 | | Journal (issue) | | localities: Minerals of the Kaokoveld District, Kunene Region, Namibia ............................................ 485 by R. J. Bowell, 0. Ermolina, W van der Plas, J. van Us & M. Steiner The best zincite crystals...shattuckite, 7.1 cm, from the Kaokoveld District, Kunene Region, Namibia. Irv Brown specimen; Jeff Scovil photo...the best vesuvianite specimens from the Jeffrey mine in Quebec. In this issue we present a review of...Herodsfoot Mine Work Readers who enjoyed Roy Starkey's superb article on the famous Herodsfoot mine in Cornwall |  | | Journal (issue) | | (II) Eine Achat-Sammelreise nach Argentinien • Der Granitsteinbruch Ernst bei Rinchnach, Bayer. Wald...Leben braucht. Johannes Keilmann hat ihn während der Börse in Disentis besuchen können, und er hat uns...hervorragend, selbst die Strapazen während der Börsenzeit in Disentis, in der er sehr viele Besucher zu Hause empfangen...und die Psyche wieder gefestigt. Er ist einfach der größte 'Glückspilz' unter den Strahlern, den wir...1. Mindat-Konferenz in Lw6wek Slaski, Polen 18 Der Granitsteinbruch Ernst in Grub bei Rinchnach, Bayerischer |  | | Journal (article/letter/editorial) | | Abenab, and 558 pages later, ending with the Van der Plas mine. There is more, however, in the form of a...10 percent of the photographs used in the first Namibia book are repeated here, so most are new. Many of...map showing its location in Namibia. Furthermore, unlike the first Namibia book that had multiple reference...reference lists after each region, there is one composite reference list at the end of the book making it...Aris, Berg Aukas, Brandberg, Cape Cross, Christoph mine, Erongo, Gamsberg, Giftkuppe, Goanikontes, Goboboseb |  | | Journal (article/letter/editorial) | | but occur in two separate areas (Bearth 1959; van der Plas 1959). In the Western Alps, eclogites and blueschists...area, occurrences of blueschists (Gansser 1937; van der Plas 1959; Oberhfinsli 1978), eclogites (Hezner 1903;...but has been inferred to be Early Alpine by van der Plas (1959), based on the interpretation of some...nappe emplacement. Data by Dal Vesco (1953), van der Plas (1959), Bruggmann (1965), Weber (1966), Fumasoli...eclogites, and albite-omphacitegarnet amphibolites (van der Plas 1959). Kyanite ( + o m phacite + garnet) is |  | | Journal (issue) | | Habachtal • Vorsicht Fälschung : Jeremejewit aus Namibia • Rauchquarze von Rochsburg in Sachsen • Highlights...aus Polen • Schweiz: Galmihorn • Neufunde aus Namibia • Alpe Rosso & Pizzo Marcio/Valle Vigezzo • Wetterberg... und hier verliert der Sammler aus Unsicherheit die Freude an Stufen aus Namibia. Eigentlich reicht uns...allen schon der ganze Reigen rumänischer Fälschungskunst - dass nun Namibia auch mit von der Partie ist...ist, haben sowohl Namibia als auch wir wirklich nicht verdient. .. . meint Ihr Rainer Bode Hannes Keilmann |  | | Journal (article/letter/editorial) | | is likely that the combined evidence, for this region and for regions that exhibit similar characteristics...MAINE 183 clase–aluminium silicate and calcite–dolomite equilibria (Ferry, 1983). Application of THERMOCALC...biotite–muscovite–calcite–chlorite– ankeritic dolomite–plagioclase–quartz–rutile–graphite, with pronounced...prograde muscovite, biotite, calcite, ankeritic dolomite, plagioclase feldspar, quartz, pyrrhotite ± rutile...Biotite (cations p.f.u.) 15.17 9.16 13.79 18.43 Dolomite 0.31 0.43 0.52 0.02 JF5-91b JF5-91d JF5-91e |  | | Journal (article/letter/editorial) | | unter einer Deckenlast vor sich gegangen zu sein. Der zeifliche Fazieswechsel wurde z. T. yon einer be[r~idltlichen...Betic Cordilleras. A summary of the geology of this region has been given by ECELER (in press). Its structure...stages of alpine