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Petrology of the nyböite-bearing eclogite in the Donghai area, Jiangsu Province, eastern China

Published online by Cambridge University Press:  05 July 2018

T. Hirajima ,
R. Zhang ,
J. Li  and
B. Cong
T. Hirajima
Affiliation:
Department of Geology and Mineralogy, Kyoto University, Kyoto 606, Japan
R. Zhang
Affiliation:
Institute of Geology, Academia Sinica, Beijing, China
J. Li
Affiliation:
Institute of Geology, Academia Sinica, Beijing, China
B. Cong
Affiliation:
Institute of Geology, Academia Sinica, Beijing, China
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Abstract

Nyböite occurs as porphyroblasts in the Jianchang eclogite in the Donghai area, northeastern Jiangsu Province, eastern China. The Jianchang eclogite contains some inclusions of quartz after coesite in clinopyroxene, garnet and epidote. It has colourless to pale-violet pleochroism. A thin rim with violet pleochroism often develops around nyb6ite and is taramitic. It is further retrogressed by the symplectite which is mainly composed of hornblende, aegirine-augite and albite. Nyböite is associated with jadeitic pyroxene in the Jianchang eclogite, although other porphyroblastic amphiboles in other Donghai eclogites are barroisitic to katophoritic and are associated with omphacite.

Fe-Mg partitioning between garnet and clinopyroxene and the presence of coesite pseudomorphs indicate P-T conditions in the Jianchang eclogite of about 740 ± 60°C and more than 28 kbar. Similar P-T conditions were estimated for other porphyroblastic amphibole-bearing eclogites in the Donghai area. Nyböite can occur in the Na-Al-Fe-rich local bulk composition under the medium to high temperature and very high-pressure conditions. Retrograde rim amphibole is poorer in NaB, variable in Si content, and richer in NaA variable than the porphyroblastic amphibole in the Donghai area. This roughly implies a P-T path where P decreases without a large decrease of T.

Keywords

nyböitecoesiteeclogiteChina
Type
Research Article
Information
Mineralogical Magazine , Volume 56 , Issue 382 , March 1992 , pp. 37 - 46
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 2014

