 | | Journal (article/letter/editorial) | | IV. The tertiary voleanics of the Lausitz area, Germany 1) By A. E. M. NAIltN, Cleveland and H. VOLLSTADT...Lausitz area in the eastern part of Germany belong to the north Bohemian province. If the outcrops are...the Variscan folds, from the Eifel in Western Germany to Poland in the east lies a wide zone in which...be regarded as part of the volcanic province of north Bohemia. This province extends roughly from the...Seiflaennersdorf phonolite 90.2 27 (L-41) Finkenberg bet Seifhennersdorf phonolite 28 (L-45) GroBer |  | | Journal (article/letter/editorial) | | melilite 18 per cent, pyroxene 20 per cent, and magnetite 2 per cent. To this melilite leucitite is given...accessory biotite, apitite, ilmenite, zircon(?), and magnetite. The hornblendite (so called) is a coarse granitoid...is accessory, as is also apatite, pyrite, and magnetite. The quartzdiorite has a thickness of not more...biotite, with accessory apatite, titanite, zircon, magnetite, and pyrite. If, then, this mass represents a...spherulites are potash-soda feldspar, tridymite, and magnetite, with some fayalite, and occasional jet black |  | | Journal (article/letter/editorial) | | Universit/it Bonn, Lehrstuhl ftir Mineralogie und Kristallographie, PoppelsdorferSchlot3, 5300 Bonn, Germany...Maar-volcano of the West-Eifel, Federal Republic of Germany. In this area olivines of different composition...selected: QFM, consisting of quartz, fayalite, and magnetite, and QFI, consisting of quartz, fayalite and iron...the Deutsche Forschungsgemeinschaft, Bonn-Bad Godesberg, West-Germany, which is gratefully acknowledged...Olivinausscheidung vom Dreiser Weiher (Eifel) und Finkenberg (Siebengebirge). N. Jb. Min. Abh. 79, 317-406 |  | | Journal (article/letter/editorial) | | cent of this into its structure. Accordingly, magnetite and spinel can probably form simultaneously from...destruction of the crystal structure, just as it can in magnetite. Accordingly, both AlzOsand FezOgcan exist in...Min. Abst.,6, 155 (1935). 19. "Picotite," Finkenberg, Germany. R. Brauns: Mineral. Nieilerr. Vul'kangeb...36,202 (1902). Magnetite,New Zealand.A. H. Chester:Min. Mag.,8, 123(1889). Magnetite,Quebec.B. J. Harrington:Min...(lB7B). 8. Magnetite, Salzburg.E. Dittler and H. Hueber Ann. Nat. Mus. Wien,4q BS Og32). 9. Magnetite,near |  | | Journal (article/letter/editorial) | | together with small proportions of plagioclase and magnetite. Such calculation for 6b is shown in column 6c...(Holmes & Harwood, 1937). Olivine basalt, Finkenberg, near Bonn, Germany (Frechen, 1948). Group C Nepheline...Olivinausscheidungen von Dreisen Weiher (Eifel) und Finkenberg (Siebengebirge). N. Jb. Min. Geol. Paldont. 79...1953. Geochemical study of volcanic rocks from North Izu, Hakone, and Sidara, and nepheline basalt from |  | | Journal (article/letter/editorial) | | Volcanoes of the Westeifel, Federal Republic of Germany Hans Jochem Becker* Mineralogisch-PetrographischesInstitut...Zfitpicherstr.49, D-5000 K61n 1, Federal Republic of Germany Abstract. The scoria cones of the Quarternary...maarvolcanoes of the Westeifel, Federal Republic of Germany, contain abundant ultramafic nodules, among which...Rurstrage 20, D-5000 K61n 41, Federal Republic of Germany and Al-augite group (Irving, 1974). Recognizing...(obsidian), OR-1 (orthoclase), L4-175 (titano-magnetite), GS-3 (chromite), 53IM-13 (chromite), Korath-kaersutite |  | | Journal (article/letter/editorial) | | the xenoliths. 4. Armidale. Basalt flow £ mile north of the New England University. A small quarry in...fissility. Another flow near Ginkin, 4 miles to the north-east, contains peridotite xenoliths which exhibit...monchiquite dykes exposed in Bombo Quarry, 1 mile north of Kiama. The dyke ranges from a few inches to 2...olivine orthopyroxene Clinopyroxene Orthopyroxene Magnetite . Spinel . . Mica Plagioclase . Amphibole . Apatite...Olivine Clinopyroxene Orthopyroxene Spinel Mica . Magnetite . Amphibole . XENOLITHS FROM VOLCANIC ROCKS |  | | Book | | entry under title: Plateau uplift. l. Geology- Germany (West)- Rbeinisches Schiefergebirge. l. Fuchs,...Springer-Verlag Berlin Heidelberg 1983 Printed in Germany The use of registered names, trademarks, etc. in... the Rhenish Massif east and west of the River Rhine). Seventeen geoscientists participated in a round-table...chosen a study area within the Federal Republic of Germany. Familiar exposures could now be reexamined with...Programme. D. Maronde De utsche Forschungsgemeinschaf t Bonn Acknowledgments This book contains the results |  | | Journal (article/letter/editorial) | | crystal lapilli in tuff of Dreiser Weiher in Eifel, Germany, have been separated and chemically analysed. One...exposed near the town of Dreis in Eifel, West Germany. Petrography The mineral assemblages of the Dreiser...