Indonesia is a country that has several world-class copper-gold deposits, particularly in eastern Sunda arc. The Hu’u complex prospects the surface as lithocap of extensive epithermal style alteration, but some were detected associated with porphyry beneath surface. study focuses on hydrothermal breccia cement factor influencing system district. methods used mineralogical analysis petrography a...

Alkali-feldspar occurs in the Crowsnest Volcanics as phenocrysts and as free euhedra in the pyroclastics and their re-worked derivatives. Composition varies from 6O/p to 95/6 Or-molecule and 2V f.rom 50'[-f (010)] to 35'[ll(010)l' Individual crystals show a range of 2Zvalues, but only rarely contain more than one K-rich phase. Optics indicate that most of the K-feldspar is intermediate between ...

Introduction: The very high temperatures that have been reported for lavas on Io [e.g., 1-4] have proven to be difficult to explain [5,6]. Specifically, the estimates of lava temperatures ≥1600 °C require that the interior of Io either (1) have an extremely unusual chemistry or (2) be almost completely molten. Neither of these possibilities fits within our current understanding of the evolution...

in the present study, the q factor is obtained for the central alborz in iran using the lg coda method. the energy of a seismic wave decays while passing through a ‘real’ medium such as the earth which is not completely elastic. the decay in energy is due to non-elastic phenomena and is called intrinsic attenuation and is characterized with the q parameter, the large values of which represent s...

The Macelj formation is an informal Eggenburgian-early Ottnangian lithostratigraphic unit that established in the area of Hrvatsko Zagorje Basin, which represented a marginal zone Early Miocene Central Paratethys Sea. Modern studies, as part Geologic Map Republic Croatia 1:50 000 project, yielded new data improves knowledge depositional and stratigraphic characteristics formation. sedimentologi...

Interferometric Synthetic Aperture Radar (InSAR) capability to detect slow deformation over terrain areas is limited by temporal decorrelation, geometric decorrelation and atmospheric artefacts. Multitemporal InSAR methods such as Persistent Scatterer (PS-InSAR) and Small Baseline Subset (SBAS) have been developed to deal with various aspects of decorrelation and atmospheric problems affecting ...