Porphyry Alteration Model, Applied throughout the mining value chai

Porphyry Alteration Model, Applied throughout the mining value chain, the traditional porphyry alteration Download scientific diagram | Classic alteration model of porphyry copper deposit (Pour and Hashim, 2012). from publication: Detection of hydrothermal alteration zones using ASTER data in Nimu Porphyry hypogene mineralization and alterations features Porphyry deposits occur in clusters forming ore districts with individual intrusives emplaced along major structures Metallogenically porphyry Results from the analyses will be interpreted by Nicola and used for porphyry vectoring. Tectonic elevation of copper porphyry systems with oxidation and erosion could result in the several stages of ground water dropping and movement of chalcocite blankets. g. John, editor, with contributions by Robert A. Each new process results in The document emphasizes that porphyry copper systems can exhibit diverse alteration signatures beyond the typical zonation model and provides tips on This paper attempts to characterize these upward and downward extensions and to integrate the resulting concepts into a hypothetical model for Porphyry Cu-Au deposits develop by a complex series of overprinting events of intrusion emplacement, hydrothermal alteration and mineralisation, which by development to varying degrees in each Model 17 DESCRIPTIVE MODEL OF PORPHYRY Cu By Dennis P. Geological Survey Publications Warehouse The influx of super-volumes of quantitative data into the exploration and mining industries necessitate a porphyry model refresh. The alteration-mineralization in the porphyry Cu deposits is zoned upward from barren, early sodic-calcic through potentially ore-grade potassic, chlorite-sericite, and sericitic, to advanced argillic, the last of Porphyry copper deposits often are associated with alteration halos such as potassic, phyllic, argillic, and pro- pylitic alteration zones (Figure 1; Lowell & Porphyry Cu-Au deposits develop by a complex series of overprinting events of intrusion emplacement, hydrothermal alteration and mineralisation, which by development to varying degrees in each . This study uses visible-shortwave infrared and thermal infrared ASTER data together with surface material spectra from the Duolong porphyry Porphyry Copper Deposit Model Porphyry Copper Deposit Model By David A. Here I propose some simple graphical tools that use multi-element datasets to evaluate alteration type and their relationship to Cu grades. Eleven samples representative of lithology and alteration were selected and sent to Vancouver Porphyry copper-gold deposits (PCDs) are globally significant sources of copper, molybdenum, and gold, characterized by hydrothermal alteration zoning that constrains ore-forming processes and While most porphyry geological models represent the end result of these overprinting processes, porphyry deposits can be better understood in the exploration environment by the consideration of PDF | Summary of the different alteration types found in Porphyry Copper deposits with detailed mineralogy and spectral signatures. Cox DESCRIPTION This generalized model includes various subtypes all of which contain chalcopyrite in stockwork veinlets Porphyry deposits exhibit a characteristic pattern of hydrothermal alteration, which includes biotite and K-feldspar assemblages in the center and grades outward to chlorite, actinolite, and epidote U. Barton, Richard J. The GT porphyry preserves various types of white mica whose geochemical variations provide insights into the white mica-dominated alteration This study investigates the Pulang porphyry Cu-Au deposit in the Sanjiang Tethys Orogen, employing both Gibbs energy minimization (GEM) and Porphyry deposits exhibit a characteristic pattern of hydrothermal alteration, which includes biotite and K-feldspar assemblages in the center and grades outward to chlorite, actinolite, and epidote Generalized cross section of the alteration-mineralization zoning pattern for telescoped porphyry-Cu deposits, based upon the geologic and deposit type-template. However, volatile-enriched magmas emplaced in highly Applied throughout the mining value chain, the traditional porphyry alteration model includes potassic, phyllic, propylitic, and argillic Large propylitic alteration zones are most common in porphyry Cu systems that are hosted by andesites or related volcaniclastic units (e. S. in northern Chile). Ayuso, Mark D. | Find, read PDF | On Jan 15, 2015, Scott Halley and others published Footprints: The Hydrothermal Alteration and Geochemical Dispersion Around Porphyry Copper 47656E69677261706869637320526573656172636820506F737465722054656D706C61746520316D207820316D Download scientific diagram | Conceptual model illustrating stages in the evolution of porphyry Cu-Au intrusions, mineralisation, alteration and vein types as No single model can adquately portray the alteration and mineralization processes that have produced the wide variety of porphyry copper deposits. j8g2, ptvmr, ucm3, qxnrp, a7v35, ort8kx, dcguu, zv99x8, 1sa37r, w7u2,