Results 11 to 20 of about 19,529 (228)

Surface Mechanism of Fe3+ Ions on the Improvement of Fine Monazite Flotation With Octyl Hydroxamate as the Collector

Frontiers in Chemistry, 2021
Froth flotation of fine minerals has always been an important research direction in terms of theory and practice. In this paper, the effect and mechanism of Fe3+ on improving surface hydrophobicity and flotation of fine monazite using sodium octyl ...
Qingzhu Zheng, Yunlou Qian, Yunlou Qian, Dan Zou, Zhen Wang, Zhen Wang, Yang Bai, Haidong Dai   +7 more
doaj   +1 more source

The chemical composition and age of monazite and kularite from titanium ore of Pizhemskoye and Yarega deposits (Middle and Southern Timan)

Georesursy, 2020
A study on the typomorphic characteristics and age of the monazite the two giant titanium deposits of the Timan – Pizhemskoye and Yarega, which revealed differences in morphology in the species composition of the inclusions, the grain size, distribution ...
Alexander B. Makeyev, Sergey E. Borisovsky, Anna O. Krasotkina   +2 more
doaj   +1 more source

The behaviour of Monazite-(La) at high pressure: a first principles study [PDF]

MATEC Web of Conferences, 2023
Monazite-(La) has received significant attention due to its interesting physical and chemical properties, such as its high fusion temperature and low solubility.
Motsomone Lebogang, Diale Ramogohlo, Ngoepe Phuti, Bissett Hertzog, Chauke Hasani   +4 more
doaj   +1 more source

Analytical Conditions for U-Th-Pb Dating of Monazite by LA-ICP-MS

Yankuang ceshi, 2021
BACKGROUND Compared with zircon U-Pb dating, monazite has more advantages in the dating of some metamorphic rocks or highly differentiated rocks.
ZHANG Ya, LI Quan-zhong, YAN Jun, XIE Jian-cheng, YANG Qing-liang, GAO Ling   +5 more
doaj   +1 more source

Garnet–monazite rare earth element relationships in sub-solidus metapelites: a case study from Bhutan [PDF]

, 2018
A key aim of modern metamorphic geochronology is to constrain precise and accurate rates and timescales of tectonic processes. One promising approach in amphibolite and granulite-facies rocks links the geochronological information recorded in zoned ...
Argles, Tom W., Greenwood, Lucy V., Harris, Nigel B. W., Parrish, Randall R., Roberts, Nick M. W., Warren, Clare J.   +5 more
core   +9 more sources

Geochemistry of Monazite within Carbonatite Related REE Deposits

Resources, 2017
Approximately >50% of global rare earth element (REE) resources are hosted by carbonatite related deposits, of which monazite is one of the most important REE minerals. Monazite dominates more than 30 carbonatite-related REE deposits around the world,
Wei Chen, Huang Honghui, Tian Bai, Shaoyong Jiang   +3 more
doaj   +1 more source

Timing of diagenesis and very low-grade metamorphism in the eastern sector of the Sierra de Cameros (Iberian Range, Spain): a U–Pb SHRIMP study on monazite [PDF]

, 2009
The Sierra de Cameros is an intracontinental orogen and represents the north-western part of the Iberian Range in Northern Spain. It comprises a thick sequence of syn-rift continental sediments (mainly sandstones and carbonates) deposited during ...
Aleinikoff, Bollinger, Cabella, Casas-Sainz, Casquet, Cherniak, Del Río, Evans, Evans, Frantz, Förster, Gabudianu Radulescu, Gil-Imaz, Goldberg, Janots, Janots, Kempe, Krenn, Lanzirotti, Lev, Mantilla-Figueroa, Mas, Masuda, Mata, Mata, Mata, Milodowski, Montel, Pan, Pan, Parrish, Rasmussen, Rasmussen, Rasmussen, Rubatto, Sawka, Smith, Spear, Tera, Tischer, Wilby, Williams, Wing   +42 more
core   +2 more sources

Micro-crystalline inclusions analysis by PIXE and RBS [PDF]

, 2008
A characteristic feature of the nuclear microprobe using a 3 MeV proton beam is the long range of particles (around 70 \mu m in light matrices). The PIXE method, with EDS analysis and using the multilayer approach for treating the X-ray spectrum allows ...
Bruhn, C. Ramboz, D. Grambole, D. Strivay, Demortier, Hermann, Horn, J.-P. Gallien, K. Kouzmanov, Khodja, Kurosawa, Kurosawa, Maxwell, Maxwell, Menez, Ryan, Ryan, Ryan, Räisänen, T. Sauvage, Zaw   +20 more
core   +5 more sources

Metabolomic Analysis Reveals Contributions of Citric and Citramalic Acids to Rare Earth Bioleaching by a Paecilomyces Fungus. [PDF]

, 2019
Conventional methods for extracting rare earth elements from monazite ore require high energy inputs and produce environmentally damaging waste streams. Bioleaching offers a potentially more environmentally friendly alternative extraction process.
Alvarez-Cohen, Lisa, Brisson, Vanessa L, Zhuang, Wei-Qin   +2 more
core   +1 more source

A comparison between in situ monazite Lu–Hf and U–Pb geochronology [PDF]

Geochronology
In complex metamorphic rocks, monazite U–Pb dates can span a wide concordant range, leading to ambiguous geological interpretations (e.g. slow protracted cooling versus multiphase growth).
A. T. De Vries Van Leeuwen, A. T. De Vries Van Leeuwen, A. T. De Vries Van Leeuwen, S. Glorie, S. Glorie, M. Hand, M. Hand, J. Mulder, S. E. Gilbert   +8 more
doaj   +1 more source