Portal de Periódicos da CAPES

The Realm of Ultrahigh-Pressure Metamorphism

2013; Mineralogical Society of America; Volume: 9; Issue: 4 Linguagem: Inglês

10.2113/gselements.9.4.255

1811-5217

Jane A. Gilotti,

earthquake and tectonic studies

Research Article| August 01, 2013 The Realm of Ultrahigh-Pressure Metamorphism Jane A. Gilotti Jane A. Gilotti *Department of Earth and Environmental Sciences, The University of Iowa, 121 Trowbridge Hall, Iowa City, IA 52242, USAE-mail: jane-gilotti@uiowa.edu Search for other works by this author on: GSW Google Scholar Author and Article Information Jane A. Gilotti *Department of Earth and Environmental Sciences, The University of Iowa, 121 Trowbridge Hall, Iowa City, IA 52242, USAE-mail: jane-gilotti@uiowa.edu Publisher: Mineralogical Society of America First Online: 09 Mar 2017 Online ISSN: 1811-5217 Print ISSN: 1811-5209 © 2013 by the Mineralogical Society of America Elements (2013) 9 (4): 255–260. https://doi.org/10.2113/gselements.9.4.255 Article history First Online: 09 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Jane A. Gilotti; The Realm of Ultrahigh-Pressure Metamorphism. Elements 2013;; 9 (4): 255–260. doi: https://doi.org/10.2113/gselements.9.4.255 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyElements Search Advanced Search Abstract The discovery of diamond and coesite in crustal rocks is compelling evidence that continental material has experienced pressures that can only be achieved at mantle depths. At least 20 terranes of unequivocal continental crust containing diamond or coesite are now recognized around the globe; their study constitutes a new field in petrology called ultrahigh-pressure metamorphism. The idea that continents do not subduct has given way to the notion that Earth has been sufficiently cool since the Cryogenian (~850 Ma) to allow density changes to drive continental crust into the mantle during collision. Some of this crust is exhumed to the surface, some pools at the Moho, and the rest sinks into the mantle. In this issue, microscopic observations, phase-equilibrium modeling, geochronology, and geodynamic modeling track the journey of crustal rocks to the mantle and back to Earth's surface. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.