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Plagioclase from
Eclogite outcrop, Wumiao, Yuexi County, Anqing, Anhui, China


Locality type:Outcrop
Classification
Species:'Plagioclase' (not an IMA approved species)
Formula:(Na,Ca)[(Si,Al)AlSi2]O8
Comments:Replaces garnet.
Symplectic kelyphitic coronas after omphacite around garnet.
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Plagioclase data
Locality Data:Click here to view Eclogite outcrop, Wumiao, Yuexi County, Anqing, Anhui, China
Data Identifiers
Mindat Occurrence Record ID:309812
Long-form Identifier:1:3:309812:7
GUID (UUID V4):dc853e90-c7d9-4731-a8bc-e998d167aae3
References
Reference Search (possible matching items)
Journal (article/letter/editorial)
facies retrograde metamorphism of the Zhujiachong eclogite, SE Dabieshan: 40Ar ⁄ 39Ar age constraints from...Guangzhou, China (qiuhn@gig.ac.cn) 2 Key Laboratory of Tectonics and Petroleum Resources (China University...Geosciences, Wuhan), Ministry of Education, 430074 Wuhan, China 3 Department of Isotope Geochemistry, VU University...Amsterdam, The Netherlands ABSTRACT The Zhujiachong eclogite in the south-eastern Dabieshan ultra-high-P terrane...garnet-amphibolite mineral assemblages in most rocks in the outcrop. This study is focused on providing age constraints
Journal (article/letter/editorial)
pressure eclogites in the Dabieshan of central China D.A. Carswell a a,) , R.N. Wilson b, M. Zhai ...Academia Sinica, P.O. Box 634, Beijing 100029, China Abstract As is typical of ultra-high pressure ŽUHP...of the UHP terrain in the Dabieshan of central China is highly speculative, since the volume of eclogites...for the interpretation of controversial gneiss–eclogite relationships in other UHP metamorphic terrains...collisional Qinling–Dabieshan orogen in east–central China Žcf. Wang et al., 1991; Carswell et al., 1993, 1997;
Journal (article/letter/editorial)
University of Science and Technology of China, Hefei 230026, China b MOE Key Laboratory of Continental Dynamics...of Geology, Northwest University, Xiʼan 710069, China State Key Laboratory of Lithosphere Evolution, Institute...Geophysics, Chinese Academy of Sciences, Beijing 100029, China Received 11 November 2004; received in revised form...Mesozoic granites and gneisses in the Dabie orogen of China allows us to evaluate the thermal effect of magma...University of Science and Technology of China, Hefei 230026, China. E-mail address: yfzheng@ustc.edu.cn
Journal (article/letter/editorial)
Technology, Hefei 230009, China Geological Survey of Anhui Province, Hefei 230001, China Correspondence: yf_hfut@163...towards the adoption of intelligent methods in China. Cognitive intelligence methods, such as those based...digital geological survey has been published for China, and a cognitive geological survey is also under...Dabie-Sulu orogenic belt in central and eastern China (Figure 6a) was selected for the empirical research...to 2016, the Institute of Geological Survey of Anhui province carried out a digital geological and mineral
Journal (article/letter/editorial)
University of Science and Technology of China, Hefei, 230026 China d Geowissenschaftliches Zentrum Göttingen...Keywords: Lu–Hf geochronology Sm–Nd geochronology eclogite ultrahigh-pressure eclogitisation A B S T R A...The Qinling–Dabie–Sulu orogenic belt in eastern China is one of the largest ultrahigh-pressure (UHP) terranes...metamorphism) and the wide variety of garnet and eclogite chemical compositions represented. Two samples...Zheng et al., 2005): (1) a peak ultrahigh-pressure eclogite facies imprint in the coesite/diamond stability
Journal (article/letter/editorial)