metamorphism in a rather large region comprising the area S of Lubrln (prov. Almeria)...the plurifaeial metamorphism in the investigated region are mainly derived from studies by the junior author...amphibole, biotite, calcite, chlorite, chloritoid, dolomite, epidote, garnet, glaucophane, muscovite, oligoclase |  | | Journal (article/letter/editorial) | | Bartholom~, P. (Libge, Belgique) Sur l'abondage de la dolomite et de la s6piolite dans les s~ries s~dimentalres...Identification of Detrital Feldspars" by L. van der Plas . . . . . . . . . . . . . . . . . . . . . ....of m i g m a t i t e s f r o m the P a l m e r region of South A u s t r a l i a . . . . . Yarbrough |  | Zhang, Xuefeng, Liu, Bo, Wang, Jieqiong, Zhang, Zhe, Shi, Kaibo, Wu, Shuanglin (2014) Adobe photoshop quantification (PSQ) rather than point-counting: A rapid and precise method for quantifying rock textural data and porosities. Computers & Geosciences, 69. 62-71 doi:10.1016/j.cageo.2014.04.003 | Journal (article/letter/editorial) | | the PSQ method was introduced with the oolitic dolomite samples from the Triassic Feixianguan Formation...constituent of 10% of the whole-rock volume is large (Van der Plas and Tobi, 1965). And the mean deviation increases...is a quick way to separately select calcite and dolomite minerals or pores in a stained and impregnated...shows a microscopic image of a casted oolitic dolomite sample from the Triassic Feixianguan Formation...Basin, China. Textural components include ooids, dolomite cements, bitumen partially-filled in some pores |  | Verdier‐Paoletti, Maximilien J., Marrocchi, Yves, Vacher, Lionel G., Gattacceca, Jérôme, Gurenko, Andrey, Sonzogni, Corinne, Gounelle, Matthieu (2019) Testing the genetic relationship between fluid alteration and brecciation in
CM
chondrites. Meteoritics & Planetary Science, 54 (8) 1692-1709 doi:10.1111/maps.13306 | Journal (article/letter/editorial) | | anhydrous silicates and its overall abundance of dolomite-like carbonates and acicular iron sulfides. We...the O-isotopic composition of Ca-carbonates and dolomite-like carbonates to determine their precipitation...et al. 2014; Pignatelli et al. 2016, 2017, 2018; Van Kooten et al. 2018), and oxygen isotopes are a powerful...binomial confidence interval for our estimates (Van der Plas and Tobi 1965). Matrix and chondrule modal abundances...aaragonitecalcite 1–2&; Chacko and Deines 2008). Regarding dolomite analyses, it is known that MgO, FeO, and MnO contents |  | | Journal (article/letter/editorial) | | THE MBEYA CARBONATITE L. J. FICK AND C. VAN DER HEYDE CONTENTS PAGE Abstract ...............surroundingsof the Mbeya Carbonatiteis given by van der Heyde. In it argumentsare given for a revisedage...alteredbasementgneisses. 844 L. .t. FICK AND C. VAN DER HEYDE This orebody,a carbonatiteplug consistingof...Netherlands,especiallyto its mineralogistMr. A. H. van der Veen, who has collaboratedwith the petrographi...relatively minor units. 846 L. J. FICK AND C. VAN DER HEYDE Structurallythe Basementsystemmay be characterized |  | | Journal (article/letter/editorial) | | manganese) with minor apatite, plagioclase, calcite, dolomite and microcline. A complete mineralogical account...Maharashtra, Central India, and the Gowari W a d h o n a mine-area occupies a small p a r t of the western flank...dolomitic marble of Bichua formation. At Gowari Wadhona mine-area, however, the Chorbaoli and Junewani formations...been detected for the first time in Gowari Wadhona mine-area. I t occurs as well developed crystals with...corresponds to manganiferous aegirine. ZWAA~ and VAN DER PLAS (1958) related blanfordite to acmite-aegirite |  | | Journal (article/letter/editorial) | | Dürrenstein Fm well-bedded dolomite; Upper Schlern Fm