نتایج جستجو برای: orogenic gold mineralization

تعداد نتایج: 97355  

Journal: :Frontiers in Earth Science 2023

Introduction: The Zhangjiapingzi gold deposit, located at the western margin of Yangtze Craton and controlled by Jinhe-Chenghai deep fault, is a newly discovered super-large deposit in Danba-Mianning metallogenic belt. ore bodies are hosted Middle Triassic (T 2 ) altered dolomite (Dm), have two types mineralization: rock type quartz vein type. Previous studies on this rare, especially ore-fluid...

Journal: :زمین شناسی اقتصادی 0
زهرا اعلمی نیا محمد حسن کریم پور سید مسعود همام

introduction pyrite is the most abundant sulfide mineral in low sulfidation ore deposits. experimental studies have shown that low-temperature ( 200°c) from hydrothermal or metamorphic fluids (butler and rickard, 2000). framboidal pyrite mostly occurs in sedimentary environments, though it could also form during metamorphism and hydrothermal alteration (scott et al., 2009). the pyrite formed te...

2013
T. Ganesh D. D. Sarma P. R. S. Reddy

Gold mineralisation is the result of physico-chemical and thermal processes of the earth’s interior. We may view a geological process of gold mineralization as a stochastic process Z(x): xD, where D may be considered as a mineral deposit. In the case of gold mineralization, samples drawn at regular intervals may be considered as following a discrete stochastic process. The point of interest is...

Journal: :Acta Geologica Sinica - English Edition 2019

Journal: :Mineralium Deposita 2022

Abstract Many workers accept a metamorphic model for orogenic gold ore formation, where gold-bearing aqueous-carbonic fluid is an inherent product of devolatilization across the greenschist-amphibolite boundary with majority deposits formed within seismogenic zone at depths 6–12 km. Fertile oceanic rocks that source and metal may be heated through varied tectonic scenarios affecting deforming u...

Karimpour, , Malekzadeh Shafaroudi, , Miri, ,

Bijvard prospect area is located in the northern part of Central Iran zone, Sabzevar zone, about 40 km north of Bardaskan. The rock units exposed in the area include Cretaceous volcano-sedimentary rocks (andesite, basalt, graywacke and conglomerate) that syenogranite porphyry unit has intruded into them.  Mineralization has structural control, with N35E trending, and has altered the andesitic r...

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