Abstract Volcanic-hosted massive sulfide (VHMS) deposits, the ancient analogues of “black smoker” deposits that currently form on seafloor, are products complex mineral systems involving interaction seawater with underlying volcanic pile and associated magmatic intrusions. Light stable isotopes, particularly those oxygen, hydrogen sulfur, have had a strong influence in determining sources ore f...

Quantitative determination of the mineralogical composition of hydrothermally altered rocks was performed by means of the Rietveld method using X-ray powder-diffraction data. Initially, experiments were carried out to minimize systematic errors arising from preferred orientation of particles as well as micro-absorption. The precision of the proposed method was tested by independent replicate sa...

Abstract The South Banda back-arc basin is a morphotectonic environment that part of the Basin, characterized by flat morphology with depths ranging from 5000m to 6000m. purpose this paper analyze and relate morphometric aspects Quaternary seabed sediment deposits deposited in an active tectonic Sea area, including information on type its distribution as well relation volcanic hosted-massive su...

The Bukit Botol and Ketaya deposits are two examples of volcanic-hosted massive sulphide (VHMS) that occur in the Tasik Chini area, Central Belt Peninsular Malaysia. mineralisation is divided into subzones distinguished by spatial, mineralogical, textural characteristics. primary minerals include pyrite, chalcopyrite, sphalerite, galena, with lesser amounts Sn- Ag-bearing minerals, Au. However,...

Copper and associated gold mineralization in the Mundiyawas-Khera area of western India is hosted by Proterozoic felsic volcanic rocks rhyo-dacite composition. Signatures hydrothermal alteration represented sericite, epidote, scapolite carbonates are well observed around ore zone. The with gently to flat sloping REE pattern, variable negative Eu anomaly, intermediate abundances HFSE moderate lo...

The trace element contents on the surface originated from mineralization would depend to the thickness of the calcrete layer above the ore deposit on the surface. A very thick layer of calcrete may not allow for much dispersion of the elements of interest in the surface. These elements may be concentrated in non-magnetic and magnetic part of calcrete. Based on the current research, mineralogica...