massive dolomite and wedges of limestone breccia;...200 points were counted using the method of Van der Plas and Tobi (1965). Basic numerical methods were...of Middle to Upper Triassic buildups margins, Dolomite Alps, Italy. Riv Ital Paleontol 86: 779–794 Biddle...progradational carbonate platform, Picco di Vallandro, Dolomite Alps, northern Italy. AAPG Bull 76: 14–30 Blendinger...763–786 Pia J (1937) Stratigraphie und Tektonik der Pragser Dolomiten in Südtirol. Selbstverlag, Wien |  | Solé, Jesús, Pi-Puig, Teresa, Ortega-Rivera, Amabel (2021) A Mineralogical, Geochemical, and Geochronological Study of ‘Valencianite’ from La Valenciana Mine, Guanajuato, Mexico. Minerals, 11 (7) 741 doi:10.3390/min11070741 | Journal (article/letter/editorial) | | Geochronological Study of ‘Valencianite’ from La Valenciana Mine, Guanajuato, Mexico Jesús Solé 1, * , Teresa Pi-Puig...variety of K-feldspar (adularia) from La Valenciana mine, Guanajuato, Mexico, from which three samples were...analyses of one valencianite from La Valenciana mine gave an age of 30.43 ± 0.27 Ma (2 standard deviations)...valencianite can be considered a new mineral. Valenciana Mine, Guanajuato, Mexico. Minerals 2021, 11, 741. https://...in the 20th century (see general reviews by Van der Plas [1], Smith [2,3], Ribbe [4], Brown [5], Ribbe |  | | Book | | Dr. Werner Smykatz-Kloss Mineralogisches Institut der Universitiit 7500 Karlsruhe/W. Germany Volumes 1...mineral in a sample by means of the DT A method" (V AN DER MAREL, 1956); or: "Finer distinctions and hence total...above-quoted statements of G. MULLER, LIPPMANN or VAN DER MAREL. With regard to mineralogy, the best textbooks...intentions of BARSHAD, D' ANS-LAX, WIEDEMANN and VAN TETs, and SMYKATZ-KLOSS (1967 b). The determination...points (e.g., those of metals, see WIEDEMANN and VAN TETS) has to be made in graphite crucibles with thermocouples |  | | Journal (article/letter/editorial) | | of m i g m a t i t e s f r o m the P a l m e r region, S.A. (A.J.R. White) . . . . . 165 Atlantic Ocean... . . . . . . . . . . . . . . . . . . . . L. van der Plas, "The Identification of Detrital Feldspars"... . . . . . . . . . . . . . . . Dolomite On the abundance of dolomite and s e p l o l i t e in s e d i |  | | Book | | rare-earth species found as small crystals in drusy dolomite-lined cavities. The extremely rare yttrium silicate-carbonate...transparent, tabular microcrystals on matrix of white dolomite, and rarely as doubly terminated crystals to I...localities for good ilmenite crystals exist in the region (Brunet, I 977b ). NEW YORK Amity, Orange County...Springfield show ( 1995: 582). Madawaska [Faraday] mine near Bow Lake, Hastings County. Some of the world's...property of, the old Madawaska uranium mine (called the Faraday mine before 1964). The mineral assemblage |  | | Journal (article/letter/editorial) | | decomposition of konyaite: importance in CO2 fixation in mine tailings S. J. MILLS*, S. A. WILSON{, G. M. DIPPLE...Rietveld method on natural samples from the Mount Keith mine, Western Australia. Konyaite crystallizes in space...samples of konyaite-bearing mine tailings from the Mount Keith Nickel Mine, Western Australia. Konyaite...also highly reactive and may contribute to acid mine drainage if present in large quantities, and may...structure, mine tailing, Mount Keith, Rietveld method, carbon sequestration, double salt, acid mine drainage |  | | Journal (article/letter/editorial) | | direction of transport, size and setting of the source region, climate and relief in the source area, and the...style of plate tectonics changed in the Alpine region resulting in a dextral transpressive movement of...Eynatten, 1996) and correspond to those given by van der Plas and Tobi (1965). In contrast to the Gazzi–Dickinson...are significantly lower than those given by van der Plas and Tobi (1965). 