نتایج جستجو برای: copper deposit

تعداد نتایج: 99410  

2012
Juan C. M. Gamboa Denise F. S. Petri Tânia M. Benedetti Vinicius R. Gonçales Mauro Bertotti

The deliberate manipulation of electrodic surfaces consists of an area of continuing interest, because this approach leads to an improvement in the ability to recognize molecules and carry out electron transfer processes at higher rates. Hence, one of the dominant subjects in electrochemistry is the attempt to control the chemical composition and morphological structure of the electrode surface...

Journal: :زمین شناسی اقتصادی 0
بالنده امین زاده جمشید شهاب پور مرتضی اسدی پور

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...

ملک‌زاده شفارودی, آزاده , مهوشی, مهوش ,

Cheshmeh Gaz (Nasim) copper deposit is located in northwest of Bardaskan, Khorasan Razavi province. Geology of the area is consist of andesite, basalt, nummulitic limestone, and marl with gypsum intercalations Eocene in age, Pliocene conglomerate, and Quaternary sediments. Mineralization has been formed in andesites and contact between andesitic units and limestone as stratabound with dissemina...

حیدریان شهری, محمدرضا , ملک‌زاده شفارودی, آزاده , مهدوی, امیر , کریم‌پور, محمدحسن ,

Gazu copper deposit is located in the boundary of Tabas and Lut block, 65km southeast of Tabas and 15km southwest of Deyhouk. The dominant lithology in the area consists of Shotori dolomite and limestone and Shemshak shale and sandstone.  Intrusive rocks with intermediate composition are widespread and numerous in the area. They consist of diorite, monzonite, and quartz monzonite to granite. Mi...

قطمیری, سید حسین,

Chahar-Gonbad copper mine, in Kerman province, has mainly formed as veins with low reserves and medium grade. Mineralization is mainly occured as chalcopyrite, pyrite, rare galena and sphalerite. Sericitic, argillic and propylitic alterations have been identified in this are deposit. These alteration occurod in the thermal range of about 350 C. In this research, the morphology of pyrite c...

بیابانگرد, حبیب , محمدپور, فاطمه , میرزایی راینی, رضوان , میرنژاد, حسن , نیرومند, شجاع الدین ,

Mahour 2 lead deposit is located in the east of Lut block and 145Km west of Nehbandan and about 2 km north west of  Mahour copper  deposit. Altered andesitic rocks are the main host of lead deposit. Plagioclase, quartz, hornblende and biotite are major minerals of andesitic rocks. Plagioclase, the most abundant mineral, had mostly replaceded by secondary minerals such as sericite, chlorite and ...

Journal: :زمین شناسی اقتصادی 0
فرید مر عباس اعتمادی سینا اسدی نسیم فتاحی

introduction one of the first principles in the formation of a reserve is mineralogical, construction and mineral textures studies and investigation of paragenetic relations in the ore minerals. in addition, to petrographic studies, isotopic investigates have wide applications in economic geology. in general, copper isotope variability in primary (high temperature) mineralization forms a tight ...

Alipour, , Hosaini, , Sanedoost, ,

Agh-Darreh copper deposit is located in Tarom area, about 25 km north of Abhar city. Main alterations identified in this region include silicic, argillic, and propylitic. Andesite and silica veins host sulfide mineralization. Chalcopyrite and pyrite are the main hypogene minerals accompanied by gold and silver in siliceous veins, with smaller amounts of galena. Malachite, azurite and goethite a...

Journal: :Paleo-aktueel 2022

Copper, lead and tin – an extraordinary Late Bronze Age string of beads from Borger. Around 2017, amateur metal detectorist searching at Borger in the immediate vicinity base a Middle barrow, which had been excavated 1987, came across 245 beads: four large 241 small ones. One is made lead, two are lead/tin alloy one copper; biconical cylindrical all copper. XRF analysis showed that copper type ...

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