= biotite (or phlogopite) ; Sp ~ spinel; Mt = magnetite; Ap = apatite; G1= glass. Parenthesis indicates...=Average basanite from includes small amounts of magnetite. Clinopyroxene Itocheifel (Itve~E~roLz, is characterized...decomposed to dense aggregates of minute octahedral magnetite and brown glass. Apatite is prismatic subhedral |  | | Journal (article/letter/editorial) | | Das V o r k o m m e n u n e n t m i s c h t e r Magnetite u n d der hohe Gehalt der Ptagioklase a n Orthoklas...Olivinausseheidungen vom Dreiser Weiher (Eifel) und Finkenberg (Siebengebirge). N. Jb. A ]3d. 79 (1948) S. 317 |  | | Journal (article/letter/editorial) | | pleochroicclinopyroxene,olivine, orthopyroxene,apatite and magnetite. Large, euhedral apatite grains are commonly found...amphibole or of amphibole which has been replaced by magnetite and clinopyroxene, but this associationis not...Harwood (1937) and Wilshire and Binns (1961). Magnetite occurs as interstitial grains and as inclusions...olivinausscheidungen von Dreiser weiher (Eifel) und Finkenberg (Siebengebirge) Neues Jahrb. Min. Geol, pal. |  | | Journal (article/letter/editorial) | | Olivine Chlorite 2-1 Pyroxene / Analcime 2"1 Magnetite Accessories 63.2 16.6 2.9 0'9 orthopyroxene...laths, and an aggregate of idiomorphic augite, magnetite, and traces of limonite. The olivine of the phenocrysts...Olivinausscheidungen yon Drciser Weiher (Eifel) und Finkenberg (Siebengebirge). Neues Jahrb. Min. Abt. A, vol |  | | Book (volume) | | for Black Forest read Odenwald. for Rhine Province read Westphalia. for in the Tirol read, Salzburg....Niederrheinische Gesellschaft fiir Natur und Heilkunde, Bonn. Sitzungsberichte 1851/54-1905. 1851/54-94 in Naturhistorischer...WestSitzungsberichte 1906-32/33. Verhandlungen: 1844-date. falens, Bonn. Naturaleza. Naturaleza, Mexico. Vol. 1-7, 1869-86;...volumes, 8vo, Bonn, 1847-54. Also an English edition pubSecond edition, 3 volumes, 8vo, Bonn, 1863/66. lished...1874. Harrisburg, 1875. Sadtler. " The Minerals of North Carolina," U. S. Geol. Sur., Bull. (1891). 74, 119 |  | | Journal (article/letter/editorial) | | 101 Analysen von Dr. G. Ν y ir ed y wie folgt: Magnetite 68,20 resp. 67,50 % , Pyrrhotin von Alsó-Jára...Cu^Cl2. Ref.: C. H i n t z e . 83. B. Stiirtz (in Bonn) : Ueber ein wenig bekanntes Tridymitvorkommen i... 9 — 1 2 , Sitzung vom 1 2 . F e b r . 1 894). Bonn Am Hang d e r K r a h h a r d t , s ü d s ü d w...T r a c h y t . Ref · f Hintze 34. K. Busz (in Bonn) : Ueber Apophyllit rom Oelberg im Siebengebirge...Oelberg zuerst erwähnt von P o h l i g (Niederrh. Ges. Bonn 10. Febr. 1890, 54) als »säulige« Krystalle. — Bekannt |  | | Book (edition) | | CHAP. MODE OF OCCURRENCE Ij dykes of the North of England and the dolerite West 13 of Scotland...in western -New Mexico, and the Bass Kock and North Berwick Law, in Haddingtonshire, may be cited. ...Igneous Geol. Surv., 1904, p. 209.) rocks of North Wales have an outcrop which indicates a laccolithic...23-43. The word sill for a flat bed Sill of the North of England. 3 is derived from the Great Whin...and Fife. The Whin Sill in the North of England is an intrusive North sheet of basic rock, which, though |  | | Journal (article/letter/editorial) | | flint and jasper), opal, pyrolusite, spinell, magnetite, calcite (including marble), amrite, malachite...T bus various members of the spinell group-as magnetite, franklinite, gahnite, pleonast, and magnesia-spinell...microsommite, sodalite, hornblende, mica, iron-glance, magnetite, and apatite, and Heim afterwards found spinell...neighbouring rock ; it contains separated crystals of magnetite and chromite.-AmZyses. 1. From Webster by Genth...and vice ves.s&. Analysis of lnmps free from magnetite gaveSiO> A120, Cr20a. FeO. CaO. MgO. HBO. 4046 |  | | Book (edition) | | MODE OF OCCURRENCE 13 dolerite dykes of the North of England and the West of Scotland . Veins.