 | Jesus, A.P., Mateus, António, Benoit, Mathieu, Tassinari, C.C.G., Bento dos Santos, Telmo (2020) The timing of sulfide segregation in a Variscan synorogenic gabbroic layered intrusion (Beja, Portugal): Implications for Ni-Cu-PGE exploration in orogenic settings. Ore Geology Reviews, 126. 103767pp. doi:10.1016/j.oregeorev.2020.103767 | Journal (article/letter/editorial) | | layered suite, the Marginal Sulfides located at a complex domain where the LGS is intruded by late magmatic...available, favors the saturation of sulfide before olivine fractionation depletes the melt in chalcophile...mafic ( ± ultramafic) Appalachian intrusions in USA that were emplaced within continental settings subjected...(Fo69-55) and consists of medium- to fine-grained olivine (leuco-)gabbros, including thick and continuous...the ultramafic cumulates at the basis of Lower Group, wherein ton-sized oxide masses are identified (Jesus |  | | Report (issue) | | .......... 50 4.2 Unidentified Non-Platinum-Group Phases ...................................................................... 72 7. PLATINUM-GROUP TYPE MINERALOGY- GENERALTRENDS AND COMPARISONS ....................................... Platinum-Group ACKNOWLEDGEMENTS ................................and the Rustenburg Layered Suite of the Bushveld Complex (in North-West, Mpumalanga and Northern Provinces)...are platinum-group minerals mostly from the Rustenburg Layered Suite of the Bushveld Complex; the total |  | | Book | | biochemical precipitations from a fluid medium (this group of rocks is discussed in Chapter 6). As indicated... the next deeper shell of the Earth; the other group maintains that it is basalt, that is, compared to...Table 1-4). We attach more importance to the latter group for two reasons. First, we know a great deal about...electron to complete the noble gas structure. Group 2 and group “S__ Repulsion = to produce nearly minimal...of electrons more strongly to itself. Although group 1 elements have low ionization potentials and accordingly |  | | Journal (article/letter/editorial) | | metals see lithium; potassium; ium; sodium alkali olivine basalt geochemistry 27(I) 43-57 Aleutian Islands...alkalic amphibole alkali basalts see also alkali olivine basalt; ankaratrite; basanite; hawaiite; mugearite;...essexite; ijolite; leucitite; melteigite; nephelinite; olivine nephelinite alkali granites India, geochemistry...Ambittle Island geochemistry 12(3) 173-186 amphibole group see also alkalic amphi- bole; clinoamphibole; orthoamphibole...l-3)219-226 Labrador, petrology 21( 1) 13-35 Minnesota, metasomatism 2(2) 17I- 186 Nepal, petrology 24(2) |  | | Book (edition) | | commonly have several variants, such as Great Smoky Group, Great Smoky Conglomerate, Great Smoky Formation...If used on level 1, Term set options are: rock group (carbonate rocks, chemi¬ cally precipitated rocks...was adopted. Broader Term (BT, BX, BA, BZ) - A group of which the Term is a member or an area in which...Term (NT, NX, NA, NZ) - A specific mem¬ ber of a group which is represented by the Term or an area within...the Term is a member. For example: peridot BA olivine group BA nesosilicates BA orthosilicates BA silicates |  | | Book (edition) | | to the chemical formula, allegiance to a mineral group, symmetry and crystal structure as well as the strongest...oxides and similar compounds, oxidic compounds with complex anions, and a few organic species. Mineral species...chemical formula, structure (crystal system, space group, and unit cell dimensions), and at least some other...site occupancy. The Sb members of the tennantite group (2.G) will serve as a good example: tetrahedrite...annitephlogopite), lepidolite (trilithionite-polylithionite), olivine (forsterite-fayalite), and wolframite (ferberitehiibnerite) |  | | Journal (issue) | | what it can do, w hat it is used for, and t he group of minerals it belong s t o. Origins gives the location...the most fascinating examples in each min eral group. This map highlights some of the world's leading...in layman's terms below. GROUP Each mineral and gemstone belongs to a group, or family, of similar types...to chewing gum and antibiotics. 