 | | Journal (article/letter/editorial) | | OF ALTERED VARISCAN GRANITES: THE WESTERN HARZ (GERMANY) AND SOUTHERN SARDINIA (ITALY) G. M O R T E A N...Miinchen, 8046 Garching (Federal Republic o f Germany) 2A. G. Geochemie, Hahn--Meitner-Institut fiir... m.b.H., 1000 Berlin 39 (Federal Republic o f Germany) 3 Geochemisches Institut der UniversitEt G6ttingen...G6ttingen, 3400 GSttingen (Federal Republic o f Germany) (Received December 3, 1984; revised and accepted...of altered Variscan granites: the western Harz (Germany) and southern Sardinia (Italy). Chem. Geol., 54: |  | | Journal (article/letter/editorial) | | St. Austell, columbite, r3I Penryn Granite Co. quarry, Halv,zsso, stokesite, 411 Wheal Cock Zawn, stokesite...I Somerset Mendips, chloroxiphite, 357 Merehead quarry, Cranmore, brucite, blixite, hydromagnesite, hydrocerussite...Saltburn, iron-boracite, 404 Hepworth Iron Co. quarry, Penistone, francolite, siderite (magnesian), 287...Hill, Radnorshire, actinolite, tourmaline, altered gabbro, 124 Coch, Glamoroan, pyrobelonite, roman6chite...SCOTLAND Arisaig, Inverness-shire, tholeiite, 273 Bad na h'Achlaise, Assynt, Sutherland, fenite, microeline |  | Alles, Jonas, Ploch, Alexander-Maria, Schirmer, Thomas, Nolte, Nicole, Liessmann, Wilfried, Lehmann, Bernd (2019) Rare-earth-element enrichment in post-Variscan polymetallic vein systems of the Harz Mountains, Germany. Mineralium Deposita, 54 (2) 307-328 doi:10.1007/s00126-018-0847-8 | Journal (article/letter/editorial) | | polymetallic vein systems of the Harz Mountains, Germany Jonas Alles 1 & Alexander-Maria Ploch 1 & Thomas...Accepted: 5 October 2018 # Springer-Verlag GmbH Germany, part of Springer Nature 2018 Abstract Carbonate...have more elevated REE content, compared with the Lower (eastern) Harz fluorite-rich systems with less REE...the Lower Harz systems has 87Sr/86Sri around 0.716 and εNdi of − 2 to − 5. Fluorite in the Lower Harz...Adolph-Roemer-Str. 2A, 38678 Clausthal-Zellerfeld, Germany 2 Geoscience Centre Göttingen, Universität Göttingen |  | | Journal (article/letter/editorial) | | Langesund, helvine, 627 Varkleivneset, Sogn, muscovite (ferrian), 5~3 Sweden (Sverige) Ldngban, helvine...wollastonite, 649; lithian tourmaline, 747 Newhurst quarry, Shepshed, Leicestershire, vesigni6ite, 533 Cornwall...* Confluence of Carneal Water and Clenoe Water Germany (Deutschland) Bramburg, G6ttingen, tacharanite...Breitenbrunn ( ~ Breitenhof), Saxony, helvine, 627 Schwarzenberg, Saxony, belvine, 627 ~gi~ (~l~jquO...glauconite, 753 SCOTLAND France Auchinstarry quarry, Kil~yth, Stirlingshire, julgoldite, 761 Blackcraig |  | | Journal (article/letter/editorial) | | 317. Hasvik, SOrOy, gabbro, 815. Sulitjehna, almandine, biotite, hornblende, muscovite, paragonite, 693...Viisterbotten, montcbrasite, 414. Germany (Deutschland) Chursdorf, Penig, Saxony, amblygonite, 414. Drachenfels...Berkshire; Ha#on attd Shabbington Wood, Buckinghamshire; Lower Froyle, Selt)orne, and West Worldham, tlampshire;...Upnor, Kent. Cornwall Bosahan quarry, Falmoath, biotite, 21o. Dean quarry, Coverack, The Lizard, analcime...Down Consols" mine, arthurite, 52o. Lee Moor, muscovite, 606. Stenna Gwyn, St. Austell, wavellite ('tavistockite') |  | | Journal (article/letter/editorial) | | authors are printed in SMALLCAPITALS,subjects in lower-case roman, and localities in italics. Actinolitc...ALABASTER (C. J.), An occurrence of brucite at Merehead quarry, Cranmore, Somerset, 4o0 ALEXANDER (P. O.) and...the Bondoc Peninsula meteorite, I21 (Syn.), MI Bad na h'Achlaise, Assynt, Sutherland, fenitc, microcline... 