— Veinsare...Geol. Surv. , 1904, p. 209. ) intrusive rocks of North Wales have an outcrop which indicates a laccolithic...bed is derived from the Great Whin Sill of the North of England. B 18 PHYSICAL CHARACTERS fication...Lake District, North Wales, Western Isles of Scotland, and Fife. The Whin Sill in the North of England...British Isles. Much of the beautiful scenery of North Wales and of the Lake District owes its origin to |  | | Journal (article/letter/editorial) | | accessory minerals such as apatite, zircon, and magnetite with biotite and hornblende in many igneous rocks...friihmagmatische Bildung dcr Olivinausscheidungen yon Finkenberg (Siebengebirge) und Dreiser Weiher (Eifel), Geol |  | | Journal (article/letter/editorial) | | Brazil, Central India, Western Australia and Western North America. Typically they occur in the Precambrian...replaced by an aggregate of serpentine, chlorite and magnetite, as in nodule E11 from Sekameng. In this case...narrow, opaque, brownish-black, finely crystalline magnetite and chlorite or distinct hornblende and chlorite...kyanite, augile, plagioclase,sphene, apatite and magnetite. To this list can be added sil'l,imaniteand corund...lamellae (mica, chiorite and/or talc, etc') magnetite, some of which was extracted during the purification |  | | Book | | Congress Catalog Card No. 66-17809 Printed in Germany 08 011635 3 PREFACE TO THE T H I R D (GERMAN)...G. FRIEDRICH, Aachen, Germany H . FROHBERG, Toronto, Canada R. L A GANZA, North Adelaide, S. Australia...Pullman, Washington R. A. ZIMMERMANN, Heidelberg, Germany 2 Bamdohr, Theorie Minerals XVÜ ABBREVIATIONS...the sulphide content of a later titaniferous magnetite intrusion has migrated into an earlier underlying...observations t h a t in the majority of rocks magnetite and ilmenite belong to the earliest products of |  | | Journal (article/letter/editorial) | | WILLIAM S. FY~]E Between Conaquet and stream to North; 7025--2998, Le Puy sheet (south), 347 France; WILLIA~...FYFE Malpas-Cussac area; 72]--300, Le Puy sheet (north), France; WInLIAM S. FYFE 348 At lighthouse, Cape...to [001] (30, 347). Some enclose octahedra of magnetite (to 5 mm) or green spinel (2 mm) (30, 79, 122...microprobe is titaniferous magnetite. Ilmenite occurs with titaniferous magnetite in two basalts (10, i68)...one basanite (30) ; it is more abundant than magnetite in ~he basalts. Pse~dobrookite occurs with titaniferous |  | | Book | | Gottingen, Germany Translated from the German by EGON ALTHAUS University of Karlsruhe, Germany Geosci...publications in the field of geochemistry. Gottingen, Germany Karl Hans Wedepohl June 1970 v ' Contents...approaches unity the Fe is mainly precipi¬ tated as magnetite and does not combine with other consti¬ tuents...Paricutin (Mexico) C: Cascades (U.S.) H: Hesse (Germany) (Tertiary) In part after Osborn (1962) Figure...Mohorovicic Discontinuity Simplified profile from North America to Africa (After Heezen, Tharp, and Ewing |  | | Book | | THE PRE-CAMBRIAN IN NORTH AFRICA • Digitized by the Internet Archive in 2023 with funding from...Photography by ltoman T(arpoff THE PRE-CAMBRIAN IN NORTH AFRICA BY • • H. M. E. SCHURMANN PH. D. W ITH...184 185 188 195 PRE-CA'rlIBRIAN SECTIONS IN NORTH AFRICA 216 Haggar, Charnockite, Gour Oumelalen...I V. MINERAL RESOURCES OF THE PRE-CAMBRIAN IN NORTH AFRICA Haggar . . . . . . . . . . . . . Mineral...Egypt . . . . . . . . . . . . . . I. XV. THE NORTH AFRICAN PRE-CAMBRIAN . XI 243 243 243 250 254 |  | | Book (volume) | | some examples have been shown to be magnetite, chromium-rich magnetite, or chromite, and these growths are...the reaction rims of peripheral orthopyroxene. Magnetite is sometimes 8 Ortho- and Ring Silicates associated...replaced by a central aggregate of vermicular magnetite, and a corona of orthopyroxene. Pigeonite reaction... 1957) which show the marginal separation of magnetite, the separation of oxide being accompanied by...reaction one mol. of fayalite is converted to magnetite, there¬ by releasing enough silica to convert |  | | Journal (article/letter/editorial) | | bodies. Near the south end of the lake Viksvand, north of Grotli, and enclosed within the very thick sill...boulders on the outcrop of the large anorthosite sill north of Grotli. More than seventy masses of peridotite...the spinel composition changes abruptly to the magnetite-ulvospinel series. Garnet-clinopyroxene-orihopyroxene...compared to those of Webster, Dun Mountain and North Carolina. PETEOLOGY AND PETROGENESIS OF SOME GAENETIFEROUS...Cordilleran-Appalachian type of the Urals, Borneo, North America, Australia, 3. Indo-Brazilian type, found |
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Finkenberg, Bonn, Cologne, North Rhine-Westphalia, Germany