·1 1 Geol 481 Earth Resources El Shazly A K 2004 Textures of Ore Deposits and associated features Importance of studying textures Textural identification and interpretation for ore deposits and associated gangue minerals are tools necessary for understanding the processes involved in the genesis of these deposits which in turn is very important for
The best ore deposits are those containing large amounts of ore minerals The best metal ore minerals are those that contain large amounts of metals of value Most metallic ore minerals are native elements sulfides sulfosalts oxides or hydroxides Ore deposits are highly variable in nature and origin
·10 2 Assessment of Ore Deposit Settings Fig Jurassic Cretaceous successions in Zangla area Zanskar valley showing tectonic stacking of formations in the Trans Himalayan set up Apart from recumbent and refolded folds stacking is also an important manifestation of crustal shortening that goes with the subduc
·The major role played by pre existing structures in the formation of vein style mineral deposits is demonstrated with several examples The control of a pre existing decollement level on the formation of a crustal extension related collapse gold deposit is first illustrated in the Quadrilátero Ferrífero from Brazil Shear zone and decollement structures were also examined
·Ore deposit classification 1 ppt Download as a PDF or view online for free Ore deposit classification 1 ppt Download as a PDF or view online for free • Comb structure When minerals crystallize inwards from opposite walls of a vein they often meet in the center to form an interdigitating pattern of crystals usually quartz which
·The information about mineral deposits and ore indications are mostly from the National Geosciences Database of Iran The specifications of mineral deposits in the study area illustrated in Fig 2 and magnetic structures Some Fe deposits in the study area occur on dense blocks where the crust is approximately 40 km thick
·Metamorphic Structures Metamorphism which is the alteration of rocks due to changes in temperature pressure and chemical environment can also affect the textures and structures of chromium ore deposits Metamorphic structures such as foliation schistosity and lineation can be observed in chromite bearing rocks providing information
·Schematic structure of skarn deposits showing typical alteration mineralogy and metal zoning and associated minerals in ore deposits comprise rocks that may be
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