 | | 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 | | 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 | | granites have magnetite, zircon, apatite, ilmenite, titanite, and many others. Major Rock Classes Nearly all...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 |  | | 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...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... Wire silver, Silver Islet Mine, Thunder Bay District, Ontario, Canada + 11.5 x 14x 11 om Silver has | | | 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 | | | 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...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... Wire silver, Silver Islet Mine, Thunder Bay District, Ontario, Canada * 11.5 x 14x 11 om Silver has |  | | 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) | | plutonic rocks of the gabbro family (anorthosites, gabbro proper, olivine gabbro and norites) which penetrate...Thus while the intrusions of these rocks of the gabbro family had perhaps their greatest develop ment...of primary lim estone, f Report on the F irst District, 1843, p. 486. t Buffalo Courier, August 25,1876;...the Third District, p. 255. 1 Report on Second District, p. 416. § Report on F irst District, p. 486....chiefly an upland valley, cut off from lake Champlain by a high ridge of gneiss and gabbro running north-and-south |  | | | | around a central silicon atom. kyanite, topaz, titanite, zircon, amphibole, pyroxene, chlorite, talc,...(silver-white), p. 22 silver (silver-white), p. 22 titanite (brown to black), p. 176 | platinum (silver-white)...black), p. 110 rhodonite (red, brown-red), p. 202 titanite (brown black), p. 176 siderite (brown), p. 150...150 topaz (blue, whiteyellow), p. 172 titanite (brown black), p. 176 tourmaline (black, brown, variable)...rhyolite (p. 256) Medium diorite (p. 250) Dark gabbro (p. 252) andesite (p. 260) basalt (p. 262) obsidian |  | | 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 |  | 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 | | garnet, epidote, vesuvianite, kyanite, topaz, titanite, zircon, amphibole, pyroxene, rhodonite, beryl...(silver-white), p. 22 platinum (silver-white), p. 26 titanite (brown to black), p. 176 Red-Brown copper (reddish...(red, brown-red), p. 202 siderite (brown), p. 150 titanite (brown black), p. 176 zeolite(colourless, white...variable), p. 218 spinel (red, brown, black), p. 110 titanite (brown black), p. 176 topaz (blue, whiteye!low)...Medium diorite (p. 250) andesite (p. 260} Dark gabbro (p. 252) basalt (p. 262) obsidian (p. 266) Sedimentary | | | Book | | results in a pseudo-symmetry, i.e. crystals of lower symmetry are twinned in such a way that they form...this case we consider the hardness to be of the 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...should preferably be more detailed, e.g. walls of a quarry, or refuse heap specimen, so that one could find |  | | Book | | NaFe(SiOs)2. Monoclinic. Prismatic crystals. Cleaverage—district (110.) Brittle. Luster-vitreus. Color-brown or...xtals are i to % inches long. In a dike cutting gabbro. The dike is 4 to 6 inches thick and is of a reddish...approximately 18 to 24 inches thick that cuts the gabbro which at this point is about 4% mile wide and...anorthosite. Sec. 5, T.3N., R.13W. Near the Hazel quarry in pegmatite dikes. Long rods of altered amphibole...locations in western Oklahoma. It usually occurs as the lower beds below the gypsum. (See gypsum locations.) |  | | Journal (article/letter/editorial) | | Ladysmith (Rosemeyer 1999, the Vulcan Materials quarry in Racine (Scovil 1994), the pegmatites of Florence...marcasite. A major mining district, the Upper Mississippi Valley zinc-lead district, was in these rocks in...and copper minerals were found. Mining in this district ceased in the late 1970s. A branch of the Middle...may have omitted. Adams County Hamilton Mound. A quarry is located in the NE 1/4 sec. 36 T*20N*R.6E.: potassium...converted to a hornfels at the contact with the Mellen gabbro complex: apatite, fayalite, ferroaugite, grunen'te |  | | Journal (article/letter/editorial) | | occurs also, albeit in smaller amounts, within lower continental crust, oceanic crust, upper mantle and...syenogranite – alkali feldspar granite Anorthosite – gabbro – diorite Monzogabbro – monzodiorite – monzonite...