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References

Carman, J. H. and Gilbert, M. C. (983) Experimental studies on glaucophane stability. Am. J. Sci., 283A, 414-37.Google Scholar
Enami, M. and Zang, Q. (1990) Quartz pseudomorphs after coesite in eclogites from Shandong province, east China. Am. Mineral., 75, 381–86.Google Scholar
Ghent, E. D. (1988) A review of chemical zoning in eclogite garnets. In Eclogites and Eclogite-Facies Rocks (Smith, D. C., ed.), Amsterdam, Elsevier Science Publishers.Google Scholar
Heinrich, C. A. (1986) Eclogite facies regional meta-morphism of hydrous mafic rocks in the Central Alpine Adula Nappe. J. Petrol., 27, Part 1, 123-54.10.1093/petrology/27.1.123CrossRefGoogle Scholar
Hirajima, T., Banno, S., Hiroi, Y., and Ohta, Y. (1988) Phase petrology of eclogites and related rocks from the Motalafjella high-pressure metamorphic complex in Spitsbergen (Arctic Ocean) and its significance. Lithos, 22, 75–97.CrossRefGoogle Scholar
Hirajima, T., Ishiwatari, A., Cong, B., Zhang, R., Banno, S., and Nozaka, T. (1990) Coesite from Mengzhong eclogite at Donghai country, northeastern Jiangsu province, China. Mineral. Mag., 54, 579–83.10.1180/minmag.1990.054.377.07CrossRefGoogle Scholar
Holland, T. J. B. (1979) Experimental determination of the reaction paragonite = jadeite + kyanite + H20 and internally consistent thermodynamic data for part of the system Na20-AI203-SiO2-H20, with applications to eclogites and blueschists. Contrib. Mineral. Petrol., 68, 293–301.10.1007/BF00371551CrossRefGoogle Scholar
Ishiwatari, A., Cong, B., Zhang, R., Itaya, T., and Nishina, K. (1990) K-Ar ages of coesite-eclogites and gneisses from Shandong and Jiangsu Province, China. Abst. Ann. Meeting of Geol. Soc. Japan, Toyama, p. 480. (In Japanese.)Google Scholar
Jamtveit, B. (1987) Metamorphic evolution of the Eiksunddal eclogite complex, Western Norway, and some tectonic implications. Contrib. Mineral. Petrol., 95, 82–99.10.1007/BF00518032CrossRefGoogle Scholar
Kennedy, C. S. and Kennedy, G. C. (1976) The equilibrium boundary between graphite and diamond. J. Geophys. Res., 81, 2467–70.CrossRefGoogle Scholar
Kienast, J. R., Lombardo, B., Biino, G., and Pinardon, J. L. (1991) Petrology of very high-pressure eclogitic rocks from the Brossasco-Isasca complex, Dora Maira Massif, Italian Western Alps. J. Metamorphic Geol., 9, 19–34.CrossRefGoogle Scholar
Koons, P. O. (1984) Implications to garnet-clinopyrox-ene geothermometry of non-ideal solid solution in jadeitic pyroxenes. Contrib. Mineral. Petrol., 88, 340–7.10.1007/BF00376759CrossRefGoogle Scholar
Kretz, R. (1983) Symbols for rock-forming minerals. Am. Mineral., 68, 277–9.Google Scholar
Krogh, E. J. (1980) Geochemistry and petrology of glaucophane-bearing eclogites and associated rocks from Sunnfjord, Western Norway. Lithos, 13, 355–80.CrossRefGoogle Scholar
Krogh, E. J. (1982) Metamorphic evolution of Norwegian country-rock eclogites, as deduced from mineral inclusions and compositional zoning in garnets. Ibid., 15, 305-21.Google Scholar
Lappin, M. A. and Smith, D. C. (1978) Mantle-equilibrated orthopyroxene eclogite pods from the basal gneisses from the Selje district, Western Norway. J. Petrol., 19, 530–84.10.1093/petrology/19.3.530CrossRefGoogle Scholar
Lappin, M. A. and Smith, D. C. (1981) Carbonate, silicate and fluid relation ships in eclogites, Selje district and environs, SW Norway. Trans. Royal Soc. Edinburgh, Earth Sci., 72, 171–93.10.1017/S0263593300009986CrossRefGoogle Scholar
Leake, B. E. (1978) Nomenclature of amphiboles. Am. Mineral., 68, 1023–52.Google Scholar
Liu, R. X., Ma, B. L., Zhang, Z. Z., Zhang, Z. M., and Yang, H. M. (1989) Geologic features of the tectonic melange in northern Jiangsu-southern Shandong region and lithologic column. Seism. Geol., 11, 47-54 (C).Google Scholar
Ma, B. L. and Zhang, Z. Z. (1988) The features of the paired metamorphic belts and evolution of paleotec-tonics in the east part of Dabie mountains. Ibid., 10, 19-28 (C).Google Scholar
