Skip to main content
SpringerLink
Log in

Metamorphic evolution of garnet-spinel peridotites from the Variscan Schwarzwald (Germany)

  • Original Paper
  • Published:
Geologische Rundschau Aims and scope Submit manuscript

Abstract

Garnet-spinel peridotites form small, isolated, variably retrogressed bodies within the low-pressure high-temperature gneisses and migmatites of the Variscan basement of the Schwarzwald, southwest Germany. Detailed mineralogical and textural studies as well as geothermobarometric calculations on samples from three occurrences are presented. Two of the garnet-spinel peridotites have equilibrated at 680–770°C, 1.4–1.8 GPa within the garnet-spinel peridotite stability field, one of the samples having experienced an earlier stage within the spinel peridotite stability field (790°C, <1.8 GPa). The third sample, with only garnet and spinel preserved, probably equilibrated within the garnet peridotite stability field at higher pressures. These findings are in line with the distinction of two groups of ultramafic garnet-bearing high-pressure rocks with different equilibration conditions within the Schwarzwald (670–740°C, 1.4–1.8 GPa and 740–850°C, 3.2–4.3 GPa) which has previously been established (Kalt et al. 1995). The equilibration conditions of 670–770°C and 1.4–1.8 GPa for garnet-spinel peridotites from the Central Schwarzwald Gneiss Complex (CSGC) are similar to those for eclogites of the Schwarzwald and also correspond quite well to those for garnet-spinel peridotites from the Moldanubian zone of the Vosges mountains and of ecologites from the Moldanubian s.str. of the Bohemian Massif.

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

  • Beard BL, Medaris LG, Johnson GM, Brueckner HK, M’sar Z (1992) Petrogenesis of Variscan high-temperature Group A eclogites from the Moldanubian zone of the Bohemian Massif, Czechoslovakia. Contrib Mineral Petrol 111:468–483

    Article  Google Scholar 

  • Becker H, Altherr R (1992) Evidence from ultra-high-pressure marbles for recycling of sediments into the mantle. Nature 358:745–748

    Article  Google Scholar 

  • Bertrand P, Mercier JMM (1985) The mutual solubility of coexisting ortho- and clinopyroxene: towards an absolute geothermometer for the natural system? Earth Planet Sci Lett 76:109–122

    Article  Google Scholar 

  • Blümel P (1983) The western margin of the Bohemian Massifin Bavaria. Fortschr Min 61:171–195

    Google Scholar 

  • Bonnot H, Piboule M (1980) Mise en évidence d’une dualité d’origine des ultrabasites a grenat du Limousin et recherche de la signification des péridotites d’origine mantellique dans le Massif Central français. Comptes Rend Acad Sci Paris 291 Ser D: 129–132

  • Brey GP (1989) Geothermobarometry for Iherzolites: Experiments from 10–60 kb, new thermometers and application to natural rocks. Unpubl Dr. habil. Thesis, University of Darmstadt

  • Brey GP, Köhler T (1990) Geothermobarometry in four-phase Iherzolites II. New thermobarometers, and practical assessment of existing thermobarometers. J Petrol 31:1353–1378

    Google Scholar 

  • Brey GP, Köhler T, Nickel G (1990) Geothermobarometry in four-phase Iherzolites I. Experimental results from 10 to 60 kb. J Petrol 31:1313–1352

    Google Scholar 

  • Carswell DA (1991) Variscan high P-T metamorphism and uplift history in the Moldanubian zone of the Bohemian Massifin Lower Austria. Eur J Mineral 3:323–342

    Google Scholar 

  • Carswell DA, O’Brien PJ (1993) Thermobarometry and geotectonic significance of high-pressure granulites: examples from the Moldanubian zone of the Bohemian Massifin Lower Austria. J Petrol 34:427–249

    Google Scholar 

  • Chakraborty S, Ganguly J (1991) Compositional zoning and cation diffusion in garnet. In: Ganguly J (ed) Diffusion, atomic ordering and mass transport. Springer, Berlin Heidelberg New York, pp 120–175

    Google Scholar 

  • Dudek A, Fediuková E (1974) Eclogites of the Bohemian Moldanubicum N Jahrb Min Abh 121:127–159

    Google Scholar 

  • Echtler HP, Chauvet A (1991/92) Carboniferous convergence and subsequent crustal extension in the southern Schwarzwald (SW Germany). Geodynam Acta 5:37–49

    Google Scholar 

  • Eisbacher GH, Lüschen E, Wickert F (1989) Thrusting and extension in the Hercynian Schwarzwald and Vosges, Central Europe. Tectonics 8:2–21