506 Blixite, Somerset, 4o6 BOCCHIO (R.), 3T muscovite from a staurolite-zone southalpine gneiss, Cermeledo...Mineralogical Society, report, 3 Cermeledo, Dazio, Italy, muscovite-3T, 40o Cerolite, see Kerolite CESBRON (F. P.) |  | | Book (edition) | | 134 143 THE TRACHYTE AND ANDESITE FAMILY THE GABBRO FAMILY . 152 156 170 . THE GREENSTONE FAMILY...The plutonic rocks-granite, syenite, diorite and gabbro - occur frequently in bosses . Laccolite.- A dome-shaped...many igneous areas (e.g. , in the English Lake District and in North Wales) . Dykes and Veins. - A dyke...sometimes form marked features in the scenery of a district ; for, being more capable of resisting the disintegrating...beautiful scenery of North Wales and of the Lake District owes its origin to the great development of volcanic |  | | Book (edition) | | dept. (departement), dept. (departamento), dist. (district). Less common terms are not abbreviated, e.g....Scbwarzwald Mts., in the Sailauf quarry, Spessart Mts., Bavaria. both Germany, and from the Rabejac deposit... = = = = = Acanthite, x 16 mm, Freiberg, Germany, H Abernathyite, 12 mm, Ririera/, France, H Abhurite...at the Himmelsftirst mine, Freiberg, both Saxony, Germany. In the subtropical areas acanthite may occur...byssolite. Mono- coast of North America: Kobuk River Valley, Alaska, clinic, C2/m, a,b,c = 9.89, 18.20, 5.31 |  | | Book | | Martin Meschede Laurence N. Warr The Geology of Germany A Process-Oriented Approach Regional Geology...Reviews Series editors Roland Oberhänsli, Potsdam, Germany Maarten J. de Wit, Nelson Mandela University, Port... Martin Meschede • Laurence N. Warr The Geology of Germany A Process-Oriented Approach 123 Martin Meschede...and Geology University of Greifswald Greifswald, Germany Laurence N. Warr Institute of Geography and Geology...Geology University of Greifswald Greifswald, Germany ISSN 2364-6438 ISSN 2364-6446 (electronic) Regional |  | | Journal (article/letter/editorial) | | authors are printed in SMALLCAPITALS,Subjects in lower-case roman, and Localities in italics. The minerals...i28. Amblygonite, France, Maine, New South Wales, Saxony, anal., cell-dimensions, distinction from montebrasite...albite, I56; - - , anal., d2o i, 489. Amoibite, Germany, anal., opt., X-ray, 26. Amos Stream, New Caledonia...BABU (V. R. R. M.), Microcline perthites, I35; Muscovite from Nellore, I4O; Biotite from Nellore, 39 I...Sankar mine, Tummalatalupur, Nellore, lndia, muscovite, I4O. Bialite, Congo, is wavellite, I23. Bideauxite |  | | Book | | results in a pseudo-symmetry, i.e. crystals of lower symmetry are twinned in such a way that they form...between that of the sample and that of the next lower grade. In this case we consider the hardness to...Different scratch hardness on kyanite 20 somewhere lower grade adding a half-grade to it. Although the determination...fibrous and porous aggregates often seem to have a lower hardness because of the blank spaces between individual...identification. Nobody should be discouraged by initial bad luck, it is sometimes difficult even for an expert |  | | Book | | immensely popular handbook of minerals appeared in Germany I obtained a copy fo! my personal library and was...culture, derives its name from the saltmining district of Hallstatt in Upper Austria, where many prehistoric...minerals are concerned. Opal is still thought to bring bad luck, and similar stories are told about certain...of these fourfold axes in all. The considerably lower symmetry of a monoclinic crystal is shown in Fig...crystallographic symmetry of a body may often be lower than its apparent geometric symmetry. In a pyrite |  | | Book | | names like granogabbro (granite-gabbro), monzogabbro (monzonite-gabbro), rhyodacite (rhyolite-dacite)...