News
European Geosciences Union
EGU 2010 conference sessions
Vienna, Austria, 02 - 07 May 2010
TS4.7/GD4.5/GMPV41
Evolution of the East African Rift System: Mantle - surface interactions
Convener: G. Rümpker
Co-Conveners: M. Hinderer, U. A. Glasmacher, D. Mertz
Link: http://meetingorganizer.copernicus.org/EGU2010/session/2620
Recent studies on the deep structure beneath East Africa show that dynamic processes in the mantle may influence rifting and climate change. We encourage submissions from a wide range of disciplines that deal with observations and numerical modeling in relation to the East Africa rift system. This session brings together geophysicists, petrologists, structural geologists, sedimentologists, geochemists, paleoclimatologists, climate and geodynamic modelers to discuss tectonics-climate interactions in a complex geologic setting.
GD4.2/TS5.5
South Atlantic Margin Processes and Links with Onshore Evolution
Convener: Dr. Glasmacher
Co-Conveners: H.-P. Bunge, M. Scheck-Wenderoth, R. Trumbull
Link: http://meetingorganizer.copernicus.org/EGU2010/session/2794
Passive continental margins are long-term and large-scale geo-archives of Earth processes related to mantle dynamics, the break-up of continents and the creation of sedimentary basins, changes in ocean circulation patterns and their effect on climate. Passive margins are also of paramount economic importance in terms of hydrocarbon resources. For this interdisciplinary session we seek contributions from natural case studies and from geodynamic or geomaterials modelling which address the interplay of deep mantle processes and their consequences on surface expressions in passive margin systems. The emphasis should be on the South Atlantic system. But exemplary case studies from other margin settings are also welcome. Some of the most important questions to be addressed are:
- How do mantle and surface processes interact during rifting, and during the post break-up evolution of the continental margins? And how does this influence onshore-offshore feed-back processes?
- What is origin of the extreme fluxes of magma in volcanic rifted margins like the South Atlantic? What is their role in continental rifting and lithospheric thinning? What impact do they have on the subsequent evolution of passive margins?
- To what degree is the formation and 4-D evolution of sedimentary basins, both on- and offshore, a function of uplift, erosion, sedimentation and diagenesis processes, and how is this evolution connected with mantle flow and global climate? How does rifting and continental separation modify ocean circulation patterns and what are the resulting global implications for biodiversity and climate change? The South Atlantic and its conjugate rifted margins are ideally suited to contribute answers to these questions. The session will try to tackle the complex interacting feedback cycles involving thermal and mechanical forces that acted over the ca. 200 million years since the beginning of break-up.
GM5.1
Long-term landscape evolution and interactions between tectonic and surface processes
Convener: J. Alvarez-Marron
Co-Conveners: Dr. Glasmacher, F. Stuart
Link: http://meetingorganizer.copernicus.org/EGU2010/session/3045
The understanding of the detailed coupling between tectonics and surface processes is fundamental for unravelling how mountainous landscapes develop and evolve. The response times and rates at which landscape processes occur may vary in relation to rates of tectonic interactions and settings, climate, and also due to inherited lithologies and structures at shallow crustal levels. This session is intended to have a multidisciplinary approach, and to integrate numerical, experimental and field research on tectonic/surface processes. We encourage contributions that explore comparisons between rates of tectonic processes and rates of surface processes during long-term landscape evolution in any geological scenario from fast to slow and moderately active tectonic settings. We are also keen to see studies that consider the interactions between denudation/erosion rates with lithology and inherited shallow crustal structures. We welcome contributions that integrate techniques to constrain both the timing and rates at intermediate to long time scale such as low-temperature thermochronology, cosmogenic nuclides or other techniques applicable.
GD4.3/TS5.4
Elevated, passive continental margins: timing and mechanisms of uplift
Convener: P. Japsen
Co-Conveners: H. Thybo, N. White, J. M. Bonow, U. A. Glasmacher
Link: http://meetingorganizer.copernicus.org/EGU2010/session/2538
Many passive continental margins around the world are characterized by an elevated plateau, often separated from an adjacent coastal plain by a pronounced escarpment; e.g. on both sides of the Atlantic, south-east Africa, western India and in eastern Australia. In many areas, e.g. Scandinavia, the timing and extent of uplift movements are difficult to determine because the uplifted area consists almost exclusively of ancient metamorphic rocks. However, during recent years evidence has been accumulating that a major component of the relief is of Neogene age. Some offshore sedimentary basins on the passive margins have been exhumed during the Neogene uplift (e.g. around the northern North Atlantic) and petroleum systems can be radically affected by this process. This symposium investigates the uplift history of the passive margins around the world and the mechanism behind these enigmatic movements -- the presentations will included studies based on geological, geomorphological as well as geophysical observations. Is the mechanism behind the uplift movements a patchwork of different effects, or is there a major underlying lithospheric paradigm behind passive margin uplift?
