... on the distribution of Paleozoic magmatic tin-tungsten mineralization : Mineralium Deposita , v. 50 , p. 327 – 338 , https://doi.org/10.1007/s00126-014-0540-5 . Romer , R.L. , and Kroner , U. , 2016 , Phanerozoic tin and tungsten mineralization—Tectonic controls on the distribution of enriched...

...Panlao Zhao; Shunda Yuan; Anthony E. Williams-Jones; Rolf L. Romer; Chen Yan; Shiwei Song; Jingwen Mao Abstract Tungsten and Sn display similar behavior during magmatic processes and are commonly associated spatially and genetically with highly evolved granites. Nonetheless, they typically form...

... . The mineral was named hydroplumboelsmoreite based on the predominance of Pb, W, and molecular H 2 O in the A , B and Y sites, respectively. Associate Editor: Michael Rumsey hydroplumboelsmoreite elsmoreite pyrochlore supergroup crystal structure tungsten * Author for correspondence: Li...

... riebeckite granite suite (541–485 Ma). Tungsten mineralization occurs within W-bearing quartz veins and a disseminated type confined to the monzogranite. Whole-rock geochemical data classify the granodiorite as a late-orogenic I-type with calc-alkaline affinity, while the monzogranite and alkali riebeckite...

... Varisque Tungsten and tin mineralization worldwide is spatially associated with granitoid intrusions forming a large variety of magmatic-hydrothermal ore deposits including greisens, veins, stockworks, skarns, pegmatites, porphyries, and breccia pipes ( Černý et al. , 2005 ; Romer and Kroner...

... Report on the Deer MORTENSEN, J.K. (1999) Intrusion-related gold deposits Horn Mine Property, Lindquist Lake, Tweedsmuir associated with tungsten-tin provinces. Mineralium De- Recreation Area, Omenica Mining Division. British posita 34, 323 334. Columbia Geological Survey, Paper 41/0761, 67 pp. TOOTH, B...

... precursors can be efficient vehicles for tungsten in sedimentary rocks, leading to their enrichment in W and possibly later fertility with respect to igneous ore deposits. Leucoxene, a nanocrystalline mixture of Ti and Fe oxides, is an especially suitable candidate for such a vehicle. * E-mail...

...Stuart J. Mills; Pavel M. Kartashov; Anthony R. Kampf; Mike S. Rumsey; Chi Ma; Chris J. Stanley; John Spratt; George R. Rossman; Margarita I. Novgorodova Abstract Native tungsten (IMA2011-004), W, is officially described as a new mineral from gold placers in the Bol'shaya Pol'ya river valley...

... of tin and tungsten. Inset shows the locations of the study area and the Leinster batholith in Ireland. B: Lithium pegmatites intrude the Tullow Lowlands pluton (TLp), minor granodioritic sheets, and Ordovician rocks of the Maulin Formation. C: Local geology of albite-spodumene pegmatite bodies at Aclare...

...-dimensional kagomé networks in minerals where the kagomé node atoms are octahedrally coordinated in hexagonal tungsten bronze (HTB) arrays. Octahedral tilting, coupled with capping of the apical anions of the triangular groupings of octahedra in the HTB layers, gives rise to several important mineral groups...

... at the boundary between the W-rich and W-depleted domains. STEM energy-dispersive X-ray mapping reveals W- and Pb-enrichment along 2–3 nm-wide features defining the twin planes; W-bearing nanoparticles occur along the splays. Tungsten and Pb are both present, albeit at low concentrations, within Na–K–Cl-bearing...

... of the crystal structure ( R 1 = 0.075) gave the following data: orthorhombic, space group Pban , a = 7.2585(4), b = 25.8099(15), c = 3.8177(2) Å, Z = 2. Tewite has a new tungsten-bronze (TB)-type derivative structure. Distorted TeO 6 octahedra break TB slabs into ribbons which are displaced by ½ a relative...

... by the Mineralogical Society of America 2018 Mineralogical Society of America Porphyry deposits molybdenum tungsten diffusivity granitic melt Porphyry-type ore deposits, of which the majority were formed in the Phanerozoic ( Kesler and Wilkinson 2008 ), are commonly found at oceanic or continental...

...Bin Yang; Yin-he Xiang; Xiangping Gu Electron-microprobe analysis and X-ray micro-diffraction show the presence of tungsten-bearing rutile in the Jinling, Jiaojia, Linglong and Hexi gold deposits in the Jiaodong gold province. The tungsten-bearing rutile appears both in gold-bearing quartz veins...

... minerals. Tin hot spots and anomaly zones were revealed along the Volturno River and urban areas. Tungsten is the element out of the three which is best related to the presence of volcanic rocks belonging to the Neapolitan Potassic Province. Topsoil samples were collected across the Campania Region...

... with interpretations made based on the δ 18 O scheelite data. This is particularly relevant to the skarn settings where the host rocks are carbonates, which in general have elevated Sr contents ( Kinsman 1969 ). In addition, the in situ Sr isotope study of scheelite from the Felbertal tungsten deposit (Austria...

... crustal levels (6–7 km), generating a temperature gradient which triggered contact metamorphism at 200 MPa and 500–600°C which was sufficient to promote a vigorous hydrothermal convection cell (Noronha and Ribeiro, 1983 ; Noronha et al. , 2000 ). The Borralha ore deposit is an important tungsten...