Results 101 to 110 of about 19,368 (228)

Spectrophotometric determination of erbium using kojic acid dye in different rare earth concentrates

Egyptian Journal of Petroleum, 2018
A sensitive and selective spectrophotometric method was studied for the determination of erbium (Er) with kojic acid dye (koj) and cetylpyridinium chloride (CPC) as a cationic surfactant from Egyptian monazite and xenotime concentrates using third ...
A.A. Abdou, S.A. Abo-El-Enein, H.K. Fouad, N.A. Fattah, E.M. El Desouky   +4 more
doaj   +1 more source

Monazite LA-ICP-MS U-Pb Dating to Constrain the Metamorphic Age of the Muzidian Gneiss Complex in the Northern Dabie Orogen

Yankuang ceshi
The Muzidian gneiss complex (MGC) in the Northern Dabie Orogen is the oldest exposed rock formation in the South China block. However, there is still a lack of research on its metamorphic age and tectonic implications.
Xiaofei QIU, Shansong LU, Juanjuan TAN, Xirun TONG, Nianwen WU, Xiaoli YANG, Xin SHAO, Fei LIU, Xiaoli YANG   +8 more
doaj   +1 more source

Stability and isotopic dating of monazite and allanite in partially molten rocks: examples from the Central Alps [PDF]

, 2018
We investigated the stability of monazite and allanite as a function of bulk rock composition within several types of Tertiary Alpine anatexites, characterized by different compositions and melting reactions, but similar P-T conditions of melting.
Berger, Alfons, Rosenberg, Claudio, Schaltegger, Urs   +2 more
core  

Mineral chemistry of monazite-(Nd), xenotime-(Y), apatite, fluorite and zircon hosting in lamprophyre dyke in Abu Rusheid area, South Eastern Desert, Egypt

Geologija, 2012
The studied mineralized lamprophyre dyke in Abu Rusheid area is trending NNW-SSE, and occurs withinAbu Rusheid mineralized shear zone, measuring 0.2 - 1.0 m in width and 0.5 - 1.0 km in length. It was emplacedparallel with the Abu Rusheid shear zone. The
Mohamed A. Ali
doaj  

Characterization of Heavy Minerals and Their Possible Sources in Quaternary Alluvial and Beach Sediments by an Integration of Microanalytical Data and Spectroscopy (FTIR, Raman and UV-Vis)

Quaternary
Quaternary stream sediments and beach black sand in north-western Saudi Arabia (namely Wadi Thalbah, Wadi Haramil and Wadi Al Miyah) are characterized by the enrichment of heavy minerals.
Adel A. Surour, Amira M. El-Tohamy
doaj   +1 more source

Om några svenska monaziter [PDF]

Geologiska Föreningen i Stockholm Förhandlingar, 1889
(1889). Om nagra svenska monaziter. Geologiska Foreningen i Stockholm Forhandlingar: Vol. 11, No. 6, pp. 379-388.
openaire   +1 more source

Characteristic of Rare Earth Element in Sediment at Coastal and Offshore Area of Kundur Island, Riau Province [PDF]

, 2013
The study area is located at coastal and offshore Kundur and Adjacent Area, geographically located at coordinates of 0º 39'00 "0º 50'00" N and 103º 10'00 "103º 25 '00" S.
Lugra, I. W. (I), Setiady, D. (Deny)
core  

Electron microprobe technique for U-Th-Pb and REE chemistry of monazite, and its implications for pre-, peak- and post- metamorphic events of the Lutzow-Holm Complex and the Napier Complex, East Antarctica [PDF]

, 2006
Monazites in high-grade metapelites from the Lutzow-Holm Complex and Napier Complex have been examined in terms of U, Th, Pb and rare earth element (REE) chemistry using an electron microprobe.
Tomokazu Hokada, Yoichi Motoyoshi
core   +1 more source

Characteristics of Treated Monazite in Different Particle Sizes to Upgrade the Rare Earth Elements Content by Using Mechanochemical and Roasting Processes

International Journal of Technology
Rare earth metals (REE) constitute one of the most crucial groups of elements globally. In Indonesia, deposits of REE have been recognized within monazite minerals extracted from tin mining operations in Bangka.
Matthew Alexander Tjhia, Muhammad Nur Fakhriy Yahya, Reza Miftahul Ulum   +2 more
doaj   +1 more source

Accretionary origin for the late Archean Ashuanipi Complex of Canada [PDF]

The Ashuanipi complex is one of the largest massif granulite terrains of the Canadian Shield. It makes up the eastern end of the 2000 km long, lower-grade, east-west belts of the Archean Superior Province, permitting lithological, age and tectonic ...
Percival, J. A.
core   +1 more source