Skip to main content
SpringerLink
Log in

Paragenesis of sodic pyroxene-bearing quartz schists: implications for the P-T history of the Sanbagawa belt

  • Published:
Contributions to Mineralogy and Petrology Aims and scope Submit manuscript

Abstract

Sodic pyroxene (jadeite content X jd=0.1–0.3) occurs locally as small inclusions within, albite porphyroblasts and in the matrix of hematite-bearing quartz schists in the Sanbagawa (Sambagawa) metamorphic belt, central Shikoku, Japan. The sodic, pyroxene-bearing samples are characteristically free from chlorite and their typical mineral assemblage is sodic pyroxene+subcalcic (or sodic) amphibole+phengitic mica+albite+quartz+hematite+titanite±epidote. Spessartine-rich garnet occurs in Mn-rich samples. Sodic pyroxene in epidote-bearing samples tends to be poorer in acmite content (average X Acm=0.26–0.50) than that in the epidote-free samples (X Acm=0.45–0.47). X Jd shows no systematic relationship to metamorphic grade, and is different among the three sampling regions [Saruta-gawa, Asemi-gawa and Bessi (Besshi)]. The average X Jd of the Saruta-gawa samples (0.21–0.29) is higher than that of the Asemi-gawa (0.13–0.17) and Bessi (0.14–0.23). The P-T conditions of the Asemi-gawa and Bessi regions are estimated at 5.5–6.5 kbar, >360°C in the chlorite zone, 7–8.5 kbar, 440±15°C in the garnet zone and 8–9.5 kbar, 520±25°C in the albite-biotite zone. Metamorphic pressure of the Saruta-gawa region is systematically 1–1.5 kbar higher than that of the Asemi-gawa and Bessi regions, and materials of the Saruta-gawa region have been subducted to a level 3–5 km deeper than materials that underwent metamorphism at equivalent temperatures and are now exposed in the Asemi-gawa and Bessi regions. Pressure slightly increases toward the north (structurally high levels) through the Sanbagawa belt of central shikoku. Two types of zonal structure were observed in relatively coarse-grained sodic pyroxenes in the matrix. One type is characterized by increasing X Jd from core to rim, the other type by decreasing X Jd from core to rim. Both types of zoned pyroxenes show an increase in X Fe 2+[=Fe2+/(Fe2++Mg)] from core to rim. The first type of zoning was observed in a sample from the chlorite zone of lowest grade, whereas the latter occurs in the garnet and albite-biotite zones of higher grade. The contrast in zonal structure implies that dP/dT during prograde metamorphism decreased with increasing metamorphic grade and may have been negative in some samples from the higher-grade zones. The estimated dP/dT of the prograde stage of the chlorite zone is 3.2 kbar/100°C, and that of the garnet and albite-biotite zones is -1.8 to 0.9 kbar/100°C. The variation of dP/dT at shallow and deep levels of a subduction system probably reflects the difference of heating duration and/or change in thermal gradient of the subduction zone by continuous cooling of the surrounding mantle.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  • Anovitz LM, Essene EJ (1987) Phase equilibria in the system CaCO3−MgCO3−FeCO3. J Petrol 28:389–414

    Google Scholar 

  • Banno S (1959) Aegirinaugites from crystalline schists in Sikoku. J Geol Soc Jpn 65:652–657

    Google Scholar 

  • Banno S (1964) Petrologic studies of the Sanbagawa crystalline schists in the Bessi-Ino district, central Shikoku, Japan. J Fac Sci Tokyo Univ Sect II 15:203–319

    Google Scholar 

  • Banno S (1986) Stability of diopside-jadeite solid solution (in Japanese with English abstract). J Jpn Assoc Mineral Petrol Econ Geol 81:281–288

    Google Scholar 

  • Banno S, Sakai C (1989) Geology and metamorphic evolution of the Sanbagawa metamorphic belt, Japan. In: Daly JS, Cliff RA, Yardley BWD (eds) Evolution of metamorphic belts. Geol Soc Spec Publ 43, pp 519–532

  • Banno S, Higashino T, Otsuki M, Itaya T, Nakajima T (1978) Thermal structure of the Sanbagawa metamorphic belt in central Shikoku. J Phys Earth 26 Suppl:345–356

