Preservation and retrogression of ultra high pressure (UHP) rocks: case studies of UHP metagranitoids in Western Alps and Su-Lu region
スポンサーリンク
概要
- 論文の詳細を見る
The in situ association of ultra high pressure (UHP) rocks and country gneiss, and possible mechanisms to obliterate the UHP metamorphic minerals during exhumation will be discussed for giving a new insight to a debate between in situ vs. external origin of UHP rocks. The UHP rocks associated with UHP metagranitoids found in southern Dora Maira massif, western Alps and the Yangkou unit in the Su-Lu region, eastern China are distinct examples of the in situ origin. The deformation and accompanied fluid infiltration at lowpressure conditions pervasively erased the precursor UHP evidence without a significant heating in these areas. Granulite facies overprinting on UHP/HP metamorphic rocks is reported in some UHP terranes. Annealing at medium temperature and low-pressure conditions could be another candidate for obliterating the UHP metamorphic minerals pervasively.
- 国立極地研究所の論文
著者
-
Hirajima T
Department Of Geology And Mineralogy Graduate School Of Earth Science Kyoto University
-
Hirajima Takao
Department Of Geology And Mineralogy Division Of Earth And Planetary Sciences Graduate School Of Sci
関連論文
- The coexistence of jadeite and omphacite in an eclogite-facies metaquartz diorite from the southern Sesia Zone, Western Alps, Italy
- Sr-sulphate and associated minerals found from kyanite-bearing eclogite in the Moldanubian Zone of the Bohemian Massif, Czech Republic
- Pseudosection analysis for talc-Na pyroxene-bearing piemontite-quartz schist in the Sanbagawa Belt, Japan
- Analysis of Mn-bearing lawsonite occurring in meta-siliceous rocks in Hakoishi serpentinite melange of Kurosegawa Belt, Central Kyushu, Japan
- Pseudosection analysis for the Sanbagawa pelitic schist and its implication to the thermal structure of high-pressure intermediate type of metamorphism
- Chemical characteristics and trapping P-T conditions of fluid inclusions in quartz veins from the Sanbagawa metamorphic belt, SW Japan
- Preservation and retrogression of ultra high pressure (UHP) rocks: case studies of UHP metagranitoids in Western Alps and Su-Lu region
- Equilibration temperature of the Kobe meteorite
- Age determination of thorianite in phlogopite-bearing spinel-garnet peridotite in the Gfohl Unit, Moldanubian Zone of the Bohemian Massif
- An ultra-high-pressure metamorphic condition and isothermal decompression path obtained from a garnet-pyroxenite in the Horni Bory granulite of the Bohemian Massif
- Fluid inclusions with high Li/B ratio in a quartz vein from the Besshi area of the Sambagawa metamorphic belt : implications for deep geofluid evolution
- Effect of Jadeite-content on the Garnet-clinopyroxene Geothermometer for an Ultrahigh-pressure Eclogite Complex
- Preiswerkite and hogbomite within garnets of Aktyuz eclogite, Northern Tien Shan, Kyrgyzstan
- Finding of prehnite-pumpellyite facies metabasites from the Kurosegawa belt in Yatsushiro area, Kyushu, Japan
- Annular fluid inclusions from a quartz vein intercalated with metapelites from the Besshi area of the Sanbagawa belt, SW Japan
- Analysis of Mn-bearing lawsonite occurring in meta-siliceous rocks in Hakoishi serpentinite melange of Kurosegawa Belt, Central Kyushu, Japan
- Eclogitized Metagranitoid from the Su-Lu Ultra-High Pressure (UHP) Province, Eastern China.