Mirwald, P. W. and Massone, H. J. (1980) Quartz = cocsite transition and the comparative friction measurements in pistoncylinder apparatus using talc-alsimag-glass (TAG) and NaCl high pressure cells. Neues Jahrb. Mineral., Mh., 469-477.Google Scholar
Mori, T. and Kanehira, K. (1984) X-ray energy spectrometry for electron-probe analysis. J. Geol. Soc. Japan, 90, 271–85.CrossRefGoogle Scholar
Okay, A. I., Armam, M. B., and Goncuoglu, M. C. (1985) Petrology and phase relations of the kyanite-cclogites from eastern Turkey. Contrib. Mineral. Petrol., 91, 196–204.CrossRefGoogle Scholar
Okay, A. I., Xu, S., and Sengor, A. M. C. (1989) Coesitc from the Dabie Shah eclogites, central China. Eur. Jour. Mineral. 1, 595–8.CrossRefGoogle Scholar
Perkins, D. III, Wcstrum, E. F. Jr., and Essenc, E. J. (1980) The thermodynamic properties and phase relations of some minerals in the system CaO-AIzO3-SiO2-H20. Geochim. Cosmochim. Acta, 44, 61–84.10.1016/0016-7037(80)90177-5CrossRefGoogle Scholar
Phillips, R. and Layton, W. (1964) The calciferous and alkali amphiboles. Mineral. Mag., 33, 1097–109.Google Scholar
Powell, R. (1985) Regression diagnostic and robust regression in geothermomcter/geobarometer cali-bration: the garnet—clinopyroxene geothermometer revisited. J. Metamorphic Geol., 3, 231–43.CrossRefGoogle Scholar
Smith, D. C. (1984) Coesite in clinopyroxene in the Caledonides and its implications for geodynamics. Nature, 310, 641–4.CrossRefGoogle Scholar
Smith, D. C. (1988) A review of the peculiar mineralogy of the ‘Norwegian coesite-eclogite province’, with crystal-chemical, petrological, geochemical and geodynami-cal notes and an extensive bibliography. Chapter 1. 1-206. In Eclogites and Eclogite Facies Rocks (Smith, D. C., ed.), Amsterdam, Elsevier Science Publishers.Google Scholar
Smith, D. C., Yang, J., Oberti, R., and Previde-Massara, E. (1990) A new locality of nyböite and taramite, the Jianchang eclogite pod in the ‘Chinese Su-Lu coesite eclogite province’ compared with the nyböite- and taramite-bearing Liset eclogite pod in the ‘Norwegian coesite-eclogite province'. Abstract of IMA meeting in Beifing, China, 889-90.Google Scholar
Tectonic map compiling group, Institute of Geology, Academia Sinica (1974) A preliminary note on the basic tectonic features and their developments in China. Sci. Geol. Sinica, 1, 1–17.(C).Google Scholar
Ungaretti, L., Smith, D. C., and Rossi, G. (1981) Crystal-chemistry by X-ray structure refinement and electron microprobe analysis of a series of sodic-calcic to alkali-amphiboles from the Nyb6 eclogite pod, Norway. Bull. Mineral., 104, 400–12.Google Scholar
Wang, X., Jing, Y., Liou, J. G., Pan, G., Liang, W., Xia, M., and Maruyama, S. (1990) Field occurrences and petrology of eclogites from the DaNe Mountains, Anhui, central China. Lithos, 25, 119–31.CrossRefGoogle Scholar
Wang, Y., Yang, J., and Chi, J. (1981) Sm-Nd dating and Nd, Sr isotope of Su-Lu eclogites and their significance on tectonic and genesis. In The 4th academic meeting of isotopic geochronology and geochemistry, China, Abstr., 208-17.Google Scholar
Wang, Z. (1986) On division of the metamorphosed strata in the Jiaonan Uplift and its tectonic evolution. In Proceeding of international symposium on Precam-brian crustal evolution (tectonics), (ed. by Geol. Soc. of China), Geol. Pub. House, 208-17.Google Scholar
Yang, J. and Smith, D. C. (1989) Evidence for a former sanidine-coesite-eclogite at Lanshantou, eastern China and the recognition of the Chinese ‘Su-Lu coesite-eclogite province'. Terra Abstracts, 1, 26.Google Scholar
Zhang, R., Hirajima, T., Banno, S., Ishiwatari, A., Li, J., Cong, B., and Nozaka, T. (1990) Coesite-eclogite from Donghai area, Jiangsu province, China. Abstract of the IMA meeting in Beijing, China, 923-4. Google Scholar
Zhang, Z. M., Liou, J. G., and Coleman, R. G. (1984) An outline of the plate tectonics of China. Geol. Soc. Am. Bull., 95, 295–312.2.0.CO;2>CrossRefGoogle Scholar