Mineral ages for multi isotope system in phlogopite-bearing pyroxene granulite and felsic gneiss, the Howard Hills, Enderby Land, East Antarctica: Possible Proterozoic tectonothermal events in the Napier Complex [PDF]
, 2006 Large mafic to ultramafic blocks in felsic gneisses on the northern part of the Howard Hills, Napier Complex, East Antarctica are accompanied by phlogopite-bearing pyroxene granulite occurring in the margins of the block.
Christopher J. Carson +4 more
core +1 more source
A review of rare earth minerals flotation: Monazite and xenotime
International Journal of Mining Science and Technology, 2015 This paper reviews rare earth minerals (monazite and xenotime) separation by flotation. A wide range of monazite and xenotime flotation test results are summarized including: reasons of variation i ...
Chehreh Chelgani, S. +4 more
openaire +2 more sources
Zircons from Syros, Cyclades, Greece—Recrystallization and Mobilization of Zircon During High-Pressure Metamorphism [PDF]
, 2017 Zircons were studied from high-pressure/low-temperature metamorphosed meta-igneous lithologies from Syros. These rocks carry several zircon generations related to each other by dissolution-reprecipitation processes. One generation is pristine zircon that
BALLHAUS, CHRIS +4 more
core
Decomposition of Xenotime with Sulfuric Acid
The Journal of the Society of Chemical Industry, Japan, 1962 マライ産ゼノタイムを試料として用い,硫酸によって分解するときの最適条件を求めることを目的とし,微粉砕試料について硫酸量,硫酸濃,処理温度,処理時間などと希土類元素の抽出率との関係について検討した。小規模な実験において,微粉砕試料ではつきのような条件でほとんど完全に分解する。(1)試料:硫酸1:2.0,(2)硫酸濃度95%,(3)処理温度250℃,(4)処理時間30分。ゼノタイム試料についてはX線分析によっても検討した。
openaire +2 more sources
Correlation of Growth and Breakdown of Major and Accessory Minerals in Metapelites from Campolungo, Central Alps [PDF]
, 2017 Regionally metamorphosed pelitic rocks at Campolungo, Central Alps, contain biotite, muscovite, garnet, staurolite, kyanite, and quartz, and the minor minerals tourmaline, plagioclase, chlorite, rutile, and ilmenite. Accessory allanite, apatite, monazite,
Caddick, Mark J. +4 more
core
, 2015 International audienceThe Puy-les-Vignes deposit (Limousin, French Massif Central) represents an uncommon occurrence in the West European Variscan belt of a hydrothermal tungsten mineralization associated with a breccia pipe structure.
Cuney, Michel +3 more
core +1 more source
Application of mineralogical, petrological and geochemical tools for evaluating the palaeohdrogeological evolution of the PADAMOT study sites [PDF]
, 2005 The role of Work Package (WP) 2 of the PADAMOT project – ‘Palaeohydrogeological Data Measurements’ - has been to study late-stage fracture mineral and water samples from groundwater systems in Spain, Sweden, United Kingdom and the Czech Republic, with ...
Bouch, J.E. +18 more
core
Terrestrial Gamma Radiation Exposure in Bangka-Belitung Islands, Indonesia [PDF]
, 2015 Bangka-Belitung is known as tin producer and it geologically contains higher concentrations of natural radionuclides than most other areas. The aim of this study was to evaluate the level of terrestrial gamma radiation in Bangka-Belitung Islands.
Setiawan, A. (A) +1 more
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Pelindian Logam Tanah Jarang Dari Terak Timah Dengan Asam Klorida Setelah Proses Fusi Alkali [PDF]
, 2016 Terak timah yang merupakan limbah peleburan timah memiliki potensi untuk dapat dimanfaaatkan lebih lanjut dengan mengekstrak logam-logam berharga di dalamnya, seperti logam tanah jarang (LTJ). Tujuan penelitian ini adalah untuk menentukan kondisi optimal
Ani, B. Y. (Budi) +3 more
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Journal of Advanced CeramicsXenotime rare-earth (RE) phosphates are emerging as promising materials for environmental barrier coatings (EBCs) for SiC-based ceramic–matrix composites (CMCs) because of their close coefficients of thermal expansion (CTEs) and resistance to calcium ...
Bishnu Pada Majee +3 more
doaj +1 more source