نتایج جستجو برای: orogenic gold mineralization

تعداد نتایج: 97355  

Journal: :Iraqi geological journal 2022

The research at Mendoke Mountains, Southeast Sulawesi Province, particularly for the study of gold deposits, becomes a new challenge because there is no previous detailed study. This aims to analyze characteristics orogenic which include type and texture quartz veins, alteration hydrothermal mineralization with hosted metamorphic rocks. methods used fieldwork laboratory analysis. veins were ide...

Journal: :فیزیک زمین و فضا 0
محمدرضا حیدریان شهری دانشگاه فردوسی مشهد- دانشیار محمدحسن کریم پور دانشگاه فردوسی مشهد- استاد آزاده ملک زاده دانشگاه فردوسی مشهد- دانشجوی دکتری

hired is a large gold prospecting area which is located in south khorasan province, in the east of iran. gold mineralization is found in 4 target areas covering about 24 km2. the host rocks are mainly tertiary volcanics, some jurassic and cretaceous sediments. sub-volcanic rocks are of magnetite series (gabbros to diorite) and ilmenite series (granite-granodiorite-monzonite) which have intruded...

Journal: :Minerals 2023

The East Kunlun Orogenic Belt is considered as one of the important gold mineralization regions in Tethys tectonic domain. These orogenic deposits are related to intermediate-acid intrusions formed at end Paleo-Tethys evolution, but petrogenesis controversial. This paper presents a new study on geochemistry zircon U-Pb, O, S, and Pb isotopic compositions Asiha quartz diorite, granite porphyry, ...

1996
Adam J. R. Kent Kevin F. Cassidy Mark Fanning

Sm-Nd ages of pegmatite dikes that crosscut gold-bearing structures in the southern Yilgarn Craton, Western Australia, provide minimum age constraints of 2640 6 11 Ma, 2628 6 10 Ma, and 2620 6 36 Ma for gold mineralization at the Westonia and Nevoria (Yellowdine Terrane) and Scotia (Norseman Terrane) gold deposits, respectively. Similarly, a post–gold mineralization dike at Westonia has a U-Pb ...

عابدی, آرزو,

Gold - Polymetal mineralization of Kohe-zar area is located alout 35 kilometers southwest of Torbat - Heydarieh in Khorasan province. Mineralization was oeeured in quartz - speeularite ± pyrite ± chacopyrite veins and vein lets. The main ore minerals are specularite, chalcopyrite, pyrite, avinite (Bi - bearing tetraedrite), acanthite, native bismuth (occurred intergrowth with barite), nat...

Journal: :Minerals 2023

Several orogenic/sediment-hosted gold deposits are widely distributed in the Central Belt of Peninsular Malaysia. This study combines U-Pb dating with isotope composition lead as well content ore and magmatic rock-hosted pyrite. It aims to investigate age mineralization possibly establish a link between intrusion district. The results show that S-type rocks yield crystallisation ages ranging fr...

خردمند, علی, عبدالهی, محمد جواد , کریم‌پور, محمد حسن ,

The Muteh gold district is located about 70 km northeast of Golpaygan within Sanandaj-Sirjan metamorphic zone of Zagros Structural Belt. Geological studies show that the area had been under poly - phase metamorphism. Gold mineralization occurs in metamorphic complex which consists mainly of green schists, meta-volcanics, and gneisses. Shear zones are the host of gold mineralization, and intense...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید