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Fernando Enrique Lopez,Cintia Kaufmann
Pág. 201 - 216
New data and a biostratigraphic review on Silurian graptolites of the La Chilca Formation are presented. Silurian retiolitids and monoserial graptolites are described for the first time in the lower layers of the Salto Macho Member at the Poblete Norte s...
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John A. Luczaj, Amber Konrad, Mark Norfleet and Andrew Schauer
Ground water contamination from septic systems and the application of dairy cattle manure has been a long-standing problem in rural northeastern Wisconsin, especially in areas with thin soils over karstified Silurian dolostone bedrock, where as many as 6...
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Yanan Miao, Pengfei Wang, Xin Li, Haiping Huang, Can Jin and Wei Gao
Shale gas production is obviously higher within the Silurian Longmaxi Formation than that of the Cambrian Niutitang Formation according to the drilling test results in the northwest Hunan area. To clarify the reasons behind this variation, core samples f...
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Michael A. Pointon, Helen Smyth, Jenny E. Omma, Andrew C. Morton, Simon Schneider, Peter Hülse, Stephen J. Rippington, Berta Lopez-Mir, Quentin G. Crowley, Ian Millar, Martin J. Whitehouse, Dirk Frei, Robert A. Scott and Michael J. Flowerdew
A multi-proxy provenance study of Late Carboniferous to Middle Jurassic sandstones from the eastern Sverdrup Basin was undertaken employing optical petrography and heavy mineral analysis, chemical analysis of apatite, garnet and rutile grains, as well as...
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Florencia Moreno,Ana Mestre,Susana Heredia
Pág. 302 - 317
The calcareous microfossils present in the Ordovician and Silurian carbonate successions around the world are limited to few studies and their biological affinities and environmental preferences remain indefinite. In the carbonate Ordovician San Juan For...
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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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Samanta Serra-Varela,Pablo D. González,Raúl E. Giacosa,Nemesio Heredia,David Pedreira,Fidel Martín-González,Ana María Sato
Pág. 102 - 130
In San Martín de los Andes area (Argentinian Patagonia) the Palaeozoic basement consists of metamorphic and plutonic rocks. The metamorphic rocks include strongly deformed schists, gneisses and migmatites. Their geochemical and petrographic characteristi...
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Gustavo G. Voldman,Juan L. Alonso,Luis P. Fernández,Gladys Ortega,Guillermo L. Albanesi,Aldo L. Banchig,Raúl Cardó
Pág. 399 - 409
The Rinconada Formation is a mélange that crops out in the eastern margin of the Argentine Precordillera, an exotic terrane accreted to Gondwana in Ordovician times. Its gravity-driven deposits have been studied by means of conodont and graptolite biostr...
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Yusong Wu, Xiao Li, Jianming He and Bo Zheng
With the exploitation of shale gas booming all over the world, more and more studies are focused on the core technology, hydraulic fracturing, to improve commercial exploitation. Shale gas resources in China are enormous. In this research, a series of te...
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Victor Maksaev,Javier Arancibia,Francisco Munizaga,Colombo Tassinari
Pág. 285 - 312
U-Pb detrital-zircon geochronology of two discrete outcrops of mica schists of the western border of the Domeyko Cordillera in the Region of Atacama, northern Chile, indicates that the maximum age of sedimentation of their protolith corresponds to the La...
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