Porphyry model
WebThere are five key factors that can give rise to porphyry development: 1) compression impeding magma ascent through crust, 2) a resultant larger shallow magma chamber, 3) enhanced fractionation of the magma along with volatile saturation and generation of magmatic-hydrothermal fluids, 4) compression restricts offshoots from developing into … WebThe aim of the project is to confirmed the initial porphyry model of the area and to assist deep… Lihat selengkapnya The preliminary magnetotelluric study or electromagnetic mapping (Emap) has conducted in Doup Porphyry Au - Cu project at Kotabunan, North Sulawesi. The survey used 25m Tx spacing within 1000m length and 100m line spacing …
Porphyry model
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WebJan 1, 2010 · Porphyry Cu systems host some of the most widely distributed mineralization types at convergent plate boundaries, including porphyry deposits centered on … WebPorphyry deposits are formed in arc-related settings and are associated with subduction zone magmas. Porphyry deposits are clustered in discrete mineral provinces, which …
WebPorphyry is a diversity of igneous rock consisting of large-grained crystal such as quartz and feldspar scattered in a fine-grained groundmass. The groundmass is composed of … WebThis report contains a revised descriptive model of porphyry copper deposits (PCDs), the world’s largest source (about 60 percent) and resource (about 65 percent) of copper and a major source of molybdenum, gold and silver. Despite relatively low grades (average 0.44 …
WebJan 26, 2024 · Porphyry-type deposits are the main global source of copper and molybdenum. An improved understanding of the most favorable structural settings for the …
Porphyry is the name given to decorative granites or igneous rocks with coarse-grained crystals such as feldspar or quartz dispersed in a fine-grained silicate-rich, generally aphanitic matrix or groundmass. The larger crystals are called phenocrysts. In its non-geologic, traditional use, the term porphyry usually refers to the purple-red form of this stone, valued for its appearance, but other colour…
WebOct 21, 2024 · On the left, the model shows the three alteration zones (propylitic, phyllic, and potassic) along with the ore body. On the right, it is the same thing but with the pyrite halo. This copper... tso 77058WebThe Qulong porphyry copper deposit in Tibet is located in the Tethis–Himalaya metallogenic domain, one of the three major porphyry metallogenic domains in the world. … tso 77049WebPorphyry-type mineral deposits result when large amounts of hot water that carry small amounts of metals pass through permeable rocks and deposit the metals. Alteration ... No single model can adquately portray the alteration and mineralization processes that have produced the wide variety of porphyry copper deposits. However, volatile-enriched ... phineas and ferb platypus nameWebNov 15, 2012 · Here, we present numerical simulations of the physical hydrology of porphyry systems that link the expulsion of saline magmatic fluids with the transient evolution of rock permeability and the dynamics of two-phase fluid flow ().The geometric configuration of our model is a two-dimensional (2D) representation of a 10- by 3-km magma chamber of … tso 77015Webcurrent model for staged porphyry development illustrated in figure 3. • Emplacement of the porphyry intrusion, commonly as an apophysis to a larger underlying magmatic source, … tso 77073WebThe rationale for the choice of the porphyry copper-gold model of Cox and Singer (1992) was based on our ability to identify characteristics in the known Arizona deposits that are unique to the porphyry Cu-Au deposit model and on our ability to distinguish a geologic setting for gold-rich porphyries that is different from the general porphyry-copper … phineas and ferb platypus t shirtWebSep 7, 2024 · A reconstruction of conceptual updates to the porphyry copper deposit model in the context of geochemistry, and some related technical developments. Content … tso777