 | | Journal (article/letter/editorial) | | zones, West Santa Comba-Fervenza Area (Galicia, NW Spain): A mineralogical study R. Castroviejo E.T.S...Polit6cnica de Madrid), c/ Rios Rosas, 21 - 28003-Madrid (Spain) Received: May 1989/Accepted: September 6, 1990...terranes, some 40 km NW of Santiago de Compostela (NW Spain). The orebodies are bound to late-stage Hercynian...Ore mineralogy, alteration, and ore textures define a frame whose main features are common to all prospects...minerals are arsenopyrite and pyrite - accompanied by quartz, adularia, sericite, + (tourmaline, chlorite, carbonates |  | | Journal (article/letter/editorial) | | Late Prehistoric Rock Paintings—Penedo Gordo (NW Spain) Jose Santiago Pozo-Antonio 1, * , Beatriz Comendador...Late Prehistoric Rock Paintings—Penedo Gordo (NW Spain). Minerals 2021, 11, 551. https://doi.org/10.3390/...Minas e Enerxía, University of de Vigo, 36310 Vigo, Spain Grupo GEAAT, Dpto. de Historia, Arte e Xeografía...das Lagoas, University of Vigo, 32004 Ourense, Spain; beacomendador@uvigo.es Centre for Studies in Archaeology...Enxeñaría Industrial, University of Vigo, 36310 Vigo, Spain; pbarreiro@uvigo.es Correspondence: ipozo@uvigo |  | Rubinos, David, Iglesias, Luz, Devesa-Rey, Rosa, Díaz-Fierros, Francisco, Barral, María Teresa (2010) Arsenic release from river sediments in a gold-mining area (Anllons River basin, Spain): effect of time, pH and phosphorous concentration. European Journal of Mineralogy, 22 (5) 665-678 doi:10.1127/0935-1221/2010/0022-2061 | Journal (article/letter/editorial) | | release from river sediments in a gold-mining area (Anllóns River basin, Spain): effect of time, pH and phosphorous...Farmacia, Campus Sur, 15782 Santiago de Compostela, Spain *Corresponding author, e-mail: david.rubinos@usc...from As-rich riverbed sediments (Anllóns River, Spain) was studied. In this area As is associated with... Also, As species in solution were determined as a function of pH and time. The release of As was greatly...accompanied by organic matter dissolution. This suggests a determining role of organic matter in the As release |  | Figueiredo, Elin, Rodrigues, Alexandra, Fonte, João, Meunier, Emmanuelle, Dias, Filipa, Lima, Alexandre, Gonçalves, José Alberto, Gonçalves-Seco, Luís, Gonçalves, Filipe, Pereira, Manuel F. C., Silva, Rui J. C., Veiga, João P. (2022) Tin and Bronze Production at the Outeiro de Baltar Hillfort (NW Iberia) Minerals, 12 (6) 758 doi:10.3390/min12060758 | Journal (article/letter/editorial) | | Figueiredo, E.; Rodrigues, A.; Fonte, J.; Meunier, E.; Dias, F.; Lima, A.; Gonçalves, J.A.; Gonçalves-Seco...Hispaniques et Ibériques (EHEHI), 28040 Madrid, Spain; emmanuelle.meunier@casadevelazquez.org Department...mining are very rare. In the present work, we present a detailed study of the Outeiro de Baltar hillfort,...the Late Iron Age/Early Roman period, located in a place where 20th century tin mining work took place...diverse typologies found at the site showed that a variety of metals and alloys were in circulation and |  | | Journal (article/letter/editorial) | | the Channel Islands, and the C o t e n t i n - - a n area comprising the western opening of the English...were to be traced round its eastern extremity, but m a n y circumstances tending to render the evidence less...and H a n t , . - - I t will be seen, by reference to any geological map of E n g l a n d , t h a t the...mainly produced within a comparatively recent period. Weymouth Bay is partly due to a line of depression...are quite distinct fl:om those, with pebbles of quartz and granite, which cap the Haldon, Blackdown, and |  | | Journal (article/letter/editorial) | | Esq., B.Sc. (Edin.); C. A. Hindley, Esq.; Hugh Miller, Esq., F.G.S.; and Miss A. C. M. Sutherland. The...Alps. XXV IlL-Corsica, Elba, and Sardinia. XXIX.