Porphyry copper deposit formation by sub-volcanic sulphur dioxide flux and chemisorption

2015 ◽  
Vol 8 (3) ◽  
pp. 210-215 ◽  
Author(s):  
Richard W. Henley ◽  
Penelope L. King ◽  
Jeremy L. Wykes ◽  
Christian J. Renggli ◽  
Frank J. Brink ◽  
...  
Keyword(s):  
Sulphur Dioxide ◽  
Porphyry Copper ◽  
Copper Deposit ◽  
Porphyry Copper Deposit ◽  
Deposit Formation

scholarly journals Magma Emplacement Rates and Porphyry Copper Deposits: Thermal Modeling of the Yerington Batholith, Nevada

2017 ◽  
Vol 112 (7) ◽  
pp. 1653-1672 ◽  
Author(s):  
Anne Schöpa ◽  
Catherine Annen ◽  
John H. Dilles ◽  
R. Stephen J. Sparks ◽  
Jon D. Blundy
Keyword(s):  
Porphyry Copper ◽  
Copper Deposit ◽  
Porphyry Copper Deposit ◽  
Testable Hypothesis ◽  
Porphyry Copper Deposits ◽  
Magma Chambers ◽  
Deposit Formation ◽  
Slow Cooling ◽  
Copper Deposits ◽  
Magma Emplacement

Abstract 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. We use numerical simulations of thermal evolution during pluton growth to investigate the links between pluton construction, magma accumulation and solidification, volatile release, and porphyry copper deposit formation. The Jurassic Yerington batholith, Nevada, serves as a case study because of its exceptional exposure, revealing the geometry of three main intrusions. The last intrusion, the Luhr Hill granite, is associated with economic porphyry copper deposits localized over cupolas where dikes and fluid flow were focused. Our simulations for the conceptual model linking porphyry copper deposits with the presence of large, highly molten magma chambers show that the Luhr Hill granite must have been emplaced at a vertical thickening rate of several cm/yr or more. This magma emplacement rate is much higher than the time-averaged formation rates of other batholiths reported in the literature. Such low rates, although common, do not lead to magma accumulation and might be one of the reasons why many granitoid plutons are barren. Based on our results, we formulate the new testable hypothesis of a link between porphyry copper deposit formation and the emplacement time scale of the associated magma intrusion.

scholarly journals Supplemental Material: A new model for the optimal structural context for giant porphyry copper deposit formation

2021 ◽  
Author(s):  
Jose Piquer ◽  
et al.
Keyword(s):  
Porphyry Copper ◽  
Copper Deposit ◽  
Porphyry Copper Deposit ◽  
Mineral Deposits ◽  
Deposit Formation ◽  
New Model ◽  
Structural Context

Tables S1 and S2, a summary of all the relevant data from mineral deposits and active volcanic systems compiled for testing the model presented in this work.<br>

scholarly journals Supplemental Material: A new model for the optimal structural context for giant porphyry copper deposit formation

2021 ◽  
Author(s):  
Jose Piquer ◽  
et al.
Keyword(s):  
Porphyry Copper ◽  
Copper Deposit ◽  
Porphyry Copper Deposit ◽  
Mineral Deposits ◽  
Deposit Formation ◽  
New Model ◽  
Structural Context

Tables S1 and S2, a summary of all the relevant data from mineral deposits and active volcanic systems compiled for testing the model presented in this work.<br>

Sign in / Sign up

Export Citation Format

Share Document