Buscar
Mostrando ítems 61-70 de 3438
Trace metals in pyrite and marcasite from the Agua Rica porphyry-high sulfidation epithermal deposit, Catamarca, Argentina: Textural features and metal zoning at the porphyry to epithermal transition
(Elsevier, 2015-04)
Agua Rica is a world-class Cu (Mo–Au) deposit located in Catamarca, Argentina, in which the porphyry and high
sulfidation epithermal stages are juxtaposed due to the telescoping of the mineralizing system. Pyrite is the ...
Chronostratigraphy and significance of the Rugosa group (Cruziana, trace fossil) in the Ordovician strata of the South American Central Andean BasinLa chronostratigraphie et l’importance du groupe Rugosa (ichnofossiles) dans l’Ordovicien du bassin des Andes centrales d’Amérique du Sud
(Elsevier France-editions Scientifiques Medicales Elsevier, 2015-02)
Although most trace fossils display long temporal ranges, certain forms as the Paleozoic mostly trilobite trace Cruziana have particular biostratigraphic significance. The evolution and replacement of trilobite families ...
Tracing the origin and geographic distribution of an ancestral form of the modern human Y chromosome
(Sociedad de Biología de Chile, 2001)
On trace forms on a class of commutative algebras satisfying an identity of degree fourALGEBRA COLLOQUIUMALGEBR COLLOQ
(WORLD SCIENTIFIC PUBL CO PTE LTD, 2016)
Palaeonvironmental and palaeoecological significance of flamingo-like footprints in shallow-lacustrine rocks: An example from the Oligocene-Miocene Vinchina Formation, Argentina
(Elsevier Science, 2012-01)
This article describes the lacustrine trace-fossil assemblage of the Late Oligocene-Early Miocene Vinchina Formation of northwest Argentina. The thick (> 5000. m) continental succession of the formation is essentially ...
Balanço ambiental de elementos-traço na sinterização
(Universidade Federal de Minas GeraisUFMG, 2015-12-18)
Introduction: Environmental legislation is becoming more restrictive in several industrial sectors, especially in the steel industry, which is well known for its large pollution potential. With the recent growth of interest ...
REINTERPRETATION OF THE FIRST STEP OF THE SEQUENTIAL EXTRACTION PROPOSED BY THE SMT
(Sociedad Chilena de Química, 2009)
Coupling Terrain and Building Database Information for Ray-Tracing Applications
(2003)
In this paper a methodology for the combination and integration into a single data base of terrain and building data is presented -- This study is justified if ray-tracing techniques are to be used in propagation and channel ...