1 Halides- This group has approximately 100 minerals that combine one...and generally have to be mined . Nitrates- This group features compounds of one or more metal with nitrogen |  | | Journal (volume) | | which crystallized as the intercumulus mineral of olivine and orthopyroxene at the beginning of crys talli...C1inopyroxene is the only intercumulus mineral of olivine and orthopyroxene. The proportion of mafic rocks...rocks is att ribut ed to the fracrionation of olivine and su lphides. In places, high Cr,O, eontems arc..... ... . . . . . .. .... . 12. Composition of olivine and orthopyroxene . . . . . ... . ......... .....and the Svecokarelidic plutonic and geosynclinal complex, which developed 2 200-1 800 Ma aga (Fig. I). The |  | | Journal (article/letter/editorial) | | the presence of a uranyl(VI)phenolate aqueous complex. Its individual UV-visible spectrum shows an absorption...respectively. Quantitative analyses of the first group of samples indicate about 90% quartz and pyrite...times of no-mine production. However, the second group of samples shows no mineralogical and compositional...biogeochemical province enriched by Mo and Cu. The complex investigations were carried out to reveal envionmental...children were selected as the most sensitive risk group in the populace. From 12 children of preschool age |  | | Book (edition) | | SA. a. Geographic Coordinates peridot BA olivine group nesosilicates orthosilicates silicates BT minerals...(BT-NT) relationship is that of a group to an individual in the group, e.g., BT minerals to NT silicates...one of the specific minerals in the olivine group, the olivine group is one of several mineral groups...reciprocals are: olivine group NA peridot nesosilicates orthosilicates NA olivine group NA nesosilicates...Sandstone BT Upper Cretaceous Cretaceous SA Mesaverde Group New Mexico e. Reference to the Guide — Notes may |  | | Book | | Fetter Lalle, London EC4P .:lEE Pllhlisiled ill the USA h)' Chapman (Iml Hall 29 West 35th Street, ,\Iou...Sandstone-hosted uranium deposits of the western USA Concluding statement References ORES FORMED BY MET...permission of the Economic Geology Publishing Company, USA. x Preface Why another book about Ore Deposits...semiarid regions. Term broadly applied in the SW USA and South America. Carbonatization A type of hydrothermal...limestone terrain. Duplex structure A structural complex consisting of a roof thrust at the top and a floor |  | | Book (edition) | | (Brazil). Malcolm Back (Canada), Henry L. Barwood (USA). Dmitriy Belakovskiy (Russia). Fabio Bellatreccia...(Italy), T.S. Ercit (Canada). Alexander Falster (USA). Jeffrey de Fourestier (Canada). Robert Gault (Canada)...Henderson. Jr. (USA). D.D. Hogarth (Canada). J.L. Jam bor (Canada), Anthony R. Kampf (USA). Pave! M. Kartashov...Karnp-Moller (Denmark). Akira Kato (Japan). Lance E. Keams (USA). Elisabeth Kirchner (Austria), Uwe Kolitsch (Austria)...Republic). Per Nystcn (Sweden), David O'Hanlcy (USA). Filippo Olmi (deccased) (ltaly). Werner H. Paar |  | | Book (volume) | | an eruptive planet with a molten core and other complex inorganic processes as a living superorganism....to Earth, because the atmospheres are the least complex and most accessible of the zones of all these planets;...influence their own destiny in an interesting and complex, but comprehensible, way. Thus the sum total of...extinguished in the latest Proterozoic; if glaciation, a complex phenomenon attributed to Milankovitch cycles in...obviously become more complex as the spectrum of life on Earth has become more complex, starting with the |  | | Journal (volume) | | Earth, Editorial and Design by T he Brown Reference Group pie ISBN O 7489 7935 2 NO i 07 04 18 Printed in...are often replaced by pyrite. FACT FILE PYRITE Group: Sulphides Crystal