-Spain and France. XXX.-Couclusions. I. Pl'elirninal'y...Pl'elirninal'y.-It occurred to me, that as it is probable a considerable number of the members of this Association...been relied upon in the attempts made to institute a comparison between the oldest rocks in America and...rendered to this question, the attempt has become a much easier one than it formerly was. Correlations |  | | Journal (article/letter/editorial) | | 00~6-m37/asis3.00 + 80 Gcdrmreo a Cosmochrmrco Ada Vol. 54,pp. 353469 0 PeqanumPCS Ltd. 1986.tinted... Al, and cxocss ““Pb and dissolved total As, AS” A.@, M@, Fe+‘, PO;‘, NEI: , and Hfi prolil~ in 12 cores...As and Mn inanition maxima in su&ial sediments are a msult of intense As save@ng in the overlying waters...suggesting solid phas As release to porewaterin responseto a redox gradient acmss this mixing boundary,Dissolved...of solid phase As, Al, Mn, and excess ““Pb provide a basis for interpreting As distributions in terms of |  | | Journal (article/letter/editorial) | | published by the Canadian Geological Survey. He enclosed a photocopy of "New Occurrences of Minerals in Parts...Sabina which appeared in Report of Activities, Part A, Geol. Surv. Can. Paper 77-1A (1977). Some of the...just north of highway # 500 in the Bancroft area. A second occurrence is found in the road cuts along...millimeters. Asso ciated minerals include brucite, a serpentine, yel low to orange clinohumite, colorless...borite crystals in limestone with norbergite and a peach-colored tourmaline. Road cuts in Minden and |  | | Journal (article/letter/editorial) | | are at liberty to supposeff t to be the roots of a + c f 2 = 0 , which reduces it to the form Philosophical...to reduce them to fundamental forms. I have not h a d occasion however to pursue the method beyond what...often of the porphyritic variety, a ternary compound of mica, quartz, and felspar only. 2. Gray granite...such accession. 3. Gray granite, more syenitic, of a greenish tint, not so distinctly crystalline granular...calcareous~ and the mica in a greater degree absent. ¢. Gray granite, with a less shade of green, no hornblende |  | | Catalog/List | | for packing, carriage or postage. We try to include a wide selection in terms of species, sites and price...Show venues in order to ‘give you sight’ of as wide a variety as we can of our very large stock (currently...condition, of unsatisfactory material. Where available a close substitute will be offered unless otherwise...you want, remember, our lists can only represent a tiny fraction of current stock. IVER HEATH MINERAL...brecchiated Shilale/Siderite matrix. •B'. Specimen 'A*. 5x2-Jx1-J", £5-50. 'Z ‘_ 2£x2x1", £4.25. ALMANDINE |  | | Book (edition) | | EDITION COLOR NCYCLOPED1A OF JOEL E AREM, PHD, FG. A. COLOR iNCYCLOPEDIA SECOND JOEL Since E. EDITION...you to concise and accurate data on particular a ability, rarity, book's the graphs gems gemstone's...illustrate depicted no in other gemstone book. A major feature of the new coverage this second...special interest, and edition, is new to this a detailed analysis of color and measurement as applied...presents a com- color prehensive listing of machine-generated (Continued •> <,\kflap) A VAN NOSTRAND |  | | Report (issue) | | Anhyd r i te No l4 Gold No 15 Mica N o l6 Po t a sh No 17 Sandstone 11 Preface The Mineral Resources...worked in this country. The Com mittee produced a series of dossiers, each of which was circulated in...of the minerals industry. They bring together in a con venient form, in respect of each of the minerals...Institute of Geological Sciences, in particular Mr R A Healing and Mr M Harrison of the Mineral Statistics...References 36 Illustrations 7 Fjg l Cross-section of a typical highway Fig 2 United Kingdom production |  | | Journal (article/letter/editorial) | | Booth Street,Ottawa, Ontario KIA OGl, Canada EnNsr A. J. Bunxe Instituut voor Aardwetenschappen,Vrije Universiteite...bireflectance.Anisotropy weak to Stanley(1988)Blatterite,a new Sb-bearingMn2+-Mn3+ with rotation tints in shadesof...emissionspectrometryof 2.53 mg of hand-picked Z axescorrespondto a, c, and Daxes,with the optic plane crystal fragments...yielded a MnOfrom positive (400-450 nm) to negative (470-700 nm). MnrO, distribution, confirmed by a wet-chemical...cussedtGladstone-Dale calculations indicate that a forto a compatibility index ll - (Kp/KJl of, respectively |  | | Journal (issue) | | halves may be had at twice the above prices. SMOKY QUARTZ CRYSTAL GEODES, Chihuahua, Mexico. Sawed halves...return of same. These may contain amethyst, smoky quartz, goethite, calcite or other minerals. 3” diameter...for blue white quartz, diameter $3.50 ea. AGATE SLABS. From Mexico or Brazil. These cut a full Va" thick...250 ea. Va" @ 350 ea. 1" @ 500 ea. We'll send along a selection of the various colors if you wish. BROOKITE...corroded smoky quartz xls and masses, lxl 750, 1x2" $1.25, 2x2"$2.00, 2x3" $2.75, 3x4" $5.50. A few larger |  | | Journal (article/letter/editorial) | | CLASSIFIED ADVERTISEMENTS WORLD'S BEST W A N T A D . M E D I U M FOR MINERALS Rate 12< per word; minimum...month. FOSSILS TRY A N AD only 12c a word ILLUSTRATED FOSSIL fr M I N E R A L C A T A LOG 3 0 * — Largest...9 9 6 , Ardmore, Okla. 7 3 4 0 1 . C H R I S T M A S PRESENTS — Take the b i g EUROPEAN-FOSSIL-SEA-URCHIN...RCHIN! Send $ 2 . 5 0 . Satisfaction guaranteed. A s k your dealer. Wholesalers, place orders for 1967...w i t h teeth. A L L for only $ 5 . 0 0 , postpaid. Nicholas & Sons, 1 2 1 2 N . W a s h i n g t o n |  | | Journal (issue) | | little " new" material and its • pro!ile s hi fted a bit further away from hard-core mineral collecting...occurs in several habits. At its best, the colo r is a radia nt raspberry red, but it can also be slig htly...individual ly on matrix. Several dealers had the mate rial . but by far the best specimens were from the collection...Pezzotta and were shown as pan of the special exhibit. A few faceted sto nes were offered for sale and most...material as a gem, even if sto nes rarely seem clean. Several dealers hacl the new microcline (var. a mazonite) |  | | Journal (article/letter/editorial) | | ellipse with a northern flattened side some 50 miles in length. It has been compared to a single mountain...culminating in the celebrated Brocken, 8,746 ft. in height. A line drawn through the Brocken from north to south...drained by the tributaries of the Weser, rises to a height of about 2,000 ft., and is the seat of the...corresponds to Barrande's Etages F, G, H, which occupy a position intermediate between the Silurian and Devonian...addition to Devonian sandstones, shales and limestones, a large area of graywacke and shale, which extends over |  | | Journal (article/letter/editorial) | | CLASSIFIED ADVERTISEMENTS WORLD'S BEST W A N T A D . M E D I U M FOR MINERALS Rate 12^ per word; minimum...2 0 t h of each month. FOSSILS DO Y O U W A N T SUCCESS A T E X H I B I TIONS? Exhibit the big Europ...Siegelallee 5, Germany. ILLUSTRATED FOSSIL & M I N E R A L C A T A LOG 30** — Largest stock of fine fossils in North...echinoids, etc. M a licks' Fossils, 5 5 1 4 Plymouth Road, Baltimore, Maryland. 2 1 2 1 4 C H A Z Y FOSSIL LIMESTONE...0 , 0 0 0 . Catalog 2 5 g . Ray's Fossils (Jim R a y ) , Box 1364, Ocala, Florida. 