[Vulcan, Roman god of fire], plutonite (Pluto and the lower world), and Pele’s hair (Hawaiian fire goddess)...tribal peoples: bojite (Boii, Celtic tribe in Germany), gondite (Gonds, central India), onkilonite (Onkilones...sthene) are the essential constituents; differs from gabbro by the presence of the Definition proposed prthopyroxene...lUGS, plutonic rock satisfying the definition of gabbro, in which pl/(pl + px + ol) is 10-90 and the opx/(opx |  | | Book | | look for. Michael O’Donoghue Proustite (East Germany) 7 Rocks We can define a rock as a large mineral...Darker and even poorer in silica than diorite is gabbro, containing a calcium-rich plagioclase and pyroxene...Granite Nepheline syenite Syenite Dio rite Gabbro Peridotite 13 Dunite Serpentinite Rhyolite...the fixed index (the ordinary ray) at a higher or lower reading than the moveable (extraordinary) ray. Where...incident beam are retarded by passing through to the lower side of the film, rejoining the main beam either |  | | Book | | minerals are the raw materials of the landscape. Every valley, hill and mountain peak is made entirely of rocks...just 20km/12 miles beneath California’s Central Valley, it is substances like zinc and lead that join...so great that the iron simply cannot melt. The lower mantle is 6702,900km/420-1,800 miles down. Here...the underside of the crust, creating rocks like gabbro. Some oozes up into vertical cracks created by...drop away down these 'faults' to open up a rift valley, flanked by mountains formed from blocks that didn't |  | | Catalog/List | | mine !r2 Lustrous white twin xl groups, minor muscovite MM Lot 10-1'' lxl" lx2" I. 25 .50 I. 00...ALLEMONTITE An intergrowth of arsenic and antimony Germany Harz Mountains, Andreasberg Rich gray botryoidal...marble ..... . Connecticut Canaan, New England Lime quarry Silky white xl prisms in dolomitic marble .......material ........... Arizona Cochise Co. , Swisshelm district Rich brown to gray massive, some with minor cerussite...aluminum silicate Calilornia Placer County, Grass Valley Hornblende Norite Broad white crystal sections |  | | Journal (article/letter/editorial) | | Leibniz University, Welfengarten 1 D-30167 Hannover, Germany Abstract The Central European Variscides and their...coastal sabkha to the alluvial fan. Chromium muscovite, Cr smectite, and Cr chlorite formed at the brink...with the leading raw materials sand plus gravel, quarry and dimension stones and limestones used for the...(Fig. 1). It has to be noted that among the term quarry and dimension stones there are also some hidden...rocks which formed the Precambrian through the Lower Carboniferous, when the Visean folding put an end | | | Book | | results in a pseudo-symmetry, i.e. crystals of lower symmetry are twinned jn such a way that they form...that of the next lower grade. In this case we consider the hardness to be of the lower grade adding a half-grade...fibrous and porous aggregates often seem to have a lower hardness because of the blank spaces between individual...identification. Nobody should be discouraged by initial bad luck, it is sometimes difficult even for an expert...should preferably be more detailed, e.g. walls of a quarry, or refuse heap specimen, so that one could find |  | Stephenson, D., Bevins, R. E., Millward, D., Highton, A. J., Parsons, I., Stone, P., Wadsworth, W. J. (1999) Chapter 4: Lake District and northern England. In Caledonian Igneous Rocks of Great Britain (Geological Conservation Review Series - Geological Conservation Review No. 17. Joint Nature Conservation Committee, Peterborough. p.135-216. | Book (chapter) | | British BG5 Geological ,835 Survey