    Google Scholar 

  • Banno S, Sakai C, Higashino T (1986) Pressure-temperature trajectory of the Sanbagawa metamorphism deduced from garnet zoning. Lithos 19:51–63

    Google Scholar 

  • Banno Y (1989) Petrological study of the Sanbagawa retrograde metamorphism in the Saruta-gawa area, Iyomishima City, Ehimc Prefecture (unpublished). Graduate thesis Nagoya Univ

  • Black PM (1977) Regional high-pressure metamorphism in New Caledonia: phase equilibria in the Ouégoa district. Tectonophysics 43:89–107

    Google Scholar 

  • Brothers RN, Yokoyama K (1982) Comparison of the high-pressure schist belts of New Caledonia and Sanbagawa, Japan. Contrib Mineral Petrol 79:219–229

    Google Scholar 

  • Brown EH, Bradshaw JY (1979) Phase relations of pyroxene and amphibole in greenstone, blueschist and eclogite of the Franciscan complex, California. Contrib Mineral Petrol 71:67–83

    Google Scholar 

  • Droop GTR (1982) A clinopyroxene paragenesis of albite-epidoteamphibolite facies in meta-syenites from the south-east Tauern Window, Austria. J Petrol 23:163–185

    Google Scholar 

  • Enami M (1981) On sodic plagioclase in some rocks of the Sanbagawa metamorphic belt in the Bessi district, Shikoku, Japan. Proc Jpn Acad Ser B 57:188–193

    Google Scholar 

  • Enami M (1982) Oltgoclas-biotite zone of the Sanbagawa metamorphic terrain in the Bessi district, central Shikoku, Japan (in Japanese with English abstract). J Geol Soc Jpn 88:887–900

    Google Scholar 

  • Enami M (1982) Petrology of pelitic schists in the oligoclase-biotite zone of the Sanbagawa metamorphic terrain, Japan: phase equilibria in the highest grade zone of a high-pressure intermediate type of metamorphic belt. J Metamorphic Geol 1:141–161

    Google Scholar 

  • Enami M, Higashino T (1988) Dolomite in Sanbagawa metamorphic rocks of the Bessi area, central Shikoku (in Japanese with English abstract). J Jpn Assoc Mineral Petrol Econ Geol 83:338–349

    Google Scholar 

  • Enami M, Zang Q, Yin Y (1993a) High-pressure eclogites in northern Jiangsu-southern Shandon province, east China. J Metamorphic Geol 11:589–603

    Google Scholar 

  • Enami M, Zhao Z, Wang Q (1993b) A calderitic garnet paragenesis in granitic gneisses in the Su-Lu ultra high-pressure terrane, eastern China. Mineral J 16:268–277

    Google Scholar 

  • Ernst WG (1971) Petrologic reconnaissance of Franciscan metagraywackes from the Diablo Range, Central California Coast Ranges. J Petrol 12:413–437

    Google Scholar 

  • Ernst WG (1988) Tectonic history of subduction zones inferred from retrograde blueschist P-T paths. Geology 16:1081–1084

    Google Scholar 

  • Evans BW (1990) Phase relations of epidote-blueschists. Lithos 25:3–23

    Google Scholar 

  • Gasparik T (1985) Experimentally determined compositions of diopside-jadeite pyroxene in equilibrium with albite and quartz at 1200–1350°C and 15–34 kbar. Geochim Cosmochim Acta 49:865–870

    Google Scholar 

  • Gasparik T, Lindlcy DH (1980) Phase equilibria at high pressure of pyroxenes containing monovalent and trivalent ions. In: Prewitt CT (ed) Pyroxenes. (Reviews in mineralogy 7) Mineral Soc Am, Washington, DC, pp 309–339

    Google Scholar 

  • Gouchi N (1983) Kamuikotan metamorphic rocks in the Kamuikotan gorge arca, west of Asahikawa, Hokkaido (in Japanese with English abstract). J Jpn Assoc Mincral Petrol Econ Geol 78:383–393

    Google Scholar 

  • Grambling JA (1990) Internally consistent geothermometry and H2O barometry in metamorphic rocks: the example of garnetchlorite-quartz. Contrib Mineral Petrol 105:617–628

