Magmatic processes have usually been identified and evaluated using qualitative or semiquantitative geochemical or isotopic tools based on a restricted number of variables. However, a more complete and quantitative view could be reached applying multivariate analysis, mass balance techniques, and statistical tests. As an example, in this work a statistical and quantitative scheme is applied to ...

introduction hornblende-bearing gabbroic rocks are quite common in subduction-related magmatic suites and considered to represent magmatic differentiation process in arc magmas (heliker, 1995; hickey-vargas et al., 1995; mandal and ray, 2012). the presence of hornblende as an important mineral phase in gabbroic rocks of subduction zone has been considered either as an early crystallizing minera...

The Ela Mountain area is located at the easternmost point of East Kunlun Orogen, in which voluminous igneous rocks developed Triassic period, and it a good place to investigate tectonic evolution Paleo-Tethys Ocean. In this study, petrological, geochemical, zircon U-Pb geochronology Hf isotope studies were carried out on volcanic area. Dacite (239.3 ± 1.4 Ma) exhibits calc-alkaline I-type chara...

Introduction: We have carried out detailed petrographical-mineralogical description of three Yamato nakhlites (Y000593, Y000749 and Y000802). These three are paired. We clarified chemical compositional differences between the Yamato nakhlites and other nakhlites, and subclassified the Yamato nakhlites as an intermediate type between NWA817 and others (Nakhla, Governador Valadares and Lafayette)...

(LL3.1), BISHUNPUR (LL3.1) AND MEZÖ-MADARAS (L3.7): IMPLICATIONS FOR CHONDRULE FORMATION. A. Engler, G. Kurat and P. J. Sylvester, Department of Mineralogy and Petrology, University of Graz, Universitätsplatz 2, A-8010 Graz, Austria ([email protected]), Naturhistorisches Museum, Postfach 417, A-1014 Vienna, Austria, Department of Earth Science, Memorial University of Newfoundland, St. Jo...