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· Porphyry Deposits are generally associated with acidic to intermediate intrusives such as granite granodiorite tonalite diorite. The host intrusions are the youngest and most differentiated plutons. Porphyry Cu deposits are generally emplaced passively rather than forcefully ie an extensional rather than compressive regime.
Chat Online· The Shuangjianzishan vein-type Ag-Pb-Zn deposit in the southern Great Xing an Range (GXR) NE China is hosted in the slate of the Lower Permian Dashizhai Formation intruded by granite porphyry. In this paper U–Pb zircon ages and bulk-rock and
Chat Online· Deposit Types. Kaolin deposits are commonly classified into two types (Harben Kužvart 1996). Primary (residual) deposits. Formed by in-situ hydrothermal alteration and/or leaching and weathering of such feldspar-rich rocks as granite syenite or gneiss. Secondary (transported) deposits. These are composed of detrital clay derived from
Chat Online· Porphyry Two porphyry units can be identified. The Arcturus porphyry has a similar composition to the granites and forms the contact phase of the intrusives. The Schuchert porphyry is the latest intrusive phase of the pre/syn mineralisation units. Aplites Emplaced within the granite intrusion possibly in several phases .
Chat OnlineAbstract. This report provides a descriptive model for arc-related porphyry molybdenum deposits. Presented within are geological geochemical and mineralogical characteristics that differentiate this deposit type from porphyry copper and alkali-feldspar rhyolite-granite porphyry molybdenum deposits.
Chat OnlineAbstract. This report provides a descriptive model for arc-related porphyry molybdenum deposits. Presented within are geological geochemical and mineralogical characteristics that differentiate this deposit type from porphyry copper and alkali-feldspar rhyolite-granite porphyry molybdenum deposits.
Chat Online· (2) Tin-mineralized granite porphyries which are the most important Sn orebodies in the Yinyan deposit. These orebodies are located in the middle and upper parts of the concealed granite porphyry body and show a pipe-like shape in profile and an ellipse-like shape in plan view with an area of 0.06 km 2 (Fig. 3b c Guan et al. 1988).
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Chat Online· In 2008 Dart Mining discovered the Unicorn porphyry Cu-Mo-Ag deposit (Table 2.2.1) in northeastern Victoria which was interpreted as a Climax-type porphyry Mo deposit (Hochwimmer 2012). This deposit is located south of the Holbrook disseminated Mo-Sn-Cu deposit which has an age of ˜421 Ma (Norman et al. 2004).
Chat OnlineProcesses controlling the metal endowment of arc-related porphyry Mo deposits are not well understood. Located in northeastern China the arc-related Luming porphyry Mo deposit has a proven reserve of 0.75 Mt Mo at an average grade of 0.092 wt and is characterized
Chat OnlineGranite-related porphyry Sn systems form in back arc or hinterland settings by similar processes from fluids exsolved from more crustally contaminated S-type peraluminous plutons and stocks. At deep levels LCT pegmatites emanate from plutons.
Chat Online· The Alakha lithium–tantalum deposit in the southern Altai Russia is represented by a stock of spodumene-bearing granite porphyry localized in the Kalba–Narym–Koktogai lithium–tantalum rare-metal granitic belt unique in extent (more than 1000 km). This belt is a part of the Altai accretionary–collisional system. Judging from forecasting the Alakha deposit can be regarded as an
Chat OnlinePorphyry and Blue Granite reserves play an important role in a country s economic growth. Rocks are deposited according to the topography of the area. Some oldest rocks can be found in the Canadian Shield Australia Africa and in a few other old regions around the world. The ages of these felsic rocks are around 2.5 and 3.8 billion years.
Chat OnlineThe residual kaolin deposits near Lastarria South-Central Chile were formed by weathering of subvolcanic quartz porphyry stocks which intruded the metamorphic basement of the Coastal Cordillera.
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Chat Online· The Alakha lithium–tantalum deposit in the southern Altai Russia is represented by a stock of spodumene-bearing granite porphyry localized in the Kalba–Narym–Koktogai lithium–tantalum rare-metal granitic belt unique in extent (more than 1000 km). This belt is a part of the Altai accretionary–collisional system. Judging from forecasting the Alakha deposit can be regarded as an
Chat OnlinePorphyry and Blue Granite reserves play an important role in a country s economic growth. Rocks are deposited according to the topography of the area. Some oldest rocks can be found in the Canadian Shield Australia Africa and in a few other old regions around the world. The ages of these felsic rocks are around 2.5 and 3.8 billion years.