– chevkinite Silicates – aenigmatite – topaz ± titanite ± tourmaline ± garnet Phosphates (low to very...Province Comendite, San Pietro Island, Italy Midland Valley, Scotland Oslo Rift, Norway Pantellerite, Pantelleria...gneisses, Galicia, Spain Rheinisches Schiefergebirge, Germany British Tertiary Igneous Province 440–425 Ma 280–235 |  | | 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...error. good index of the character of the analysis, bad summation being be considered good, other things |  | | Book | | zeolite mineralogy was done, at that time, in Germany, Italy, France, and Great Britain. Because of differences...composition), 600 to 900 meters thick, in the Oligocene to Lower Miocene John Day Formation in central Oregon (Hay...natrolite, gonnardite, gismondine, and faujasite; and a lower zone (up to 8 meters thick) that is analcime-dominant...covering of the flow by additional flows before the lower flow has cooled, differences in chemical environment...vesicular base of Oligocene to Lower Miocene columnar basalt in the Narre Warren Quarry, near Melbourne, Australia | | | Book | | zeolite mineralogy was done, at that time, in Germany, Italy, France, and Great Britain. Because of differences...composition), 600 to 900 meters thick, in the Oligocene to Lower Miocene John Day Formation in central Oregon (Hay...natrolite, gonnardite, gismondine, and faujasite; and a lower zone (up to 8 meters thick) that is analcime-dominant...covering of the flow by additional flows before the lower flow has cooled, differences in chemical environment...vesicular base of Oligocene to Lower Miocene columnar basalt in the Narre Warren Quarry, near Melbourne, Australia |  | | Book (edition) | | scale to soapstone at the other. There is a still lower limit in liquids and gases; but of the hardness...the planes of the trisoctahedron in Fig. 21. The lower one of the three on the upper front solid angle...by a constant ratio, and the expression for the lower right one of the six planes will be 3c f & la. By...planes will remain essentially the same. In Fig. 10, bad the plane lettered | been made the plane 1, then...being here directly over those suppressed in the lower pyramid. APATITE. If the student will shade over |  | | Report (volume) | | ............................ Maryland and the District of Columbia.....................................pyroxenite.. ......... ................'............ 2. Gabbro and diorite...........................'...................................... 2. Crystal Falls district, Michigan.................................. .......... Sturgeon Falls gabbro............................................ Lower Quinnesec Falls. ....................................... 51 7. Mesabi district, Minnesota................................... |  | | Journal (article/letter/editorial) | | .............................. 222 Contacts of Gabbro and Limestone....................................intruded, plutonic rocks of the gabbro family (anorthosites, gabbro proper, olivine gabbros, and norites)...Trenton, and Utica of the Lower Silurian, all in fine exposures in the Champlain valley.* A great series of... In Moriah there are various outliers of basic gabbro, but most interesting of all is the exposure along...limestone. They afford both normal and olivine gabbro and most interesting passages into gneissoid facies |  | | Book | | minerals, accessory minerals (e.g. zircon, apatite, titanite), epidote, allanite, garnet, melilite, monticellite...syenite foid-bearing syenite quartz diorite quartz gabbro quartz anorthosite (monzogranite) 65 90 20 ...monzogabbro P diorite gabbro anorthosite foid-bearing diorite foid-bearing gabbro foid-bearing anorthosite...monzodiorite foid-bearing monzogabbro foid diorite foid gabbro foidolite F Fig. 2.4. QAPF modal classification...comprehensive names for rocks between syenite and diorite/gabbro, i.e. for monzonites (field 8) and monzodiorite/monzogabbro |  | | 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 |  | | Journal (article/letter/editorial) | | activity was probably triggered by intrusion of gabbro-dolerite sill and resulted in the second phase...[13], and are intruded by the Salmi anorthosite–gabbro– gapakivi-granite complex (1.55–1.53 Ga) [14,15]...byintruded gabbro-dolerites of the Valaam ± 8 Ma The PrF, SalF,rocks and PashF rocks are by gabbro-dolerites...village, where, in themassive Tulemajoki Riv-flows er-valley outcrop, bedrock attributed to are the upper PrF...using an X Series 2 (Thermo Scientific, Bremen, Germany) mass spectrometer. The powdered samples were digested |
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Gabbro Quarry, Radau valley, Bad Harzburg, Goslar District, Lower Saxony, Germany