    Google Scholar 

  • Ernst WG (1978) Petrochemical study of Iherzolitic rocks from the western Alps. J Petrol 19:341–392

    Google Scholar 

  • Evans BW, Trommsdorff V (1978) Petrogenesis of garnet Iherzolite, Cima di Gagnone, Lepontine Alps. Earth Planet Sci Lett 40:333–348

    Article  Google Scholar 

  • Franke W (1989) Tectonostratigraphic units in the Variscan belt of central Europe. Geol Soc Am Spec Pap 230:67–90

    Google Scholar 

  • Ganguly J, Zazzoli V (1994) Fe2+-Mg interdiffusion in orthopyroxene:retrieval from the data on intercrystalline exchange reaction. Am Mineral 79:930–937

    Google Scholar 

  • Gasparik T (1987) Orthopyroxene thermometry in simple and complex systems. Contrib Mineral Petrol 96:357–370

    Article  Google Scholar 

  • Jamtveit B (1987a) Metamorphic evolution of the Eiksunddal eclogite complex, western Norway, and some tectonic implications. Contrib Mineral Petrol 95:82–99

    Article  Google Scholar 

  • Jamtveit B (1987b) Magmatic and metamorphic controls on chemical variations within the Eiksunddal eclogite complex, Sunnmøre, western Norway. Lithos 20:369–389

    Article  Google Scholar 

  • Kalt A, Grauert B, Baumann A (1994a) Rb-Sr and U-Pb studies on migmatites from the Schwarzwald (F.R.G.): constraints on isotopic resetting during high-temperature metamorphism. J Metam Geol 12:667–680

    Google Scholar 

  • Kalt A, Hanel M, Schleicher H, Kramm U (1994b) Petrology and geochronology of eclogites from the Variscan Schwarzwald (F.R.G.). Contrib Mineral Petrol 115:287–302

    Article  Google Scholar 

  • Kalt A, Altherr R, Hanel M (1995) Contrasting P-T conditions recorded in ultramafic high-pressure rocks from the Variscan Schwarzwald. Contrib Mineral Petrol 121:45–60

    Article  Google Scholar 

  • Lasnier B (1971) Les péridotites et pyroxénolites à grenat du Bois des Feuilles (Monts du Lyonnais) (France). Contrib Mineral Petrol 34:29–41

    Article  Google Scholar 

  • Latouche L, Fabriès J, Guiraud M (1992) Retrograde evolution in the Central Vosges mountains (northeastern France):implications for the metamorphic history of high-grade rocks during the Variscan orogeny. Tectonophysics 205:387–407

    Article  Google Scholar 

  • Leake BA (1978) Nomenclature of amphiboles. Can Mineral 16:501–520

    Google Scholar 

  • Medaris LG, Carswell DA (1990) Petrogenesis of Mg-Cr garnet peridotites in European metamorphic belts. In: Carswell DA (ed) Eclogite facies rocks. Blackie, Glasgow London, pp 260–290

    Google Scholar 

  • Medaris LG, Wang HF, M’sar Z, Jel’nek E (1990) Thermobarometry, diffusion modelling and cooling rates of crustal garnet peridotites: two examples from the Moldanubian zone of the Bohemian Massif. Lithos 25:189–202

    Article  Google Scholar 

  • Medaris LG, Beard BL, Johnson CM, Valley JW, Spicuzza MJ, Jel’nek E, Misar Z (1995a) Garnet pyroxenite and eclogite in the Bohemian Massif: geochemical evidence for Variscan recycling of subducted lithosphere. Geol Rundsch 84:489–505

    Article  Google Scholar 

  • Medaris LG, Jel’nek E, Misar Z (1995b) Czech eclogites: terrane settings and implications for Variscan tectonic evolution of the Bohemian Massif. Eur J Mineral 7:7–28

    Google Scholar 

  • Morioka M, Nagasawa H (1991) Ionic diffusion in olivine. In: Ganguly J (ed) Diffusion, atomic ordering and mass transport. Springer, Berlin Heidelberg New York, pp 176–197

    Google Scholar 

  • Nickel KG (1983) Petrogenesis of garnet and spinel peridotites. A study with particular reference to the role of chromium in geothermometry and geobarometry. PhD thesis, University of-Tasmania

  • Nickel KG (1986) Phase equilibria in the system SiO2-MgO-Al2O3-CaO-Cr2O3(SMACCR) and their bearing on spinel/garnet lherzolite relationships. N Jahrb Min Abh 155:259–287

