Coordinators: Augusto Mendonça (Banco Mundial), Fabio Augusto da Silva Salvador (PF), Joana Sanchez (UFG), Maria da Gloria Garcia (USP), Paola Barbosa (UnB), Romulo Simões Angélica (UFPA), Welitom Rodrigues Borges (UnB)
The theme Geosciences for Society relates the importance of geosciences for public policy development related to renewable and non-renewable geological resources, environmental issues related to the use and management of these resources, and the role of geosciences in global environmental issues. The areas of geomedicine and forensic geosciences are also focused on this theme due to the increasing importance of these fields for society. Discussions will also take place about the use of geological materials in human history.
Subtheme 1- Geodiversity, Geological Heritage, and Geoconservation
Coordinadors: Joana Sanchez (UFG), Maria da Gloria Garcia (USP)
As an emerging field of geosciences, which deals with recognition, conservation and promotion of relevant elements of geodiversity for this and future generations, this thematic session invites the discussion of the following topics:
Subtheme 2 – Building stone and cultural heritage
Coordinator: Joana Sanchez (UFG), Maria da Gloria Garcia (USP)
Stone is a building material par excellence, and its use was so important that it is prominent in the names of periods of human civilization. Geosciences have much to contribute to the preservation of stone-built monuments and buildings. This section welcomes discussions addressing:
Subtheme 3 – Forensic Geosciences
Coordinators: Welitom Rodrigues Borges (UnB), Fabio Augusto da Silva Salvador (PF)
The inclusion of the Forensic Geosciences theme in the Geoscience for Society session aims to attract researchers and experts interested in the dissemination of research results that illustrate the contribution of geosciences to forensic investigations.
Within this subtheme, abstracts can be submitted for the following topics:
Subtheme 4 – Geomedicine
Coordinator: Romulo Simões Angélica (UFPA)
In the geomedicine session, debates on the contribution of this area to the management of public health policies are expected.
This subtheme is awaiting presentations on:
Subtheme 5 – Mineral Economics
Coordinator: Augusto Mendonça (Banco Mundial)
The knowledge of the geological characteristics and mineral assets of a region or country is fundamental to the formulation of public policies that promote sustainable development.
The Geosciences for Society session aims to discuss the importance of geological knowledge and the availability of mineral resources for public policy formulation. Technical papers addressing the experiences from mining regions and municipalities may illustrate the diverse economic and social implications of geosciences for society.
Topics such as policies for the promotion – or restriction – of mineral production, forms of taxation, distribution of tax revenues, utilization of mining revenues, affected groups, and mineral property concession regimes are topics of interest within this session.
Subtheme 6 – Minerals, Rocks and Industry
Coordinator: Paola Ferreira Barbosa (UnB)
The Session on HISTORY AND DIFFUSION OF GEOCIENCES, at the 50th Brazilian Congress of Geology (BCG), provides an opportunity to disseminate selected communications on History, Diffusion, Education, and Teaching of Geosciences. Brazil is lacking in professionals qualified to work in the Earth Sciences. Nevertheless, the national educational scientific production is growing fast, as documented by national and international events, and contributions to scientific journals. More than 400 contributions were presented at four successive scientific meetings. Campinas (SP) held the National Symposium on Teaching and History of Earth Sciences, as well as EnsinoGEO 2018 (July) and EnsinoGEO 2019 (October 2019), and the “VIII GeoSciEd 2018 – 8th International Conference on Geoscience Education”. More than a hundred contributions were presented at the last Symposium on Teaching and Education in Geosciences, during the 49th BCG, in Rio de Janeiro in August 2018.
Attendees of the Technical-Scientific Session on GEOCIENCES HISTORY AND DIFFUSION at the 50th BCG are invited to expose state-of-the-art Earth Science history, education, and diffusion in Brazil, offering original reports, experiments, and contributions. There are currently some ethical issues and critical challenges regarding the relationship of Brazilian society with the Earth, as well as with life and the environment. The session will focus on issues related to training of geologists and other professionals, in parallel with the problem of teacher education and support for the work of teachers, who find it difficult to understand the processes of Earth Systems and transmit concepts to their students, as well as throughout the Brazilian historical process. Actions of scientific diffusion should be valued, and such contributions would be welcomed for building new channels of communication with society.
