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Franciscan eclogite revisited: Reevaluation of the P–T evolution of tectonic blocks from Tiburon Peninsula, California, U.S.A.

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Summary

High-grade blocks in the Franciscan complex at Tiburon, California, record relatively low temperature eclogite-facies metamorphism and blueschist-facies overprinting. The eclogite-facies mineral assemblage contains prograde-zoned garnet + omphacite + epidote ± hornblende (katophoritic and barroisitic Ca–Na amphibole) ± glaucophane + phengite (∼3.5 Si p.f.u.) ± paragonite + rutile + quartz. The blueschist-facies mineral assemblage contains chlorite + titanite + glaucophane + epidote ± albite ± phengite (∼3.3 Si p.f.u.). Albite is not stable in the eclogite stage. New calculations based on garnet-omphacite-phengite thermobarometry and THERMOCALC average-P–T calculations yield peak eclogite-facies P–T conditions of P = 2.2–2.5 GPa and T = 550–620 °C; porphyroclastic omphacite with inclusions of garnet and paragonite yields an average-P–T of 1.8 ± 0.2 GPa at 490 ± 70 °C for the pre-peak stage. The inferred counterclockwise hairpin P–T trajectory suggests prograde eclogitization of a relatively “cold” subducting slab, and subsequent exhumation and blueschist-facies recrystallization by a decreasing geotherm. Although an epidote-garnet amphibolitic assemblage is ubiquitous in some blocks, P–T pseudosection analyses imply that the epidote-garnet amphibolitic assemblage is stable during prograde eclogite-facies metamorphism. Available geochronologic data combined with our new insight for the maximum pressure suggest an average exhumation rate of ∼5 km/Ma, as rapid as those of some ultrahigh pressure metamorphic terranes.

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References

  • B Anczkiewicz JP Platt MF Thirlwall J Wakabayashi (2004) ArticleTitleFranciscan subduction off to a slow start: evidence from high-precision Lu–Hf garnet ages on high grade-blocks Earth Planet Sci Lett 225 147–161 Occurrence Handle10.1016/j.epsl.2004.06.003

    Article  Google Scholar 

  • JT Armstrong (1988) Quantitative analysis of silicate and oxide minerals: comparison of Monte Carlo, ZAF and Phi-Rho-Z procedure DE Newbury (Eds) Analysis Microbeam San Francisco Press California 239–246

    Google Scholar 

  • S Banno H Shibakusa M Enami CL Wang WG Ernst (2000) ArticleTitleChemical fine structure of Franciscan jadeitic pyroxene from Ward Creek, Cazadero area, California Am Mineral 85 1795–1798

    Google Scholar 

  • Blake MC Jr., Jayko AS, McLaughlin RJ, Underwood MB (1988) Metamorphic and tectonic evolution of the Franciscan Complex, northern California. In: Ernst WG (ed) Metamorphism and crustal evolution of the western United States, Rubey Volume VII, pp 1035–1060

  • CJ Carson R Powell GL Clarke (1999) ArticleTitleCalculated mineral equilibria for eclogites in CaO–Na2O–FeO–MgO–Al2O3–SiO2–H2O: application to the Pouébo Terrane, Pam Peninsula, New Caledonia J Metamorph Geol 17 9–24 Occurrence Handle10.1046/j.1525-1314.1999.00177.x

    Article  Google Scholar 

  • CJ Carson GL Clarke R Powell (2000) ArticleTitleHydration of eclogite, Pam Peninsula, New Caledonia J Metamorph Geol 18 79–90 Occurrence Handle10.1046/j.1525-1314.2000.00245.x

    Article  Google Scholar 

  • DA Carswell PJ Obrien RN Wilson M Zhai (1997) ArticleTitleThermobarometry of phengite-bearing eclogites in the Dabie Mountains of central China J Metamorph Geol 15 239–252 Occurrence Handle10.1111/j.1525-1314.1997.00014.x

