 | | Journal (article/letter/editorial) | | of the Cambrian: a precise Middle Cambrian U–Pb zircon date from the German margin of West Gondwana E...ersität Würzburg, Am Hubland, 97074 Würzburg, Germany §Department of Earth Sciences (Palaeobiology),...east-central Germany suggests that estimates of 500 Ma for the base of the traditional Upper Cambrian and...Middle Cambrian/Series 3 and below the upper Upper Cambrian/upper Furongian Series do not exist. An earlier...traditional Upper Cambrian. Until high precision dates are determined on the base of the traditional Upper Cambrian |  | | Journal (article/letter/editorial) | | eruptive rocks, with reference to their localities in Germany and adjoining countries ; the others showing the...of the superposition of the stratified rocks in Germany and other countries, together with their mineral...various other rocks. Leucite, nephelin, topaz, zircon, garnet, tourmaline, hypersthene, smaragdite, and...constituents: Quartz, mica, garnet, tourmaline, topaz, zircon, pistazite, iron-pyrites, magnetic pyrites, titanite;...hornblende. Accessory constituents: garnet, tourmaline, zircon, iron-pyrites, and titanite. Colour: whitish, reddish |  | | Journal (article/letter/editorial) | | Ladick Trucking and Excavating weathered granite quarry is located approximately 1 mile east of State Highway...cassiterite, fluorapatite, fluorite, monazite, zircon, and a LREE-carbonate mineral, probably bastnäsite-(Ce)...and hafnium-rich zircons. The highly weathered upper-level pegmatites locally contain acicular crystals...BISMUTH, AND ASSOCIATED MINERALS FROM THE WATERLOO QUARRY, SOUTHERN WISCONSIN. T. W. Buchholz1, A. U. Falster2...Orleans, LA 70148. The Michels Materials Waterloo quarry exposes Baraboo Interval quartzites and metapelites |  | | Report (chapter) | | rocks near Mfinchberg (West Germany), Wildenfels and Frankenberg (East Germany) and in the Eulengebirge...basic metamorphic rocks (the 'Hangendserie' or upper series), around whose margins one finds paragneisses...and the basaltic rocks in the Adorf Stufe (low Upper Devonian) might be thought to fit well enough with...belong in the D 1 set of structures. The lower and upper limits" o f the Bavarian Carboniferous In the neighbourhood...contact with the basaltic volcanics (Adorf Stufe: low Upper Devonian) of the Thuringian facies-association. |  | | Book | | zeolite mineralogy was done, at that time, in Germany, Italy, France, and Great Britain. Because of differences...thick, are found. The formation consists of an upper zone (200 to 500 meters thick) containing fresh...easily altered than the microcrystalline rock in the upper parts of the same flow; therefore, the base of the...Lower Miocene columnar basalt in the Narre Warren Quarry, near Melbourne, Australia. The minerals are believed...pumpellyite, quartz, and epidote are approaching their upper temperature limit. These zones cross stratigraphic | | | Book | | zeolite mineralogy was done, at that time, in Germany, Italy, France, and Great Britain. Because of differences...thick, are found. The formation consists of an upper zone (200 to 500 meters thick) containing fresh...easily altered than the microcrystalline rock in the upper parts of the same flow; therefore, the base of the...Lower Miocene columnar basalt in the Narre Warren Quarry, near Melbourne, Australia. The minerals are believed...pumpellyite, quartz, and epidote are approaching their upper temperature limit. These zones cross stratigraphic |  | Dill, Harald G., Buzatu, Andrei, Kleyer, Christopher, Balaban, Sorin-Ionut, Pöllmann, Herbert, Füssel, Martin (2022) A Natural GMS Laboratory (Granulometry-Morphometry-Situmetry): Geomorphological-Sedimentological-Mineralogical Terrain Analysis Linked to Coarse-Grained