S0016-7037(00)00801-8 Oxygen isotope equilibrium between eclogite minerals and its constraints on mineral Sm-Nd...University of Science and Technology of China, Hefei 230026, PR China (Received April 25, 2001; accepted in...pressure eclogites from the Sulu terrane in eastern China. The results show a direct correspondence in equilibrium...systems of eclogite minerals. The omphacite– garnet pairs of oxygen isotope equilibrium at eclogite-facies...pairs. The presence or absence of fluid in the eclogite protoliths is a major rate-controlling factor
Journal (article/letter/editorial)
isotope anomaly near Donghai in Jiangsu Province, China DOUGLAS RUMBLE,*,1 and T.-F. YUI2 1 Geophysical...both d18O and dD. Grnets from coesite-bearing eclogite are as low as 211‰ (VSMOW) and rutiles are 215‰...were all subjected to metamorphism in the coesite-eclogite facies. Oxygen isotope fractionation between quartz...discovery of low 18O values at the First International Eclogite Workshop, Stanford University, in 1994 (Yui et...their ephemeral existence as a world’s record for eclogite, however. The isotopic geochemistry of Qinglongshan
Journal (article/letter/editorial)
Relationship between Eclogite and Copper-Nickel Mineralization in East Kunlun, China Yong Zhang 1 , Tong...Relationship between Eclogite and Copper-Nickel Mineralization in East Kunlun, China. Minerals 2023, 13...Exploration Institute of Qinghai Province, Xining 810029, China Bureau of Geology and Mineral Exploration and Development...Xining 810001, China College of Earth Sciences, Jilin University, Changchun 130061, China Qinghai Geological...Geological Survey Institute, Xining 810012, China Correspondence: pant66@163.com (T.P.); qhskyzak@163.com
Journal (article/letter/editorial)
Discovery of Early Paleozoic eclogite from the East Kunlun, Western China and its tectonic significance...of Geological Sciences (CAGS), Beijing 100037, China a r t i c l e i n f o Article history: Received...June 2012 Handling Editor: Z. Zhang Keywords: Eclogite Geochronology Early Paleozoic HP metamorphism...eastern part of the East Kunlun Mountains, Western China, are primarily composed of garnet+omphacite+quartz+rutile...the inherited magmatic zircons from fine-grained eclogite reveals a Neoproterozoic age of 934 Ma, representing
Journal (article/letter/editorial)
13 February 2009 Editor: R.W. Carlson Keywords: eclogite high-pressure granulite clockwise P–T path Imjingang...augite, amphibole, orthopyroxene, ilmenite and plagioclase and by a similar high-pressure assemblage with...structural styles with those of the Sulu belt (China) strongly suggests the existence of a Permo-Triassic...belt between the Sino-Korean (North China) and Yangtze (South China) blocks, and further east to Korea...absence of precise evidence of collision (e.g., eclogite and high-pressure rocks) as well as a general
Journal (article/letter/editorial)
indicate that distinct mantle sources existed for the eclogite protoliths 1.3 Ma ago, and that enrichment in...structural development. The sporadic occurrence of eclogite outcrops throughout these complexes is a notable...f 11 Ma; Paquette et al., 1984). Moreover, one eclogite (La Richaudais) has been recently dated, yielding...yielding an age of ,413 f 16 Ma for the eclogite-facies metamorphism and an age of 2208 ?r 39 Ma for its...(Paquette et al., 1985). In the present study, one eclogite and three metagabbros were sampled from two different
Journal (article/letter/editorial)
Eclogites from the South Dabie Orogen, Central China: an Insight from Phase Equilibria Modelling C....Space Sciences, Peking University, Beijing 100871, China Short title: MT-UHP Eclogites from south Dabie...porphyroblasts and kyanite-bearing quartz veins in eclogite. As lawsonite dehydration can facilitate evolution...dominated by formation of hornblendic amphibole and plagioclase with fluid infiltration. The lawsonite-absent...rights reserved. Accepted Article Keywords: UHP eclogite; phase equilibria; P–T path; Dabie orogen. INTRODUCTION