    Article  Google Scholar 

  • EJ Catlos SS Sorensen (2003) ArticleTitlePhengite-based chronology of K- and Ba-rich fluid flow in two paleosubduction zones Science 299 92–95 Occurrence Handle10.1126/science.1076977

    Article  Google Scholar 

  • GL Clarke JC Aitchison D Cluzel (1997) ArticleTitleEclogites and blueschists of the Pam Peninsula, NE New Caledonia: a reappraisal J Petrol 38 843–876 Occurrence Handle10.1093/petrology/38.7.843

    Article  Google Scholar 

  • RG Coleman MA Lanphere (1971) ArticleTitleDistribution and age of high-grade blueschists associated eclogites, and amphibolites from Oregon and California Geol Soc Am Bull 82 2397–2412

    Google Scholar 

  • RG Coleman DE Lee LB Beatty WW Brannock (1965) ArticleTitleEclogites and eclogites: their differences and similarities Geol Soc Am Bull 76 486–508

    Google Scholar 

  • DJ Ellis DH Green (1979) ArticleTitleAn experimental study of the effect of Ca upon garnet-clinopyroxene Fe–Mg exchange equilibria Contrib Mineral Petrol 71 13–22 Occurrence Handle10.1007/BF00371878

    Article  Google Scholar 

  • WG Ernst (1988) ArticleTitleTectonic history of subduction zones inferred from retrograde blueschist P–T paths Geology 16 1081–1084 Occurrence Handle10.1130/0091-7613(1988)016<1081:THOSZI>2.3.CO;2

    Article  Google Scholar 

  • BW Evans (1990) ArticleTitlePhase relations of epidote-blueschists Lithos 25 3–23 Occurrence Handle10.1016/0024-4937(90)90003-J

    Article  Google Scholar 

  • M Frey C de Capitani JG Liou (1991) ArticleTitleA new petrogenetic grid for low-grade metabasites J Metamorph Geol 9 497–509

    Google Scholar 

  • Fryer P, Lockwood JP, Becker N, Phipps S, Todd CS (2000) Significance of serpentine mud volcanism in convergent margins: In: Dilek Y, Moores EM, Elthon D, Nicolas A (eds) Ophiolites and Oceanic Crust: New Insights from Field Studies and the Ocean Drilling Program, Geol Soc Am Spec Paper 349, pp 35–51

  • BB Hanan DL Kimbrough PR Renne (1992) ArticleTitleThe Stonyford Volcanic Complex: a Jurassic seamount in the Northern California Coast Ranges Am Assoc Petroleum Geol Bull 76 421–432

    Google Scholar 

  • Harlow GE (1999) Interpretation of Kcpx and CaEs components in clinopyroxene from diamond inclusions and mantle samples. In: Gurney JJ, Gurney JL, Pascoe MD, Richardson SH (eds) Proceedings of Seventh International Kimberlite Convention, Vol. I. Redroof Design Cc, Cape Town, pp 321–331

  • OD Hermes (1973) ArticleTitleParagenetic relationships in an amphibolitic tectonic block in the Franciscan terrain, Panoche Pass, California J Petrol 14 1–32

    Google Scholar 

  • TJB Holland (1979) ArticleTitleThe experimental determination of the reaction paragonite = jadeite + kyanite + H2O and internally consistent thermodynamic data for part of the system Na2O–Al2O3–SiO2–H2O, with applications to eclogites and blueschists Contrib Mineral Petrol 68 293–301 Occurrence Handle10.1007/BF00371551

    Article  Google Scholar 

  • TJB Holland R Powell (1998) ArticleTitleAn internally consistent thermodynamic data set for phases of petrological interest J Metamorph Geol 19 309–343 Occurrence Handle10.1111/j.1525-1314.1998.00140.x

    Article  Google Scholar 

  • CA Hopson EA Pessagno SuffixJr JM Mattinson BP Luyendyk W Beebe DM Hull IM Munoz CD Blome (1996) ArticleTitleCoast Range ophiolite as paleoequatorial mid-ocean lithosphere GSA Today 6 3–4

