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2.203  Articles
1 of 221 pages  |  10  records  |  more records»
This article discusses the stages of crystallization of the Eocene trachybasalt-tra- chyandesitebasalt-phonolith formation of the Talysh zone. Determination of the composi- tion of the primary magma, evolution and melting fraction of the initial melt of t... see more

Permian to Triassic igneous rocks cropping out in the Coastal and Frontal cordilleras in northern Chile between 28º00’S and 30º15’S have long been interpreted to represent products of magmatism related to an extensional tectonic setting, either as the res... see more

Internal tectonic structure of the Ukrainian Shield is currently seen as an association of megablocks (megastructures) divided by abyssal fractures. Within this region, six megablocks (megastructures) are differentiated: Volynski, Dnistrovo-Buzki, Rosynsk... see more

Airborne geophysical data were used to analyze the complex structures of eastern Thailand. For visual interpretation, the magnetic data were enhanced by the analytical signal, and we used reduction to the pole (RTP) and vertical derivative (VD) grid metho... see more

The metamorphic complex of Sierra de Los Llanos is composed of low- to high-grade metasedimentary rocks, namely phyllites, schists, gneisses and migmatites that out crop like large septa within lower Ordovician magmatic units. Cornubianite associated with... see more

RESUMEN. El Complejo Piedra Santa es una unidad metamorfica de baja a intermedia gradiente P/T que forma parte del basamento premesozoico del area norpatagonica occidental, en la provincia de Neuquen (Argentina). Consiste en una secuencia derivada princip... see more

In the current study, a direct method was used to synthesize a new series of charge-transfer complex compounds. Reaction of different quinones with 3,4-selenadiazo benzophenone in a 1:1 mole ratio by acetonitrile gave a unique charge-transfer complex comp... see more

New transition metal complexes of cobalt(II), nickel(II), copper(II), palladium(II), cadmium(II), and platinum(IV) with bidentate ligand 4-amino-5-(3,4,5-trimethoxyphenyl)-4H-1,2,4-triazole-3-thiol were synthesized and characterized by microelemental anal... see more

Cobalt(II), nickel(II), and copper(II) complexes containing bidentate ligands )5-(4-nitrophenyl)-4-((4-phenoxybenzylidene)amino)-4H-1,2,4-triazole-3-thiol) could be synthesized by the condensation reaction between 1,2,4-triazole derivative and p-phenoxy b... see more

1 of 221 pages  |  10  records  |  more records»