Chat Online· Cu deposits ≤150 ppm in arc-related porphyry Mo deposits and ≤35 ppm in alkali-feldspar rhyolite-granite (Climax-type) porphyry Mo deposits. Because of the relatively small size of porphyry Mo deposits compared to porphyry Cu deposits and the generally low Re contents of molybdenites in them rhenium is not recovered from porphyry Mo
Chat Online· Skarn deposits are also zoned in this mineral system with Cu-rich skarns generally very close to the causative intrusion but Zn-Pb-rich skarns more distal. An important feature of the porphyry-epithermal mineral system is the telescoping of different deposit types for instance porphyry Cu-Au-Mo deposits and epithermal deposits of various types.
Chat OnlinePorphyry is an igneous rock that contains larger crystals (phenocrysts) in a fine-grained groundmass. K-feldspar phenocrysts in this sample. Width of view 7 cm. TUG . It seems simple enough but unfortunately there are many different interpretations. Sometimes it is assumed that porphyry is granitic in composition 1 while other sources
Chat OnlinePorphyry is an igneous rock that contains larger crystals (phenocrysts) in a fine-grained groundmass. K-feldspar phenocrysts in this sample. Width of view 7 cm. TUG . It seems simple enough but unfortunately there are many different interpretations. Sometimes it is assumed that porphyry is granitic in composition 1 while other sources
Chat OnlineThis report provides a descriptive model for arc-related porphyry molybdenum deposits. Presented within are geological geochemical and mineralogical characteristics that differentiate this deposit type from porphyry copper and alkali-feldspar rhyolite-granite porphyry molybdenum deposits. The U.S. Geological Survey s effort to update existing mineral deposit models spurred this research
Chat Online· The Yinyan porphyry tin deposit in western Guangdong is spatially associated with quartz porphyry and granite porphyry. LA–ICP–MS zircon U–Pb dating defined an emplacement age of 78.5 ± 0.4 Ma for the quartz porphyry and 79.2 ± 0.9 Ma for the granite porphyry. LA–ICP–MS cassiterite U–Pb dating yielded Tera–Wasserburg lower intercept ages of 78.5 ± 0.6 78.6 ± 1.2 and 78.2 ±
Chat OnlineThe volcanic rocks are belong to the high-K calc-alkaline to alkaline series while the granite porphyry is belongs to A-type granite which suggests an extensional tectonic setting. Our new data indicates that the Daxiyingzi gold deposit is a typical epithermal-mesothermal deposit formed by a Late Jurassic magmatic-hydrothermal system.
Chat Online· deposit include granite porphyry granodiorite porphyry quartz–albitite porphyry and fine-grained granite. Plutonic rocks (in drill holes) are dikes intruding hornfels and include dolerite quartz diorite porphyry granodiorite por-phyry monzonite to quartz monzonitic porphyry and mon-zonitic granite porphyry 22 25 27 28 35 57 63
Chat Online· The Alakha lithium–tantalum deposit in the southern Altai Russia is represented by a stock of spodumene-bearing granite porphyry localized in the Kalba–Narym–Koktogai lithium–tantalum rare-metal granitic belt unique in extent (more than 1000 km). This belt is a part of the Altai accretionary–collisional system. Judging from forecasting the Alakha deposit can be regarded as an
Chat OnlineChina is a significant producer of kaolin with 2.1 Mt in 2002 representing 8.4 of the world s total of 24.9 M t. The kaolin resources are widespread throughout the country and are varied in their
Chat Online· The Shuangjianzishan vein-type Ag-Pb-Zn deposit in the southern Great Xing an Range (GXR) NE China is hosted in the slate of the Lower Permian Dashizhai Formation intruded by
Chat Online· "O 13 "PanistOpenUrl" 36 s 10 "u0000 u0000openUrl"Ns 6 "u0000 u0000idc"Ns 6 "u0000 u0000fmt"s 10 "proceeding"s 6 "u0000 u0000doi"s 0
Chat Online· Cu deposits ≤150 ppm in arc-related porphyry Mo deposits and ≤35 ppm in alkali-feldspar rhyolite-granite (Climax-type) porphyry Mo deposits. Because of the relatively small size of porphyry Mo deposits compared to porphyry Cu deposits and the generally low Re contents of molybdenites in them rhenium is not recovered from porphyry Mo
Chat Online· Types i) Porphyry CopperCu Cu-Mo Cu-Au deposits typical grades of 0.4-1 Cu largest porphyry copper 1.5-3 Bt of 0.8-2 Cu. ii) Porphyry MolybdenumCan be distinguished from Porphyry Copper deposits on Mo/Cu ratios (>1) molybdenum deposits typically do not contain recoverable copper. >0.05 Mo generally <1 Bt. Bingham Canyon
Chat Online· The bright white kaolin deposit is situated 45km east of Streaky Bay on the EL 5814 Tootla tenement within the Poochera project. The project has five tenements spread across 2 069km². A new 481km² tenement application for land with potential for high-quality halloysite-kaolin is pending approval from the regulator.
