E1.3-RENE Mineral and Energy Resources for Society
This Thematic Area involves the comprehensive study of the Andean system as a source of mineral and energy resources for society. We expect session proposals describing new advances in the understanding of mineral deposits and ore-forming processes, and topics integrating different methodologies applied to the identification of new mining or energy prospects. Proposals that include new challenges for the extraction of ores and hydrocarbons are also welcomed, including contributions from geostatistics, geometallurgy and geomechanics areas. The study of non-conventional renewable energy sources, in particular in geothermal energy, will have special relevance in this session.
Plenary Speaker: Dr. John F. H. Thompson View Profile
Convenors: Martin Reich, Osvaldo Rabbia.
Description: This session will receive abstracts related to Mineral and Energy Resources for Society that cannot be included in one of the specific sessions of this thematic area.
Convenors: Diego Morata, Linda Daniele.
Description: The Andean mountain range is the main geothermal resource worldwide that has not yet been satisfactorily exploited. This thematic session will address the research, exploration and exploitation advances that have been reached lately at Andean countries; in both high- and medium-enthalpy, and those related to direct use of geothermal energy. The session welcomes regional research work and those presenting the latest advances in relation to the exploitation of active geothermal systems, as well as novel methodologies regarding the direct use of geothermal energy in our Andean countries. It is expected that this session becomes an event to disseminate and discuss the different aspects related to geothermal energy and its impact on society, not only in Chile but in all the Andean countries.
Convenors: Osvaldo Rabbia, Brian Towley, Martin Reich, Fernando Barra.
Description: This session will be dedicated to review and discuss the sequence of relevant geological processes that at different scales lead to the formation of porphyry Cu (Mo-Au) systems and IOCG deposits in Andean subduction environments. The main focus will set on improving our present knowledge on genesis of these deposits, allowing fine tuning and/or development of new exploration and geological modeling criteria for these hydrothermal systems.
In this session we expect contributions related to topics going from lithospheric scale geodynamic mechanisms that trigger and control metalogenic fertility (Cu-Mo-Au) of the Andean margin, to petrology and geochemistry of intrusives related with mineralization, advances in characterization of hydrothermal alteration and mineralization of the entire system (porphyry to epithermal or IOCG related environments), to practical exploration applications derived from advancements in all topics.
Porphyry Cu (±Mo±Au) systems undoubtedly represent the "star" mineral deposits of the Andean margin, hence we expect a session with much participation, discussion and novelties.
Convenors: Fernanda Álvarez, Martin Reich.
Description: The growing demand for commodities necessary for the accelerated technological and energy development has generated an increasing worldwide interest. These elements are known as critical elements and their importance lies in two factors: the degree to which the commodity is essential for development, and the risk of the mineral’s supply restriction. Examples of these elements correspond to Au, PGE, Li, REEs, Y, Ta, Co, Ga, Te, Ti, W, among others. Therefore, understanding how the generating and concentrating processes of these elements operate at different spatial and temporal scales, through geological and geochemical proxies, is crucial for the scientific and economic development of the country. In this session, we welcome contributions related to the origin, transport and deposition of these elements in the mantle, crust and surficial environments.
Convenors: Daniel Moncada, Claudia Cannatelli, Jamie Buscher.
Description: Subduction zones deeply affect our society to our advantage and risk. While violent eruptions and earthquakes associated with subduction zones can lead to unpredictable death and destruction, most of the Earth’s ore deposits are formed in this geologic environment. Geological fluids rising from the mantle to the crust acquire, transport, degas and deposit metals. The release of these fluids and silicate melts from the down-going slab is associated with recycling of elements, generation of very hazardous volcanism, and formation of ore deposits. Numerous studies over the past half-century have described fluid and melt inclusions as the best repositories to track the evolution of these fluids. This session aims to bring together researchers that focus their studies on the application of fluid and melt inclusions to understand the nature and timescale of subduction zone magmatism, fluid-rock interaction, metal mobility and ore deposits formation. Multidisciplinary approaches that combine natural observations, laboratory experiments and theoretical and thermodynamic models are particularly encouraged.
Convenors: Pamela Pérez, Pablo Sánchez, Andrés Veloso, Daniele Tardani, Gerd Sielfeld.
Description: This thematic session tackles the dynamic interaction among faulting and migration of magmas and hydrothermal fluids. It is widely accepted that fault activation increases host rock permeability, favoring circulation and storage of magmas and fluids into the upper crust. Tectonic regime and its local stress-field compartmentalization play a key role in magmatic differentiation and hydrothermal fluids migration, controlling the development of geothermal reservoirs and ore deposits. This session will allow us to better understand these dynamic interactions, discussing new insights from natural examples of active (geothermal) and fossil (ore deposits) systems.
Convenors: Cicero Roberto Teixeira Régis, Marcos Welby Correa Silva.
Description: This session will cover the challenges involved in the application of geophysical methods to the exploration of natural resources (mineral deposits, hydrocarbon and geothermal reservoirs). Papers will be received that discuss theoretical aspects and particular case studies in which numerical methods are applied to the direct modeling and inversion of geophysical data. These problems have applications in all areas of exploration geophysics, particularly in mineral / oil exploration and environmental research. Of interest is the inversion of geophysical data, specifically electromagnetic, due to the impact that the increase of computational capacity is having in the greater scope of these methods, allowing to study geophysical problems more complex and realistic than in the past. This session will be a great opportunity to bring together the Latin American scientific community working on geophysical problems applied to the exploration of resources, and to promote greater integration and collaboration between different areas of geosciences.