Results 81 to 90 of about 684 (154)

United States Geological Survey Reports

, 1955
Report discussing an investigation of radioactivity occurrences, mostly caused by thorium in thorite and monazite, in various parts of southeastern Alaska.
Houston, J. R., Wedow, Helmuth, Jr., Bates, R. G., Velikanje, R. S.   +3 more
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Rare and exotic mineralogy of the western subcomplex of the Deadhorse Creek "diatreme", Northwestern Ontario [PDF]

, 2004
The Deadhorse Creek ‘Diatreme’ is a Proterozoic vent breccia that probably formed in response to early mid-continent rifting. Following emplacement of the breccia, the western subcomplex experienced three alteration events, producing the complex ...
Potter, Eric Gordon
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Mineralogy and mineral chemistry of rare-metal pegmatites at Abu Rusheid granitic gneisses, South Eastern Desert, Egypt

Geologija, 2011
The Abu Rushied area, situated in the South Eastern Desert of Egypt is a distinctive occurrence of economically important rare-metal mineralization where the host rocks are represented by granitic gneisses.
Mohamed Fahmy Raslan, Mohamed A. Ali
doaj  

Optimisation de la synthèse de la thorite, thsio4, par voie hydrothermale en vue d'une transposition au pusio4

, 2016
National audienceLes études réalisées sur la thorite, ThSiO4, et la coffinite, USiO4 [1,2], deux espèces naturelles relativement abondantes, ont amené à penser que la phase analogue en plutonium (IV), PuSiO4 serait susceptible de se former dans le cadre ...
Dacheux, Nicolas, Poinssot, C., Welcomme, E., Estevenon, P., Mesbah, Adel, Moisy, P., Szenknect, Stephanie   +6 more
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Thorite and Roadpatch

625097Final reportPDFResearch Paper84-08NTIS-PB92185487Concrete pavementsCurbsPotholes (Pavements)PatchingPerformance testsEvaluation and assessmentField testsArizona Transportation Research CenterTritsch, Steven L.Wolfe, TimothyArizona. Dept.

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United States Geological Survey Reports

, 1953
Report discussing a study in which "thorite-like minerals thorogummite, nicolayite, hydrothorite, maitlandite, mackintoshite, and hyblite are found to be minor chemical variants of a single phase, for which the name thorogummite has priority," and that ...
Frondel, Clifford
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The Influence of Sandstones with a High Concentration of Heavy Minerals on the Distribution of Hydrocarbons in a Reservoir Using the Example of a Field in Western Siberia

Georesursy
The article presents the results of special core studies in sandstone intervals with abnormally high values of natural radioactivity. Combining the obtained data with sedimentological analysis and actual field information made it possible to explain the ...
V. A. Kuznetsova, K. A. Kostenevich, A. D. Alimgafarova, Y. V. Panev, A. G. Safronova   +4 more
doaj   +1 more source

Apatite-hosted REE mineralization in the Eastern Ghats Mobile Belt: A future prospect for REE

Geosystems and Geoenvironment
The growing need of rare earth elements in different sectors of the modern-day world has led to their increasing demand, which is in accordance with their limited supply.
Mousumi Bhattacharjee, Kallola Kumar Behera, Smaranika Priyadarsini Swain   +2 more
doaj   +1 more source

VYUŽITÍ RTG PRÁŠKOVÉ DIFRAKCE PRO STANOVENÍ CHEMICKÉHO SLOŽENÍ MINERÁLŮ ŘADY ZIRKONU

, 2016
Calculated XRD powder patterns for sixty solid solutions in zircone-thorite-hafnone ternary system were used to provide the schematic identification diagram for the composition of zircon-group minerals.
Vávra, Václav
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Hazards of Radioactive Mineralization Associated with Pegmatites Used as Decorative and Building Material. [PDF]

Materials (Basel), 2022
El Dabe MM, Ismail AM, Metwaly M, Taalab SA, Hanfi MY, Ene A.   +5 more
europepmc   +1 more source