Essays about: "Greenstone belt"
Found 3 essays containing the words Greenstone belt.
-
1. Characterization of Cu-mineralized carbonate veins in the Alta-Kvænangen Tectonic Window, Norway
University essay from Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurserAbstract : The Alta-Kvænangen Tectonic Window is part of a regional greenstone belt that formed around 2.3 Ga – 2.0 Ga. The Bergmark anticline in the area has gone through greenschist to amphibolite facies metamorphism and hosts Cu, Co and Au mineralizations in hydrothermal veins, albite felsite and chemical traps. READ MORE
-
2. The Kalgoorlie gold : a review of factors of formation for a giant gold deposit
University essay from Lunds universitet/Geologiska institutionenAbstract : The Archaean Yilgarn craton in Western Australia is a granite greenstone belt with abundant economically important mineral reserves, including several world-class gold deposits such as the giant Kalgoorlie deposit. Structural controls on gold deposition and the fact that most deposits were formed later in the craton’s tectonic history, has resulted in the general acceptance of a late-orogenic structurally-controlled model for gold mineralization in the Yilgarn craton. READ MORE
-
3. Petrology of Birimian granitoids in southern Ghana : petrography and petrogenesis
University essay from Lunds universitet/Geologiska institutionenAbstract : Den Paleoproterozoiska Birimiska terrinen består av vulkaniska och sedimentära bergarter i grönstensbälten och metasedimentära bassänger som har blivit intruderade av två generationer granitoider. Den Birimiska terrinen utgör en stor del av den västafrikanska kratonen. READ MORE
