From Magma to Ore deposits: A new project on Central Chile

Published by geoexpedition_francisco on

On 2018 we started a research project granted from CONICYT (the Chilean national science foundation):  entitled ‘The role of shallow magma reservoirs during formation of giant ore deposits’.

The aim of this research is to  explore if shallow magma (melted rock) reservoirs emplacement can be laterally sourced from their deep big magmatic reservoir (batholitic) roots as tongues in the upper crust, with emphasis on their potential role in ore mining deposits formation.

 

 

We hypothesize that some shallow plutons (frozen granites) in Central Chile represents: (i) a vertical advective systems from middle-lower crust, or (ii) a mostly horizontal advective systems that intruded in the upper crust. Vertical advective systems are long-lived batholitic bodies, from where shallow plutons are sourced on time by using upper crust structures, and from where ore deposits are late sourced.

 

 

The case study that we plan to use is the San Francisco Batholith for the vertical system, and La Gloria, Cerro Mesón Alto, San Gabriel and Alfalfalito, for the horizontal plutons. Although these plutons are considered barren (without metallic concentration), a few Cu-mineralization surrounds them, and its chemistry and isotopic composition is similar to the batholith.

The main goal of this proposal is to determine whether shallow magma systems are emplaced vertically or horizontally, and its impact on magma compositional evolution and ore deposit formation.

 

 

Outreach: This project contemplates carrying out activities of the project to the society in which it explains its benefits, achievements and scope of its investigation, to the general public. They will be considered as video documentaries and Non-scientific seminars. Subscribe to our newsletter to know the news of our project.

 

Categories: Research

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