Ion Beam Physics
Ionenstrahlphysik-Workshop 2010 / Ion Beam Physics Workshop 2010, held at the Forschungszentrum Dresden-Rossendorf (FZD)
from 29th to 31st March 2010.
Detailed information can be found at www.fzd.de/ibp (in German and English).
The conference language will be English!
Synchrotronstrahlung, Neutronen und Ionenstrahlen (SNI 2010)
24.02 - 26.02.2010 Berlin
"Deutsche Tagung für Forschung mit Synchrotronstrahlung, Neutronen und Ionenstrahlen an Großgeräten (SNI2010)". http://www.helmholtz-berlin.de/events/sni2010/
Die Nutzung von Großgeräten zur Erforschung der kondensierten Materie hat in den letzten Jahren zu einer Vielzahl von herausragenden Forschungsergebnissen geführt. Experimente mit Neutronen, Synchrotron- und Ionenstrahlung bieten komplementäre Möglichkeiten, die Eigenschaften der Materie in all ihren Facetten auszuleuchten.
Die SNI 2010 bietet ein gemeinsames Forum für die Präsentation neuester Erkenntnisse, für den Ideenaustausch und die weitere Vernetzung der Methoden.
Die Themen umfassen folgende Schwerpunkte:
* Nanostrukturen und Grenzflächen
* Materialien und Werkstoffe
* Atome und Teilchen
* Methoden und Instrumente
* Struktur und Dynamik
* Magnetismus und Supraleitung
* Extreme Bedingungen
* Mikroskopie und Tomografie
* Biologie und Biochemie
* Chemische Prozesse
* Weiche Materialien
* Industrielle und medizinische Nutzung
Und in English
SNI 2010 <http://www.helmholtz-berlin.de/events/sni2010/index_en.html>
The SNI 2010 will provide an overview of condensed matter research at large scale facilities of the past years. Highlighting the complementarity of the methods used, the conference will boost the scientific exchange and offer a framework for a wide range of topics and interdisciplinary networking.
Main topics are:
* Nanostructures and Interfaces
* Materials
* Atoms and Particles
* Methods and Instrumentation
* Structure and Dynamics
* Magnetism and Superconductivity
* Matter under Extreme Conditions
* Microscopy and Tomography
* Biology und Biochemistry
* Chemical Processes
* Soft Matter
* Industrial and Medical Utilization
Field Campaigns
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Low-temperature thermochronology, uplift and exhumation history of the Rwenzori Mountains, Uganda – D.R. Congo.
The aim of the research project is to unravel the evolution of the bizarre high Rwenzori Mountains, by quantifying their thermal, uplift and exhumation history using low-temperature thermochronological dating techniques and thermokinematic modeling.
The Rwenzori Mts are located within the Albertine Rift, the northern part of the western branch of the East African Rift System, and stretch along the border of the D.R. Congo and Uganda. While in the beginning of the project research has concentrated on the eastern (Ugandan) part of the Albertine Rift and Rwenzori Mountains the study area has now moved further to the west. With additional focus of the project now placed on the D.R. Congo. A first field-campaign, covering the area from northern Lake Edward along the rift shoulder up to the Blue Mountains at Lake Albert, was conducted in summer 2009, in cooperation with the Ruwenzori State University of Butembo.
The presented project is part of the interdisciplinary research project RiftLink, funded by the German Research Foundation (DFG research unit 703). The RiftLink research group addresses rift dynamics, uplift, and climate change in Equatorial Africa, with the main concern placed on the Albertine Rift, and therein raising Rwenzori Mountains (www.riftlink.de).
http://www.riftlink.de/englisch/virtual_tour.htm#
– Low-temperature thermochronology, uplift and exhumation history of the Rwenzori Mountains, Uganda – D.R. Congo – Der Ostkongo ist eine Forschungsreise wert, RNZ 02/2010.
