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keratophyre

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keratophyre
keratophyre Petrogr. (ˈkɛrətəfaɪə(r)) [ad. G. keratophyr (C. W. Gümble Die paläolith. Eruptivgesteine des Fichtelgebirges (1874) 44), f. kerato-: see -phyre.] (See quot. 1972.)1889 Geol. Mag. Feb. 71 Microscopical examination and chemical analysis show that these rocks consist, in part at least, of ... Oxford English Dictionary
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Keratophyre
Keratophyre is a volcanic rock of intermediate composition. Keratophyre tuff of Early Devonian age occurs in Sauerland (Germany). wikipedia.org
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Fidalgo ophiolite
The sedimentary sequence consists of volcanic keratophyre and spilite interbedded with greywacke and argillite. wikipedia.org
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-phyre
-phyre (faɪə(r)) comb. form of porphyry used in names of porphyritic rocks, as granophyre, keratophyre. Oxford English Dictionary
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Skomer Volcanic Group
Lithology and stratigraphy The Group comprises around 1000m thickness of lava flows and associated strata including felsite, albite-trachyte, keratophyre wikipedia.org
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Trachyte
Closely allied to trachyte is the rock type called keratophyre, which is the sodium-rich-plagioclase equivalent of trachyte. wikipedia.org
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soda
▪ I. soda1 (ˈsəʊdə) [a. med.L. soda (It. and Pg. soda, Sp. soda, sosa, F. soude, † soulde, soulte), of unknown origin.] 1. a. An alkaline substance obtained originally from the ashes of certain marine or other salt-impregnated plants, esp. species of Salsola, and now manufactured artificially from c... Oxford English Dictionary
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Bockberg
Rubble from keratophyre lava in a white, potash matrix, has built a volcanic breccia here, which contains veins of hematite. wikipedia.org
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Grassholm
Geologically, the island is largely formed from keratophyre, though the northwest coast and the islet of West Tump are formed from basalt. wikipedia.org
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Geology of Montenegro
Paleozoic rocks include slightly metamorphosed fine-grained clastics, with conglomerate, limestone and keratophyre lenses. wikipedia.org
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Geology of the United States Virgin Islands
The island began to form with keratophyre and pillow basalt below water, creating the two kilometer thick Water Island Formation in the Early Cretaceous wikipedia.org
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Shaida copper mine
Cross sections of drilling at the Shaida prospect show layered quartz plagioclase porphyry, quartz keratophyre and aleuropelites (siltstone or mudstone wikipedia.org
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Bilstein Castle (Lennestadt)
Thus, presumably the name was transferred from the hill, which is made of keratophyre (green volcanic rock), to the castle and adjacent settlement. wikipedia.org
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Geology of Bosnia and Herzegovina
True volcanic rocks from the Triassic that erupted onto the surface are less common, mainly basalt, andesite and dacite, transformed into spilite, keratophyre wikipedia.org
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Geology of Bulgaria
Paleozoic (538.8–251.9 million years ago) At the outset of the Paleozoic, Cambrian age politic sediments formed together with volcanic rocks such as keratophyre wikipedia.org
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