 | | Journal (article/letter/editorial) |
| pegmatites within the Tysfjord granite, northern Norway Tomas Husdal Introduction The Tysfjord granite...including well-known collecting sites like Hundholmen, Drag and Tennvatn. Large, well-formed crystals make thalenite-fv)...from the pegmatites makes this one of the areas in Norway richest in different species. This work is presenting...from Fauske to Efjorden in the northern part of Nordland county. It is a foliated pale grey to pale red...Hundholmen (1906) and in different pegmatites in the Drag area (1907), and continued in these and additional |
 | | Journal (article/letter/editorial) |
| Minerals of Norway - the (almost) complete inventory Gunnar Raade Preamble A monographic survey of the...the minerals of Norway (Norges Mineraler) was published by Neumann (1985), covering all minerals recorded...and synonyms. A large number of minerals new to Norway have been recorded since the book appeared. The...attempt to list all accepted mineral species from Norway, including those from Neumann (1985) and later...& Nickel 2001). Names of minerals discovered in Norway after the edition of Neumann's monograph are in |
 | | Report (volume) |
| paragenesis __________________ ---------- __ ------Uraninite----------------------------------------------...________________ ----- ______ -----Distribution of uraninite _______________________________________ _ Phillips...pegmatite intrude the diorite and hornblende gneiss. Uraninite occurs in hornblende pegmatite and in adjacent...northeast end of this ·zone plunges northeast. Tl;le uraninite is in crystals and grains, most of which range...millimeter to a centimeter in diameter. Subhedral uraninite crystallized from the pegmatite magma. The isotopic |
 | | Journal (article/letter/editorial) |
| or more hydrocarbons(or oxyhydrocarbons) with uraninite,the particlesof the latter rangingfrom macroscopic...macroscopic to sub-microscopic size. Commonlythe uraninite(exceptionallysomeotherradioactivemineral) is seento...difficultto find proofthat the thucholitepost-datesthe uraninite he ignoresthe conclusions of mineragraphicinvestigationsby... 1951, On thucholite and related hydroearbon-uraninite complexes: Bull. Geol. Surv. Gr. Britain, no...."First--Bancroft alwaysstressedthe importanceof drag folds as being associatedwith the ore zones. This |
 | | Report (volume) |
| _________ _ Bedding-plane slippage, faults, and drag folds ________________ _ Cleavage _____________...of Jim Thorpe, and near Penn Haven Junction. Uraninite and clausthalite in tiny particles are closely...This interval is thickened by about 50 feet due to drag folding] 409+25 to 407+75________ Very fine grained...Red------------------------------------------------------- Drag fold--------------------405+68 to 405+63. 5______...from about 70° NW. to vertical. There are local drag folds and minor faults with a few feet of displacement |
 | | Journal (article/letter/editorial) |
| the thick lower Proterozoic sequence, that the uraninite is always intimately associated with apatite and...between carbonates and more elastic hornblende slates; drag folds are characteristics of the latter. The greatest...OZHINSKII assumes the form of occurrences of small uraninite grains which stand in an intimate paragenetic...[University of Montana] at 07:06 04 April 2015 The uraninite which occurs in marbles and limestone is especially...Figure 1. White area represents apatite and uraninite (1), intersection of apatite flakes and amphibole |
 | Bhola, K. L., Rama Rao, Y. N., Sastry, C. S., Mehta, N. R. (1966) Uranium mineralization in Singhbhum thrust belt, Bihar, India. Economic Geology, 61 (1) 162-173 doi:10.2113/gsecongeo.61.1.162 | Journal (article/letter/editorial) |
| and north-east; these were accompaniedby numerous drag folds, flexures and crenulationson the limb of the...Uranium Mineralization Along the Thrust Belt.--Uraninite occurs as minute disseminations and micro-veinlets...eastern part of the belt has apatite-magnetite-uraninite assemblage, in which both the former mineralshave...fracturesservedas channelsfor mineral-bearingsolutions,and uraninite and a numberof other mineralswere depositedas...which is suggestiveof warping or crossfolding. Minor drag folding has also been observed.Due to the effectof |
 | | Report (volume) |
| uraninite______ '. 57. Camera-lucida drawing of uraninite-bearmg veinlet.______ 58. Camera-lucida drawing...short dimension is commonly less than 5 feet. Uraninite is the primary uranium mineral in deposits near...unmetamorphosed siltstone the primary uranium occurs in uraninite and in several unidentified forms. 415 416 ...nearly flat lying. Locally, blocl? faulting and drag have produced steeper dips, but in general the structure...the relict bedding and form sill-like bodies. Uraninite-bearing deposits in the Workman Creek area commonly |
