Alteration and petrology of Intrusive Rocks associated with Gold Mineralization at Kuh-E-Zar Gold Deposit, Torbat-e-HeydaryehAlireza Mazloumi BajestaniEraj RassaJournal of Economic Geology
Kimberlite is not only the rock most commonly associated with diamonds but also the cornerstone of the vast majority of commercial diamond mining activities worldwide. What Is Kimberlite Kimberlite is an ultramafic igneous rock, born from the fiery depths of the Earth's mantle. It forms when mol...
Porgera Gold Deposit, Papua New Guinea 129 6.6 Synthesis of Direct Genetic Associations 133 7 Indirect Associations Between Lamprophyres and Gold-Copper Deposits 135 7.1 Introduction 135 7.2 Shoshonitic Lamprophyres with Elevated Gold Concentrations from the Goodall Gold Deposit, Northern Terr...
southwest Nigeria. These metachaotic rocks are associated with schistose, marble, pegmatite, granitoid, and gneissose units. The mineral assemblage of the surrounding rocks shows garnet, biotite, staurolite, quartz, and chlorite assemblage, which suggest that the rocks were...
palladiferous gold mineralizationPalaeoproterozoic Itabira Iron FormationQuadrilatero FerriferoMinas GeraisBrazilThe Palaeoproterozoic Broken Hill Pb–Zn–Ag stratiform orebody is intimately associated with manganoan garnet-bearing rocks. On stratigraphic and chemical grounds it is argued that garnet-rich ...
It has also been recognized that adakites are often associated with Cu–Au mineralization, such as porphyry copper deposits and epithermal gold systems (e.g., Defant et al., 2002, Oyarzun et al., 2001, Qu et al., 2004, Thieblemont et al., 1997); Zhang et al., 2001a, Zhang et ...
Adakite-like rocks, as an important recorder of magmatic evolution in mantle and crust, are closely associated with major porphyry Cu deposits. However, the underlying mechanism connecting these associations remains insufficiently elucidated. This study compiles ca. 7000 whole-rock geochemical data from...
Alkalic intrusive rocks associated with the Mount Kare gold deposit, Papua New Guinea:comparison with the Porgera intrusive complex[J]. Econ. Geol., 1993, 88:755-78 doi: 10.2113/gsecongeo.88.4.755 CrossRef Google Scholar [57] Ronacher E, Richards J P, JohnstonM D. New mineralization...
3), an important gold and base metal host unit exposed in the central-western region of BIMA, is a volcanosedimentary sequence metamorphosed under amphibolite facies conditions (Fonseca, 1993; Fonseca et al., 1996). According to Fonseca et al. (1996), its basal felsic and mafic metavolcanic...
Large R, Danyushevsky L, Hollit C, Maslennikov V, Meffre S, Gilbert S, Bull S, Scott R, Emsbo P, Thomas H, Singh B, Foster J (2009) Gold and trace element zonation in pyrite using a laser imaging technique: implications for the timing of gold in orogenic Carlin-style sediment-ho...