4.3. Electron microprobe analysis...quartz–chlorite– mica aggregates) and carbonate lithoclasts (dolomite, micritic calcite, sparitic calcite). The porosity |  | | Journal (volume) | | PERTTUNEN, Stromatolite Structures in Precambrian Dolomite in T ervola, North Finland ...... ......... .... Dr. Shaw, Denis M., Ph. D. Shuiab, S . M., Dr. van Straaten, L. M. J. U., Dr. Sveriges Geologiska Undersökning...C. 1, London, England Mineralog.-petrolog. lnst. der Universität, Basel, Schweiz Riksmuseet, Stockholm...composition face being (100), it was Ala A , which van der Suomen Geologinen Seura. N: 0 35. Geologiska...briefly discussed. CONTENTS Page PREFACE NORTH TIRODI MINE BLANFORDITE . . . . . . . . . . • . • . . . . |  | | Journal (volume) | | PERTTUNEN, Stromatolite Structures in Precambrian Dolomite in T ervola, North Finland ...... ......... .... Dr. Shaw, Denis M., Ph. D. Shuiab, S . M., Dr. van Straaten, L. M. J. U., Dr. Sveriges Geologiska Undersökning...C. 1, London, England Mineralog.-petrolog. lnst. der Universität, Basel, Schweiz Riksmuseet, Stockholm...composition face being (100), it was Ala A , which van der Suomen Geologinen Seura. N: 0 35. Geologiska...briefly discussed. CONTENTS Page PREFACE NORTH TIRODI MINE BLANFORDITE . . . . . . . . . . • . • . . . . |  | | Report (chapter) | | has been used to quantify the pore structure of dolomite-cemented sandstones in the Ribble Member of the...quarter of the sandstones contain > 20% dolomite. The dolomite (mean ~513CPDB +0.8%0, mean 8180 PDB -2...spicules and intercrystalline pores between the dolomite rhombs. Backscattered electron imaging and automated...of porosity present, but also to the amount of dolomite cementation. The degree of cementation influences...is lower in the cemented sandstones because the dolomite rhombs have occluded the intergranular pores, |  | | Journal (article/letter/editorial) | | Belt and Arc volcanism in the Camboon Volcanic Arc region to the east generated a great supply of recycled...the quietest tectonic and volcanic episode in the region, accompanied by subsidence of the Denison Trough...author. ** Present address: Geologisches Institut der AlbertLudwigs-Universitiit, D-7800 Freiburg im Breisgau...individual grains were not counted more than once (Van der Plas and Tobi, 1965). Dickinson's method of counting...authigenic carbonates such as calcite, high-Mg calcite, dolomite, ankerite, and siderite. The porosity in these |  | | Journal (article/letter/editorial) | | study area is located in the eastern part of the region affected by the Lepontine phase (Tertiary) of Alpine...uplift. The conclusions of Bearth [11, 12J and van der Plas [13J that the Lepontine metamorphic phase was...plagioclase in calcite-bearing rocks (23); siliceous dolomite [18, 24]; An-content of plagioclase and the appearance...iepontinische Gneisregion und die jungen Granite der Valle della Mera. Eclogae Geol. Helv. 49,251-265...Kundig, E.: Beitrage zur Geologie and Petrographie der Gebirgskette zwischen Val Calanca und Misox. Schweiz |  | | Report (volume) | | Gordon P. Eaton, Director Published in the Central Region, Denver, Colorado Manuscript approved for publication................................................ Dolomite.............................................................................................. Dolomite.............................................................................................. Dolomite.......................................................................................... 19. Dolomite with oil in nonferroan core and ferroan overgrowth |
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