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Kevin C. Hill, Gareth T. Cooper, Agnes Pokondepa, Peter Essy, Thiwaporn Phonsit and Mark Haydon
The Porgera Transfer Zone (PTZ) is a major crustal and probably lithospheric structure across Papua New Guinea recording >50 km offset of ophiolites and very different patterns of geology and topography on either side. In the Late Jurassic, the PTZ proba...
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Xu Lin, Marc Jolivet, Jing Liu-Zeng, Feng Cheng, Zhonghai Wu, Yuntao Tian, Lingling Li and Jixin Chen
Understanding the formation of the North Qilian Shan in the NE Tibetan Plateau provides insights into the growth mechanisms of the northern region of the plateau across time. Detrital zircon fission-track (ZFT) analyses of river sediments can provide a c...
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Enrico Capezzuoli, Amalia Spina, Andrea Brogi, Domenico Liotta, Gabriella Bagnoli, Martina Zucchi, Giancarlo Molli and Renzo Regoli
The Pre-Mesozoic units exposed in the inner Northern Apennines mostly consist of Pennsylvanian-Permian successions unconformably deposited on a continental crust consolidated at the end of the Variscan orogenic cycle (Silurian-Carboniferous). In the inne...
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Christian Creixell,Javier Fuentes,Hessel Bierma,Esteban Salazar
Pág. 469 - 507
Cretaceous porphyry copper deposits of northern Chile (28º-29º30? S) are genetically related with dacitic to dioritic porphyries and they represent a still poorly-explored target for Cu resources. The porphyries correspond to stocks distributed into two ...
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María Jose Palacios,Hans Niemeyer
Pág. 561 - 570
Cataclastic bands from the eastern border of Tambillo Pluton are studied. Two band systems are observed: one northeast and the other northwest in strike. The northeast system is the most conspicuous and its kinematic analysis shows dextral displacement. ...
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Joshua P. Taylor, Laura E. Webb, Cari L. Johnson and Matthew J. Heumann
The Central Asian Orogenic Belt, or Altaids, is an amalgamation of volcanic arcs and microcontinent blocks that records a complex late Precambrian?Mesozoic accretionary history. Although microcontinents cored by Precambrian basement are proposed to play ...
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Peter R. Johnson, Galen P. Halverson, Timothy M. Kusky, Robert J. Stern and Victoria Pease
The Arabian-Nubian Shield (ANS) includes Middle Cryogenian-Ediacaran (790?560 Ma) sedimentary and volcanic terrestrial and shallow-marine successions unconformable on juvenile Cryogenian crust. The oldest were deposited after 780?760 Ma shearing and sutu...
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Pablo J. Torres Carbonell,Norberto Malumian,Eduardo B. Olivero
Pág. 197 - 235
The orogenic margin of the Austral-Malvinas foreland basin system is formed by a marine succession exposed at northern Península Mitre, composed of 550 m of the late Paleocene-early Eocene foredeep, and more than 2,900 m of the late middle Eocene-?Miocen...
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Hans Niemeyer,Raul Venegas,Carlos R. Gonzalez,Florencio G. Acenolaza
Pág. 123 - 143
RESUMEN. Los terrenos paleozoicos del Salar de Navidad, conocidos como 'Estratos del Salar de Navidad', se han subdividido en dos formaciones de distintas caracteristicas litologicas, edad, ambiente deposicional y significado tectonico: Formacion Sierra ...
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Gustavo Gonzalez Bonorino,Felix Gonzalez Bonorino
Pág. 97 - 107
Las rocas igneas y sedimentarias del Proterozoico superior a Silurico, y sus equivalentes metamorficos, aflorantes en el oeste de Argentina y en el este de Chile entre 28° y 34°S, son aqui interpretadas como representantes de un margen continental de tip...
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