Compres

 
earth's core
Original Drawing Created by Keelin Murphy
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compreslogotiny.jpg COMPRES, the Consortium for Materials Properties Research in Earth Sciences is a community-based consortium whose goal is to enable Earth Science researchers to conduct the next generation of high-pressure science on world-class equipment and facilities. It facilitates the operation of beam lines, the development of new technologies for high pressure research, and advocates for science and educational programs to the various funding agencies.

High Pressure Science at NSLS-II

3 COMPRES - Affiliated Proposals Awarded Type I Status for Beamline Development:

4-Dimensional Studies in Extreme Environments
Spokesperson: Donald J. Weidner
Time-resolved X-ray Diffraction and Spectroscopy under Extreme Conditions
Spokesperson: Alexander Goncharov
Frontier Synchrotrom Infrared Spectroscopy Beamline under Extreme Conditions
Spokesperson: Zhenxian Liu

Additional Information about the NSLS-II project  

 
Support

nsf1.jpgThis research was partially supported by COMPRES, the Consortium for Materials Properties Research in Earth Sciences under NSF Cooperative Agreement EAR 10-43050. 

 


Cell assemblies for reproducible multi-anvil experiments (the COMPRES assemblies)

leinenweberhilite2012.jpg

Injection-molded ceramic octahedra developed for the COMPRES multi-anvil cell assembly project. The octahedra range in size from 8 mm (left) to 25 mm (right), and are used for different pressure ranges and sample volumes. 


Kurt D. Leinenweber, James A. Tyburczy, Thomas G. Sharp, EmmanueL Soignard, Tamara Diedrich, William B. Petuskey, Yanbin Wang and Jed L. Mosenfelder
American Mineralogist, Volume 97, pages 353-368, 2012

Summary

American Mineralogist Article

posted April 9, 2012 

On the increase in thermal diffusivity caused by the perovskite to post-perovskite phase transition and its implications for mantle dynamics

Hunt, et al., 2012, EPSL,v. 319-320, p. 96-103

 

hunt_temps_sml.jpg

 

Non-dimensional temperature difference between simulations when thermal diffusivity of post-perovskite is doubled; red: hotter and blue: colder. Grey area shows the change in extent of the post-pervoskite lens when thepost-perovskite thermal diffusivity is twice that of perovskite.

Paper