 | | Journal (article/letter/editorial) | | ARTICLE Source of boron in the Palokas gold deposit, northern Finland: evidence from boron isotopes and...and major element composition of tourmaline Jukka-Pekka Ranta 1 & Eero Hanski 1 & Nick Cook 2 & Yann...recently discovered Palokas gold deposit is part of the larger Rompas-Rajapalot gold-mineralized system...PerĂ€pohja Belt, northern Finland. Tourmaline is an important gangue mineral in the Palokas gold mineralization...mineralization. It occurs as tourmalinite veins and as tourmaline crystals in sulfide-rich metasomatized gold-bearing |  | MolnĂĄr, Ferenc, OâBrien, Hugh, Stein, Holly, Cook, Nick (2017) Geochronology of Hydrothermal Processes Leading to the Formation of the AuâU Mineralization at the Rompas Prospect, PerĂ€pohja Belt, Northern Finland: Application of Paired UâPb Dating of Uraninite and ReâOs Dating of Molybdenite to the Identification of Multiple Hydrothermal Events in a Metamorphic Terrane. Minerals, 7 (9) 171 doi:10.3390/min7090171 | Journal (article/letter/editorial) | | the Rompas Prospect, PerĂ€pohja Belt, Northern Finland: Application of Paired UâPb Dating of Uraninite...D. J. Cook 4 Geological Survey of Finland, FI-02151 Espoo, Finland; hugh.obrien@gtk.fi AIRIE Program...0315 Oslo, Norway Mawson OyâFinland, Ahjotie 7, 96320 Rovaniemi, Finland; ncook@mawson.fi Correspondence:...metasedimentary and metavolcanic units at the Palokas prospect; a few kilometres from Rompas. Results...the Paleoproterozoic PerĂ€pohja belt, northern Finland (Figure 1) showed that accumulation of gold was |  | | Journal (article/letter/editorial) | | in the example of the deposits in the Central Lapland Paleoproterozoic belt, gold mineralization formed...boundary, a suture delineating the core of the LaplandâKola orogen in the north, and the series of overthrusts...segment of the Russian Arctic and in northern Finland. In the article below, data on the age of pre-ore...the better-studied gold deposits in the Finnish Lapland. Minerals 2022, 12, 537. https://doi.org/10.3390/min12050537...the betterâstudied gold deposits in the Finnish Lapland. Minerals 2022, 12, 537 2 of 21 2. Distribution |  | Rasilainen, Kalevi, Eilu,Pasi, Huovinen, Irmeli, Konnunaho, Jukka, Niiranen, Tero, Ojala, Juhani, TörmĂ€nen, Tuomo (2020) Quantitative assessment of undiscovered resources in Kuusamo-type Co-Au deposits in Finland. Bulletin de la Commission GĂ©ologique de Finlande Vol. 410. Geological Survey of Finland | Journal (volume) | | Geological Survey of Finland 2020 Quantitative assessment of undiscovered resources in Kuusamo-type...Kuusamo-type Co-Au deposits in Finland Rasilainen Kalevi, Eilu Pasi, Huovinen Irmeli, Konnunaho Jukka, Niiranen... Geological Survey of Finland, Bulletin The Bulletin of the Geological Survey of Finland publishes the results...the Scientific Editor. GEOLOGICAL SURVEY OF FINLAND Bulletin 410 Quantitative assessment of undiscovered...undiscovered resources in Kuusamo-type Co-Au deposits in Finland by Rasilainen Kalevi, Eilu Pasi, Huovinen Irmeli |  | Hartmann, LĂ©o A., Werle, Mariana, Michelin, Cassiana R.L., Lana, Cristiano, Queiroga, GlĂĄucia N., Castro, Marco P., Arena, Karine R. (2019) Proto-Adamastor ocean crust (920 Ma) described in Brasiliano Orogen from coetaneous zircon and tourmaline. Geoscience Frontiers, 10 (4) 1623-1633 doi:10.1016/j.gsf.2018.09.018 | Journal (article/letter/editorial) | | Brasiliano Orogen from coetaneous zircon and tourmaline LĂ©o A. Hartmann a, *, Mariana Werle a, Cassiana...We use multi-technique U-Pb-Hf zircon and d11B tourmaline isotopic and elemental compositions. The host...has âoceanicâ composition (e.g., U/Yb < 0.1). Tourmaline is dravite with d11B ÂŒ ĂŸ1.8& (Tur 1), 0& (Tur...licenses/by-nc-nd/4.0/). Keywords: Coeval zircon and tourmaline Bossoroca ophiolite Early Brasiliano Orogen Zircon...Zircon U-Pb-Hf isotopes Zircon trace elements Tourmaline boron isotopes 1. Introduction Proto-Adamastor |  | | Journal (article/letter/editorial) | | by chemical and boron isotopic composition of tourmaline Zhengyu Long a, b, Xiaoyan Yu a, *, Yuyu Zheng...T I C L E I N F O A B S T R A C T Keywords: Tourmaline Boron source Trace elements Emerald deposit China...present the petrological and geochemical study of tourmaline from the Dayakou deposit, aiming to constrain...ore-forming fluid and emerald genesis. Two types of tourmaline, namely type-I formed in emerald-bearing quartz...endmember and belong to the alkali group. The type-I tourmaline has a higher Fe/(Fe + Mg) ratio (0.28â0.47) with |  | | Book | | Mineral Deposits of Finland Edited by Wolfgang D. Maier Raimo Lahtinen Hugh OâBrien AMSTERDAM âą BOSTON...Geological Survey of Finland, Espoo, Finland I. Haapala University of Helsinki, Helsinki, Finland T. Halkoaho...Geological Survey of Finland, Kuopio, Finland E. Hanski Oulu Mining School, Oulu, Finland A. Hartikainen Geological...Geological Survey of Finland, Kuopio, Finland C. Hartshorne AngloAmerican Exploration, London, UK T....Mawson Resources, Finland E. Heilimo Geological Survey of Finland, Kuopio, Finland P. Heino Yara Suomi |  | | Journal (article/letter/editorial) | | minerals Article Tourmaline as a Recorder of Ore-Forming Processes in the Xuebaoding W-Sn-Be Deposit...China: Evidence from the Chemical Composition of Tourmaline Xinxiang Zhu 1,2 , Markus B. Raschke 3 and Yan...and schist (Zone III). Due to the stability of tourmaline over a wide range of temperature and pressure...reflect the evolution of the ore-forming fluids. Tourmaline is an important gangue mineral in the Xuebaoding...be distinguished: tourmaline disseminations within the granite (type I), tourmaline clusters at the margin |  | | Journal (article/letter/editorial) | | comprises hercynite- and corundum-bearing zones. Tourmaline-rich zone only occurs when the pegmatite veins...garnet-biotite/phlogopite geothermometer, and the higher tourmaline XMg, strongly indicate amphibolite facies 1 ...the Hafafit complex. Restricted occurrence of tourmaline-rich zone at the ultramafic-granitic gneiss contact...biotite-rich granitic gneiss. Keywords: Corundum, tourmaline, hercynite, desilicated pegmatite, peridotite...(hercynite), allanite, almandine-rich garnet, tourmaline, margarite, vermiculite, anthophyllite, enstatite |
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