    Google Scholar 

  • Hara I, Shiota T, Hide K, Okamoto K, Takeda K, Hayasaka Y, Sakurai Y (1990) Nappe structure of the Sambagawa belt. J Metamorphic Geol 8:441–456

    Google Scholar 

  • Hara I, Shiota T, Hide K, Kanai K, Goto M, Scki S, Kaikiri K, Takeda K, Hayasaka Y, Miyamoto T, Sakurai Y, Ohtomo Y (1992) Tectonic evolution of the Sambagawa schists and its implications in convergent margin processes. J Sci Hiroshima Univ Ser C 9:495–595

    Google Scholar 

  • Hashimoto M, Funakoshi R, Kusakabe K (1990) Mn-rich amphiboles from quartz schists of the Iimori district Sambagawa terrane, Wakayama. J Jpn Assoc Mineral Petrol Econ Geol 85:481–487

    Google Scholar 

  • Higashino T (1975) Biotite zone of Sanbagawa metamorphic terrain in the Siragayama area, central Sikoku, Japan (in Japanese with English abstract). J Geol Soc Jpn 81:653–670

    Google Scholar 

  • Higashino T (1990) The higher-grade metamorphic zonation of the Sanbagawa motamorphic belt in central Shikoku Japan. J Metamorphic Geol 8:413–423

    Google Scholar 

  • Higashino T, Sakai C, Otsuki M, Itaya T, Banno S (1981) Electron microprobe analyses of rock-forming minerals from the Sanbagawa metamorphic rocks, Shikoku. I. Asemi River area. Sci Rep Kanazawa Univ 26:73–122

    Google Scholar 

  • Higashino T, Sakai C, Kurata H, Enami M, Hosotani H, Enami Makiko, Banno S (1984) Electron microprobe analyses of rockforming minerals from the Saubagawa metamorphic rocks, Shikoku. II. Sazare, Kotu and Bessi areas. Sci. Rep Kanazawa Univ 29:37–64

    Google Scholar 

  • Hirajima T (1983) The analysis of the paragenesis of glaucophanitic metamorphism for a model ACF system by Schreinemakers' method (in Japanese with English abstract). J Geol Soc Jpn 89:679–691

    Google Scholar 

  • Hodges KV, Spear FS (1982) Geothermometry, geobarometry and the Al2SiO5 triple point at Mt. Moosilauke, New Hampshire. Am Mineral 67:1118–1134

    Google Scholar 

  • Holland TJB (1983) The experimental determination of activities in disordered and short-range ordered jadeitic pyroxenes. Contrib Mineral Petrol 82:214–220

    Google Scholar 

  • Holland TJB, Powell R (1990) An enlarged and updated internally consistent thermodynamic dataset with uncertainties and correlations: the system K2O−Na2O−CaO−MgO−FeO−FeO−Fe2O3−Al2O3−TiO2−SiO2−C−H2−O2. J Metamorphic Geol 8:89–124

    Google Scholar 

  • Hosotani H (1980) Growth stage of albite porphyroblast in pelitic schist of the Sanbagawa metamorphic belt (in Japanese with English abstract) J geol Soc Jpn 86:537–543

    Google Scholar 

  • Indares A, Martignole J (1985) Biotite-garnet geothermometry in the granulite facies: the influence of Ti and Al in biotite. Am Mineral 70:272–278

    Google Scholar 

  • Itaya T, Takasugi H (1988) Muscovite K−Ar ages of the Sanbagawa schists, Japan. Contrib Mineral Petrol 100:281–290

    Google Scholar 

  • Iwasaki M (1963) Metamorphic rocks of the Kôtsu-Bizan area, eastern Shikoku. J Fac Sci Tokyo Univ Sect II 15:1–90

    Google Scholar 

  • Kawachi Y, Watanabe T, Landis CA (1982) Origin of mafic volcanogenic schists and related rocks in the Sanbagawa belt, Japan. J Geol Soc Jpn 88:797–817

    Google Scholar 

  • Kitamura M, Wallis SR, Hirajima T (1993) Sector zoning and surface roughening of garnet in the Sanbagawa metamorphic rock. Proc 6th Topic Meet Cryst Grwoth Mech:215–220