Chat OnlineDeposit BENNETT 1975 GEOLOGY AND ORIGIN OF THE BRECCIAS IN THE MORENCI-METCALF DISTRICT GREENLEE CO. AZ MS THESIS UNIV OF AZ. PHILLIPS K.A. 1987 ARIZONA INDUSTRIAL MINERALS ARIZONA DEPARTMENT OF MINES AND MINERAL RESOURCES MINERAL REPORT 4 185 P.
Chat Online· Porphyry Deposits are generally associated with acidic to intermediate intrusives such as granite granodiorite tonalite diorite. The host intrusions are the youngest and most differentiated plutons. Porphyry Cu deposits are generally emplaced passively rather than forcefully ie an extensional rather than compressive regime.
Chat Online· The Yinyan porphyry tin deposit in western Guangdong is spatially associated with quartz porphyry and granite porphyry. LA–ICP–MS zircon U–Pb dating defined an emplacement age of 78.5 ± 0.4 Ma for the quartz porphyry and 79.2 ± 0.9 Ma for the granite porphyry. LA–ICP–MS cassiterite U–Pb dating yielded Tera–Wasserburg lower intercept ages of 78.5 ± 0.6 78.6 ± 1.2 and 78.2 ±
Chat Online· deposit include granite porphyry granodiorite porphyry quartz–albitite porphyry and fine-grained granite. Plutonic rocks (in drill holes) are dikes intruding hornfels and include dolerite quartz diorite porphyry granodiorite por-phyry monzonite to quartz monzonitic porphyry and mon-zonitic granite porphyry 22 25 27 28 35 57 63
Chat OnlineThe residual kaolin deposits near Lastarria South-Central Chile were formed by weathering of subvolcanic quartz porphyry stocks which intruded the metamorphic basement of the Coastal Cordillera.
Chat Online· Kaolin. Kaolin from Lal Lal Victoria (Scale 13 cm) The term kaolin is typically used for clayey material that is low in iron content and is white or nearly white and composed of minerals of the kaolin group. The kaolin-forming clays are all hydrous aluminium silicates essentially kaolinite Al 2 (Si 2 O 5 ) (OH) 4 that are formed by the
Chat Online· Representative examples of the rock types found in porphyry copper deposits are listed in table 1. Relations to Sedimentary Rocks Volcaniclastic rocks are common in many districts but any sedimentary rock may be spatially associated with a porphyry copper deposit. Where carbonate rocks or carbonate-bearing units are host rocks replacement
Chat OnlineAt Sams Creek a peralkaline granite porphyry dyke hosts gold-bearing sulfide-quartz-siderite veins. The granite dyke intrudes Ordovician-Silurian metapelite and quartzite and has thin lamprophyre dykes along its contacts. The mineralised veins and the granite and lamprophyre dykes have been deformed during several phases of folding the youngest of which is Early Cretaceous.
Chat Online· In 2008 Dart Mining discovered the Unicorn porphyry Cu-Mo-Ag deposit (Table 2.2.1) in northeastern Victoria which was interpreted as a Climax-type porphyry Mo deposit (Hochwimmer 2012). This deposit is located south of the Holbrook disseminated Mo-Sn-Cu deposit
Chat Online· "O 13 "PanistOpenUrl" 36 s 10 "u0000 u0000openUrl"Ns 6 "u0000 u0000idc"Ns 6 "u0000 u0000fmt"s 10 "proceeding"s 6 "u0000 u0000doi"s 0
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