Granites have been intensively studied because the formation process is closely connected to crustal evolution and crust-mantle interactions, which contribute to the mechanical weakening of the crust throughout episodes of mountain building (e.g., Hopkinson et al., 2017).However, granites display great diversity, the source of which is …

The recorded uranium mineralization is genetically related to the U content and structural setting of syenogranitic dyke that occurs near alkaline granites, Abu Hamr area, north Eastern Desert of Egypt. The associated abnormal level of radioactivity exhibits maximum equivalent uranium (eU) of 155.6 parts per million (ppm) with an average of …

A-type granites can be further classified into peralkaline and aluminous A-type granites (King et al., 1997).Peralkaline A-type granites contain alkali and sodic mafic …

The post-collisional PCDs in Tibet contain total resources of ~46 million tonnes (Mt) Cu at an average grade of 0.3–0.6 % Cu. They are mainly concentrated in the Gangdese, Yulong, and Ailaoshan–Red River belts, with ages of 30–13, 43–37, and 36–34 Ma, respectively.

In this paper, we present an integrated study of SIMS zircon geochronology and oxygen isotopes, LA-ICP-MS zircon Hf isotopes as well as whole-rock Sm-Nd isotopes, major and trace elements for the S-type granites (ca. 2.07–2.05 Ga) from the Helanshan Complex in the western part of the Khondalite Belt.These new data, combined with …

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More importantly, similar to typical more mafic S-type granites from the Cape Granite Suite (South Africa) and north Queensland (Australia), the high and variable FeO T + MgO contents (2.21–6.64 wt%) are significantly attributed to coupled co-entrainment of peritectic and accessory minerals (e.g., garnet, ilmenite, zircon, and monazite ...

A-type granites can be further classified into peralkaline and aluminous A-type granites (King et al., 1997).Peralkaline A-type granites contain alkali and sodic mafic minerals (e.g., arfvedsonite, aegirine, and riebeckite) and exhibit peralkaline compositions (molar [Na + K]/Al > 1), whereas aluminous A-type granites are typically metaluminous …

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The widespread Mesozoic volcanics in the central Lhasa subterrane have been a subject of debate concerning their genetic mechanisms. Leveraging geochronology, element geochemistry, and Hf isotopes, we have systematically investigated the origin and dynamic mechanisms of the Zenong Group volcanics in the Bengnazangbu and western …

The Southeastern United States contains numerous granites of the type that contain high concentrations of rare earth elements. We are conducting studies of these granites to advance rare earth element (REE) resource identification and assessment by resulting in an improved understanding of the fundamental source rock types, modes …

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Introduction. Water is essential for partial melting of the continental crust (CC) to produce granites 1, 2.There are two dominant mechanisms for water supply in this process: …

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The Um Ara area, in the south Eastern Desert of Egypt contains a number of uranium occurrences related to granitic rocks. U-rich thorite, thorite and zircon are the main primary uranium- and thorium-bearing minerals found in mineralized zones of the Um Ara alkali-feldspar granites; uranophane is the most common secondary uranium mineral. …

Granite glossary term at minerals educational reference guide . Minerals . Complete Information Guide to Rocks, Minerals, & Gemstones . Minerals. Minerals & Varieties. View All Minerals; View by Alphabetical Order ; Varieties and Other Names; Mineral Search; Filter Minerals. Filter by Chemical Group;

Mineral chemistry and geochemical aspects of Gebel Filat granites, South Eastern Desert, Egypt ... analyses and chemical formulae of plagioclase and K-feldspars from Gebel Filat granite and pegmatite Rock type Filat granite Minerals Plagioclase Sample No. 5 SiO2 Al2O3 TiO2 FeOt MnO MgO CaO Na2O K2O 69.32 18.98 0.00 0.01 0.01 …

The Wangjiazhuang granitic pluton is located in the central Zanhuang Domain, the central part of the North China Craton, which is mainly composed of biotite monzogranite with few mafic microgranular enclaves. Biotite is an important ferromagnesian mineral in most of the intermediatefelsic igneous rocks, and its mineral chemistry can …

Project objectives are to compile and examine mineral maps of the known lithium-bearing playas in the U.S., Chile, and Argentina using field and remote sensing data to better understand the mineralogy of these deposits. After mineral assemblages are identified, mineral maps for lithium-rich plays will be compiled using ASTER data.

The Bainaimiao arc was initially formed at ∼520 Ma, and then the Paleo-Asian Ocean continued southward subduction from the early Cambrian to the middle Silurian (∼520–420 Ma), causing the South Bainaimiao Ocean between the Bainaimiao arc and the North China Craton to diminish, which eventually led to the arc accreting into the North …

Extremely light apatite δD values indicate deep-originated water in intracontinental granites and basalts from the North China Craton, probably from a …

Miocene-Oligocene A-type granite intrudes the eastern side of the Red Sea margin within the zone of extension from Jiddah, Saudi Arabia south to Yemen. The …

The Southeastern United States contains numerous granites of the type that contain high concentrations of rare earth elements. We are conducting studies of …

The Southeastern United States contains numerous granites of the type that contain high concentrations of rare earth elements. We are conducting studies of these granites to advance rare earth element (REE) resource identification and assessment by resulting in an improved understanding of the fundamental source rock types, modes …

The granites deriving from muscovite breakdown have low TiO 2 contents (< 0.1%) (Visonà and Lombardo, 2002), being contrast with the high TiO 2 contents (up to 0.68%) of the Jinxi granites. The peritectic minerals produced in muscovite and biotite partial melting are also different (Weinberg and Hasalová, 2015). Garnet is the typical ...

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The Yemeni Precambrian rocks have been subjected to multiple phases of deformation and metamorphism from regional pre-Pan-African deformation through to early-late Pan …

Mridhul Minerals is a one-stop destination where you can buy manmade and natural stones for indoor and outdoor spaces. From marbles to granites and quartz stones, several options are available for you. We aim to become one …

The North Qinling (NQ) orogen includes extensive Devonian magmatic rocks (Wang et al., 2013), primarily consisting of I-type granites with fairly lower A-type granite proportions (Han et al., 2021; Ren et al., 2021).Some I-type granites exhibit similar geochemical characteristics to those of adakites (Qin et al., 2020).Based on previous …

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