    Google Scholar 

  • G Hoschek (2001) ArticleTitleThermobarometry of metasediments and metabasites from the Eclogite zone of the Hohe Tauern, Eastern Alps, Austria Lithos 59 127–150 Occurrence Handle10.1016/S0024-4937(01)00063-9

    Article  Google Scholar 

  • G Hoschek (2004) ArticleTitleComparison of calculated P–T pseudosections for a kyanite eclogite from the Tauern Window, Eastern Alps, Austria Eur J Mineral 16 59–72 Occurrence Handle10.1127/0935-1221/2004/0016-0059

    Article  Google Scholar 

  • R Kretz (1983) ArticleTitleSymbols for rock-forming minerals Am Mineral 68 277–279

    Google Scholar 

  • EJ Krogh CW Oh JG Liou (1994) ArticleTitlePolyphase and anticlockwise P–T evolution for Franciscan eclogites and blueschists from Jenner, California, USA J Metamorph Geol 12 121–134

    Google Scholar 

  • E Krogh Ravna (2000) ArticleTitleThe garnet-clinopyroxene Fe2+–Mg geothermometer: an updated calibration J Metamorph Geol 18 211–219 Occurrence Handle10.1046/j.1525-1314.2000.00247.x

    Article  Google Scholar 

  • E Krogh Ravna MP Terry (2004) ArticleTitleGeothermobarometry of UHP and HP eclogites and schists – an evaluation of equilibria among garnet-clinopyroxene-kyanite-phengite-coesite/quartz J Metamorph Geol 22 579–592 Occurrence Handle10.1111/j.1525-1314.2004.00534.x

    Article  Google Scholar 

  • BE Leake AR Woolley CES Arps WD Birch MC Gilbert JD Grice FC Hawthorne A Kato HJ Kisch VG Krivovichev K Linthout J Laird JA Mandarino WV Maresch EH Nickel NMS Rock JC Schumacher DC Smith NCN Stephenson L Ungaretti EJW Whittaker YZ Guo (1997) ArticleTitleNomenclature of amphiboles: Report of the subcommittee on amphiboles of the International Mineralogical Association, commission on new minerals and mineral names Am Mineral 82 9–10

    Google Scholar 

  • B LeVay DM Kerrick (2005) ArticleTitleThermodynamic computation of eclogite phase equilibria: The key role of redox state Mitt Österr Miner Ges 150 86

    Google Scholar 

  • JG Liou (1971) ArticleTitleP–T Stabilities of laumontite, wairakite, lawsonite, and related minerals in System CaAl2Si2O8–SiO2–H2O J Petrol 12 379–411

    Google Scholar 

  • JG Liou T Tsujimori RY Zhang I Katayama S Maruyama (2004) ArticleTitleGlobal UHP metamorphism and continental subduction/collision: The Himalayan model Int Geol Rev 46 1–27

    Google Scholar 

  • Maruyama S, Cho M, Liou JG (1986) Experimental investigations of blueschist-greenschist transition equilibrium: Pressure dependence of Al2O3 contents in sodic amphiboles – a new geobarometer. In: Evans BW, Brown EH (eds) Blueschist and Eclogites, Geol Soc Am Memoir 164, pp 1–16

  • HJ Massonne W Schreyer (1987) ArticleTitlePhengite geobarometry based on the limiting assemblage with K-feldspar, phlogopite, and quartz Contrib Mineral Petrol 96 212–224 Occurrence Handle10.1007/BF00375235

    Article  Google Scholar 

  • M Matsumoto S Wallis M Aoya M Enami J Kawano Y Seto N Shimobayashi (2003) ArticleTitlePetrological constraints on the formation conditions and retrograde P–T path of the Kotsu eclogite unit, central Shikoku J Metamorph Geol 21 363–376

