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High-grade metamorphic rock

A rock classification type
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01778980017271952817077.jpg
Eclogite, etc.

Pohorje Mountains, Slovenia
09443810017271952826718.jpg
Epidote-glaucophane schist

Porh Morvil creek, Primiture, Groix, Lorient, Morbihan, Brittany, France
04158970017271952816356.jpg
Jadeite Jade

Hpakant, Hpakant-Tawmaw Jade Tract, Hpakant Township, Mohnyin District, Kachin State, Myanmar
01778980017271952817077.jpg
Eclogite, etc.

Pohorje Mountains, Slovenia
00169320017866630445549.jpg
Epidote-glaucophane schist

Porh Morvil creek, Primiture, Groix, Lorient, Morbihan, Brittany, France
04158970017271952816356.jpg
Jadeite Jade

Hpakant, Hpakant-Tawmaw Jade Tract, Hpakant Township, Mohnyin District, Kachin State, Myanmar
01130740017271952845789.jpg
Eclogite, etc.

Pohorje Mountains, Slovenia
03449780017271952847791.jpg
Epidote-glaucophane schist

Porh Morvil creek, Primiture, Groix, Lorient, Morbihan, Brittany, France
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About High-grade metamorphic rockHide

Metamorphic rock formed from high-grade metamorphic processes.


Unique IdentifiersHide

Mindat ID:
50014
Long-form identifier:
mindat:1:1:50014:4

Classification of High-grade metamorphic rockHide

Sub-divisions of High-grade metamorphic rockHide

View all 45 analyses with additional filters.

Age distributionHide

Recorded ages:
to Quaternary : 18100 Ma to 2.588 Ma - based on 45 recorded ages.
Sample ages:
Sample IDRecorded ageGeologic TimeDating method
15.332 to 2.588 MaCenozoic
2419.2 ± 3.2 to 358.9 ± 0.4 MaDevonian
3486 ± 24 MaFurongianRb-Sr whole rock
4992 ± 5 MaTonianSm–Nd isotope
52890 ± 45 MaMesoarcheanRb-Sr whole rock isochron
64000 to 2500 MaArchean
74000 to 2500 MaArchean
84000 to 2500 MaArchean
94000 to 2500 MaArchean
104000 to 2500 MaArchean
114000 to 2500 MaArchean
124000 to 2500 MaArchean
134000 to 2500 MaArchean
14~4600 to 541 ± 1.0 MaPrecambrian
15~4600 to 541 ± 1.0 MaPrecambrian
16~4600 to 541 ± 1.0 MaPrecambrian
17~4600 to 541 ± 1.0 MaPrecambrian
18~4600 to 541 ± 1.0 MaPrecambrian
19~4600 to 541 ± 1.0 MaPrecambrian
20~4600 to 541 ± 1.0 MaPrecambrian
Sample references:
IDLocalityReferenceNotes
1Nepheline occurrence, Wuxi, Jiangsu, China
QI, Q. U., TAYLOR, L. A, ZHOU, X. (1995) Petrology and Geochemistry of Mantle Peridotite Xenoliths from SE China. Journal of Petrology, 36 (1) 55-79 doi:10.1093/petrology/36.1.55
2Lizard Complex, Cornwall, England, UK
Styles, M.T.; Cook, C.A.; Holdsworth, R.E. (2000) The geology of the Lizard complex; 100 years of progress. Geoscience in South-West England, 10 (1). 92-98
3Galiñeiro Complex, Vincios, Gondomar, Pontevedra, Galicia, Spain
Priem, H. N. A., Boelrijk, N. A. I. M., Verschure, R. H., Hebeda, E. H., & Floor, P. (1966). Isotopic evidence for Upper-Cambrian or Lower-Ordovician granite emplacement in the Vigo area, Northwestern Spain. Geologie en Mijnbouw (Netherlands), 45, 36-40.
4Sandsøya Southeast, Sandsøya, Sande, Møre og Romsdal, Norway
Root, D. B., Hacker, B. R., Gans, P. B., Ducea, M. N., Eide, E. A., Mosenfelder, J. L. (2005) Discrete ultrahigh-pressure domains in the Western Gneiss Region, Norway: implications for formation and exhumation. Journal of Metamorphic Geology, 23 (1). 45-61 doi:10.1111/j.1525-1314.2005.00561.x
5Nkonglong occurrence, Lokoundjé, Océan, South Region, Cameroon
Lasserre, M. & Soba, D. 1976. Age liberien des granodiorites et des gneiss a pyroxene du Cameroun meridional. Bulletin du Bureau de Recherches Geologiques et Minieres. Paris, 4, 17-32.
pyroxene-bearing gneisses
6Tongshi complex, Pingyi County, Linyi, Shandong, China
Zhang, H. F., Sun, M., Zhou, X. H., & Ying, J. F. (2005). Geochemical constraints on the origin of Mesozoic alkaline intrusive complexes from the North China Craton and tectonic implications. Lithos, 81(1-4), 297-317.
7Kanakapura, Ramanagara District, Karnataka, India
Ikramuddin, M., & Stueber, A. M. (1976). Rb-Sr ages of Precambrian dolerite and alkaline dikes, southeast Mysore state, India. Lithos, 9(3), 235-241.
8Reddypalle plug, Sri Sathya Sai District, Andhra Pradesh, India
Suresh, G., Ananthanarayana, R., Hanumanthu, R. C., Ghosh, S., Kumar, A. A., & Reddy, K. V. S. (2010). Geology of Pulikonda and Dancherla Alkaline Complexes, Andhra Pradesh. Journal of the Geological Society of India, 75(4), 576-595.
9Perunthol-Kakkaponnu, Pathanapuram, Kollam District, Kerala, India
Sandiford, M., & Santosh, M. (1991). A granulite facies kalsilite-leucite-hibonite association from Punalur, Southern India. Mineralogy and Petrology, 43(3), 225-236.
10Peralimala Intrusion, Kannur District, Kerala, India
Sukumaran, P. V. (1983) Aegirine Augite Syenite at Peralimala, Cannanore District, Kerala. Journal of the Geological Society of India, 24 (1). 54-56
11Chagvedaiv intrusion, Murmansk Oblast, Russia
Kogarko, L. N., Kononova, V. A., Orlova, M. P., Woolley, A. R. (1995) Alkaline Rocks and Carbonatites of the World. Part 2: The Former USSR. Springer Netherlands. doi:10.1007/978-94-010-9094-0
12Ambalavayal intrusion, Wayanad district, Kerala, India
Santosh, M., Drury, S. A. (1988) Alkali Granites with Pan-African Affinities from Kerala, S. India. The Journal of Geology, 96 (5) 616-626 doi:10.1086/629257
13Samchampi, Samchampi-Samteran alkaline igneous complex, East Karbi Anglong District, Assam, India
Kumar, D., Mamallan, R., Saravanan, B., Jain, S. K., & Krishnamurthy, P. (1989). Petrology and geochemistry of the Samchampi alkaline carbonatite complex, Mikir Hills, Assam, India. Exploration and Research of Atomic Minerals, 2, 183-199.
14Baradangua, Muzaffarpur District, Bihar, India
Sahu, K. N. (1976) Petrological Observations on Nepheline Syenites of Baradangua, Dhenkanal, Orissa. Journal of the Geological Society of India, 17 (4). 484-489
15Uppalapadu Pluton, Prakasam District, Andhra Pradesh, India
Krishna Reddy, K.; Ratnakar, J.; Leelanandam, C. (1998) A Petrochemical Study of the Proterozoic Alkaline Complex of Uppalapadu, Prakasam Province, Andhra Pradesh, India. Journal Geological Society of India, 52 (1). 41-52 doi:10.17491/jgsi/1998/520107
16Pikkili, Dharmapuri district, Tamil Nadu, India
Krishnan, C.N. (1980) The alkaline complex of the Pikkili area, Dharmapuri District, Tamil Nadu, south India. PhD thesis, University of Madras.
17Koraput gabbro/nepheline syenite, Koraput District, Odisha, India
Bose, Mihir K. (1970) Petrology of the Intrusive Alkalic Suite of Koraput, Orissa. Journal of the Geological Society of India, 11 (2). 99-126
18Samalpatti carbonatite complex, Krishnagiri District, Tamil Nadu, India
Subramaniam, V., Viladkar, S. G., Upendran, R. (1978) Carbonatite Alkali Complex of Samalpatti Dharmapuri District, Tamil Nadu. Journal of the Geological Society of India, 19 (5). 206-216
19Purimetla, Prakasam District, Andhra Pradesh, India
Leelanandam, C. (1989) The Prakasam Alkaline Province in Andbra Pradesh, India. Journal Geological Society of India, 34 (1). 25-45 doi:10.17491/jgsi/1989/340102
20Kudangulam dikes, Tirunelveli District, Tamil Nadu, India
Ramasamy, R. (1996) Carbonatite Dykes from Kudangulam Area, Near Cape Comorin, Tamil Nadu. Journal Geological Society of India, 48 (2). 221-226 doi:10.17491/jgsi/1996/480211

