Abstract The low-grade metamorphic early Paleozoic basement of the Veitsch area presents a wide variety sedimentary facies domains. first domain consists thick metadacites Middle Ordovician age (Blasseneck Porphyroid), overlain by fine-grained metaclastics Rad Formation (Late to Silurian) and Devonian limestones calcitic marbles (Kaiserstein Kaskögerl Formation, respectively). Rhyolitic dacitic...

Mudstone samples from the Moreno (Upper Cretaceous-Paleocene) and Kreyenhagen (Eocene) formations are analysed using X-ray diffraction (XRD) fluorescence (XRF) to determine their mineralogy. Smectite (Reichweite R0) is predominant phyllosilicate present, 48% 71.7% bulk rock mineralogy (excluding carbonate cemented highly bio siliceous samples) 70% 98% of <2 μm clay fraction. Opal CT less so ...

A gravimetric study was performed at the Cerro Machin volcano (4° 29’ N, 75° 22’ W), Tolima Department, Colombia, to obtain a density distribution of volcanic edifice and its basement. This divided into three main sections. The first section consisted measurements on volcano, which were with Scintrex Autograv CG-5 gravimeter. In second section, complete Bouguer anomaly obtained by applying corr...

The Shand Cu-Mo deposit is located in the Orkhon-Selenge depression, Northern Mongolia. It lies near Erdenetiin Ovoo porphyry deposit, which together define one of Mongolian’s most economically significant metallogenic belts. In (Au?) several ore related breccia types are associated with porphyritic granodiorite intrusions, and they contain pre-, synand post-mineralized stocks, magmatic-hydroth...

Abstract Tandem in situ and isotope dilution U-Pb analysis of zircons from pyroclastic volcanic rocks both glacial non-glacial sedimentary strata the Pocatello Formation (Idaho, northwestern USA) provides new age constraints on Cryogenian glaciation North American Cordillera. Two dacitic tuffs sampled within glacigenic lower diamictite interval Scout Mountain Member yield high-precision chemica...

Relevant data on the structure and composition of crystalline basement in Central México can be found by means plutonic, metamorphic, sedimentary xenoliths transported Neogene Quaternary volcanic eruptions within Trans-Mexican Volcanic Belt (TMVB). We present detailed major oxide trace elements concentrations, isotopic analysis thermobarometric estimations for a granitic xenolith an Early Mioce...