The baric character of the Patagonian basement as deduced from the muscovite d 060,331 spacing: a first contribution from Eastern Andean Metamorphic Complex (Andes, Chile)
作者： Elisa Ramírez , Raffaele Sassi
DOI: 10.1127/0935-1221/2001/0013-1119
关键词: Metamorphism 、 Mica 、 High pressure 、 Muscovite 、 Geochemistry 、 Geomorphology 、 Geology 、 Metamorphic rock 、 Basement (geology) 、 Character (mathematics)
摘要: In this work we present new data concerning the pressure character of metamorphism in Aysen Eastern Andean Metamorphic Complex. The parameter d 060,331 K-white mica from basement politic rocks was measured as a barometric indicator. Three sample groups different areas were considered, for total 69 samples. All values suggest metamorphic setting characterised by intermediate to high pressure.
harvard.edu
geoscienceworld.org
sci-hub.se 参考文章(17)
F. P. Sassi, The petrological and geological significance of the b 0 values of potassic white micas in low-grade metamorphic rocks. An application to the Eastern Alps TMPM Tschermaks Mineralogische und Petrographische Mitteilungen. ,vol. 18, pp. 105- 113 ,(1972) , 10.1007/BF01081796
M Frey, D Robinson, Low temperature metamorphism ,(1987)
Derek York, Ronald M. Farquhar, The earth's age and geochronology ,(1972)
Ralph Kretz, Symbols for rock-forming minerals American Mineralogist. ,vol. 68, pp. 277- 279 ,(1983)
K. -H. Nitsch, Die Stabilität von Lawsonit Naturwissenschaften. ,vol. 55, pp. 388- 388 ,(1968) , 10.1007/BF00593292
J. H. Berg, J. A. Docka, Geothermometry in the Kiglapait contact aureole, Labrador American Journal of Science. ,vol. 283, pp. 414- 434 ,(1983) , 10.2475/AJS.283.5.414
F. P. Sassi, A. Scolari, The b 0 value of the potassic white micas as a barometric indicator in low-grade metamorphism of pelitic schists Contributions to Mineralogy and Petrology. ,vol. 45, pp. 143- 152 ,(1974) , 10.1007/BF00371166
D. M. Kerrick, Experiments on the upper stability limit of pyrophyllite at 1.8 kb and 3.9 kb water pressure American Journal of Science. ,vol. 266, pp. 204- 214 ,(1968) , 10.2475/AJS.266.3.204
R. Forsythe, The late Palaeozoic to early Mesozoic evolution of southern South America: a plate tectonic interpretation Journal of the Geological Society. ,vol. 139, pp. 671- 682 ,(1982) , 10.1144/GSJGS.139.6.0671
E. J. Essene, The current status of thermobarometry in metamorphic rocks Geological Society, London, Special Publications. ,vol. 43, pp. 1- 44 ,(1989) , 10.1144/GSL.SP.1989.043.01.02