 | | Journal (article/letter/editorial) | | described by Verbeek,' and also the region of the Pic de Maros in Celebes, from which rocks were collected...and nephelite syenites in the vicinity of the Pic de Maros in Celebes. Mt. Mouriah in the Diapara Residency...stream Kali Gillinan, near the village Masin, on the south slope of the mountain above Bareng; the other locality...Near Ragou. E. W. Morley. Vicoite, -shoshonose, Orthoclase-bearing leucite tephrite, borolanose, II. '6...magnetite, with prismoid plagioclase and anhedral orthoclase, some of which form narrow shells around the |  | | Book | | . . . . . . . . . . . . . . Birunga Volcanic Province . . . . . . . . . . . . . . . . . Leucite-Bearing...Kimberley, Australia Leucite-Bearing Rocks of New South Wales, Australia. . . . . . . . . . . . . . . ..... . . . . . . Potassic Rocks of N avaj o-Hopi Province (USA) . . .. Leucite-Bearing Rocks of Leucite.... . . . 199 17.3.2 Genesis of Magmas of Roman Province ......... 206 17.3.3 Genesis of Shoshoni te ....Albite Anorthite Plagioclase Quartz Tridymite Orthoclase Potash feldspar Diopside Clinopyroxene Enstatite |  | | Book | | classification schemes such as the R1–R2 scheme of De La Roche, it is regrettable that this potentially... cristobalite A = alkali feldspar, including orthoclase, microcline, perthite, anorthoclase, sanidine...corresponds with archetypal rocks from Kimberley, South Africa, which were formerly termed “basaltic kimberlites”...and unique occurrence in the Orange Free State of South Africa. Wagner (1928) previously suggested that...chemically distinct calciocarbonatites C1 and C2. South African Journal of Geology. Vol.102(2), p.109–121 |  | | Book | | charnockite (Job Charnock), dolo- mite (Deodat G. S. T. G. de Dolomieu), muckite (Fritz Muck), obsidian (Obsidius...(Giuseppe Marzari-Pencati), saussurite (Horace B. de Saussure), and ulrichite (George H. F. Ulrich). A...feldspar, in a groundmass of labradorite with orthoclase rims, olivine, augite, and some leucite. [ Absaroka...(scyelite), hornblende-biotite-pyroxene rock, orthoclase sodie-plagioclase rock (perthosite). [Ach-uaine...quartz monzonite; term originally used for an orthoclase-bearing tonalite. [Monte Adamello, Italy] (Cathrein |  | | Book | | and Somma-Vesuvius of Italy and the Bufumbira province of equatorial Africa, K-rich silica undersaturated.... . . . . . . 4.1.5 Leucite-Bearing Rocks of Indonesia . . . . . . . . . . . 4.2 Ultrapotassic Rocks... . . . . . . . . . . . . . . . . . . 4.2.2 New South Wales, Australia . . . . . . . . . . . . . . . ...Lamproites from Pniel, Post Masburg, Swartruggens, South Africa . . . . . . . . . . . . . . . . . 4.3.5 K-Rich.... . . . . . . . Potassic Rocks of Navajo-Hopi Province . . . . . . Dulce Dike . . . . . . . . . . . |  | | Book | | volcanoes, and volcanic Roman activity authors and de- earth- quakes. Strabo, the Greek geographer and...he together with basaltic rocks of the south coast of New South petrology. was generated ‘more or less...a belt of coarsely crystalline ultra-basic R. A. de Reaumur (1726), L. Spallanzani (1794) and George...minimum in the uppermost mantle (70-100 km). Such a de- crease in thermal conductivity may result in the...planet, the gravitational force acting on it tends to de- crease, and at the centre the force becomes zero |  | | Report (issue) | | accurate and con1plete in its is assigned to orthoclase and all the soda to albite. · determination of...prop~rly ~nd systematically, according to . methods de~cnbedin any work on assaying. lt should be noted...petrographers of the correctThe molecular weights of orthoclase and albite are ness,of his· position. Since,...One percent of K20 corresponds to 6 per cent of-orthoclase, and the same amount of Na20 to 8 per cent of...Apparently high soda and low potash in a so-called orthoclase rock 1nay arise from an imperfect description |
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