نتایج جستجو برای: mineral paragenesis
تعداد نتایج: 66715 فیلتر نتایج به سال:
Abstract Scar Crags and Dale Head North in the English Lake District host mineralised veins enriched ‘Energy Critical Elements’ (ECEs) specifically, bismuth, cobalt copper. A limited number of studies 1970s investigated mineralogy inferred genesis these as being related to intrusion batholith. This study investigates geology, mineralogy, composition paragenesis two areas. The results highlight ...
Qaleh-Zari specularite-rich Cu-Ag-Au deposit is located 180 Km south of Birjand, in eastern Iran. Host rocks are mainly Tertiary calc-alkaline to K-rich calc-alkaline of 40.5±2 Ma and Jurassic sandstones and shales. Three major sub-parallel steep quartz veins are identified in different rock types, in particular andesitic rocks. The Qaleh-Zari deposit is a specularite-rich hydrothermal, Cu-Ag-A...
kuh-e-faryadoon and kouli kosh iron deposits are hosted by regional metamorphic rocks of sanandaj-sirjan zone around deh-bid area. plugs and domes of acid rocks protrude these metamorphic rocks. a mylonitization event is super imposed on acid rock and metamorphic complexes. field, petrological and geochemical studies have shown that (1) iron mineralization have occurred during mylonitization in...
The Dolomites of northern Italy feature some the most intensively studied carbonate rocks worldwide. Yet, little is known about long karst history this mountain range dating back to Miocene. This study scrutinizes three caves (F10, Milchloch and Cioccherloch) in Fanes-Sennes-Prags Nature Park (Province South Tyrol) adjacent Fosses area Natural Ampezzo Belluno, Veneto). Paleo-phreatic passages t...
چکیده ندارد.
The metal-rich Vazante-Paracatu Mineral Belt, in central Brazil, hosts the Zn-Pb sulfide Morro Agudo District Mesoproterozoic (1.3–1.1 Ga) upper carbonate sequence of Vazante Group. district is comprised deposit and Bento Carmelo, Sucuri, do Capão occurrences. This also Fagundes, Ambrósia Bonsucesso deposits (northern part) zinc silicate North Extension (southern part). structurally controlled,...
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