Buscar
Mostrando ítems 1-10 de 2716
Lithium concentrations and isotope signatures of Palaeozoic basement rocks and Cenozoic volcanic rocks from the Central Andean arc and back-arc
(Springer, 2019-08)
We investigate the Li isotope composition and the Li concentrations of metamorphic and sedimentary rocks of the Palaeozoic (Pz) basement in the Central Andes and follow the trace of the Li in the Cenozoic volcanic rocks ...
Gamma-ray spectrometry signature of paraná volcanic rocks: Preliminary results
(2014-01-01)
The Paraná volcanic rocks (Serra Geral Formation) are characterized by four different types of rocks. The basalts are the most common, and display an integranular texture and dark gray to black color, in massive outcrops. ...
VOLCANIC AND VOLCANICLASTIC FEATURES IN ARCHEAN ROCKS AND THEIR TECTONIC ENVIRONMENTS, RIO DAS VELHAS GREENSTONE BELT, QUADRILÁTERO FERRÍFERO, MG – BRAZILVOLCANIC AND VOLCANICLASTIC FEATURES IN ARCHEAN ROCKS AND THEIR TECTONIC ENVIRONMENTS, RIO DAS VELHAS GREENSTONE BELT, QUADRILÁTERO FERRÍFERO, MG - BRAZIL
(Sociedade Brasileira de Geologia, 2017)
Ages and geochemistry of Mesozoic-Eocene back-arc volcanic rocks in the Aysén region of the Patagonian Andes, Chile
(Servicio Nacional de Geología y Minería (SERNAGEOMIN), 2001)
Sr and Nd isotopic geochemistry of the early ultramafic-mafic rocks of the Mako bimodal volcanic belt of the Kedougou-Kenieba inlier (Senegal)
(SPRINGER HEIDELBERG, 2010)
The Mako bimodal volcanic belt of the Kedougou-Kenieba inlier is composed of volcanic basalts and peridotites interbedded by quartzites and limestones intruded by different generations of granitoids. The early volcanic ...
A comparison of different indirect techniques to evaluate volcanic intact rock strength
(Springer, 2009)
The efficiency of different methods that are used to evaluate volcanic intact rock strength is compared that includes Schmidt hammers, point load tests and uniaxial compression tests. The Schmidt hammer records the rebound ...