The Qulong porphyry copper and molybdenum deposit is located at the southwest margin of the Lhasa Terrane and in the eastern region of the Gangdese magmatic belt. It represents China’s largest porphyry copper system, with ∼2200 million tonnes of ore comprising 0.5 % Cu and 0.03 % Mo. The mineralization is associated with Miocene granodiorite, monzogranite and quartz-diorite units, which intrude...

Abstract Granitoids with diverse composition and tectonic settings provide important tools for exploring crustal evolution regional geodynamic history. Here we present an integrated study using petrological, mineralogical, zircon U-Pb geochronological, whole-rock geochemical, isotopic data on the Late Triassic Daocheng batholith in Yidun Terrane a view to understanding petrogenesis of compositi...

Field observations from Gonto La (southern Tibet), a pass through the high Himalaya, reveal a continuous, planar, ~l&N-dipping detachment horizon (the Gonto La detachment). The detachment juxtaposes Tethyan dark slates over a footwall of extensive leucogranite of the Khula Kangri pluton, intruded into an injection complex layer regarded as an early Southern Tibet Detachment System (STDS) horizo...

Understanding of the mechanism between magma sources and metallogeny is still vague. As an important gold molybdenum producing area, Chifeng–Chaoyang district, located at northern margin North China Craton (NCC), a key place for this issue. New geochemical data relating to Taijiying gold-deposit-related granites are presented. These data, coupled with previous studies, used explore relationship...

introduction the investigated area is situated in the south west of the khorasan razavi province along the north west of the lut block. different types of metal ore bodies along with non-metal deposits have already been documented in the lut block (karimpour et al., 2008). most of the study area is covered with granitoid rocks. metamorphic rocks with unknown age are present in the north of the ...

The Puy-les-Vignes W deposit, located in the northwestern French Massif Central (FMC), is a rare occurrence of wolframite-mineralized hydrothermal breccia pipe hosted high-grade metamorphic gneisses. We present an integrated study this deposit aiming to characterize ore-forming system link with Variscan late-orogenic evolution FMC. Based on set representative samples from host rocks and mineral...

the borujerd complex of western iran is composed of intrusions and their surrounding contact aureole, with, pegmatites and quartz veins. pegmatites differ in mineralogy, origin and age, and two groups can be distinguished. the older pegmatites (about 120 ma age) intruded contact metamorphic rocks from the early magmatic stage, while the younger pegmatites (52-70 ma age) formed during the late m...

molybdenite occurs in five forms in the sar cheshmeh porphyry copper deposit, namely, (1)-veinlets with quartz-molybdenite, (2)-veinlets with quartz-molydenite that were filled with pyrite, (3)-veinlets with quartz-molybdenite-pyrite–chalcopyrite, (4)-molybdenite veinlets with very low quartz and (5)-disseminated molybdenite grains. because of their large size, the veinlet-related molybdenite g...