 | | Journal (article/letter/editorial) | | Conditions of metamorphism in an Early Paleozoic blueschist, Schist of Skookum Gulch, northern California...pre-Mesozoic blueschist localities in North America. Among these, the Skookum Gulch occurrence is noteworthy...and in the North Cascades of Washington and British Columbia (Armstrong et al. 1983). Many pre-Mesozoic...to polyphase deformation and polymetamorphism. Blueschist from the schist of Skookum Gulch appears to be...temperature blueschist and contains no textural evidence of polymetamorphism. Thus, this blueschist appears |  | Majka, JarosĹ‚aw, Mazur, StanisĹ‚aw, KoĹ›miĹ„ska, Karolina, Dudek, Krzysztof, Klonowska, Iwona (2016) Pressure–temperature estimates of the blueschists from the Kopina Mt., northern Bohemian Massif, Poland – constraints on subduction of the Saxothuringian continental margin. European Journal of Mineralogy, 28 (6) 1047-1057 doi:10.1127/ejm/2016/0028-2601 | Journal (article/letter/editorial) | | 1, 31-002 KrakĂłw, Poland Abstract: The blueschist occurrence at the Kopina Mt. is situated at the eastern...estimates of P–T conditions recorded by the Kopina blueschist were largely missing. Therefore, we aimed at...localities (Figs. 2 and 3). However, the Kopina Mt. occurrence is a unique outcrop, where a HP assemblage contains...phase. The P–T estimates so far available for the blueschist-facies rocks are those provided by Faryad & KachlĂk...unit in the east orogeny. We studied the Kopina blueschist as a unique lithology in the area that comprises |  | | Journal (article/letter/editorial) | | destabilisation of phengite may occur at the blueschist to eclogite transition (e.g. Sorensen et al....exhumation, fluids can still overprint eclogite and blueschist facies rocks that were dehydrated during subduction...de Groix, a well-known late Palaeozoic blueschist occurrence (e.g. Triboulet, 1974; Carpenter, 1976;...two metamorphic phases are recognised: 1) the blueschist to eclogite facies metamorphism M1 which is related...metamorphic assemblages. Eclogites, and epidote-blueschist facies rocks are common on the eastern part of |  | | Report (issue) | | Nelson-__________-___-___________-_-----_--_--Lawsonite blueschist from north-central Oregon, by D. A. Swanson_...____________________________________________ Occurrence and movement of ground water in the Brunswick...quartz, biotite, garnet, and magnetite; sphene and apatite commonly are present in trace amounts. Rarely,...about 8 percent biotite, some opaque minerals, apatite, garnet, and sphene. Chlorite is incipiently developed...fo-ming felsic streaks. Minor amounts of biotite, apatite, magnetite, and epidote, and traces of both calcite |
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