Author: F. W. BreaksPublisher:
ISBN: 9781424925667
Category : Granite
Languages : en
Pages : 143
Book Description
Fertile and Peraluminous Granites and Related Rare-Element Mineralization in Pegmatites, North-Central and Northeastern Superior Province, Ontario
Author: F. W. BreaksPublisher:
ISBN: 9781424925667
Category : Granite
Languages : en
Pages : 143
Book Description
Fertile Peraluminous Granites and Related Rare-Element Mineralization in Pegmatites, Superior Province, Northwest and Northeast Ontario
Author: F. W. BreaksPublisher: [Sudbury] : Ontario Geological Survey
ISBN: 9780779442867
Category : Mines and mineral resources
Languages : en
Pages : 179
Book Description
The Georgia Lake Rare-Element Pegmatite Field and Related S-Type, Peraluminous Granites, Quetico Subprovince, North-Central Ontario
Author: F. W. BreaksPublisher:
ISBN: 9781424969326
Category : Pegmatites
Languages : en
Pages : 176
Book Description
Electron Microprobe and Bulk Rock and Mineral Compositions from Rare-element Pegmatites and Peraluminous, S-type Granitic Rocks from the Fort Hope Pegmatite Field, North-central Superior Province of Ontario
Author: Ontario Geological SurveyPublisher:
ISBN: 9781424973606
Category :
Languages : en
Pages :
Book Description
Origin and Evolution of Peraluminous Granite and Rare-element Pegmatite in the Dryden Area, Superior Province of Northwestern Ontario [microform]
![Origin and Evolution of Peraluminous Granite and Rare-element Pegmatite in the Dryden Area, Superior Province of Northwestern Ontario [microform] PDF](https://books.google.com/books/content/images/frontcover/-sIWvwEACAAJ?fife=w80-h100)
Author: Frederick William BreaksPublisher: National Library of Canada
ISBN: 9780315544048
Category :
Languages : en
Pages :
Book Description
Scientific Investigations Report
Author: Sharon E. KroeningPublisher:
ISBN:
Category : Earth sciences
Languages : en
Pages : 122
Book Description
Geology and Petrochemistry of Granitic Pegmatite in Jema’a Pegmatite Field, Kaduna State
Author: Ahmed Isah HarunaPublisher: GRIN Verlag
ISBN: 3656280134
Category : Science
Languages : en
Pages : 221
Book Description
Doctoral Thesis / Dissertation from the year 2012 in the subject Geography / Earth Science - Geology, Mineralogy, Soil Science, grade: "none", Abubakar Tafawa Balewa University (School of Science), course: Economic Geology-Mineral Exploration, language: English, abstract: The research work “Geology and Petrochemistry of Granitic Pegmatites in Jema’a Field” is a systematic study of the pegmatites in relation to the adjoining granitoids (biotite muscovite granite, albite granite and granite aplite) with a view to understanding their geological and geodynamic evolution and subsequent economic potential through the behavior of rare elements. The field work was conducted on a scale of 1:50, 000. 33 rocks and mineral separates extracted from pegmatites were analyzed. The samples were subdivided into two parts; one part was analyzed using X-Ray Fluorescence to generate data on major and minor elements, while Instrumental Neutron Activation Analysis was used to generate data on trace elements. The other part of the samples was made into thin section for petrographic studies. Petrochemical and petrographic interpretations concur on the changes in colour of micas from brown biotite in granitoids to blue muscovite, to purplish green mica to purple mica in the pegmatites corresponding to increase in rare elements (Rb, Cs, Na, Ta, Nb, Ga) and volatiles (P, H2O, F) from the granitoids into the pegmatites. This constitute a fractionation trend. This is also strongly supported by fairly consistent increase in Aluminum Saturation Index (A/CNK), normative corundum, normative albite, Lost on Ignition (LOI), differentiation Index (DI) and corresponding decrease in Ba, Zr and Ti. The pegmatites contains more fluxes and liquidus depressing elements (P, H2O, F) especially phosphorus. The granitoids (biotite muscovite granite, albite granite and granite aplite) are therefore fertile, peraluminous, siliceous and S-type and are parental to the pegmatites. The feldspars display perthitic textures which show incomplete solid solution and lowering of liquidus. The tectonic discrimination of the granitoids and the pegmatites show that they were formed within syncollisional, peraluminous, and active continental margin. The research suggest fractionation as a metallogenetic process. The genetic model presents the granitoids ; biotite muscovite granite, albite granite and granite aplite as products of internal chemical differentiation of a fractionating batholiths where NaO replaces K2O as the system is cooling. This is common to most granite-rare-elements-pegmatites systems all over the world. Fractionation via rare elements accumulations is therefore an exploration tool.
Rare-element Geochemistry and Mineral Deposits
Author: Geological Association of CanadaPublisher: St. John's, N.L. : Geological Association of Canada
ISBN:
Category : Science
Languages : en
Pages : 360
Book Description
Lanthanides, Tantalum and Niobium
Author: Peter MöllerPublisher: Springer Science & Business Media
ISBN: 364287262X
Category : Science
Languages : en
Pages : 383
Book Description
Rare Earth Elements (REE) as well as tantalum and niobium are of tremendous importance because of their specific high-technology applications. The contributions gathered in this volume give an up-to-date survey on the mineralogy, primary ore deposits, prospecting, processing and applications of REE, Ta, and Nd, making this volume a useful handbook for practitioners and students. Finally, the comprehensive coverage of the fundamental aspects, especially as regards REE as tracers of geological phenomena, will prove extremely helpful.
New Discovery of Rare-element Pegmatite Mineralization, Separation Lake Area, Northwestern Ontario
Author: F. W. BreaksPublisher: [Sudbury] : Ontario Geological Survey
ISBN: 9780777854532
Category : Ore deposits
Languages : en
Pages : 9
Book Description