3 2 6 7 0 . ( 1 0 |  | | Book | | A HANDBOOK FOR THE AGATE COLLECTOR AND CUTTER Including a Description of Agate Filled Thunder Eggs H...DAKS (nerfcfOte Including a Description of Agate Filled Thunder Eggs A HANDBOOK FOR THE AGATE COLLECTOR...15, Oregon. MIDWEST GEM TRAILS— By June Zeitner. A field guide book for the gem hunter, the mineral and...described. Illustrated with maps and field photos. A recent new book. Price $2.00. ART OF GEM CUTTING—By...advanced technician. Price $2.00. POPULAR PROSPECTING—A new book, written especially for the part-time pros |  | | Journal (article/letter/editorial) | | Variscan orogeny reconsidered U. Kroner a,⁎, R.L. Romer b a b TU Bergakademie Freiberg, Department of...GeoForschungsZentrum GFZ, Telegrafenberg, D-14473 Potsdam, Germany a r t i c l e i n f o Article history: Received 25...Spur Plate tectonics Continental subduction a b s t r a c t The Variscides of Europe and N-Africa are...Laurussia. Here we explain the Variscan orogen in a two plate scenario, reasoning that the complexity...plates is reorganized, leading to a flip of the subduction polarity and a subduction zone jump outboard of |  | | Journal (article/letter/editorial) | | No. 248. I i 1 OCTOBER 2, 1880. the midst of a negative, cloudy, sky; others in vrhlCh the some of...one case in the sun is negative in a positive telluric halu in a negative c loudy Cambrian age. wh ich...Murchison in the Northwest Highlands, have been, I where a large boss of granite rises through the sandstone...sufficient grounds for dissentOn the Continent of Europe, a broad area of Devonian that they throw great light...and Murchison described the phenomena. I hope at a fut ure meeting to lay before the society more I It |  | | Journal (article/letter/editorial) | | Levittown, Pa. 19054 Preparation of a Micromount The process of preparing a micromount can be broken down as...containing potential micromounts. 2) 2) Isolating a number of potential specimens 3) Selecting one or...specimen into a box or capsule 9 ) Numbering and labeling the box or capsule 10) Recording data in a card file...been carried out—that is, some suitable mate rial from a dealer. In fact, to get started in micromounting...micromount material from a dealer who specializes in such specimens. This is a good way to become familiar |  | | Journal (article/letter/editorial) | | GEOLOGY OF THE SUMMITVILLE MINE, COLORADO JOH• E. GI•A¾, U.S.Geological Survey,FederalCenter,Denver,Colorado80225...SummitvilleConsolidatedMining Company,Inc. (SCMCI), a subsidiary of GalacticResources of Canada,operatedan...SanLuisValley (ErdmanandSmith,1994). Environmental Geology A fundamental environmental concern at Summit- ville...interaction between these rocks and surface and enlocatedin a streamdrainage(CropsyCreek) back groundwatersisalsoimportantfor...opedduringearlyundergroundminingof high-grade (1994). A geologicpit mapispresentedin Grayet al. gold zones |  | | Journal (issue) | | FIGURES IN TBE TEXT KØBENHAV C. A. REITZELS FORLAG BIANCO LUNOS BOGTRYKKERI A/S 1955 Pris: Kr. 7.00 - ...L<ØBENHAV C.A.REITZELS FORLAG BIANCO LUNOS BOG T RYKKERI A/ S 1955 T PART I GE ER L GEOLOGY BY J. BON.... . uliine of tl1e lraligraphy in th ~le t ig ar a ................. . pp r arbonif rou ...............h uJa f th pa nd atjon in thi ma . 11 pcnh a and t en, . ov mber 195',. r. • .l ourte hr...nhagen. Th de cription is a bri f ummary of th stratigraphy within the area a it has been established by |  | | Journal (article/letter/editorial) | | CLASSIFIED ADVERTISEMENTS WORLD'S BEST W A N T A D . M E D I U M FOR MINERALS Rate 12¿ per word; minimum...I N E R A L C A T A LOG 3 0 < — Largest stock of f i n e fossils in N o r t h A m e r i c a . Equipment...Box 9 9 6 , A r d m o r e , Okla. 7 3 4 0 1 . FOR SALE — Penn. fossils and zeolites. Slabs a n d tumbled...Malicks' Fossils, 5 5 1 4 Plymouth Road, Baltimore, M a r y land. 2 1 2 1 4 ACROSALENIA — Jurassic echinoid...ammonites (Jurassic) 50tf - $ 3 . 0 0 . Identified. H a r t m a n , Box 2 5 7 , Kokomo, Indiana. Other fine fossils |
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