- search hit 1 of 1
Continental crust at mantle depths - key minerals and microstructures
- Finding evidence for ultrahigh-pressure (UHP) metamorphism in crustal rocks is far from straightforward. The index minerals coesite and diamond are incredibly inconspicuous and are therefore difficult to use as UHP prospecting tools. Consequently, petrographers rely on recognizing subtle breakdown microstructures that result from pressure release during the return to the surface of the once deeply buried rock. Similarly, many other UHP minerals are first suspected on the basis of typical reaction or exsolution microstructures. Thus, the painstaking use of microscopic techniques has been fundamental to the tremendous advances in characterizing, quantifying, and understanding macroscopic-scale, deep continental subduction, rapid exhumation, and mountain-building processes.
| Author details: | Hans-Peter Schertl, Patrick O'BrienORCiD |
|---|---|
| DOI: | https://doi.org/10.2113/gselements.9.4.261 |
| ISSN: | 1811-5209 |
| ISSN: | 1811-5217 |
| Title of parent work (English): | Elements : an international magazine of mineralogy, geochemistry, and petrology |
| Publisher: | Mineralogical Society of America |
| Place of publishing: | Chantilly |
| Publication type: | Article |
| Language: | English |
| Year of first publication: | 2013 |
| Publication year: | 2013 |
| Release date: | 2017/03/26 |
| Tag: | coesite; exsolution microstructures; majorite; microdiamond; polymorphism; ultrahigh-pressure |
| Volume: | 9 |
| Issue: | 4 |
| Number of pages: | 6 |
| First page: | 261 |
| Last Page: | 266 |
| Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Geowissenschaften |
| Peer review: | Referiert |
| Institution name at the time of the publication: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Erd- und Umweltwissenschaften |
