نتایج جستجو برای: primary gold mineralization

تعداد نتایج: 732825  

Journal: :Indonesian Journal on Geoscience 2022

DOI:10.17014/ijog.9.3.279-290 The Wanagon Gold prospect area located in the Ertsberg District, Papua Province, eastern part of Indonesia, is predominantly underlain by Upper Mesozoic to Cenozoic sedimentary rocks intruded Sill monzodiorite-diorite and andesite intrusion (Wanagon Dike). study previous researchers at was based on pre-2005 exploration data did not contain extensive additional dril...

Journal: :Minerals 2022

Ulug-Sair Au-Bi-Te-Se mineralization is one prospect for native Au in the Western Tuva, and its origin remains debated. Mineralization consists of gold–sulfide–quartz veins host sedimentary rocks (conglomerates, siltstones, shales), quartz–tourmaline, quartz–carbonate–sericite–altered rocks. To determine origin, we examined mineralogical–geochemical features, formation conditions, fluid sources...

Journal: :GeoScience Engineering 2021

Geological and geochemical studies of gold mineralization in Bode-Saadu axis, Southwestern Basement Complex, Nigeria have been conducted order to study their mode occurrence, structural settings, pattern distribution potential. reveal that granite gneiss are the prominent rocks area exist north-eastern, north-western southwestern part whereas mica amphibole schist occur as low-lying exposure. P...

2008
PETER M. VITOUSEK

Potential nitrogen mineralization and nitrification were measured in soils from a primary successional sequence developed on sand dunes and from a secondary successional sequence on old fields. Potential nitrogen mineralization in soils from the primary sere increased through the first five stages and then leveled off. Nitrogen mineralization was relatively constant in soils from the secondary ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید بهشتی - دانشکده علوم زمین 1388

چکیده ندارد.

Journal: :journal of tethys 0

the takmeh-dash region comprises a wide variety of igneous bodies that have been developed from early to late neogen. the granitic rocks and related aplite apophyses have been developed along fault-dominated structures which defines a well pronounced mineralized zone. according to isotopic and fluid inclusion studies, most of the quartz-pyrite units are solution-related with some traces of cu, ...

Journal: :Minerals 2022

The Jagpura Au-Cu deposit is situated within the Aravalli craton in northwestern part of India. In present work, petrography, mineral chemistry, fluid inclusion and sulfur isotopic compositions were used to study deposit. ore association arsenopyrite, loellingite, chalcopyrite, pyrrhotite pyrite, along with native gold, magnetite apatite. gold fineness ranges from 914–937‰ (avg. 927‰). presence...

Journal: :Minerals 2023

The Lut Block is a potential porphyry-style mineralized region in Iran including the well-explored Shadan porphyry gold-copper deposit, which has an extensive zone of gold- and copper-bearing stockwork-like sheeted veins. structural setting this deposit key to understanding genesis mineralization. Our field studies show that mineralization occurs as steeply dipping ore bodies along NW–SE transp...

Journal: :Mineralium Deposita 2021

Abstract Studies of populations gold particles are becoming increasingly common; however, interpretation compositional data may not be straightforward. Natural is rarely homogenous. Alloy heterogeneity present as microfabrics formed either during primary mineralization or by modification pre-existing alloys chemical and physical drivers subsequent residence in hypogene surficial environments. I...

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