21st General Meeting of the International Mineralogical Association

2014-09-01 - 08:00 - 2014-09-05
Gauteng, South Africa

DCO-related sessions and participation:

Mineralogy in the Deep Earth

Convenors: Dr. Catherine McCammon - IMA Subcommission on Physics of Minerals; Dr. Toru Inoue; Dr. Paola Comodi; Dr. Eiji Ohtani

The nature of minerals and related phases in Earth's interior and their response to changes in pressure, temperature and composition is fundamental to our understanding of properties and processes within Earth's interior, basically how Earth's engine works and how it may evolve in the future. This session will present a snapshot of current research, particularly focusing on experimental results of both natural and analogue phases that shed new light on our understanding of Earth's interior.


Mineralogical Co-Evolution of the Geosphere and Biosphere

Convenors: Prof. Robert Hazen; Dr Axel Hofmann; Robert Downs; Edward Grew

During the early stages of its history, Earth was physically and chemically very different from today. The planetary interior was hotter and magmatic and hydrothermal processes were widespread. The oceans and atmosphere were anoxic. Large impacts occurred frequently. It was under such conditions that life emerged and the Geosphere and Biosphere started to co-evolve.

Recent research reveals striking correlations among Earth's changing near-surface mineralogy and large-scale geological and biological events. Many aspects of Earth's major transitions, including changing properties of the oceans and atmosphere, shifts from vertical to lateral tectonics, the supercontinent cycle, and such biological innovations as photosynthesis, eukaryotes, multicellularity, skeletal biomineralization, and the rise of the terrestrial biosphere appear to be interdependent. In particular, the changing character of near-surface mineralogy (mineral evolution) and life (biological evolution) reveal striking examples of the co-dependent geosphere and biosphere.

This session will explore Earth's changing mineralogy through deep time, beginning with investigations on the most ancient terrestrial surface record, in particular by incorporating recent findings from the ICDP-funded Barberton drilling project "Peering into the cradle of life," as well as other studies of Archean formations. It will then explore co-dependences of the geosphere and biosphere throughout Earth history, form the rise of oxygenic photosynthesis and the Great Oxidation Event, through Proterozoic evolution of the oceans and atmosphere, through intertwined mineralogical and biological innovations of the Phanerozoic Eon.

Keynote Presenter: Patricia Dove


Calorimetry in the Geosciences: Theory, Experiment and Applications

Convenors: Dr. Klaus-Dieter Grevel; Dr. Artur Benisek

An understanding of the nature of thermodynamic properties is a prerequisite for calculating and analyzing mineralogical phase equilibria. Calorimetric measurements of a variety of types provide a fundamental source of thermodynamic data found in different compilations or contained in internally consistent thermodynamic databases. In this session we will focus on the development of various calorimetric methods during the last decade. Contributions about all areas of calorimetry applied in Earth and materials sciences are welcome, including studies on recent technical improvements.

Key Note Presenter 1: Prof. Alexandra Navrotsky: Progress in high-temperature calorimetry

Key Note Presenter 2: Prof. Edgar Dachs: Low-temperature heat capacity measurements using the Quantum Design PPMS


Plenary Presentation: Ultrahigh Pressure Mineralogy of the Continental Lithosphere

Prof. Nikolay Sobolev, Institute of Geology and Mineralogy, Russian Academy of Sciences, Siberia - IMA Medallist for Excellence in Mineralogical Research


Important deadlines:

15 January 2014 – Early Bird Registration closes

28 February 2014 – Call for Abstracts Closes

30 April 2014 – Abstract Submitters informed of outcome

Dates: 1-5 September 2014
Location: Gauteng, South Africa
Info: http://www.ima2014.co.za/


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