 | | Journal (article/letter/editorial) |
| indicate that lift forces are more important than drag forces on rougher bed surfaces. When the critical...thus experience less roughness but experience more drag and are transported in contact with the bed over...flood cycle. Movement was controlled by the greater drag force and bottom velocity in the deepest part of...sympathetic relationship existed between gold, uraninite and pyrite minerals in each placer. Similarly...cross-bedding. Heavy minerals such as gold and uraninite are present in smaller quantities alongside nodular |
 | | Journal (article/letter/editorial) |
| initially distorting the foliation during their growth. Drag of foliation occurs across many chiastolite prism...which are nearly parallel to the foliation. The drag and the bulge of foliation are interpreted to have...oxidized coating rimming a black interior of uraninite and sulfides. Geochemical sampling of soils surrounding...Radioactive minerals of the deposit included uraninite, schoepite, epiianthinite, becquerelite,soddyite...chalcocite, covellite, galena, pyrite, and marcasite. Uraninite occurs in concentric banded and colloform masses |
 | | Journal (article/letter/editorial) |
| Webster's Falls. october 24, 1953.The Club met at Drag Lake Lodge, Haliburton for the Autumn Field Trip... Hill Top Mine and Fission Mine and gathered uraninite, fluorite, apatite' magnetite, scapolite. Dr. |
 | | Journal (article/letter/editorial) |
| currentknowledge of the solubilityof quartz and uraninite. Ore deposition(predominantlyasuraninite)post...ary ore, of whichthree variantshavebeen described Drag foldsassociated with the faultcanbe seenin duringthisstudy...Adjacentto veins,uraninite TABLEl. Compositionof Primary and SecondaryOre Vol percent Uraninite-coffinite...chalcopyrite growth. Veins of chalcopyritein uraninite demonstrate thelaterageofthesulfide.Rarecorroded...sulfidewhichprecipitatedcontemporaneouslywith uraninite. Swarmsof 0.5-mm-wide,fine-grained dolomiteand |
 | | Journal (article/letter/editorial) |
| underflow (see bibliography). This underflow exerted a drag on the crustal blocks of the continent which caused...bathyrheal underflow which, although it exerted a drag on the whole of the Australian continent, had its...bathyrheal underflow during the Pre-Cambrian. Continued drag on the crustal blocks by the underflow produced...the bathyrheal underflow continued to exert its drag on the crustal blocks and the area yielded to the...the couple. All these movements were caused by the drag of the bathyrheal underflow. A large tensional fault |
 | | Book |
| ... ... .... . .... ..... . . ...... . Zoned Uraninite Pegmatites ...................................... . . . . . . . . . . . Alum Shale, Sweden and Norway . . . . . . . . . . . . . . . . . . . . . . . ... . Zr-Fe 3.......... . 5. Anions Examples Uraninite Pyrochlorc-microlite, apatite, zirkelite, crandalJite...cro]j te Uraninite, zircon Uraninite Uraninite, fergusonite, samarskite, xenotime Uraninite Urau.inite...always well crystallized. Metamict pitchblende ( uraninite) has been reported ( Conybeare and Ferguson, 1950) |
 | Landry, Kerstin, Adlakha, Erin, Roy-Garand, Andree, Terekhova, Anna, Hanley, Jacob, Falck, Hendrik, Martel, Edith (2022) Uranium Mineralization in the MacInnis Lake Area, Nonacho Basin, Northwest Territories: Potential Linkages to Metasomatic Iron Alkali-Calcic Systems. Minerals, 12 (12) 1609 doi:10.3390/min12121609 | Journal (article/letter/editorial) |
| Microscopic and compositionally heterogeneous altered uraninite occurs (i) as overgrowths on partially dissolved...hematite-sericite-chlorite ± quartz breccia and stockwork. Both uraninite types are Th poor (<0.09 wt.% ThO2 ) and variably...Rare-earth element (+Y) concentrations in type-i uraninite are high, up to 9.5 wt.% Σ(REE+Y)2 O3 with CeN.../YN values > 1, similar to REE compositions of uraninite in metasomatic iron and alkali-calcic systems...Deposit, Beaverlodge District, Canada). Both uraninite types are variably rich in Ba (up to 3 wt.% BaO) |
 | | Catalog/List |
| five meters· and cabinet drawers loaded with uraninite register well below haza~dous continuous exposure...Comblain, is exceptional. Not only is the scien- Uraninite tific French relatively easy to read by non-Francophiles...classical mineral zonation starting from jet-black uraninite to band of massive orange curite (4 .2 x 0.8 cm)...crystalline carpet of rutherfordine on side of uraninite matrix (2 .7 x 2.5 cm). • 83B04 .. . . . . . ...meta-torbernite I), all on jet-black unoxidized uraninite. Minor orange fourmarierite crystals on back. |
