 | | 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...varies from ferro-glaucophane, glaucophane, and crossite (_+magnetite) to magnesio-riebeckite ( + hematite)...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 |  | | Journal (article/letter/editorial) | | – 19 www.elsevier.com/locate/lithos A relict blueschist in meta-ophiolite from the central Norwegian...Throughout the Caledonian – Appalachian orogen, blueschist occurrences in ophiolites of Early – Middle Ordovician...Iapetus Ocean margin. We describe herein the first occurrence of glaucophane relics within an Early Ordovician...Trondheim Nappe Complex. The rock contains a relict blueschist assemblage of glaucophane, epidote, and rutile...greenschist-facies conditions. The existence of blueschist in meta-ophiolite from mainland Scandinavia is |  | Hunziker, D., Burg, J.-P., Moulas, E., Reusser, E., Omrani, J. (2017) Formation and preservation of fresh lawsonite: Geothermobarometry of the North Makran Blueschists, southeast Iran. Journal of Metamorphic Geology, 35 (8) 871-895 doi:10.1111/jmg.12259 | Journal (article/letter/editorial) | | Cretaceous closure of the Tethys Ocean. The largest blueschist outcrop is a >1000 m thick coherent unit with...interlayered metabasalts and metavolcanoclastic rocks. Blueschist metamorphism is only incipient in coarse grained...metamorphic recrystallization. The low variance blueschist peak assemblage is glaucophane, lawsonite, titanite...and rutile assemblages before entering into the blueschist facies and finally following a retrograde path...metamorphism; counterclockwise P-T path 1. INTRODUCTION Blueschist-facies rocks are markers of fossil subduction |  | 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...U.S. Route 64, about 0.55 mile from east edge of Lake Toxaway TVa-mirute quadrangle, North Carolina. Part... GEOLOGICAL SURVEY RESEARCH 1969 LAWSONITE BLUESCHIST FROM NORTH-CENTRAL OREGON By DONALD A. SWANSCK...Hawaii National Park, Hawaii Abstract. Lawsonite blueschist crops out in two windows of pre-Albian metamorphic |
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