the gas separation performance of commercial ceramic titania and hybrid silica (hybsi®) membranes was assessed using the gas permeation and permporometry methods. results indicated that the hybsi® membranes have a hybrid surface containing regions covered by a polymeric matrix and others with inorganic pores. these membranes have high h2 selectivity, which increases significantly with temperatu...

Thermochronological methods were applied to the Higher Himalayan Crystalline (HHC) nappe and underlying Lesser Sequences (LHS) elucidate denudation process for middle- upper-crust of eastern Nepal over millions years. inverse modeling was undertaken new results fission-track (FT) age FT length data zircon apatite in order reconstruct time-temperature (t-T) paths temperature range 60–350°C. Eigh...

Whole-rock geochemical data and compositional balance analysis (CoBA), combined with a magnetic susceptibility model obtained from high-precision survey, are useful exploration tools in the Jiama porphyry–skarn deposit, southern Tibet, China. In this paper, three innovative aspects of described that have assisted deposit: an improved geological understanding thrust–nappe structure, hydrothermal...

Abstract New whole-rock geochemical and detrital zircon U–Pb Lu–Hf data of metasedimentary sequences the Silvretta Nappe, Orobic Alps, Strona-Ceneri Zone, Gotthard Massif Venediger Nappe are presented. These units seem to share a common early middle Paleozoic geological record, which has alternatively been interpreted as result intraplate or orogenic processes. Detrital mainly indicate late Edi...