  • Kretz P (1983) Symbols for rock-forming minerals. Am Mineral 68:277–279

    Google Scholar 

  • Krogh EJ (1982) Metamorphic evolution of Norwegian contryrock eclogite, as deduced from mineral inclusions and compositional zoning in garnets. Lithos 15:305–321

    Google Scholar 

  • Krogh EJ (1988) The garnet-clinopyroxene Fe−Mg geothermometer —a reinterpretation of existing experimental data. Contrib Mineral Petrol 99:44–48

    Google Scholar 

  • Kunugiza K, Takasu A, Banno S (1986) The origin and metamorphic history of the ultramafic and metagabbro bodies in the Sanbagawa belt. Geol Soc Am Mem 164:375–385

    Google Scholar 

  • Kurata H, Banno S (1974) Low-grade progressive metamorphism of pelitic schists of the Sazare area, Sanbagawa metamorphic terrain in central Shikoku, Japan. J Petrol 15361–382

    Google Scholar 

  • Leake BE (1978) Nomenclature of amphiboles. Am Mineral 63:1023–1052

    Google Scholar 

  • Maruyama S, Liou JG (1985) The stability of Ca−Na pyroxene in low-grade metabasites of high-pressure intermediate facies series. Am Mineral 70:16–29

    Google Scholar 

  • Maruyama S, Liou JG, (1988) Petrology of Franciscan metabasites along the jadeite-glaucophane type facies series, Cazadero, California. J Petrol 29:1–37

    Google Scholar 

  • Massonne H-J, Schreyer W (1986) High-pressure syntheses and X-ray properties of white micas in the system K2O−MgO−Al2O3−SiO2−H2O. Ncues Jahrb Mineral Abh 153:177–215

    Google Scholar 

  • Miyashiro A (1961) Evolution of metamorphic belts. J Petrol 2:277–331

    Google Scholar 

  • Nakajima T, Banno S, Suzuki T (1977) Reactions leading to the disappearance of pumpellyite in low-grade metamorphic rocks of the Sanbagawa metamorphic belt in central Shikoku, Japan. J Petrol 18:263–284

    Google Scholar 

  • Nitsch KH (1971) Stabilitätsbeziehungen von Prehnit- und Pumpellyit-haltigen Paragenesen. Contrib Mineral Petrol 30:240–260

    Google Scholar 

  • Otsuki M (1980) Zonal structure of albite porphyroblast from basic Sanbagawa schists in central Shikoku. (Notes on petrography and rock-forming mineralogy 7). J Jpn Assoc Mineral Petrol Econ Geol 75:196–202

    Google Scholar 

  • Otsuki M, Banno S (1990) Prograde and retrograde metamorphism of hematite-bearing basic schist in the Sanbagawa belt in central Shikoku. J Metamorphic Geol 8:425–439

    Google Scholar 

  • Oxburgh ER, Turcotte DL (1974) Thermal gradients and regional metamorphism in overthrust terrains with special reference to the Eastern Alps. Schweiz Mineral Petrogr Mitt 54:641–662

    Google Scholar 

  • Oxburgh ER, Turcotte DL (1976) The physicochemical behavior of the descending lithosphere. Tectonophysics 32:107–128

    Google Scholar 

  • Peacock SM (1987) Creation and prescrvation of subduction related inverted metamorphic gradients. J Geophys Res 92:12763–12781

    Google Scholar 

  • Peacock SM (1991) Numerical simulation of subduction zone pressure-temperature-time paths: constraints on fluid production and arc magmatism. Philos Trans R Soc London A335:345–353

    Google Scholar 

  • Powell R (1985) Regression diagnostics and robust regression in geothermometer/geobarometer calibration: the garnet-clinopyroxene geothermometer revised. J. Mctamorphic Geol 3:231–243

    Google Scholar 

  • Powell R, Condliffe DM, Condliffe E (1984) Calcite-dolomite geothermometry in the system CaCO3−MgCO3−FeCO3: an experimental study. J Metamorphic Geol 2:33–42

    Google Scholar 

  • Reinsch D (1979) Glaucophanites and eclogites from Val Chiusella, Scsia-Lanzo zone (Italian Alps). Contrib Mineral Petrol 70:257–266