    Google Scholar 

  • CG Mattinson RY Zhang T Tsujimori JG Liou (2004) ArticleTitleEpidote-rich talc-kyanite-phengite eclogites, Sulu terrane, eastern China: P–T-f(O2) estimates and the significance of the epidote-talc assemblage in eclogite Am Mineral 89 1772–1783

    Google Scholar 

  • JM Mattinson CA Hopson (1992) ArticleTitleU–Pb ages of the Coast Range ophiolite: a critical reevaluation based on new high-precision Pb–Pb ages Am Assoc Petroleum Geol Bull 76 425

    Google Scholar 

  • DE Moore (1984) ArticleTitleMetamorphic history of a high-grade blueschist exotic block from the Franciscan Complex, California J Petrol 25 126–150

    Google Scholar 

  • DE Moore MC Blake SuffixJr (1989) ArticleTitleNew evidence for polyphase metamorphism of glaucophane schist and eclogite exotic blocks in the Franciscan Complex, California and Oregon J Metamorph Geol 7 211–228

    Google Scholar 

  • CW Oh JG Liou (1990) ArticleTitleMetamorphic evolution of two different eclogites in the Franciscan Complex, California, U.S.A Lithos 25 41–53 Occurrence Handle10.1016/0024-4937(90)90005-L

    Article  Google Scholar 

  • DRM Pattison (2003) ArticleTitlePetrogenetic significance of orthopyroxene-free garnet + clinopyroxene + plagioclase ± quartz-bearing metabasites with respect to the amphibolite and granulite facies J Metamorph Geol 21 21–34 Occurrence Handle10.1046/j.1525-1314.2003.00415.x

    Article  Google Scholar 

  • SM Peacock K Wang (1999) ArticleTitleSeismic consequences of warm, versus cool subduction metamorphism: examples from Southwest and Northeast Japan Nature 286 937–939

    Google Scholar 

  • S Poli MW Schmidt (1997) ArticleTitleThe high-pressure stability of hydrous phases in orogenic belts: an experimental approach on eclogite-forming processes Tectonophys 273 169–184 Occurrence Handle10.1016/S0040-1951(96)00293-4

    Article  Google Scholar 

  • R Powell TJB Holland B Worley (1998) ArticleTitleCalculating phase diagrams involving solid solutions via non-linear equations, with examples using THERMOCALC J Metamorph Geol 16 577–588 Occurrence Handle10.1111/j.1525-1314.1998.00157.x

    Article  Google Scholar 

  • GRF Rad GTR Droop S Amini M Moazzen (2005) ArticleTitleEclogites and blueschists of the Sistan Suture Zone, eastern Iran: a comparison of P–T histories from a subduction melange Lithos 84 1–24 Occurrence Handle10.1016/j.lithos.2005.01.007

    Article  Google Scholar 

  • FL Ransome (1894) ArticleTitleOn lawsonite, a new rock forming mineral from the Tiburon Peninsula, Marin County, California Univ California Dept Geol Sci Bull 1 301–312

    Google Scholar 

  • JA Ross WD Sharp (1988) ArticleTitleThe effects of sub-blocking temperature metamorphism on the K/Ar systematics of hornblendes: 40Ar/39Ar dating of polymetamorphic garnet amphibolite from the Franciscan Complex, California Contrib Mineral Petrol 100 213–221 Occurrence Handle10.1007/BF00373587

    Article  Google Scholar 

  • A Saha AR Basu J Wakabayashi GL Wortman (2005) ArticleTitleGeochemical evidence for a subducted infant arc in Franciscan high-grade-metamorphic tectonics blocks Geol Soc Am Bull 117 1318–1335 Occurrence Handle10.1130/B25593.1

    Article  Google Scholar 

  • Schliestedt M (1990) Occurrences and stability conditions of low-temperature eclogites. In: Carswell DA (ed) Eclogite Facies Rocks, pp 160–179

