نتایج جستجو برای: mineral paragenesis
تعداد نتایج: 66715 فیلتر نتایج به سال:
The Deh-Salm Metamorphic Complex (DMC) is composed of metapelite, metabasite, metaperidotite, and calc-silicate rocks and is one of the few outcrops of the Lut block’s basement which emerged near to the Sistan suture zone. In the eastern part of the Deh-Salm metamorphic complex, the calc-silicate and marble appeared in the form of elongated tectonic lenses that have been metamorphosed in simila...
Further mosaic-like data were recorded on the mineral occurrences of Carpathian–Pannonian region in this fifth member series arranged by countries and localities. Each “mosaic” contains a concise description, mainly based XRPD, SEM-EDX EPMA measurements description paragenesis. Some minerals are first-time descriptions from entire discussed region, but all newly documented for at least describe...
Halakabad is located about 30 km south of Sabzevar. Basalt, andesite, hornblende andesite and hornblende dacite are the oldest volcanic rocks cropping out in the study area. Monzodiorite, quartz diorite, quartz monzodiorite, quartz monzonite, and hornblende quartz monzodiorite intruded the volcanic rocks. Application of component analysis is one of the methods that can help to reveal simpler pa...
Bovaki and Aghbolagh tungsten (copper-tin-zinc) ore occurrences are located 12 and 14 km northwest of Azna respectively. The region is located in Sanandaj-Sirjan structural zone of Iran, at the complex deformation sub-zone. There are alternative comsisty Upper Triassic carbonate, quartzite and meta-volcanic rocks (such as meta-tuff). In this area, tungsten-copper mineralization occurs as strati...
A comparative analysis of typomorphic features gold placers and indigenous sources was carried out for the Glukharinsky ore-placer node (the Nadezhda deposit Glukharinskoye, Tyomnoye, Tyi-Jurye ore occurrences). correlation between fineness placer native composition relic minerals preserved inside particles obtained first time. This made it possible to establish mineral parageneses from potenti...
The Monte Santo Alkaline Intrusive Suite (MSAIS) is an association syenite foid, nepheline syenite and syenite. The MSAIS rocks are intruded in metapelites of the Rio do Coco meta-volcanic-sedimentary Sequence and are abundant pegmathoid veins cutting all of them. The mineral paragenesis is represented by aegirina, arfvedsonite, albite and nepheline, crystallized during the initial phase of cry...
The Shuangwang gold deposit, with more than 70 tons of Au, is located in the Fengxian-Taibai ore concentration area Qinling Orogen central China, hosted a Northwest-trending breccia belt. Fragments body are cemented by ankerite, albite, quartz, calcite, and pyrite. Four metallogenic stages identified mineral paragenesis: quartz-albite, ankerite-pyrite-albite, pyrite-quartz-calcite, fluorite-anh...
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