Siliciclastic Sediments at the Basement-Foreland Boundary (SE Germany) Minerals, 12 (9) 1118 doi:10.3390/min12091118 | Journal (article/letter/editorial) | | Sediments at the Basement-Foreland Boundary (SE Germany) Harald G. Dill 1, *,† , Andrei Buzatu 2 , Christopher...University, Welfengarten 1, D-30167 Hannover, Germany Department of Geology, Faculty of Geography and...University, Welfengarten 1, D-30167 Hannover, Germany Department of Earth and Planetary Sciences, University...Halle (Saale), Germany Regierung von Oberfranken, Ludwigstraße 20, D-95444 Bayreuth, Germany Correspondence:...Sediments at the Basement-Foreland Boundary (SE Germany). Minerals 2022, 12, 1118. https://doi.org/ 10 |  | | Book | | immensely popular handbook of minerals appeared in Germany I obtained a copy fo! my personal library and was...derives its name from the saltmining district of Hallstatt in Upper Austria, where many prehistoric finds...ditetragonal prism e, also shown at D (only the upper part of the whole crystal is shown). identification...the fifteen most abundant elements present in the upper ten miles or so of the crust, which account for...characteristics 3 The 15 most abundant elements in the upper 10 miles of the Earth's crust given as weight percentages |  | | Report (issue) | | . . Bikita Quarry Lepidolite ...... . Chestnut Flat Mine Muscovite .... . Petrick Quarry Biotites .....Introductory Statement ............ . 86 Vermilion District .................. . General Statement .........Structure and Thickness .... . Ages for the Vermilion District Soudan Area ................ . Knife Lake Area...Accessory-Mineral Zonation ..... Relative Ages from Zircon Types Ages for the Giants Range Region. . . . ...Statement ....................... . 65 . . .. Mesabi District .............................. . General Statement |  | | Journal (article/letter/editorial) | | determinations of crystalline rocks of the Upper Harz Mountains, Germany By ALBRECHT BAUMANN, BORW1N GRAUERT... Dating of crystalline rocks occurring in the Upper Harz Mountains was carried out by means of U-Pb...allochthonous block of the Ecker gneiss point to an age (upper intercept) of the source area of the predominantly...Ecker gneiss by the Variscan intrusions of the Upper Harz Mountains. Emplacement of the intrusions of...cristallines de l'Oberharz par les m6thodes de I'U-Pb sur zircon et sphhne et du Rb-Sr sur roches totales et sur |  | Mvondo, H., Lentz, D., Bardoux, M., McFarlane, C.M., Archibald, D. (2017) Laser Ablation ICP-MS U-Pb and 40Ar-39Ar age constraints on Neoarchean to Paleoproterozoic magmatic and tectono-metamorphic evolution of the link between Hope Bay and Elu greenstone belts, northeast Slave craton, NWT, Canada. Gondwana Research, 51. 1-16 doi:10.1016/j.gr.2017.06.012 | Journal (article/letter/editorial) | | and gabbro–granite rocks. Laser ablation ICP-MS zircon and titanite U-Pb dating was combined with mineral...thermal pulses associated with the emplacement of diabase dikes at 2228 ± 8 Ma, CE 2128 ± 11 Ma, and 802...zone (Bleeker et al., 1999). Despite, the abundant zircon U-Pb age IP data for the Hope Bay belt, the timing...microstructural and petrographical observations, with zircon and titanite U-Pb and biotite Ar- Ar age data...bodies (Bethune et al., 1999; Thompson, 2006). Upper amphibolite- to granulite-facies assemblages with |  | | Report (volume) | | "............................................. Zircon......:.................,.................,.................................................... Diabase.............. '. ................................sandstone and underlying shales and sandstones....... Franconia sandstone.......................................granite and gray granite .................... Diabase or trap dikes............................................ 