Brannerite: its occurrences and recognition by microprobe

by C. S. Ferris

Publisher: Colorado School of Mines] in [Golden

Written in English
Published: Pages: 35 Downloads: 581
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Subjects:

  • Brannerite.

Edition Notes

Bibliography: p. 33-35.

Statementby C. S. Ferris and C. O. Ruud.
SeriesQuarterly of the Colorado School of Mines, v. 66, no. 4, Quarterly of the Colorado School of Mines ;, v. 66, no. 4.
ContributionsRuud, C. O., joint author.
Classifications
LC ClassificationsTN210 .C68 vol. 66, no. 4, QE391.B78 .C68 vol. 66, no. 4
The Physical Object
Paginationvii, 35 p.
Number of Pages35
ID Numbers
Open LibraryOL5329386M
LC Control Number72182398

Catalog of Worldwide Tidal Bore Occurrences and Characteristics: Bartsch-Winkler, Susan, and David K. Lynch. USGS. Physical Geography. Book Sales, Inc. (Chartwell Books, Inc.) Rocks and Minerals. Precious Stones, Vol. 1 - A popular account of their characters, occurrence and applications with an introduction to their. 1 U 3 0 8 is the symbol for a chemical compound, uranium oxide, composed of three atoms of uranium to eight atoms of oxygen. Most chemical assays for uranium are expressed in terms of U 3 0 8, and ore purchases are made on that uranium content equals approximately 85 per cent of the assay expressed in terms of U 3 0 8. 2 Hardness of minerals is related to Moh's scale of 1 to 10 using. @article{osti_, title = {Uranium potential of precambrian rocks in the Raft River area of northwestern Utah and south-central Idaho. Final report}, author = {Black, B. A.}, abstractNote = {A total of geochemical samples were collected and analyzed. The sampling media included waters, stream sediments, and rocks. In addition, some stratigraphic sections of Elba and Yost. Many technical papers and letters are available for examination at the U.N.M. library and at libraries on campus at Socorro and Las Cruces. Though now out of print, Northrop's book should occupy a place on your own book shelves. As you will soon notice, I have added occasional bits of personal information and made some best guesses.

Terms such as “glauconite,” “greensands,” “glaucony,” or “glauconitic minerals,” are used frequently in the literature, and confusion persists. Glauconite, strictly speaking, is a series name for dioctahedral, interlayer-deficient micas with compositions of K R 3+ R . Hadean zircon is the oldest-surviving crustal material from the Earth's earliest geological time period, the Hadean eon, about 4 billion years ago. Zircon is a mineral that is commonly used for radiometric dating because it is highly resistant to chemical changes and appears in the form of small crystals or grains in most igneous and metamorphic host rocks. The book contained descriptions of over chemical compounds found in lichens and the science of lichen chemistry can be said to start with Zopf's work. Little was still known about the actual structures of many of those compounds but Zopf's work did give a sounder basis for the use of chemistry in the taxonomy of lichens. The Andrade rainbow hematite seam occurs within a banded-iron formation (BIF) in the Itabira Group (again, see figure 5), which has lent its name to a broad class of metamorphic rocks called itabirites. These are hematitic (rather than mica) schists that formed when the original jasper bands in the BIF recrystallized into distinct layers of.

  Geological, geochronological and sedimentary setting. The Francevillian basin consists of 35, km 2 of unmetamorphosed sedimentary rocks, with no indication of hydrothermal influence –, deposited during the Paleoproterozoic Eon in an epicontinental setting in what is now the Republic of Gabon, western equatorial Africa (Figure 1A).The sediment package is between and m . Book Sales, Inc. (Chartwell Books, Inc.) Rocks and Minerals. Bright yellow gold: Horace W. Bennett. The John C. Winston Co. Bibliography and Index of Literature on Uranium and Thorium and Radioactive Occurrences in the United States - Part 4: Margaret Cooper. Geological Society of America. Bibliography. Uranium. The key feature of the indicator mineral is its chemical composition as analyzed with the electron microprobe. A mineral is an indicator when its composition is characteristic of either the extreme melt depletion that typifies Archean continental mantle keels (peridotitic diamonds), or the high pressures found in subducted basaltic slabs. The Main Glauconite Bed (MGB) is a pelleted greensand located at Stone City Bluff on the south bank of the Brazos River in Burleson County, Texas. It was deposited during the Middle Eocene regional transgression on the Texas Gulf Coastal Plain. Stratigraphically it lies in the upper Stone City Member, Crockett Formation, Claiborne Group. Its mineralogy and geochemistry were examined in detail.