Chapter 4 Lake District and northern England Introduction INTRODUCTION...INTRODUCTION D. Miliward In Ordovician times the Lake District and northern England formed part of the microcontinent...intense igneous activity occurred in the Lake District. Firstly, during the Ordovician (Llandeilo—Ashgill)...culminated in the emplacement of much of the Lake District granitic batholith (Hughes et al., 1996). Secondly...additional granitic plutons were emplaced in the Lake District and northern England subsequent to the closure |  | | Book | | periods of stability PLANET | 114 San Carlos district, Chihuahua, Mexico * 8 x 4 x 2 om are uncommon...manganese oxide on limestone, Solnhofen, Bavaria, Germany * 11.5 x 24x 0.5 cm Murcia, Spain * 14x 11x 5...Horizonte, Bahia, Brazil + 5 x 3 x 0.6 cm Platy muscovite, José Pinto Mine, Jaguaragu, Minas Gerais, Brazil...such as Porcupine and Hemlo districts; Noranda district, Quebec. USA: Mother Lode belt and others in...Localities Canada: Cobalt mining district and Thunder Bay District, Ontario. USA: several localities | | | Book | | A CHANGING PLANET 11 Vanadinite, San Carlos district, Chihuahua, Mexico * 8 x 4 x 2 cm Mineral Species...manganese oxide on limestone, Solnhofen, Bavaria, Germany * 11.5 x 24 x 0.5 om MINERALS: PRODUCTS OF A...Horizonte, Bahia, Brazil * 5 x 3 x 0.6 cm Platy muscovite, José Pinto Mine, Jaguaracu, Minas Gerais, Brazil...such as Porcupine and Hemlo districts; Noranda district, Quebec. USA: Mother Lode belt and others in...Localities Canada: Cobalt mining district and Thunder Bay District, Ontario. USA: several localities |  | | Book (edition) | | 183 The Diorite Family The Alkali-Gabbro Family - 188 The Gabbro Family 201 186 II. THE HYPABYSSAL...maintains that the granite-massifs of the Christiania district are laccoliths rather than bathyliths in Suess'...Thus Lawson 1I has described in the Rainy Lake district of Canada vast areas of rocks of plutonic babit...sometimes form marked features in the scenery of a district ; for, being more capable of resisting the disintegrating...laccoliths), or coni posite (as, for example, the gabbro -laccolith of the Cuillin Hills described by Harker |  | | Book (edition) | | Family The Diorite Family --- The Alkali-Gabbro Family The Gabbro Family II. THE HYPABYSSAL ROCKS The...it ; the granite-massifs of the Christiania district are laccoliths rather than bathyliths in Suess'...originated Thus Lawson l has described in the district of Canada vast areas of rocks habit which, according...sometimes form marked features in the scenery of a district for, being more capable of resisting the disintegrating...laccoliths), or composite (as, for example, the gabbro-laccolith of the Cuillin Hills described by Harker |  | | Journal (article/letter/editorial) | | Institut, Goldschmidtstr. 1, D-37077 Gottingen, Germany ¨ Received 25 December 1997; accepted 21 December...more. With the exception of the spring waters on gabbro ŽpH up to 7.7. all waters on the highly siliceous...distinct increase in high ANC Žaq. spring waters on gabbro. Pb, As, Sb and Tl are characterized by being found...system in the Northern Harz Mountains of Central Germany has been chosen because of the wide range of chemical...chemical composition of granite, gneiss, gabbro and quartzite. level ŽASL.. was built between 1939 and |  | | 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...Statement ....................... . 65 . . .. Mesabi District .............................. . General Statement................................. . Origin of the Gabbro Complex at Duluth. Duluth Complex in Northern Areas |
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