The objects of study are the Agardag and Ulor ultramafic massifs, which part South Tuva ophiolite belt. aim this work is to petrographic, petrochemical geochemical features harzburgites dunites studied massifs. As a result petrographic study, main types rocks that make up massifs were identified. Harzburgites predominate in massif, while more common massif. In often plastically deformed by synt...

The compositions of resistant indicator minerals are diagnostic their original host environment. They may be used to fingerprint different types mineral deposit as well vector towards them. We have characterised the composition apatite and Fe–Ti oxides in variably mineralised mafic–ultramafic rock units Montagnais Sill Complex Labrador Trough assess suitability for vectoring magmatic sulphide o...

Introduction Since human settlement of New Caledonia, the natural disturbance regime has been altered, leading to a number of changes in landscape composition and structure. In particular, the vegetation on ultramafic substrate has been greatly affected by fire and other human disturbances associated with logging and mineral exploration. It is therefore pertinent to ask how the landscape may re...

Introduction: The petrogenesis of the low-Ti lunar ultramafic glasses is critical to the understanding of volcanic processes on the Moon. Popular petrologic models developed to explain the formation of these glasses involve high pressure melting of a variety of sources, including primordial, garnet bearing, lunar mantle and depleted lunar magma ocean (LMO) cumu-lates [1,2,3,4]. Following the hi...

The solubility of Pt in CO-CO2 fluid was studied experimentally at P = 50–200 MPa and T 950 °C. A mixture MgC2O4 MgCO3 used as a source the fluid. Upon reaction capsule walls fluid, carbonyl platinum is formed. use high-temperature quartz ceramics trap avoids effect mechanical contamination with from eroded walls. total content porous traps measured by Electrothermal Atomic Absorption (ET-AAS) ...