Aktivitäten

Vom 13.-18. August 2017 findet in Paris die Goldschmidt Konferenz statt (https://goldschmidt.info/2017/).

Abstract Deadline: 1. April 2017

Sessions mit mineralogischem Bezug:

Session 07g: Pedogenic Minerals and the Biogeochemical Cycles of Major and Trace Elements

Weathering of rock during pedogenesis results in the formation of a wide range of secondary soil minerals such as metal (oxyhydr)oxides and phyllosilicates. These phases typically are of nano- to micronscale dimension, have large specific surface areas, and are highly reactive. Consequently, pedogenic minerals interact strongly with other soil constituents. The nature and extent of these interactions varies among different soil ecosystems and in time and space. Their reactivity makes pedogenic minerals determinants and key players in the biogeochemical cycling of elements. For instance, pedogenic minerals may act as sources and sinks of elements and control related transformation processes. We invite contributions that involve both laboratory and field experiments dedicated to the formation, structure, and properties of pedogenic minerals with special emphasis on their interactions with major and trace compounds. Particularly, we welcome studies using state-of-the-art spectrometric, spectroscopic, imaging, and theoretical approaches to address these interactions at the molecular scale.

 

08f: Reactions at the Mineral-Fluid and Mineral-Organic Interfaces: From Molecular Mechanisms to Macroscopic Observations

Reactions that occur at the mineral–fluid interface are central to all geochemical as well as many industrial processes and they affect a wide range of important Earth processes. Examples include metamorphism and metasomatism, weathering and soil formation, nutrient availability, biomineralization, acid mine drainage, the fate of contaminants and possible remediation strategies, nuclear waste disposal, minor element incorporation and their partitioning during mineral growth, and scale formation. This session welcomes wide-interest contributions from researchers using either experimental or computational approaches, as well as their combination, aimed at gaining an understanding of mineral-fluid and mineral-organic surface reactivity. The possible processes covered include but are not limited to dissolution, precipitation, incorporation, surface diffusion and adsorption/desorption reactions studied at different scales. The session’s goal is to decipher reaction-controlling mechanisms, from molecular interactions depending on the chemical composition of the fluid and/or the presence of organic molecules, to structural complexity and variance of naturally occurring mineral surfaces at the rock pore scale.

 

11c: Organo-Mineral Associations in Soils and Sediments

Organic matter plays a key role in biogeochemical processes in soils and sediments through its interactions with minerals, and associated formation of physical structures providing the habitats sustaining microbial communities. This session will explore the mechanisms of soil and sedimentary organic matter association with the mineral phase at different spatial and temporal scales. Special emphasis will be put on the role of different soil weathering and redox environments and the resulting mineral assemblage for binding of organic matter and interaction with microbial necromass and exudates. We invite contributions with emergent analytical tools to provide novel insights on organic matter-mineral interactions and their impact on the fate of organic matter in soils and sediments. Potential topics include (but are not limited to): 2D and 3D fine scale investigations on organic-mineral interactions, biomarkers and molecular composition of mineral-associated organic matter in soils and sediments, and organic matter turnover examined by isotopic tracing experiments, radiocarbon and component-specific isotope analyses.

 

Vom 18. bis 19. September 2017 findet in Karlsruhe die Herbstschule "Autumn School Moisture Measurement in Porous Mineral Materials" statt. Das Programm finden Sie unter http://www.cmm.kit.edu/img/RZ_Flyer_Herbstschule_17_e.pdf

Weitere Details auf der Seite des KIT (http://www.cmm.kit.edu/62.php)

Anmeldeschluss ist der 31. Mai 2017.

 

Vom 9. bis 13. März 2015 findet in Karlsruhe am KIT Campus Nord der nunmehr 6. internationale DTTG-Workshop "Qualitative und quantitative Analyse von Tonen und Tonmineralen" statt.

Im Workshop behandelte Themen sind verschiedene Aspekte der XRD-Analyse von Tonen incl. der quantitativen Phasenbestimmung mittels Rietveldanalyse, die Bestimmung physikochemischer Eigenschaften von Tonmineralen (KAK, Ladung, Oberfläche), die Anwendung der thermischen Analyse, sowie Aspekte der Sorption und der Elektronenmikroskopie.

Die offizielle Workshopsprache ist Englisch.
 

The workshop focuses on the needs of graduate students and PhD students in the field of clay science. The workshop is also open for scientists and people working in industry who are interested in clay science. The workshop will consist of theoretical lectures and a high portion of laboratory exercises. Therefore, the number of participants is limited to 15 persons.
The fees include workshop material, coffee breaks, and workshop dinner and amounts for:

  Students

Euro 300

  Scientists (Universities or Governmental Organizations) 

Euro 600

  Industry

Euro 1100

Members of DTTG or DBG receive a reduction of 20% of the full fees.

You are asked to submit your application by e-mail with a short description of your field of work, status (student etc.) together with a short essay about your motivation to participate in the workshop. Confirmation and detailed information to the program, travel etc. will be sent after registration deadline. Registration deadline is the 30 October 2014.

 

Link: http://www.dttg.ethz.ch/workshop2015.html