  • Shervais JW (1990) Island arc and ocean crust ophiolites; contrasts in the petrology, geochemistry and tectonic style of ophiolite assemblages in the California Coast Ranges. In: Malpas JC, Moores EM, Panayiotou A, Xenophontos C (eds) Ophiolites, oceanic crustal analogues: Proceedings of the Symposium “Troodos 1987”, Nicosia, Cyprus, Geol Surv Dept, Ministry of Agriculture and Natural Resources, pp 507–520

  • JW Shervais BL Murchey DL Kimbrough PR Renne B Hanan (2005) ArticleTitleRadioisotopic and biostratigraphic age relations in the Coast Range Ophiolite, northern California: Implications for the tectonic evolution of the Western Cordillera Geol Soc Am Bull 117 633–653 Occurrence Handle10.1130/B25443.1

    Article  Google Scholar 

  • H Shibakusa H Maekawa (1997) ArticleTitleLawsonite-bearing eclogitic metabasites in the Cazadero area, northern California Mineral Petrol 61 163–180 Occurrence Handle10.1007/BF01172482

    Article  Google Scholar 

  • P Tropper CE Manning (2004) ArticleTitleParagonite stability at 700 °C in the presence of H2O–NaCl fluids: constraints on H2O activity and implications for high-pressure metamorphism Contrib Mineral Petrol 147 740–749 Occurrence Handle10.1007/s00410-004-0588-9

    Article  Google Scholar 

  • T Tsujimori (2002) ArticleTitlePrograde and retrograde P–T paths of the Late Paleozoic glaucophane eclogite from the Renge metamorphic belt, Hida Mountains, Southwestern Japan Int Geol Rev 44 797–818

    Google Scholar 

  • T Tsujimori A Ishiwatari (2002) ArticleTitleGranulite facies relics in the early Paleozoic kyanite-bearing ultrabasic metacumulate in the Oeyama belt, the inner zone of southwestern Japan Gondwana Res 5 823–835 Occurrence Handle10.1016/S1342-937X(05)70916-3

    Article  Google Scholar 

  • T Tsujimori T Itaya (1999) ArticleTitleBlueschist-facies metamorphism during Paleozoic orogeny in southwestern Japan: phengite K–Ar ages of blueschist-facies tectonic blocks in a serpentinite melange beneath Early Paleozoic Oeyama ophiolite Island Arc 8 190–205 Occurrence Handle10.1046/j.1440-1738.1999.00231.x

    Article  Google Scholar 

  • T Tsujimori JG Liou (2004a) ArticleTitleCoexisting chromian omphacite and diopside in tremolite schist from the Chugoku Mountains, SW Japan: The effect of Cr on the omphacite-diopside immiscibility gap Am Mineral 89 7–14

    Google Scholar 

  • T Tsujimori JG Liou (2004b) ArticleTitleMetamorphic evolution of kyanite-staurolite-bearing epidote-amphibolite from the Early Paleozoic Oeyama belt, SW Japan J Metamorph Geol 22 301–313 Occurrence Handle10.1111/j.1525-1314.2004.00515.x

    Article  Google Scholar 

  • T Tsujimori JG Liou (2005) ArticleTitleEclogite-facies mineral inclusions in clinozoisite from Paleozoic blueschist, central Chugoku Mountains, southwest Japan: Evidence of regional eclogite-facies metamorphism Int Geol Rev 47 215–232

    Google Scholar 

  • T Tsujimori JG Liou RG Coleman (2005) ArticleTitleCoexisting retrograde jadeite and omphacite in a jadeite-bearing lawsonite eclogite from the Motagua fault zone, Guatemala Am Mineral 90 836–842 Occurrence Handle10.2138/am.2005.1699