57 57 58 59 59 60 61 62 62 63 64 64 Quarry methods............... ....................... |  | | Report (issue) | | crystals), Felton's farm (Chester), and Ward's quarry; Montgomery County: Sumneytown, and Perkiomenville...Philadelphia: Fairmount Park, Frankford, and Rit- enhouse quarry. SCOLECITE CaAl 2 Si3 Oi .3H 2 O MONOCLINIC ...white radiating tufts; Delaware County: Ward's quarry, mealy white radiations. DESCRIPTIVE MINERALOGY...mines, the corundum mines at Unionville, Brinton's quarry south of West Chester, and the French Creek iron...illustration selected is the symbol of Brinton's quarry, three miles south of West Chester. REFERENCES |  | | Book | | by Gloucester Typesetting Co. Ltd. Printed in Germany Contents Translator's Foreword 4 Foreword ...known in some parts of the Continent, including Germany. Ore: Ores are deposits of minerals, which contain... prism (4 faces) pyramids chalcopyrite rutile zircon hexagonal prism (6 faces) pyramids prism (3 faces)...vesuvianite (idocrase), wollastonite, zeolite, zircon, zoisite. Other methods of classification depend...apatite, fluorite and also rutile, titanite and zircon. /f\\ Quartz is a rock-forming mineral as well |  | | Book | | thorium, which aTe strongly concentrated in the upper lithosphere, are markedly oxyphile elements occwTing... crandalJite Pyrochlore-mi cro]j te Uraninite, zircon Uraninite Uraninite, fergusonite, samarskite, xenotime...eschynite, thorite Monazi t,e, cheralite Thorianite, zircon Zirkeli te, clarkeite, al!a.ni te, chevkini te...allanite, spheue Chevkinite Metatorbernite Zircon, baddeleyite Zircon O-(OR)2-F 2 .... . . l\!Iicrolite, apatite...Jnineral are known, its minimum age may be calculated. Zircon has been used for age detern1ination by measuring |  | | Journal (article/letter/editorial) | | biotite, and feldspar, and U-Pb and Th-Pb ages for zircon. It was anticipated that we would learn from the...event is probably recorded geologically by a few diabase dikes. The resistance to post-formation thermal...muscovite K-Ar, biotite Rb-Sr, zircon U239-Pb2°8, zircon Th-Pb208, zircon U235-Pb207, muscovite Rb-Sr,...study, potassium-feldspar, biotite, muscovite, and zircon were separated from igneous and metamorphic rocks...is that of continuous diffusion of lead out of zircon (Tilton, 1960) as an explanation of the discordant |  | | Journal (article/letter/editorial) | | Please Send Them In. calcite from the West End quarry, Inyo Co., Calif., and the other is a bluishwhite...Can anyone supply information on the occurrence? District oí Columbia—On a recent visit to Washington, the...grayish cephalopod from the world's largest limestone quarry, located in Rogers City, Presque Island Co., Mich...quartzite have been collected in the Pilot Mountain district, Mineral Co., Nev. New Hampshire—A nice specimen...been found recently in the abandoned limestone quarry at McAfee, Sussex Co., N . J. New Mexico—A nice |  | | Report (issue) | | scanned. contributing accumulations, traces, quarry Areas factor dumps, weathered where were ...is a weathered fracture zone. -' -' Fletchers quarry shov.'s sporadic high values. 6. 6 1.8 3.0 2.5...New Hampshire Plutonic Series and the high grade Upper Silurian (?) and Lower Devonian Littleton Formation...oligoclase, quartz, biotite and Accessories include zircon, apatite, The granite is medium grained and weakly... Accessories listed as follows: a, apatite; z, zircon; f , fluorite; and al , allanite. Samples colums |  | | Journal (article/letter/editorial) | | of an anorthosite- rapakivi granite suite: U-Pb zircon and baddeleyite study of the Korosten complex,...1993 / Accepted November 2, 1993 Abstract. U-Pb zircon/baddeleyite ages obtained for the Korosten anorthosite-rapakivi...for K-Ar dating (biotite and amphibole), abundant zircon, and have a wide range of Rb/Sr ratios. Recent...Recent studies have shown that trace amounts of zircon and baddeleyite are rather common in basic rocks and...2410 i 20 Ma (Scherbak et al. 1989) based on U-Pb zircon data from diorite porphyries and quartz porphyries |  | | Report (volume) | | Muscovite-perthite pegmatite_______________________________ Upper sequence in the Piedmont____________________________...