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Get this from a library. Brannerite: its occurrences and recognition by microprobe. [C S Ferris; C O Ruud]. 66 / 4 / ferris / brannerite: its occurrences and recognition by microprobe, $ 15 67 / 2 / land / stratigraphy of fox hills sandstone and associated formations, rock springs uplift and wamsutter arch area, sweetwater county, wyoming: a shoreline-estuary sandstone model for the late cretaceous, $ Brannerite is the most important uranium mineral in both investigated uranium deposits from the Bor pluton (Zadní Chodov and Brannerite: its occurrences and recognition by microprobe book.

It occurs as acicular aggregates and/or irregular grains. Larger brannerite grains are usually highly heterogeneous and on the rim are often altered to Ti-enriched brannerite and/or rutile. Brannerite from the Rožná uranium deposit is far less common in uranium Cited by: 3.

A URE REFINEMENT OF SYNTHETIG BRANNERITE, UTi,OU, AND ITS BEARING ON RATE OF ATE LEACHING OF BRANNERITE IN ORE J. SZYMET(STT occurrences and recognition by microprobe. Quart. Colarado School Mi Gess, E.J. & O'BvrNe, T. (): An absorption. the brannerite. A polished section of the NMNS specimen, prepared for microscopic study and microprobe analysis, shows much of the brannerite to be brecciated and cemented by calcite and veined and replaced by native gold (Fig.

Under moderate magnification (Fig. 2) the brannerite appears relatively uniform, except for small. Brannerite-D is distinct from -C and always contains inclusions of galena. Brannerite-B to -D all contain elevated ΣREY, with brannerite-B and -C having elevated As, and brannerite-D having elevated Nb.

All coffinite is typically globular (each globule is 2–10 μm in size) to collomorphic in appearance. Szymanski, J.T., Scott, J.D. () A crystal structure refinement of synthetic brannerite, UTi2O6, and its bearing on rate of alkaline-carbonate leaching of brannerite in ore. Microprobe work has confirmed the existence of a continuous mineral series recognized optically which ranges from uranium-free leucoxene/rutile to uranium-enriched brannerite.

However, the presence of metamict brannerite can only be verified by X-ray diffraction after prolonged heating, a process which may synthesize the latter mineral.

The Bohemian Massif is part of the European V ariscan belt, which hosts a significant quantity of uranium deposits bound by brittle shear zones developed in high-grade metamorphic rocks and/or. FERRIS C.S. and RUUD() — Brannerite: its occurrence and recognition by microscope. Colorado School of Mines Quarterly, 66, 4, 35 p.

Grandstaff D.E. () — Uraninite oxidation and the Precambrian atmosphere. This paper is an overview of the diverse types of uranium deposits that are recognized in the world, exclusive of Europe, and presents brief descriptions of selected deposits of each major type.

Descriptions of geology, mineralogy, genesis and economics of each type of deposit precede summaries of selected occurrences of most types. The most common minerals on earth Information for Educators Mindat Articles The Elements Books & Magazines Minerals by Properties Minerals by Chemistry Advanced Locality Search Random Mineral Random Locality Search by minID Localities Near Me Search.

Composition of Middle Precambrian uraniferous conglomerate in the Elliot Lake--Agnew Lake area of Canada. Precambrian Res., Multielemental instrumental neutron-activation analysis has been used to study uran- iferous conglomerate and associated rocks in the Middle Precambrian Elliot Lake--Agnew Lake area of Ontario, Canada.

The quartz-pebble conglomerates reported in this work are predominantly matrix supported and oligo-mictic in nature. Petrography, microprobe data, and scanning electron microscopy studies reveal the presence of chromite, zircon, rutile, magnetite, monazite, pyrite, chalcopyrite, pyrrhotite, stibnite, and brannerite.

PDF | OnH Kucha and others published New minerals and the first mineral occurrences in Kupferschiefer (U, REY, HgS, metal chlorides PtAs 2, Pt(Sb,Bi) 2, PtBi 2), Poland, and.

Given the emerging recognition that bedrock may be a nonpoint source for elevated background nitrogen concentrations in certain ecosystems, it is important to document the current state of knowledge of nitrogen in rock, including its forms, quantification, and fate during weathering.