Journal (article/letter/editorial)
metamorphic belt, East China. Eclogite, gneiss, amphibolite (retrograded from eclogite), ultramafic rocks,...amphibole, plagioclase, and biotite from various rocks in the depth range of 0–3,000 m (mainly eclogite and...Sciencies, Baiwanzhuang Road 26, 100037 Beijing, China cal sections favour an ‘‘in situ’’ origin of the...worldwide, the Dabie-Sulu metamorphic belt in East China has attracted extensive interest from the geoscience...an UHP terrain. Studies of layered rocks at the outcrop scale have demonstrated the important control of
Journal (article/letter/editorial)
in Austria Petrologic Constraints for Eoalpine Eclogite Facies Metamorphism in the Austroalpine Otztal...retrograde reaction products. Retrogression of the eclogite parageneses reflecting decreasing pressure and...conditions are: Symplectites of diopside and plagioclase after omphacite, AI- and Na-poor green amphiboles...atoll textures and symplectites of biotite and plagioclase replacing phengite. Continuation of retrogression...Minimum pressure and temperature conditions of the eclogite stage derived from Jd-content in omphacite and
Journal (article/letter/editorial)
Manuscript Continental origin of the Gubaoquan eclogite and implications for evolution of the Beishan...Beishan Orogen, Central Asian Orogenic Belt, NW China Wanchese M. Saktura, Solomon Buckman, Allen P. Nutman...Aitchison , Continental origin of the Gubaoquan eclogite and implications for evolution of the Beishan...Beishan Orogen, Central Asian Orogenic Belt, NW China. The address for the corresponding author was captured...MANUSCRIPT Continental origin of the Gubaoquan eclogite and implications for evolution of the Beishan
Journal (article/letter/editorial)
Earth Sciences, China University of Geosciences, Wuhan 430074, China 266590, China Laboratory for Crustal...studies of eclogite in the ultrahigh pressure (UHP) zone of the central Sulu belt in China have shown...during exhumation from the metamorphic peak to HP eclogite facies conditions. This observation requires that...sheets in retrogressed and migmatitic of UHP eclogite in the central Sulu belt. The leucosomes have...formed a silicate-rich supercritical fluid in eclogite that evolved to a denser, 2 Journal Pre-proof
Journal (article/letter/editorial)
metagabbros and Cpx-bearing granulites. All the eclogite samples studied are formed of well-preserved HP...these eclogites are petrologically similar to the eclogite samples from the better known Běstvina Unit. Eclogites...preserve relict mineral assemblage from a pre-eclogite stage, enclosed in garnet with prograde zoning...kyanite eclogite from Úhrov (Medaris et al. 2006), 800–850 °C and 1.7–1.9 GPa for Spačice eclogite, 1160–1180...1160–1180 °C a 1.7–1.9 GPa for the quartz-rich eclogite, and 960 °C a 1.9 GPa for other eclogites. Faryad
Journal (article/letter/editorial)
Metamorphic evolution of low-T eclogite from the North Qilian orogen, NW China: evidence from petrology and...100871, China (cjwei@pku.edu.cn) ABSTRACT Low-T eclogites in the North Qilian orogen, NW China share...for amphibole and clinopyroxene. Garnet in the eclogite typically exhibits growth zonations in which pyrope...formed mainly in the P–T conditions of lawsonite-eclogite facies at the pre-peak stage. Omphacite shows...compositions, paragonite formed. The decompression of eclogite did not lead to pronounced changes in garnet and
Journal (article/letter/editorial)
