Advances in Earth Science ›› 2001, Vol. 16 ›› Issue (2): 147-152. doi: 10.11867/j.issn.1001-8166.2001.02.0147

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A.A.Marakushev 1, A.V.Bobrov 1, V.G.Butvina 1,SANG Long-kang 2, LIU Rong 2

  1. 1.Department of Petrology,Geological Faculty,Moscow State University,Vorob'evy Gory,Moscow  119899,Russia
    2.Faculty of the Earth Sciences,China University of Geosciences,Wuhan  430074,China
  • Received:2000-08-15 Revised:2000-10-12 Online:2001-04-01 Published:2001-04-01

A.A.Marakushev, A.V.Bobrov, V.G.Butvina,SANG Long-kang, LIU Rong. PETROLOGY OF THE MAKSYUTOV ECLOGITE-BLUESCHIST COMPLEX,SOUTHERN URALS[J]. Advances in Earth Science, 2001, 16(2): 147-152.

The Maksyutov complex is a part of Precambrian foldbelt extending from the Urals,North Karakum,Kunlun,Qilian,Qinling to the Dabie Sulu belt of eastern China. In Maksyutov the eclogites present as single blocks and boudines embedded within the glaucophane and micaceous schists. Due to the Phanerozoic multi phase granite intrusions and their resulting superposed metamorphism the data on the age of eclogite are diverse spanning from Early Proterozoic to Lower Paleozoic. The mineral composition of the eclogite are constant with garnet, omphacite and rutile,however, they are often replaced by metamorphic assemblages of epidote blueschist facies. The garnets are iron rich with f=50%~75%. Clinopyroxenes are omphacites Jd 40.3~52.2. According to the garnet clinopyroxene geothermometry and Jadeite +quartz→albite geobarometry T=1060~686℃,P=22.3×105~14.16×105 kPa are estimated. The PT trajectory of Maksyutov eclogite corresponds to the upward intrusion of eclogite magma, the final consolidation of the eclogites probably took place in the lower crust.

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