This study was carried out on granitic rocks from the Biga Peninsula in order to investigate petrographic, and mineralogical properties comparison with mechanical strength properties. conducted four different locations where outcrop north south Peninsula: Lapseki (Şevketiye granite), Ezine (Kestanbol Bayramiç (Yassıbağ Edremit (Eybek granite). Field observations detailed petrographic studies of...

The vein-type Chomalu polymetallic epithermal deposit, located in the Tarom-Hashtjin Metallogenic Province (THMP), western Alborz, formed two separate mineralized zones controlled by fault within andesite and olivine basalt host rocks. deposit occurs adjacent to Varmarziar quartz monzonite, monzodiorite, monzosyenite intrusions. Ore mineralization consists of three stages; (i) an early stage do...

To study the characteristics and genetic constraints on alkalic-type epithermal Au mineralisation, here we use example of Tuvatu Au-Ag deposit in Fiji, with an emphasis detailed, quantitative mineralogy. mineralisation is hosted a weakly altered potassic monzonite parallel sided-veins K-feldspar, biotite, sericite, calcite, quartz, epidote-bearing propylitic or sericite-rich selvages. Petrograp...

The stability of tunnel site depends upon the deformation behaviors surrounding rocks, including joint density, mineral composition, micro cracks, and grain boundaries. aim this study was to analyze mechanical properties Besham Complex in Northern Pakistan terms petrography analysis. complex is prone as it bounded by Main Mantle Thrust (MMT) north, Thakot fault (Tf) east, Swat block west. In ar...

We use the ultrasonic transmission method to measure P-, SH-, and SV-wave velocities for Chelmsford Granite, Chicopee Shale, and Berea Sandstone in different directions up to 1000 bars confining pressure. The velocity measurements indicate that these three rocks are elastically anisotropic. The stiffness constants, dynamic Young's moduli, dynamic Poisson's ratios, and dynamic bulk moduli of the...

the study area is located south of ghonabad in eastern iran. this area is situated between two major faults, darouneh to the north and dashtbyaz to the south. the movements of these faults cased major dislocation of this block. najmabad granodiorite to granite batholith is elongated trending east-west 2×8 km2. mineralization is associated with granite and monzonite. alteration zones are: propyl...

Abstract. The continuum of behavior that emerges during fracture network development in crystalline rock may be categorized into three end-member modes: nucleation, isolated propagation, and coalescence. These different modes growth produce networks with distinctive geometric attributes, such as clustering connectivity, exert important controls on permeability the extent fluid–rock interactions...

The Lower Yangtze River Belt (LYRB) is a well-known and important base area with regard to Cu polymetallic resources in China. Large deposits the LYRB are strongly associated Cretaceous adakitic rocks. However, petrogenesis of Early adakites temporal–genetic relationship mineralization still disputable. Dongguashan (DGS) deposit Tongling ore cluster one largest LYRB. DGS intrusion mainly compri...

Adakites or adakitic rocks usually show special geochemical signatures and are petrological probes to reveal the tectono–magmatic evolutionary history of paleo–orogenic belts. Here, we present a comprehensive study on zircon U–Pb geochronology, whole-rock geochemistry, Lu-Hf isotopes Mogetong pluton in East Kunlun orogen, Northern Tibetan Plateau, constrain its petrogenesis tectonic setting, th...