    Article  Google Scholar 

  • Tsujimori T, Liou JG, Coleman RG (2006) Finding of high-grade tectonic blocks from the New Idria serpentinite body, Diablo Range, California: Petrologic constraints on the tectonic evolution of an active serpentinite diapir. In: Cloos M, Carlson WD, Gilbert MC, Liou JG, Sorensen SS (eds) Convergent Margin Terranes and Associated Regions – a tribute to W. G. Ernst, Geol Soc Am Spec Paper

  • T Tsujimori K Matsumoto (2006) ArticleTitleP–T pseudosection of a glaucophane-epidote eclogite from Omi serpentinite melange, SW Japan: a preliminary report J Geol Soc Japan 112 407–414

    Google Scholar 

  • J Wakabayashi (1987) ArticleTitleAmphibolite grade metamorphism of Franciscan rocks from the San Francisco Bay Area, California Geol Soc Am Abst Program 19 460

    Google Scholar 

  • J Wakabayashi (1990) ArticleTitleCounterclockwise P–T-t paths from amphibolites, Franciscan Complex, California: Metamorphism during the early stages of subduction J Geol 98 657–680

    Google Scholar 

  • J Wakabayashi (1992) ArticleTitleNappes, tectonics of oblique plate convergence, and metamorphic evolution related to 140 million years of continuous subduction, Franciscan Complex, California J Geol 100 19–40 Occurrence Handle10.1086/629569

    Article  Google Scholar 

  • J Wakabayashi (1999) ArticleTitleSubduction and the rock record: Concepts developed in the Franciscan Complex, California Geol Soc Am Spec Paper 338 123–133

    Google Scholar 

  • Wakabayashi J, Dilek Y (2003) What constitutes “emplacement” of an ophiolite?: mechanisms and relationship to subduction initiation and formation of metamorphic soles. In: Dilek Y, Robinson PT (eds) Ophiolites in Earth history, Geol Soc London Spec Publ 218, pp 427–447

  • D Waters HN Martin (1993) ArticleTitleThe garnet-clinopyroxene-phengite barometer Terra Abst 5 410–411

    Google Scholar 

  • C Wei R Powell LF Zhang (2003) ArticleTitleEclogites from the south Tianshan, NW China: petrological characteristic and calculated mineral equilibria in the Na2O–CaO–FeO–MgO–Al2O3–SiO2–H2O system J Metamorph Geol 21 163–179 Occurrence Handle10.1046/j.1525-1314.2003.00435.x

    Article  Google Scholar 

  • TM Will M Okrusch E Schmädicke G Chen (1998) ArticleTitlePhase relations in the greenschist-blueschist-amphibolite-eclogite facies in the system Na2O–CaO–FeO–MgO–Al2O3–SiO2–H2O (NCFMASH), with applications to the P–T-evolution of metamorphic rocks from Samos, Greece Contrib Mineral Petrol 132 85–102 Occurrence Handle10.1007/s004100050406

    Article  Google Scholar 

  • Zhang RY, Liou JG, Tsujimori T, Maruyama S (2006) Non-UHP unit bordering the Sulu UHP terrane, eastern China: Transformation of Proterozoic granulite and gabbro to garnet amphibolite. In: Hacker BR, McClelland W, Liou JG (eds) Ultrahigh-Pressure Metamorphism: Deep Continental Subduction. Geol Soc Am Spec Paper, pp 169–207

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  1. Department of Geological and Environmental Sciences, Stanford University, Stanford, California, U.S.A.

    T. Tsujimori & J. G. Liou

  2. Department of Geology and Mineralogy, Graduate School of Science, Kyoto University, Kyoto, Japan

    K. Matsumoto

  3. Department of Earth and Environmental Sciences, California State University, Fresno, California, U.S.A.

    J. Wakabayashi

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Tsujimori, T., Matsumoto, K., Wakabayashi, J. et al. Franciscan eclogite revisited: Reevaluation of the P–T evolution of tectonic blocks from Tiburon Peninsula, California, U.S.A.. Mineralogy and Petrology 88, 243–267 (2006). https://doi.org/10.1007/s00710-006-0157-1

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