    Google Scholar 

  • O’Brien PJ (1989) The petrology of retrograded eclogites of the Oberpfalz Forest, NE Bavaria, West Germany. Tectonophysics 157:195–212

    Article  Google Scholar 

  • O’Brien PJ (1991) A multistage metamorphic evolution in eclogites from the Mariánské Lázne complex, NW Bohemia, Czechoslovakia: the implications for uplift mechanisms. Terra Abstr 3:93

    Google Scholar 

  • O’Brien PJ (1993) Partially retrograded eclogites of the Münchberg Massif, Germany: records of a multistage Variscan uplift history in the Bohemian Massif. J Metam Geol 11:241–260

    Google Scholar 

  • O’Brien PJ, Carswell DA (1993) Tectonometamorphic evolution of the Bohemian Massif:evidence from high-pressure metamorphic rocks. Geol Rundsch 82:531–555

    Article  Google Scholar 

  • O’Brien PJ, Vrána S (1995) Eclogites with a short-lived granulite facies overprint in the Moldanubian zone, Czech Republic:petrology, geochemistry and diffusion modelling of garnet zoning. Geol Rundsch 84:473–488

    Article  Google Scholar 

  • O’Brien PJ, Röhr C, Okrusch M, Patzak M (1992) Eclogite facies relics and a multistage breakdown in metabasites of the KTB pilot hole, NE Bavaria: implications for the Variscan tectonometamorphic evolution in the NW Bohemian Massif. Contrib Mineral Petrol 112:261–278

    Article  Google Scholar 

  • O’Neill HStC (1981) The transition between spinel lherzolite and garnet lherzolite, and its use as a geobarometer. Contrib Mineral Petrol 77:185–194

    Article  Google Scholar 

  • Obata M (1980) The Ronda peridotite: garnet-, spinel-, and plagioclase-lherzolite facies and the P-T trajectories of a high-temperature mantle intrusion. J Petrol 21:533–572

    Google Scholar 

  • Obata M, Morten L (1987) Transformation of spinel lherzolite to garnet lherzolite in ultramafic lenses of the Austridic Crystalline Complex, northern Italy. J Petrol 28:599–623

    Google Scholar 

  • Rey P, Burg JP, Lardeaux JM, Fluck P (1989) Evolutions métamorphiques contrastées dans les Vosges orientales: témoins d’un charriage dans la chaine varisque. Comptes Rend Acad Sci Paris 309 (2):825–821

    Google Scholar 

  • Sachtleben T, Seck HA (1981) Chemical control of Al-solubility in orthopyroxene and its implication on pyroxene geothermometry. Contrib Mineral Petrol 78:157–165

    Article  Google Scholar 

  • Stenger R, Baatz K, Klein H, Wimmenauer W (1989) Metamorphic evolution of the pre-Hercynian basement of the Schwarzwald (Federal Republic of Germany). Tectonophysics 157:117–121

    Article  Google Scholar 

  • Todt W (1976) Zirkon U/Pb-Alter des Malsburg-Granits vom Südschwarzwald. N Jahrb Min Mh 12:929–955

    Google Scholar 

  • Webb SAC, Wood BJ (1986) Spinel-pyroxene-garnet relationships and their dependence on Cr/Al ratio. Contrib Mineral Petrol 92:471–480

    Article  Google Scholar 

  • Wendt I, Lenz H, Höhndorf A (1974) Das Alter des Bärhalde-Granites (Schwarzwald) und der Uran-Lagerstätte Menzenschwand. Geol Jahrb E2:131–143

    Google Scholar 

  • Wimmenauer W (1980) Lithology of the Precambrian in the Schwarzwald. An interim report. N Jahrb Min Mh: 364–372

  • Wimmenauer W, Stenger R (1989) Acid and intermediate HP metamorphic rocks in the Schwarzwald (Federal Republic of Germany). Tectonophysics 157:109–116

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Mineralogisches Institut, Universität Heidelberg, Im Neuenheimer Feld 236, D-69120, Heidelberg, Germany

    A. Kalt & R. Altherr

Authors
  1. A. Kalt
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. R. Altherr
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to A. Kalt.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Kalt, A., Altherr, R. Metamorphic evolution of garnet-spinel peridotites from the Variscan Schwarzwald (Germany). Geol Rundsch 85, 211–224 (1996). https://doi.org/10.1007/BF02422229

Download citation

  • Received:

  • Accepted:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02422229

Key words

Search

Navigation