Diffusion of Geosciences in the elementary school allows to attract talents to undergraduate Earth Sciences and, later, to graduate programs. The training cycle for creative professionals is only completed by the training of new staff of teachers and specialists. Qualitative and quantitative data are vital to address the complex demand for water, metals, energy resources, fertile soil conservation, environmental preservation, and understanding of climate change. It is urgent to broaden and deepen the teaching of informatics, mathematics, physics and chemistry, and their applications in mineralogy, petrology, geophysics, geochemistry, mineral exploration, and other disciplines, so that future Geoscience professionals can face the increasing complexity and sophistication of the future world. In different ways, geologists and other Earth Science professionals have called for the inclusion of Earth Science content in basic education, a possibility enhanced by the Common National Curriculum Base (BNCC). Fields connecting with “History and Diffusion of Geosciences” are of great interest, such as Geoethics, Geopolitics, Geoconservation, Geopatrimony, Geodivulgation, Geotourism and Teaching about Planetary Geology.
Geological Risk, Engineering Geology, and Geotechnics at the 50th Brazilian Congress of Geology will receive technical-scientific texts related to the following topics: geological risks and natural disasters arising from hazardous events from natural, anthropogenic, natural-technological (NATEC) and quasi-natural sources; application of aspects of engineering geology applied to dams for different purposes, tunnels, linear and infra-structure works, ports, airports, etc., in particular to the development of methods and procedures related to risk assessment related to these works in their practical and scientific view points, studies that generate information that guide the urban and rural territorial planning, as well as the proposition of interventions in large urbanized areas (metropolitan areas), considering all aspects related to the potentialities and weaknesses of the environment. In addition to these topics, historical cases and problem studies on the themes of the session are appreciated.
This thematic session aims to discuss the water resources and their interaction with the hydrosphere and society, including surface and groundwater, dynamics and modeling of continental and coastal ecosystems, and its sustainability in a constantly changing society. The main issues are associated with the characterization and management of water and environmental resources, including i) exploitation, ii) contamination, iii) sustainability, iv) integrated and conjunctive uses, v) global climate change, vi) natural and human-made disasters, vii) urban geology, viii) solid and effluent waste disposal, among others.
The coordination of this thematic section should favor the most prominent contributions and propose a dynamic in which the most relevant works will be presented in oral sessions. Contributions that present unpublished data, innovative approaches, original methods, and cutting edge applications will be prioritized in the analysis of the merit.
Thus, we invite researchers, professionals, and students to participate in the 50th Brazilian Congress of Geology, in the session Water Resources and Environmental Geosciences, which is one of the most challenging and relevant areas for Anthropocene society!
The aim of this session is to gather the scientific community to prompt the debate and share the knowledge, about environmental and climatic changes in the geological past. These topics are of primary importance for developing a sustainable planet, as they allow identifying the factors controlling the natural systems and their response in space and time at different scales. We invite the scientific community to submit contributions focused on paleoenvironmental and paleoclimatic reconstructions from a variety of geological archives (i.e., sediment and ice cores, speleothems, corals, tree rings, and outcrops), as well as quantitative simulations. Alongside addressing specific time intervals (i.e., Quaternary, Cenozoic, Precambrian) we want to stimulate a broad discussion that can provide important insights into the environmental and climatic changes in the geological past and contribute to the assessment of possible future scenarios.
The scientific study of planetary materials – be they terrestrial or lunar rocks, meteorites, cosmic dust, or cometary particles, planetary remote sensing and geophysical data, as well as the study of impact structures and impact ejecta beds, have brought essential knowledge about the evolution and history of our solar system, its planets, asteroids, and comets, and life on our planet. In this Planetary Science session, all these aspects – as well as advances in astrobiology – will be discussed. In all likelihood, taking into account that Brazil holds the majority of confirmed impact structures in South America, this session will have a strong focus on impact cratering studies, which are pursued at geoscience departments at a number of Brazilian universities. Meteorite investigations have also been a legacy at several Brazilian institutions, and micrometeorite/cosmic dust analysis has been performed as well. International participation in this session is actively sought by the conveners.
