Very high-pressure orogenic garnet peridotites.
Mantle-derived garnet peridotites are a minor component in many very high-pressure metamorphic terranes that formed during continental subduction and collision. Some of these mantle rocks contain trace amounts of zircon and micrometer-sized inclusions. The constituent minerals exhibit pre- and postsubduction microstructures, including polymorphic transformation and mineral exsolution. Experimental, mineralogical, petrochemical, and geochronological characterizations using novel techniques with high spatial, temporal, and energy resolutions are resulting in unexpected discoveries of new phases, providing better constraints on deep mantle processes.
Liou
J G
JG
Department of Geological and Environmental Sciences, Stanford University, Stanford, CA 94305, USA.
Zhang
R Y
RY
Ernst
W G
WG
D018534:Earth, Planet; D055593:Geological Phenomena; D005844:Geology; D008903:Minerals; D049329:Nanostructures / Q000648:ultrastructure; D011312:Pressure
D008903:Minerals