Results 91 to 100 of about 898,195 (216)

Magmatic-hydrothermal fluid evolution of the Dalli porphyry Cu-Au deposit; using Amphibole and Plagioclas mineral chemistry

open access: yesJournal of Economic Geology, 2017
Introduction The formation of porphyry copper deposits is attributed to the shallow emplacement, and subsequent cooling of the hydrothermal system of porphyritic intrusive rocks (Titley and Bean, 1981).
Houshang Pourkaseb   +3 more
doaj   +1 more source

Magma Emplacement Rates and Porphyry Copper Deposits:Thermal Modeling of the Yerington Batholith, Nevada [PDF]

open access: yes, 2017
Many porphyry copper deposits are associated with granitoid plutons. Porphyry copper deposit genesis is commonly attributed to degassing of pluton-forming intermediate to silicic magma chambers during slow cooling and crystallization.
Annen, Catherine   +4 more
core   +1 more source

The roles of surface processes on porphyry copper deposits preservation

open access: yesEarth Surface Dynamics
Abstract. Porphyry copper deposits typically originate within subduction zones at 2 to 5 km depths. These deposits are exhumed due to the influence of tectonic forces and climate-driven erosion. Porphyry copper deposits are currently only mineable at relatively shallow depths, and their prospectivity relies on a balance between the rate of exhumation ...
Beatriz Hadler Boggiani   +3 more
openaire   +3 more sources

A genetic model for the Los Uvares gold deposit, Baja California Sur, Mexico

open access: yesGeofísica Internacional, 1997
Los Uvares gold deposit is a relatively small ore deposit (~500,000 tons of ore averaging 3 grams of gold per ton), lo¬cated in the crystalline complex of the Cabo San Lucas block in southern Baja California peninsula.
H. Huyck, A. Carrillo
doaj  

Element Migration of Mineralization-Alteration Zones and Its Geological Implication in the Beiya Porphyry–Skarn Deposit, Northwestern Yunnan, China

open access: yesApplied Sciences
Porphyry and the associated skarn-type deposit is one of the most important types of ore deposits worldwide, which usually exhibit significant zoning of mineralization-alteration, but the research on element migration in these mineralization-alteration ...
Fei Liu   +4 more
doaj   +1 more source

Impact of geology on ore grade estimation of a porphyry copper deposit

open access: yes, 1990
Accurate ore estimation processes are of crucial importance in the mining scenario. Over the last 20 years, one practical approach to improve ore grade estimation has encouraged the need to incorporate the geology of the ore deposit being estimated in ...
de Sousa, Eudes Alves, 1959-
core   +2 more sources

A Machine Learning Zircon Trace Element Tool to Predict Porphyry Deposit Type and Resource Size

open access: yesJournal of Geophysical Research: Machine Learning and Computation
Porphyry deposits are primarily known for their association with base metals like copper and to some extent molybdenum and gold. Here we present machine learning models, based on zircon composition, that provide quantitative distinction between different
Zi‐Hao Wen   +6 more
doaj   +1 more source

In situ U-Pb dating and trace elements of magmatic rutile from Mujicun Cu-Mo deposit, North China Craton: Insights into porphyry mineralization

open access: yesChina Geology
: Porphyry Cu (Mo-Au) deposit is one of the most important types of copper deposit and usually formed under magmatic arc-related settings, whilst the Mujicun porphyry Cu-Mo deposit in North China Craton uncommonly generated within intra-continental ...
Fan Yang   +6 more
doaj   +1 more source

Porphyry Copper Deposits of East Kazakhstan

open access: yesTrudy Universiteta, 2022
Altynay RAGDANOVA   +3 more
openaire   +1 more source

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