|
|
|
|
|
Annie Vera Hunnestad, Anne Ilse Maria Vogel, Maria Guadalupe Digernes, Murat Van Ardelan and Martin Frank Hohmann-Marriott
Cyanobacteria have high iron requirements due to iron-rich photosynthetic machineries. Despite the high concentrations of iron in the Earth?s crust, iron is limiting in many marine environments due to iron?s low solubility. Oxic conditions leave a large ...
ver más
|
|
|
|
|
|
|
|
|
|
|
Larry D. Brown and Doyeon Kim
Crustal seismic reflection profiling has revealed the presence of extensive, coherent reflections with anomalously high amplitudes in the crystalline crust at a number of locations around the world. In areas of active tectonic activity, these seismic ?br...
ver más
|
|
|
|
|
|
|
|
|
|
|
Henrik Drake, Magnus Ivarsson, Mikael Tillberg, Martin J. Whitehouse and Ellen Kooijman
Recent studies reveal that organisms from all three domains of life—Archaea, Bacteria, and even Eukarya—can thrive under energy-poor, dark, and anoxic conditions at large depths in the fractured crystalline continental crust. There is a need ...
ver más
|
|
|
|
|
|
|
|
|
|
|
O. Adrian Pfiffner
This paper gives an overview of the large-scale tectonic styles encountered in orogens worldwide. Thin-skinned and thick-skinned tectonics represent two end member styles recognized in mountain ranges. Both styles are encountered in former passive margin...
ver más
|
|
|
|
|
|
|
|
|
|
|
Dickson Cunningham
The Central Asian Orogenic Belt (CAOB) records multiple Phanerozoic tectonic events involving consolidation of disparate terranes and cratonic blocks and subsequent reactivation of Eurasia?s continental interior. The final amalgamation of the CAOB terran...
ver más
|
|
|
|
|
|
|
|
|
|
|
Ruth Gbadeyan and George R. Dix
The Upper Ordovician (Edenian) Lindsay Formation of the Ottawa Embayment represents the final stage of carbonate platform development in the Taconic foreland periphery inboard of the northern Appalachian orogen. The succession overlies a narrow (~60 km) ...
ver más
|
|
|
|
|
|
|
|
|
|
|
Ricardo Varela,Miguel A.S. Basei,Carlos A. Cingolani,Oswaldo Siga Jr.,Claudia R. Passarelli
Isotopic data are presented for rocks of the Andean crystalline basement at 40°S, in Neuquén and Río Negro provinces. The methods used were U-Pb in zircon (crystallization ages of plutonic rocks), K-Ar in micas and U-Pb in titanite (metamorphism and cool...
ver más
|
|
|
|
|
|
|
|
|
|
|
Ramon Moscoso,Constantino Mpodozis
Pág. 151 - 166
RESUMEN. En Chile, entre los 28° y 31°S, la cadena andina esta formada por dos provincias tectonicas con estilos estructurales distintos pero complementarios. La Cordillera Frontal (CF) esta dominada por la deformacion de basamento ('thick skinned'), ca...
ver más
|
|
|
|
|
|