Forms and Characterization Bulk Nitrogen Characterization. Russian Alexandrites fulfils its brief in relation to the analysis of Russian alexandrites and as such will be an invaluable reference. However, as its title warns, those looking for a broad overview of chrysoberyl and alexandrite will find this book too specialised for their needs.

The study area is located in the Central Eastern Desert between latitude 25°57′–26°02′ N and longitude 33°55′–34°02′ E, covering an area of about 60 km 2 ().The Central Eastern Desert of Egypt is a part of the Pan African Arabian-Nubian Shield (ANS) that was discussed and described by many authors as displaying a tectonized regime involving complicated geologic processes.

The goal of this Special Issue is to provide a platform for geoscientists dealing with geology and mineralogy of uranium deposits, in order to discuss new insights on their geological settings, composition and evolution of host rocks series (e.g., origin of episyenites, aceites and other altered rocks, origin of unconformity, sandstone and.

Recognition of the potential for a major, open-pittable orebody led to the acquisition and exploration of the Kansanshi property by Cyprus Amax Minerals Co. The Kansanshi deposit was recently estimated to contain million tonnes grading percent Cu and g/t Au, making it one of the largest Zambian copper deposits outside the copper belt.

Anais da Academia Brasileira de Ciências (Ta+Nb) ratios as geochemical indicators of pegmatite fractionation. Surprisingly, preliminary microprobe data allowed recognizing some species, so far unknown in the Province, namely titanian ixiolite, fersmite, brannerite, strüverite, natrobistantite, plumbo- and stibiomicrolite, plumboand.

The present work aims at identifying Nb-Ta- Zr-Hf- REE- Th-U-bearing two-mica granite from geological, geophysical cross-sections and mineral chemistry studies from three boreholes at G. El Sela shear zone. Microscopically, the three boreholes are composed mainly of two-mica granite.

They are composed of K-feldspar, plagioclase, quartz, biotite and muscovite. You can write a book review and share your experiences. Other readers will always be interested in your opinion of the books you've read. Whether you've loved the book or not, if you give your honest and detailed thoughts then people will find new books that are right for them.

Studies of the natural occurrences of uranyl minerals can be used to test the extrapolation of results from short-term experiments to periods relevant to high-level nuclear-waste disposal (Ewing ) and to assess models that predict the long-term behavior of spent nuclear fuel buried in a geologic repository (Bruno et al.

/ Neumann (), covering all minerals recorded on its mainland upto about The index contains ca. different mineral names, including varieties and synonyms.

A large numberof minerals newto Norway have been recorded since the book appeared. The inventory given below is an attempt to list all accepted mineral species from Norway. Slowly, reservoir characterization came into its own as a quantitative, multidisciplinary endeavor requiring a vast array of skills and knowledge sets.

Perhaps the biggest attractor to becoming a reservoir geologist was the advent of fast computing, followed by visualization programs and theaters, all of which allow young geoscientists to. Cambridge Core - Mineralogy, Petrology and Volcanology - Petrology of Sedimentary Rocks - by Sam Boggs, Jr.

[1] In environmental magnetism, rock and mineral magnetic techniques are used to investigate the formation, transportation, deposition, and postdepositional alterations of magnetic minerals under the influences of a wide range of environmental processes.

All materials respond in some way to an applied magnetic field, and iron‐bearing minerals are sensitive to a range of environmental. Click the publisher below. A list of books will appear below the publisher name.

For a listings of other DOIs please view the journal or the conference proceedings. Audio Books & Poetry Community Audio Computers, Technology and Science Music, Arts & Culture News & Public Affairs Non-English Audio Spirituality & Religion Librivox Free Audiobook Fast And Easy Website And SEO Tips podcast_between-panels_ Arts (Secondary) Laurel church of Christ Kid Podcast, By Kids, For Kids Sea Sex and Soul's.The survey comprised the inspection of the clay occurrences and the examination of samples by officers of CSIRO.

The object of the work was to obtain information on the characteristics of the clays whereby it would be possible to plan more detailed investigations of the more promising materials, both in the laboratory and in the field.Gordaite is a sulfate mineral composed primarily of hydrous zinc sodium sulfate chloride hydroxide with formula: NaZn 4 (SO 4)(OH) 6 Cl6H 2 O.

It was named for the discovery location in the Sierra Gorda district of te forms as tabular trigonal crystals. Gordaite first appeared after a research dive in September from the Juan de Fuca Ridge of the northeastern side of the.