Chemical AnalysisHide

Oxide wt%:
 12
TiO22.94 %0.56 %
Al2O313.1 %15.95 %
Fe2O318.7 %8.18 %
MnO0.27 %0.14 %
MgO6.76 %8.96 %
CaO10.87 %9.03 %
Na2O2.53 %1.80 %
K2O0.07 %1.18 %
P2O50.17 %0.13 %
LOI0.1 %0.95 %
SiO244.56 %52.04 %
Total:100.07 %98.92 %
Empirical formulas:
Sample IDEmpirical Formula
1n/a
2n/a
Sample references:
IDLocalityReferenceNotes
1Kovalo eclogites, Kechros, Arriana, Rhodope, Eastern Macedonia and Thrace, Greece
Mposkos, E.; Baziotis, I.; Proyer, A. (2011) Pressure–temperature evolution of eclogites from the Kechros complex in the Eastern Rhodope (NE Greece). International Journal of Earth Sciences, 101 (4). 973-996 doi:10.1007/s00531-011-0699-2
Fresh eclogite sample consisting primarily of omphacite and garnet ( ~80% modal) with minor amphibole, plagioclase, epidote group, rutile and titanite.
2Charakoma eclogite, Soufli, Evros, Eastern Macedonia and Thrace, Greece
Mposkos, E.; Baziotis, I.; Proyer, A. (2011) Pressure–temperature evolution of eclogites from the Kechros complex in the Eastern Rhodope (NE Greece). International Journal of Earth Sciences, 101 (4). 973-996 doi:10.1007/s00531-011-0699-2
Bulk rock chemistry of a kyanite-eclogite sample. Average of 6 analyses.

Internet Links for High-grade metamorphic rockHide

References for High-grade metamorphic rockHide

Quick NavTopAbout High-grade metamorphic rockUnique IdentifiersClassification Sub-divisions Age distributionChemical AnalysisInternet Links References
 
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