This session aims to gather the most recent advances in geodynamic processes and their geological record. The main themes included are orogeny and orogenic systems, continental rifting, strike-slip faults and shear zones, and the nature of strain accommodation within the continental lithosphere. We invite contributions that cover the association between micro- to mesoscale structures and large-scale deformation in a broad tectonic aspect. Studies that focus on the relationships between tectonics and sedimentation, metamorphism and magmatism are welcomed, as well as more specific approaches based on rock rheology and lithosphere dynamics. We aim to contribute to a better understanding of the fundamental aspects of geodynamic processes and their connections with micro-, meso- and macroscale geological processes.
Understanding the geodynamic evolution of early Earth is a challenge for the scientific community. Geological, geochemical and geochronological records have demonstrated significant changes in atmospheric conditions and tectonic processes since the Hadean. This has supported the discussion of the early Earth’s tectonic style, its primordial composition, and the transition to recent tectonics, with subduction of oceanic crust and the influence of the deep mantle on the evolution of the atmosphere, hydrosphere and terrestrial biosphere since 4.0 Ga. This session of the 50th Brazilian Congress of Geology will cover the Hadean and Archean eons and will address the following topics: tectonic processes of primitive Earth and their role in the initial formation of the continents; development of oceans, atmosphere and biosphere; magmatism and paleogeographic reconstruction of the volcano-sedimentary sequences; and the Archean-Proterozoic transition.
The session on Paleo/Mesoproterozoic Evolution and Dynamics aims at discussing knowledge advances on paleo-plate breakup, dispersion and amalgamation processes, sedimentary and volcanic-sedimentary basin generation, and the evolution of atmospheric oxygen and life during the Paleoproterozoic and Mesoproterozoic eras in the South American Platform. Propositions of more adequate names of Paleoproterozoic orogenic events (e.g., Transamazonian) in the Brazilian shield, as well as comparative studies correlating the São Francisco and North China cratons will also be part of the session.
The amalgamation to break-up “puzzle” involving the Rodinia and Gondwana supercontinents has reconfigured most of present-day South America, presenting examples of basin fills, including divergent and convergent processes, as well as growth and reworking of ocean lithosphere preceded by continental rifting, and succeeded by plate margin orogenies and their intracontinental reflexes. This session invites contributions focusing on processes and products related to amalgamations and break-ups of paleocontinental blocks related to the Rodinia and Gondwana supercontinents, including related evolutions of sedimentary basins, continental passive and active margins, and ocean-floor spreading and subduction, with consequent generation of magmatic arcs and associated orogenic basins. This will include the multiple collisional to post-collision episodes that resulted in the intricate framework of Brasiliano orogenic belts and their role in West Gondwana amalgamation. In this scenario, the relationship between life and paleocontinental dynamics through time, as well as paleomagnetic data are also important topics to be addressed.
The geology of sedimentary basins of the Brazilian continental margin is multifold because of the complex geological evolution initiated during the Mesozoic. The geological events that led to the fragmentation of Gondwana and the opening of the South Atlantic Ocean also originated sedimentary basins and reconfigured the landscape of the continent. These basins are of great importance to the Brazilian economy, as they provide mineral, water, and energy resources, especially the huge hydrocarbon reserves. This thematic section is aimed at the discussion of different aspects of the evolution of the Meso/Cenozoic marginal and continental basins, with expected contributions on tectonics and sedimentation, structural geology and magmatism, stratigraphy and sedimentology, carbonate and siliciclastic depositional systems, sedimentary provenance and paleogeography, petrology and diagenesis, and biostratigraphy and paleontology.
In this session, we invite contributions related to Stratigraphy, Paleontology, Sedimentology, Geochemistry, Structural and Geotectonic Geology, Magmatism, Geophysics and Petroleum Geology related to this unique interval of geological time. The Paleozoic Era stands out for the great diversity of events along its course that drastically changed the lithosphere and biosphere. We may highlight meaningful global changes in the South American plate domain with a long and complex evolutionary history, in which thick sedimentary sequences were accumulated. The history of eustatic fluctuation records several cycles with hundreds of meters of oscillation, major glaciation events, global anoxic events, orogenic events, and at least three major extinctions, as well as relevant life events, such as dry colonization and evolution of associated life.
