 | | Book | | subalkali basalt using TAS .......... 37 2.17 Division of the basalt–rhyolite series into high-K, medium-K...the petrography of the interesting and unique nepheline syenite massif of Ditro in Transylvania, on which...names for the various “foid” root names, e.g. nepheline syenite; and 34 are rock terms. The Bibliography...scapolite F = feldspathoids or foids including nepheline, leucite, kalsilite, analcime, sodalite, nosean...names have been given, e.g. limburgite = hyalo-nepheline basanite (6) the prefix micro- should be used |  | | Book (edition) | | been discovered around the world: in Australia, India, Pakistan, Quebec, Finland, Guyana, Venezuela, Brazil...those of the undersaturated alkalic group—the nepheline syenites and their relatives. Rare, mineralogically...Norway, Sweden, Uganda, Tanganyika, Nyasaland, and India. This, like most monographs, is a dehydrated compendium...Brazil Greenland, Europe, and the U.S.S.R. Africa India APPENDICES REFERENCES LOCALITY INDEX SUBJECT INDEX...Cu, barite, vermiculite, CaCOs;, fluorite, Ti, nepheline, and Zr. HISTORY OF CARBONATITE STUDIES Although |  | | Book (edition) | | family The epidote family The melilite family The nepheline family Leucite and analcime The silica group Other...134 136 The system nepheline-leucite-silica Field evidence regarding nepheline Enstatite and feldspathoids...shonkinite Trachyte Monzonite and diorite AnGabbro, anorthosite and diabase Basalt Pcrknite References...monzonite Diorite and anorthosite ... Andesite Gabbro and soda-gabbro Basalt and soda-basalt J. Perknite References...XVI {NON-FELDSPATHOIDAL) OCCURRENCE Olivine-gabbro and peridotite Peridotite and serpentine Kimberlite |  | | Report (volume) | | _-_-_..-_-_ 64 XII. A, Photomicrograph of olivine gabbro; B, Mica schist showing two distinct injections...96-107,1855. 5 U. S. Geog. and Geol. Surveys W. 100th Mer. Rept., vol. 3, pp. 303-501, with atlas sheets, 1875...425,1876. 'Geological report on the Grand River district: U. S. Geol. and Geog. Survey Terr. Ninth Ann...group. 0 4. Intrusive and still massive granite and gabbro bodies of large size with many smaller dikes. ...from quartz diorite and diorite to diabase and gabbro. In addition, in the vicinity of Iron Hill, near |  | | Book | | magmas within the crust are particu- leucite, and nepheline are consistent with basic and ultrabasic rocks...very beautiful, intense red color from cinnabar (mer- cury sulfide). Certainly gems exercised the greatest...they evoked. The most beautiful ones came from India and were primarily emeralds and carbuncles, the...is stabie at Leone, Tanzania, Ghana, Australia, India, Mixed sulfide deposits are characterized a higher...Crown. The 787.5 carat “Great Mogul” was found in India between 1650 and 1658 and, for a long time, was |  | | Book (edition) | | Granitic Rocks 13. PEGMATITES, LAMPROPHYRES, NEPHELINE SYENITES Granitic Rocks 308 . Introductory...Volatile Components. Pegmatites. Lamprophyres. T he Nepheline-Syenite Association 14. ENVIRONMENT, ORIGINJ...unfortunate that the use of such common names as gabbro and diorite should be complicated by the preference...velocity of cooling upon the mean grain size of nepheline separating from an artificial melt. He sho,vs...dubious assumption that the data determined for nepheline apply equally ,veil to pyroxene and plagioclase |  | | Report (volume) | | Pennsylvania Maryland and the District of Columbia 1. Peridotite and pyroxenite 2. Gabbro and diorite 5 3. Granite...Falls district, Michigan 5 3. Keweenaw Point, Michigan 4. Menominee River Sturgeon Falls gabbro Lower...region 6. Pigeon Point, Minnesota 5 7. Mesabi district, Minnesota 8. Miscellaneous rocks from Minnesota...Castle Mountain district 6. Highwood Mountains5 7. Bearpaw Mountains5 8. Elkhorn mining district 5 9. Marysville...Marysville district 10. Livingston quadrangle 5 11. Philipsburg quadrangle5 12. Radersburg 13. Miscellaneous |  | | Book (edition) | | existed as early as 700 B.C. in China and later in India (see Hawthorne, 1993 for details). The Greek philosopher...thin layer of oil (as in some milky quartz and nepheline). This luster results from light scattered by...2004. Reprinted with permission of Brooks/Cole, a division of Thomson Learning: www.thomsonrights.com Fax...bound- ary, geophysical techniques suggest another division, the recently discovered D” layer. The boundary...radius of the Earth. As minerals mass indicate a division of the Earth into a crust, mantle, and