and paragneisses in the Beishan Orogenic Belt, China Qian Liu a , Guochun Zhao a,∗ , Min Sun a , Paul...Road, Hong Kong, China Department of Geology, Northwest University, Xi’an 710069, China a r t i c l e...s t r a c t The Beishan Orogenic Belt (BSOB) in China plays a pivotal role in understanding the tectonic...and the northern margins of the Tarim and North China Cratons to the south (Fig. 1a), is one of the largest...samples are located at ∼40 km southwest of Liuyuan County (Fig. 2). They belong to the Beishan Complex, representing
Journal (article/letter/editorial)
VSMOW. On a more local scale, within a single eclogite body, the δ18O values were the lowest (− 2.25...δ18O values, among different eclogite bodies in general and at single outcrop-scales in particular, reflects...ultrahigh-pressure (UHP) localities such as the Dabie– Sulu in China (Fu et al., 2013; Yui et al., 1997; Zheng et al...main mantle thrust comprise the amphibolite to eclogite facies series, which belong to the Higher Himalayan...subducted beneath Asia (Guillot et al., 2003). Eclogite facies metamorphism in the Kaghan Valley occurred
Journal (article/letter/editorial)
within eclogites. Transformation of gabbro into eclogite is documented in different stages ranging from...Typical eclogite parageneses are Grt + Omp + Zo + Ky + Qtz + Amp k Phe + Rut. The metapelitic eclogite host...Sm-Nd mineral isochrons (Pl-Cpx) for the gabbroic eclogite precursors give ages of between 247 + 16 and 255...L- 5, 101 + 7 and 109 + 8 Ma. The metapelitic eclogite host rocks (mica schists) yield Nd DM (depleted...Ma. Keywords: Sm-Nd mineral dating; Eclogite; Gabbro-eclogite transition; High-P metamorphism; Alpine
Journal (article/letter/editorial)
590 °C at 250-270 Ma; HABLER & THÖNI, 2001), and eclogite facies (2.4 GPa and 650-730°C at approximately...pegmatite gneisses. Meter to kilometre-sized lenses of eclogite, eclogiteamphibolite and (meta)gabbros occur within...is also linked to the rapid exhumation of the eclogite bearing unit (KURZ & FRITZ, 2003). Subsequent...Na-poor clinopyroxene ± calcic amphibole and sodic plagioclase, (2) kyanite mantled by complex symplectites...Mg-staurolite, (3) symplectites of biotite + plagioclase after phengite, and (4) garnet replaced by a
Journal (article/letter/editorial)
high metamorphic grade, including blueschist, eclogite, and amphibolite assemblages, and are typically...Ward Creek; and (4) white mica ages of 146.5 Ma (eclogite) and 134 Ma (epidote blueschist) from the Willow...comprising rocks ranging from lawsonite blueschist to eclogite. We also obtained hornblende ages of about 156...equivalent to many high-grade blocks and even include eclogite assemblages. In addition to sampling coherent...Panoche Pass, and the Pilarcitos gabbro in San Mateo County. The petrography of the samples and their field
Journal (article/letter/editorial)
high-pressure fluids during retrograde metamorphism of eclogite-facies rocks ( Voltri Massif, Italian Western...by retrograde symplectites (clinopyroxene + plagioclase k amphibole); in such cases the fluid inclusions...re-equilibration of a fluid presumably trapped at eclogite-facies conditions. The inclusions kinetically...are retained in primary fluid inclusions within eclogite facies minerals crystallized in veins and in the...reaction kinetics (Rubie, 1990). Fluid inclusions in eclogite-facies rocks therefore represent an important
Journal (article/letter/editorial)
Resources, School of Earth Sciences, China University of Geoscience, Wuhan, China; dOttawa-Carleton Geoscience...and young Figure 5. Quartz-alkali feldspar-plagioclase (QAP) modal classification diagram of the Koudakan...photographs of the Koudakan intrusion. (a) An outcrop of monzonite body intruded in Eocene to Oligocene...Petrography In the QAP (quartz-alkali feldspar-plagioclase) diagram, the intrusive rocks are dominated by...(Figure 6(a,b)). These rocks include subhedral plagioclase (with zoning and polysynthetic twinning) and
 
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