This thematic session aims to gather studies on the geological processes and products that occurred in the last tens of millions of years. It addresses the modifications of the Earth’s surface during the Cenozoic related to the evolution of different environments, including aspects of human occupation and interference in environmental dynamics. It seeks to approach concepts and their applications in relation to landscape evolution/geomorphology; the geochemistry of surface environments; weathering and lateritization processes; paleoclimatic and paleoenvironmental records; to karst terrains; the knowledge of Quaternary geology and geomorphology; neotectonic and morphotectonic processes and records; and human interference in the construction or modification of the landscape (Anthropocene).
The marine and ocean system is the base of multiple natural processes and represents a fundamental component of Planet Earth, especially for its climatic balance. The ability of observing and monitoring the marine and oceanic environments has been continuously developed, allowing the comprehension of these systems at different spatial and temporal scales. Understanding how the marine and ocean system works is of primary importance for assessing the influence of human activities on the planet, to improve the simulations of possible future scenarios, and plan development strategies based on sustainable energy sources. The goal of this session is to gather contributions of advanced scientific works in marine geology and oceanography, in order to create an interdisciplinary forum for sharing knowledge and prompting the discussion among scientists and professionals from different areas of the marine sciences.
This session will cover the most recent advances to understanding and map mineral systems, as well as the analysis of prospectivity and fertilty focusing on multi-commodity exploration. The main themes included are: 1) Geodynamic of Mineral Systems using geophysical and isotopic data; 2) Ore-forming processes; 3) Characterization of footprints using geophysical, geochemical, petrophysical an mineral mapping; 4) Multisource Data Integration using expert systems, machine learning or artificial inteligence.
Oil and gas exploration are still the main activities that supply global energy demand, including the Brazilian energy matrix. In this session both industry real cases and academic research will be presented. Topics will include the elements and processes of conventional and unconventional accumulations, such as: i) organic and isotope geochemistry of reservoirs, ii) geochronology and paleoenvironment of source rocks, carrier beds and seals, iii) frontier exploration cases in Brazilian Paleozoic basins, Pre-salt and world-wide, and iv) the activity status of onshore and offshore Brazilian mature basins.
Magma generation has played a key role in the geochemical evolution of both mantle and crust throughout Earth history. Similarly, magma generation is, to a large extent, a direct result of tectonic processes taking place in our planet, which cause magmas to display geochemical characteristics specific to the different tectonic settings where they are formed. This allows to understand the geodynamics of Earth’s past based on the recognition of characteristics of rocks crystallized from such diverse magmas. Understanding of magmas and their formation processes is also essential to the study and prediction of metallogenic associations that allow formulation of accurate prospecting models aimed at the discovery of new mineral deposits.
Within the Magmatism and Petrogenetic Processes session works on several different topics will be welcome, such as granites in diverse tectonic settings, mafic-ultramafic layered intrusions, carbonatite complexes, typical magmatism of different tectonic settings, connections between plutonic and volcanic processes, mineralogy and igneous petrology applied to magma petrogenesis, and influence of petrogenetic processes on the metallogenic potential of igneous provinces.
This session will focus on recent advances in the fields of remote sensing, geostatistics, and spatial modeling, particularly in multi-scale data gathering. This includes laboratory, field, airborne and orbital measurements; processing and information extraction techniques; computational development; geodatabases; statistical and spatial analysis methods; data integration and interpretation; machine learning approaches; and numerical modeling. Applications related to the extraction of geological information at crystallographic, compositional and structural levels are within the session scope. Work on data and advanced methods for environmental monitoring are also welcome.
Keywords: remote sensing applied to geology, hyperspectral remote sensing, spectroscopy, data integration and analysis, geological database, numerical and spatial modeling, machine learning and deep learning.
Geophysics is a science that is applied to several areas of geology, either as a fundamental or auxiliary tool. The Geophysics thematic session aims at reaching a diverse and large number of areas in this field to promote interaction and high-level discussions on various topics ranging from basic to applied geophysics.
Therefore, we invite colleagues to submit works from all areas of geophysics ranging from tectonic studies, lithosphere, crust, and mantle to sedimentary basins, mineral deposits, dams, forensics, hydrogeology, and environmental science. Works on modeling and inversion, and machine learning techniques using geophysical data are also welcome.
Currently, seismology has become very popular due to recent investments and the installation of the Brazilian Seismographic Network, so that submission of contributions from this area is also strongly encouraged.