 | | Journal (article/letter/editorial) |
| subenvironments that were most effective at concentrating uraninite and brannerite. These Paleoproterozoic, syndepositional...with lesser amounts of feldspar and sericite. Uraninite and a diverse suite of other heavy minerals (Parvianinen...concentrations in the matrix of these conglomerates. The uraninite grains average approximately 1 mm in diameter...Uranium-to-thorium ratios of approximately 10 for the uraninite indicate derivation from a pegmatitic source (Roscoe...width-to-depth ratio and thus keep the frictional drag SAND ON BAR TAIL LO NG ITU DI 1140 NA LB |
 | | Journal (article/letter/editorial) |
| haveshownthat an axial planeshearhasdeveloped in the drag[oldassociated with the Giant'sReef faulting,and...Mineragraphi½Inv., Special Rept., 1950. Stillwell, F. L., Uraninite from Rum Jungle FergussonRiver: C.S.I.R.O. Mineragraphlc |
 | | Report (issue) |
| Pegmatite and associated granite gneiss __ ___ Uraninite-bearing pegmatite __ _____________ Other pegmatites...yielded in part by smallscale folding, resulting in drag folds. The Precambrian intrusive rocks were emplaced...__ -..__-. Central City 2. Pegmatite.. ______ Uraninite... 1, 300_fclOO K-Ar Rb-Sr 1,230 1,350 1,210...cordierite-anthophyllite rocks of the Arendal district, Norway. Isochemical metamorphism of original magnesia-rich...sodium is unknown. TTRANINTTE-BEARING PEGMATITE A uraninite-bearing pegmatite that has been dated by absolute |
 | | Journal (article/letter/editorial) |
| about 60ø west, but are interruptedby a conspicuous drag fold with r•ght-hand shear. The axial planesof the...by extrapolationof syngeneticprinciples. The uraninite here occnrsin a sandyvery do]omiticformat{on,originally...Australia. At Mindola, and elsewhereon the Copperbelt,uraninite and copper sulfide m{neralizat{onare ant{pathetic |
 | | Journal (article/letter/editorial) |
| miniature. One of theseminor setsof folds consistsof drag folds aboutsub-horizontalaxes sub-parallelto the...thesefoldsthe foliation planeshave beenpuckeredand drag foldedaboutaxes that are either horizontalor plungeawayfrom...weak to incipientcrossedgirdles about the minor drag fold axesin additionto the almostcompletegirdlesshownin...incipientrecrystallization duringthe development of the minor drag folds. Faults.--thereis a lineof fracturefaultingin...stressand the attainmentof progressive rigidity drag developed within the rock pile giving rise to the |
 | | Report (issue) |
| Peridotite at Engenbræ, Holandsfjord, Northern Norway. With 13 textfigures. Sammendrag: Bergartene omkring...1929: The Cambrian beds of the Mjøsen district in Norway. - Norsk geol. tidsskr., 10, h. 3-4, pp. 307-365...1953: The Middle Ordovician of the Oslo Region, Norway. l. Introduction to stratigraphy. - Norsk geol...chalcocite, bornite, malachite, chrysocolla, uraninite (Gamle gruve), kasolite (Gamle gruve), uranotil...pegmatites. Brookite and kasolite are new species for Norway. Litteratur. Dahl!, Telle/. Dagbog 1863. NGU's |
 | | Report (volume) |
| the anticline and are locally deformed into tight drag folds or broad, gentle warps. The Precambrian rocks...Associated minor fold structures, such as warps and drag folds, essentially parallel the anticlinal axis...Associated with this major structure are many small drag folds which plunge gently to the north-northeast...and Wood mines include mineral alinement, small drag-fold axes, warps, rodding, and corrugations. A lower-hemisphere...the occurrence of nitrogen in uraninite and on the composition of uraninite in general: U. S. Geol. Survey |
 | | Journal (article/letter/editorial) |
| Espinhares the principal ore minerals are coffinite, uraninite and pitchblende, whereas at Itataia the only ore...and microgranular uraninite and coffinite. Microprobe analysis revealed tiny uraninite crystals on grain...regional trend of this sytem, a feature attributed to drag-folding along the Groairas and Itataia faults. The |
 | | Journal (article/letter/editorial) |
| could be caused by anticlockwise rotation due to drag on tlie sinistral faults (Blenkinsop, pers. commun...al. (1992) indicated that the coarse-grained uraninite mineralization which has the greatest economic...Luiswishi deposit the oldest is a n anisotropic uraninite with UO,/UO, > 1, then a grey * Gundiuiinii...ARC isotropic uraninite (UO,/UO, = 1) and the youngest is a light grey isotropic uraninite with UO,/UO...(Loris et al., 1997). Therefore, the various uraninite ages recorded in the Lufilian arc are correlated |
