نتایج جستجو برای: porphyry cu
تعداد نتایج: 62131 فیلتر نتایج به سال:
The study area is situated within the Lut Block 50 Km northeast of Ferdows. The oldest exposed rocks are Cretaceous limestone. Kerman conglomerate cover the limestone. Dacite-rhyodacite lava and pyroclastic rocks erupted over Kerman conglomerate. Volcanic activities took place at different time in Tertiary. The composition ranges between trachyandesite, andesite, andesite-basalt and rhyolitic ...
Dahaneh Qaleh exploration prospect is located about 300 km south west of Mashhad and is belong to the Taknar structural unit. This unit is separated from Sabzevar structural unit with Taknar fault in the north and Darouneh fault in the south, is the separator of this unite from Lut structural unit. Before the operation field, ASTER sensor data processing introduces Hematitic, Chloritic, Epidoti...
Base metal mineralization at the Baal Gammon and Isabel deposits of Herberton Mineral Field (HMF) is hosted in metamorphosed greywacke beds Hodgkinson Formation, which were intruded by granite, porphyry dykes overlain volcanic rocks Kennedy Igneous Association during Carboniferous Permian. The tin deposit a silicified, chlorite-altered, quartz-feldspar (UNA Porphyry). polymetallic veins hosting...
Magmatic zircon tends to present characteristic trends in trace element compositions response magma petrogenesis and metallogenesis, such that may provide a window into melt evolution not accessible by whole rock chemistry. The Yangla large Cu deposit is located the central part of Jinshajiang Suture Zone, southwest China, constrained between Faults. In this study, elements hafnium isotopic zir...
Mechanical cells have seen an exponential increase in size over the past 60 years. However, a possible limitation due to carrying capacity constraints has been raised. Taking Cu porphyry case, cell sizing exercise is used show that can be tested using available techniques. A range of conditions explored suggest continued above current maximum size, ca. 600 m3, does not seem warranted.
Abstract Most known porphyry Cu deposits formed in the Phanerozoic and are exclusively associated with moderately oxidized, sulfur-rich, hydrous arc-related magmas derived from partial melting of asthenospheric mantle metasomatized by slab-derived fluids. Yet, whether similar metallogenic processes also operated Precambrian remains obscure. Here we address issue investigating origin, f O 2 , S ...
Both Sangan and Tannurjeh magnetite deposits are Iron-oxides type. Geochemistry and petrography of source rocks at Tannurjeh and Sangan were studied in detail. The source rocks at Sangan are compused of quartz hornblende alkali syenite porphyry and quartz biotite-hornblende alkali syenite porphyry ; while The source rocks at Tannurjeh varies between hornblende quartz diorite porphyry and h...
The trace element composition of detrital magnetite grains recovered from six local streams around the Casino high-grade porphyry Cu-Au-Mo deposit, west-central Yukon, is compared with igneous and magmatic-hydrothermal mineralized unmineralized host rocks at deposit. Linear discriminant analysis 12 elements (Mg, Al, Ti, V, Mn, Co, Cr, Ni, Cu, Zn, Ga Ge) plots Ti versus Ni/Cr are used to discrim...
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