core. These |  | | Book (edition) | | Divisional Inspector of Mines and Quarries, Scottish Division (Table 15.6). The pernlission of the Controller...THE LEWJSIAN ASSEMBLAGES BASIS FOR CHRONOLOGICAL DIVISION THE ScoURIAN COMPLEX Central region of the mainland...continuous with the similar rocks of the Lake District beneath a veneer or Upper Palaeozoic sediments...1,250 ft thick at Cape Wrath (where the lowest division, the Diabaig group, is absent) but it expands...known along the Highland border, in the Girvan district, and in the Southern Uplands. The Arenig series |  | | Report (issue) | | and help of innumerable kinds. The Topographic Division has prepared excellent topographic maps covering..._____Trimble granite..... _ ___.____.._-.___--_-_-Gabbro _________________________________ Granodiorite...------------------------------Soda syenite and nepheline syenite. ___---_ Nephelihe gabbro and quartz gabbro____-_ 23 -23..._______ The rhyolite center of Twin Mountains. The gabbro of La Garita Creek....... The Roval Park intrusive...rocks are granite and granodiorite, with sporadic gabbro and syenite. In the Iron Hill area near Powderhom |  | | Book (edition) | | lattice division) 6/m2/m2Jm 6m2 3 2/m 6mm 622 3m Rhombohedral (rhombohedral lattice division) 3 2/m... The mineral {hkil} and its stereogram. nepheline, (Na,K)AlSi0 4 , is the chief mineral repre-...fluorite be carried away entirely by solution, but mer presence is indicated by the casts left later is...EARTH'S CRUST Geophysical investigations indicate a division of the earth into a crust, mantle, and core (Fig...(or its coarser grained equivalents, diabase and gabbro) CHEMICAL COMPOSITION OF THE EARTH'S CRUST 36 |  | | Report (volume) | | galena that had been recently found in the Tenmile district, Summit County. In his booklet, which today would...Indications of the principal metals produced by each district will give the knowledgeable collector some hints...hints as to the principal ore minerals in each district. I have made no attempt to list directions to the...LOCALITIES BOULDER COUNTY Locality 1.-Gold Hill district, Copper King mine. Bravoite, cobaltite, garnierite...miles northwest of Boulder. Locality 2.-Jamestown district, cerite deposits. Allanite, cerite, epidote, |  | | Book | | University Press. © 1990 by Prentice Hall A Division of Simon & Schuster Englewood Cliffs, New Jersey...Hispanoamericana, S.A., Mexico Prentice-Hall of India Private Limited, New Delhi Prentice-Hall of Japan...either of these groups of rocks separately. Such a division, however, is somewhat ar- bitrary because the...1-2 MAJOR OF THE STRUCTURAL EARTH UNITS The division of the Earth into three major structural units...similar-appearing set of diapirs developed between magmas of nepheline monzonite and alkali basalt composition. Both |  | | Book (edition) | | Contributors: Dr. D. I. C. I. I. Black Petrochemicals Division Billingham, Teesside Professor T. N. Clifford...Feldspathoid Group KAlSi 2 Q 6 Leucite NaAlS Nepheline Feldspar Group KAlSi 3 O g Orthoclase Quartz ...igneous rocks. Let us look given in Table and gabbro are in intrusions. 3. all at the The rock ...plagioclase (albite) 68 20 — — — 65 18 17 nepheline 42 36 22 leucite 55 23 22 olivine 3 40...Common Igneous Rocks (after Daly) Nepheline Rock type Diorite Gabbro (Rhyolite) (Andesite) (Basalt) |  | | Book (volume) | | 96-52375 0-07-911504-7 (set) McGraw-Hill A Division of The McGraw Hill Companies McGRAW-HILL Copyright...Fabales members An order of flowering plants, division Magnoliophyta (Angiospermae), in the subclass...order of flowering (Angiospermae), plants, division in the subclass Magnolio- Hamameli The order...fault detection and diagnosis may be used, mer includes the reactors, distillation columns, heat...principal species of this group are following: Nepheline Leucite ncrinite Sodal: Haiiyne Lazurite |  | | Journal (volume) | | Colorado. occur within small, irregular bodies of gabbro which in turn lie within a large stock of monzonite...monzonite. There is clear field evidence that both gabbro and iron ores are magmatic differentiations from...lines leading to the formation wdthin the same gabbro mass of (1) iron ores composed essentially of augite...fossiliferous to the westward in the Yakataga district and in the Chaix Hills, where it is not altered...the top. The displacement corresponding to one division = 0.01 turn) that n only small cormay rections |
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