    Google Scholar 

  • Sengupta P, Dasgupta S, Bhattacharya PK, Hariya Y (1989) Mixing behavior in quaternary garnct solid solution and an extended Ellis and Green garnet-clinopyroxene geothermometer. Contrib Mineral Petrol 103:223–227

    Google Scholar 

  • Shibakusa H (1989) Lawsonite-pumpellyite-epidote stabilities in glaucophane schists in the Horokanai-Kamietanbetsu area of Kamuikotan zone, Hokkaido, Japan. Mineral Petrol 40:241–256

    Google Scholar 

  • Schiffman P, Liou JG (1980) Synthesis and stability relations of Mg−Al pumpellyite, Ca4Al5MgSi6O21(OH)7. J Petrol 21:441–474

    Google Scholar 

  • Tagiri M, Oba T (1986) Hydrothermal syntheses of graphite from bituminous coal at 0.5–5 kbar water vapor pressure and 300–600°C. J Jpn Assoc Mineral Petrol Econ Geol 81:260–271

    Google Scholar 

  • Takasu A (1989) P-T histories of peridotite and amphibolite tectonic blocks in the Sanbagawa metamorphic belt, Japan. In: Daly JS, Cliff RA, Yardley BWD (eds) Evolution of metamorphic belts. Geol Soc Spec Publ 43, pp 533–538

  • Takasu A, Dallmcyer RD (1990) 40Ar−39Ar mineral age constraints for the tectonothermal evolution of the Sambagawa metamorphic belt, central Shikoku, Japan: a Cretaceous accretionary prism. Tectonophysics 185:111–139

    Google Scholar 

  • Takasu A, Dallmeyer RD (1992) 40Ar−39Ar mineral ages within metamorphic clasts from the Kuma Group (Eocene), central Shikoku, Japan: implications for tectonic development of the Sambagawa accretionary prism. Lithos 28:69–84

    Google Scholar 

  • Toriumi M (1975) Petrological study of the Sambagawa metamorphic rocks — the Kanto mountains, central Japan. Univ Mus Univ Tokyo Bull 9:1–99

    Google Scholar 

  • Wada H, Enami M, Yanagi T (1984) Isotopic, studics of marbles in the Sanbagawa metamorphic terrain, central Shikoku, Japan. Geochem J 18:61–73

    Google Scholar 

  • Wallis SR (1992) Vorticity analysis in a metachert from the Sanbagawa belt SW Japan. J Struct Geol 14:271–280

    Google Scholar 

  • Wallis SR, Banno S (1990) The Sanbagawa Belt — trends in research. J Mctamorphic Geol 8:393–399

    Google Scholar 

  • Wallis SR, Banno S, Radvanec M (1992) Kinematics, structure and relationship to metamorphism of the east-west flow in the Sanbagawa belt, southewest Japan. Island Are 1:176–185

    Google Scholar 

  • Watanabe T (1975) Aegirine-augite and sodic-augite from the, Sambagawa and the Chichibu Belts in the Oshika district, central Japan, with special reference to Na-metasomatism. J Fac Sci Hokkaido Univ Ser 416:519–532

    Google Scholar 

  • Watanabe T, Kobayashi H (1984) Occurrence of lawsonite in pelitic schists from the Sanbagawa metamorphic belt, central Shikoku, Japan. J Metamorphic Geol 2:365–369

    Google Scholar 

Download references

Author information

Author notes

  1. Yasuyuki Banno

    Present address: Geological Survey of Japan, 1-1-3 Higashi, 305, Tsukuba, Japan

Authors and Affiliations

  1. Department of Earth and Planetary Sciences, School of Science, Nagoya University, 464-01, Nagoya, Japan

    Masaki Enami & Yasuyuki Banno

  2. Department of Geology and Mineralogy, Faculty of Science, Kyoto University, 606, Kyoto, Japan

    Simon R. Wallis

Authors
  1. Masaki Enami
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Simon R. Wallis
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Yasuyuki Banno
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Enami, M., Wallis, S.R. & Banno, Y. Paragenesis of sodic pyroxene-bearing quartz schists: implications for the P-T history of the Sanbagawa belt. Contr. Mineral. and Petrol. 116, 182–198 (1994). https://doi.org/10.1007/BF00310699

Download citation

  • Received:

  • Accepted:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00310699

Keywords

Search

Navigation