Abstract
Several different metamorphic events — an early or prevariscian regional, a variscian contact and the alpine regional — on marbles from the Schlegeistal (Western Tauern Area, Tyrol, Austria) have resulted in a great variety of mineral assemblages. These assemblages include calcite, dolomite, tremolite, diopside, forsterite, clinohumite-titanianclinohumite-chondrodite, chlorite-serpentine, brucite, and boron minerals karlite and ludwigite.
Microprobe analysis fo the minerals indicate that three different generations of chlorite minerals exist (clinochlor, penninite, Al-serpentine). The occurence of these chlorites is explained by formation of serpentine component during the last (alpine) regional metamorphism from the breakdown of forsterite, humite-minerals and diopside. The phase relations are described in the system CaO-MgO-SiO2-H2O-CO2-HF and a petrogenetic grid for the low\(X_{{\text{CO}}_{\text{2}} }^{{\text{fluid}}}\) low X mineralF region is given. The reactions are typical for ophicarbonate rocks, but include clinohumite and chlorite, due to the presence of F and minor amounts of Al2O3.
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References
Ackermand D, Morteani G (1976) Kontinuierlicher und diskontinuierlicher Zonarbau in den Granaten der penninischen Gesteine der Zillertaler Alpen (Tirol/Österreich). Tschermaks Mineral Petrogr Mitt 23:117–136
Angenheister G, Bögel H, Gebrande H, Giese P, Schmidt-Thomé P, Zeil W (1972) Recent investigations of surficial and deeper crustal structures of the eastern and southern alps. Geol Rundsch 61:349–395
Aoki K, Fujino K, Akaogi M (1976) Titanchondrodite and titanclinohumite derived from the upper mantle in the Buell Park kimberlite, Arizona, USA. Contrib Mineral Petrol 56:243–253
Borg IY, Smith DK (1969) Calculated X-ray powder patterns for silicate minerals. Geol Soc Am Mem 122: Boulder/Colorado
Brown G (1961) The X-ray identification and crystal structures of clay minerals. Mineral Soc London, XI:544 p.
Christa E (1931) Das Gebiet des oberen Zemmgrundes in den Zillertaler Alpen. Jahrb Geol Bundesanst (Austria) 81:3/4, 534–636
Cliff RA (1971) The age of tonalites in the south-east Tauernfenster, Austrian Alps — Rb/Sr whole rock ages on some associated leucogranites. Neues Jahrb Geol Paleontol Monatsh 1971:655–669
Deer WA, Howie RA, Zussman J (1962) Rock-forming minerals, vol 3, Sheet silicates. Longman, London
Deer WA, Howie RA, Zussman J (1963) Rock-forming minerals, vol 2, Chain silicates. Longman, London
Franz G, Ackermand D, Koch E (1980) Karlite, Mg7(BO3)3(OH, Cl)5, a new borate mineral and associated Ludwigite from the eastern alps. Am Mineral (in preparation)
Fujino K, Takeachi Y (1978) Crystal chemistry of titan-chondrodite and titan-clinohumite of high pressure origin. Am Mineral 63:535–543
Gold DP (1966) The minerals of the Oka carbonatite and alkali complex, Oka, Quebec. Mineral Soc India, IMA vol (IMA Papers and Proc 4th gen meeting, New Delhi, 1964) 109–125
Goldsmith JR, Graf DL, Joensuu OJ (1955) The occurrence of magnesian calcite in nature. Geochim Cosmochim Acta 7:212–230
Hinthorne JR, Ribbe PH (1974) Determination of boron in chondrodite by ion microprobe mass analysis. Am Mineral 59:1123–1126
Hoernes S, Friedrichsen F (1974) Oxygen isotope studies on metamorphic rocks of the western Hohe Tauern (Austria). Schweiz Mineral Petrol, Mitt 54:769–788
Hoschek G (1979) Metamorphose kalkiger Metasedimente in den westlichen Hohen Tauern. Fortschr Mineral 57 (1):45
Jones NW, Ribbe PH, Gibbs GV (1969) Crystal chemistry of the humite minerals. Am Mineral 54:391–411
Magnusson NH (1940) The Herräng field and it's iron ores. Åresbok Sveriges Geol Undersökning 34 (1):1–72
Morteani G (1974) Petrology of the Tauern Window, Austrian Alps. Fortschr Mineral 52 (1):195–220
Ribbe PH (1979) Titanium, hydroxyl and fluorine in the humite minerals. Am Mineral 64:1027–1035
Rice JM (1980) Phase equilibria involving humite minerals in impure dolomitic limestones. Part I: Calculated stability of clinohumite. Contrib Mineral Petrol 71:219–235
Sander B (1911) Geologische Studien am Westende der Hohen Tauern (1. Bericht). Denkschr Akad Wiss Wien, Math Nat Kl 82:257–319
Schoell M, Morteani G, Hörmann PK (1975) 18O/16O and 13C/12C ratios of carbonates from gneisses, serpentinites and marbles of the Zillertaler Alpen, western Tauern Area (Austria). Neues Jahrb Mineral Monatsh 10:444–459
Shaw DM, Moxham RL, Filby RH, Lapkowsky WW (1963) The petrology and geochemistry of some Grenville skarns. Part II: Geochemistry. Can Mineral 7:578–616
Skippen G, Trommsdroff V (1975) Invariant phase relations among minerals on T-X fluid sections. Am J Sci 275:561–572
Tilley CE (1951) The zoned contact-skarns of the Broadford Area, Skye: A study of boron-fluorine metasomatism in Dolomites. Mineral Mag 29:621–666
Trommsdorff V, Evans BW (1972) Progressive metamorphism of antigorite schist in the Bergell Tonalite Aureole (Italy). Am J Sci 272:423–437
Trommsdorff V, Evans BW (1977a) Antigorite-ophicarbonates: Phase relations in a portion of the system CaO-MgO-SiO2-H2O-CO2. Contrib Mineral Petrol 60:39–56
Trommsdorff V, Evans BW (1977b) Antigorite-ophicarbonates: Contact metamorphism in Valmalenco, Italy. Contrib Mineral Petrol 62:301–312
Trommsdorff V, Evans BW (1980) Titan hydroxyl-clinohumite: Formation and breakdown in antigorite rocks (Malenco, Italy). Contrib Mineral Petrol 72:229–242
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Franz, G., Ackermand, D. Phase relations and metamorphic history of a clinohumite-chlorite-serpentine-marble from the Western Tauern Area (Austria). Contr. Mineral. and Petrol. 75, 97–110 (1980). https://doi.org/10.1007/BF00389771
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DOI: https://doi.org/10.1007/BF00389771