system: Cubic Habit: Cubes,...quartz rather brittle. FACT FILE ROSE QUARTZ Group: Oxides Crystal system: Trigonal Chemical formula:...CHARACTERISTICS Rose quartz is a member of the oxide group of minerals. It is an oxide of silicon, and it gets...South Africa; and Maine and other regions of the USA. Minor deposits of rose quartz can also be found |  | | Report (volume) | | ultrabasic Geiger and scintillation counters, complex: Walton, M. S.,Jr.,2, American Association of Petroleum...P., 15. California, Barstow quadrangle: Trenton group, Ordovician: Bowen, O. E., Jr. , 5. Clark, T. H...4. also Limestone; Dolomite; Western, Claiborne group: Miss. Phosphate. Geol. Soc., 2. California: Calif... soil collapse: Swindel, G. W., Eastern, Selma group, Cretaceous: Jr., 2. Eargle, D. H., 1. Tennessee...W., 3. Montgomery County, Cretaceous, Claiborne group, Eocene, subsurprofile: Reade, H. L., Jr. . face: |  | | Book (edition) | | biaxial mineral. Anionic complex. A tightly bonded, negatively charged molecular group; in mineral formulas...Any element (such as Li, Na, or K) of the first group in the Periodic Table of the Elements; alkali elements...Any element (such as Be, Mg, or Ca) of the second group in the Periodic Table of the Elements; alkaline...650 °C and 3 to 8 kbar. Association (mineral). A group of minerals found together in a rock. Amphibolite...major feldspar; clinopyroxene ; orthopyroxene ; olivine are typically present (see also gabbro). 2 Baveno |  | | Book | | Microgranite Adaptive radiation. The evolution of a group of animals to fi large number of ecological environments;...potassium fl 16 rine. A mineral of the > pyroxene group, NaFe’’SizOs, found n soda-rich igneous rocks....origin. e. Banded chalcedonic silica. (* Silica group of minerals.) ie ® Stratigraphic nomenclature; Radioactive...Leucite Nepheline Olivine-bearing | Leucite Olivine-free Nepheline |Olivine | Olivine basanite basanite...basalt’ are used for rocks now termed olivine leucitite and olivine nephelinite respectively. It has been |  | | Book | | Department of Geology University of California, Davis, CA USA DAVID T. WRIGHT Department of Geology University...Estuarine Environment, Willapa Bay, Washington, USA: Palaeogeographic Implications and Estuarine Evolution...Successions: An Example from the Sherwood Sandstone Group (Triassic) of the East Irish Sea Basin and Surrounding...Heavy-Mineral Sands of the Atlantic and Gulf Coastal Plains, USA. . . . . . . . . . . Fredric L. Pirkle, William A...G.L. BYNUM 761 Towhee Court, Fremont, CA 94539, USA (U.S. Geological Survey, retired) J. CASCALHO Centro |  | | Book | | the individuals who made crystallographic space-group, and references to the the discoveries, and scientists...classifications were less than successful, and as a distinct group of minerals and proposed the basic often confusing...to name the new mineral in honor of a person or group, to identify the locality where the mineral was...descriptions are also in bold face. Some commonly used group names and series names are given in plain face....orthoclase, but amethystine for amethyst. Neither group. If ambiguities or options exist for the charac- |  | Gaines, Richard V., Skinner, H. Catherine W., Foord, Eugene E., Mason, Brian, Rosenzweig, Abraham, King, Vandall T. (1997) Dana's New Mineralogy (8th ed.) Wiley-Interscience. p.1872 | Book (edition) | | and O, OH, F, and H20 Groups and Other Anions or Complex and Some Beryllosilicates 1020 1061 1106 1116...followed in this edition. The many and often very complex silicate minerals are here classified for the first...Species containing more than one anion or anion group may be assigned to a separate class or may be assigned...specifies the atomic (cation to anion, or to anion group) ratio for the mineral. This and the remaining numbers...appropriate Dana number. When recognized, membership in a group is noted. Occasionally, the phrase “an inadequately |
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