__________ 7. Lead-alpha age determinations on zircon and monazite from North and South Carolina____...The manganeserich shale may be restricted to the upper sedimentary sequence, but the other rocks are in...studies of the lead-alpha ages of 53 samples of zircon and monazite from the Carolinas were undertaken...probably of Cambrian and Ordovician ages and that the upper of the two is between rocks that are probably of |  | | Catalog/List | | 60 .25 .25 .40 .40 .80 .80 ALVITE (altered zircon, hafnium-bearing) Fragments; Norway .............2.00 BADDELEYITE (zirconium dioxide) Pebbles, "Zircon Favas"; Brazil .................. . .35 .60 ...assorted forms; Germany each, 15c or 10 for $1.00 Xis, in matrix of an hydrite; Germany. About lxl", .36........ .... .2 5 .60 Limestone, lithographic ; Bavaria ...... ............ .26 .60 For other limestones...which half the world's gold supply came ; Rand District, S. Africa Auriferous Magnetite Sand, California |  | | Journal (article/letter/editorial) | | feldspar were separated from six samples of Triassic diabase. Age measurements on each yielded mean age ratios...measurements on late pre-Cambrian rocks from the Sudbury district, Ontario, had suggested that this region might...Creighton aplite........................... Olivine diabase.............................. ......... ........effect of deep weathering. The Triassic Palisade diabase and Watchung flows of New Jersey appeared to be....................................... Standard Diabase Virginia...................................... |  | | Report (edition) | | Minneapolis. 1903. C. K. Leith. The Mesabi iron-bearing district of Minnesota: U.S.G.S. Mon. 43, 1903. J. M. Clements...Clements. The Vermilion iron-bearing district of Minnesota. U.S.G.S. Mon. 45, 1903. C. R. Van Hise and...near Grand Portage 112 48. Columnar jointing in diabase 113 49. Sand bar at the mouth of the Beaver River...Distribution of land and sea in North America during Upper Cambrian time 121 54. East-west geological section...155 ILLUSTRATIONS xv 67. Glacial striae on diabase, Duluth 157 68. Striated boulders from glacial |  | | Report (edition) | | mines, (courtesy of John S. White) Back cover: Upper left: galena with cubic and octahedral cleavages... “old” Lime Bluff quarry, Muncy; right fibrous : tremolite, C. K. Williams quarry, Easton: bottom: calcite...oriented coatings of goethite, “old” Lime Bluff quarry, Muncy, (courtesy of Delbert L. Oswald) ADDITIONAL...edition of Mineral Collecting Cedar Hill in quarry where Dave had done IV much of his work PREFACE...permission from the owners of the land, from the quarry or mine operators before entering to collect. (Land |  | | Report (issue) | | (Hyacinth) Andradite (Topazolite) __ (Blythite) Zircon (Cyrtolite) Thorite Thorogummite Sillimanitc Andalusitc...tremolite-actinolite, vermiculitc, weinschenkitc, zeolite, zircon. ALEXANDRIA: struvite. ALLEGHANY COUNTY: apatite...vcrmiculite, wolframite, zincite, zinnwaldite, zircon, zoisite. AMHERST COUNTY: amethyst, anatase, ancylitc...tremolite-actinolite, vcrmiculite, wad, weinschenkite zircon. APPOMATTOX COUNTY: bornite, chalcopyrite, chrysocolla... thulitc, tourmaline, uranophane, vermiculite, zircon, zoisitc. BLAND COUNTY: agate, aragonite, arsenopyrite |
|
