The following special issue is scheduled for publication in SE:
Analysis of deformation microstructures and mechanisms on all scales
07 Jul 2016–30 Apr 2017 | Guest editors: R. Heilbronner, R. Kilian, F. Fusseis, and I. Weikusat | Information
The physical properties and the rheological response of polycrystalline rocks of the cryosphere and lithosphere to pressure, temperature, stress, and strain are governed by their composition, microstructure, and texture. Microstructure and texture are particularly sensitive to deformation: particle shapes adapt to the imposed strain, and grain size reflects the flow stress and the size distribution the intensity of comminution; typical crystallographic preferred orientations develop as a result of strain or recrystallization processes, etc. The range of deformation processes and mechanisms can best be identified on the microscale, but will control the behaviour of the whole system. That is why microstructures provide valuable clues for the deciphering of the rocks' mechanical history or current physical state and for inferring active deformation processes in nature and experiments. Using microstructural evidence, naturally deformed rocks can be interpreted in the light of results gained from carefully designed experiments carried out under controlled conditions.
The proposed Special Volume welcomes (but is not limited to) contributions presented at the “Analysis of microstructure, texture and deformation mechanisms in nature and experiment” session at the EGU General Assembly 2016, and aims to present the current state of the art as well as future developments in the analysis of deformation microstructures, showcasing results from Earth and material scientists who use experiments, theory, and natural examples to study the physical properties of Earth's materials.
Two centuries of modelling across scales (SE/ESurf inter-journal SI)
01 Nov 2015–01 Nov 2017 | Guest editors: S. Buiter and A. Lang | Information
Two hundred years ago Sir James Hall provided an explanation for folded rocks at the east coast of Scotland by laterally pushing together pieces of cloth and clay in boxes. This demonstration laid the foundations for utilizing analogue models as a tool for better understanding geological processes and initiated the field of modelling in the Earth sciences. Since then models have become an integral part of many disciplines and are routinely used to gain insights into processes that defy observation, such as those that occur inside the Earth, over long timescales, and/or over large spatial regions. Models have proven to be invaluable for stimulating new ideas, testing hypotheses that would otherwise not be testable, as well as understanding fundamental processes and exploring them in a quantitative manner.
The special issue "Two centuries of modelling across scales" aims at bringing together review articles on modelling in the fields of tectonics, geomorphology, volcanology, rock physics, and geodynamics that emphasise historical developments and current highlights, or explore limitations and future challenges.