نتایج جستجو برای: dacitic
تعداد نتایج: 177 فیلتر نتایج به سال:
The tectonic settings for the Urumieh-Dokhtar volcanic-plutonic belt provided by different reaserchers including active continental margin rift and post collisional settings. Geochemical and tectonic studies indicate that this belt belongs to the active continental margin. Basaltic andesite, andesite, trachy andesite, trachy dacite and dacitic rocks in NE Naragh, of the Urumieh-Dokhtar magmatic...
The permeability structure of the Sumikawa geothermal field in northern Japan has been the subject of an extensive pressure-transient testing investigation since 1986. In this paper, various pertinent data sets are presented and analyzed, including results showing reservoir heterogeneity (i.e. boundary) effects and apparent double porosity behavior. Interference tests between wells SB-3 and SD-...
The composition of Kuh-e- Barandeh volcanic dome is andesite, dacitic andesite and dacite of calc-alkaline affinity. A prominent feature of this dome is the presence of various types of enclaves with different composition, shape and size. Detailed field and laboratory investigation proved that they are of xenolith and autolith types. The xenoliths are of pelitic and basic protoliths. Xenoliths ...
The Svärdsjö Zn-Pb-Cu deposit is situated in the heavily mineralised Bergslagen lithotectonic unit of Fennoscandian shield, south-central Sweden. Intense hydrothermal alteration followed by a strong overprint deformation and metamorphism during Svecokarelian orogeny complicate interpretation local geology. Integration whole-rock lithogeochemical petrographic methods has allowed mainly dacitic v...
The intermediate-sulfidation epithermal Strauss deposit is part of the Drake Goldfield north-eastern NSW, Australia. mineralization gold dominant with minor silver and significant zinc, copper lead. has a combined total resource 2.66 Mt @ 1.5 g/T Au 1.9 Ag. Petrographic analysis shown to be hosted by varying layers dacitic ash flow tuffs cross-cutting lamprophyre dyke though previous authors cl...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید