas, intermedias y acidas con intercalaciones de limolitas y grauwacas turbiditicas. Las lavas presentan un ...
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Rolf Kilian,Ernst Hegner,Steven Fortier,Muharrem Satir
Pág. 203 - 218
ABSTRACT. Miocene to Holocene volcanic rocks of Chimborazo and associated volcanoes in the Western Cordillera of Ecuador range in composition from basaltic andesite to rhyolite. They were erupted through Cretaceous accretionary mafic basement. Three calk...
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Rolf Kilian,Ernst Hegner,Steven Fortier,Muharrem Satir
Pág. 203 - 218
ABSTRACT. Miocene to Holocene volcanic rocks of Chimborazo and associated volcanoes in the Western Cordillera of Ecuador range in composition from basaltic andesite to rhyolite. They were erupted through Cretaceous accretionary mafic basement. Three calk...
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