Results 101 to 110 of about 32,006 (319)

POTENSI ANCAMAN HILANGNYA KANDUNGAN MINERAL ALAMI (TENORM) DI WILAYAH PENGHASIL TAMBANG KABUPATEN BANGKA TENGAH

JTSL (Jurnal Tanah dan Sumberdaya Lahan)
The community in Central Bangka Regency carried out an increase in illegal mining in 2021, which could potentially threaten the loss of strategic natural resources.
Jhoni Hardiansyah, Isroil Samihardjo, Muhayatun Santoso   +2 more
doaj   +1 more source

Bioleaching of Phosphate Minerals Using Aspergillus niger: Recovery of Copper and Rare Earth Elements

Metals, 2020
Rare earth elements (REE) are essential in high-technology and environmental applications, where their importance and demand have grown enormously over the past decades. Many lanthanide and actinide minerals in nature are phosphates.
Laura Castro, Maria Luisa Blázquez, Felisa González, Jesús Angel Muñoz   +3 more
doaj   +1 more source

U-Pb monazite ages of the Kabanga mafic-ultramafic intrusions and contact aureoles, central Africa: Geochronological and tectonic implications

GSA Bulletin, 2019
Mafic-ultramafic rocks of the Kabanga-Musongati alignment in the East African nickel belt occur as Bushveld-type layered intrusions emplaced in metasedimentary sequences.
Jian-Wei Zi, B. Rasmussen, J. Muhling, W. Maier, I. Fletcher   +4 more
semanticscholar   +1 more source

Ultrahigh‐Temperature Metamorphism and Near‐Isobaric Cooling of Garnet‐Orthopyroxene Granulite Xenoliths in the Sancheong Anorthosite, Yeongnam Massif, Korea

Journal of Metamorphic Geology, Volume 44, Issue 1, Page 20-46, January 2026.
ABSTRACT Elevated heat flow associated with mafic magmatism in accretionary orogens has often been proposed as a driving mechanism for (ultra)high‐temperature (UHT) metamorphism and anatexis. The Sancheong–Hadong complex, located in the southern Yeongnam Massif, Korea, consists of a ca.
Yuyoung Lee, Moonsup Cho, Jeongmin Kim, Youn‐Joong Jeong   +3 more
wiley   +1 more source

Phase stability of lanthanum orthovanadate at high-pressure

, 2016
When monoclinic monazite-type LaVO4 (space group P21/n) is squeezed up to 12 GPa at room temperature, a phase transition to another monoclinic phase has been found.
Agilent, Alexandra Friedrich, Alfonso Muñoz, Catalin Popescu, Chen Y. Z., Daniel Errandonea, Domingo Martínez-García, Ermakova O. N., Javier Ruiz-Fuertes, Julio Pellicer-Porres, Marco Bettinelli, Placida Rodríguez-Hernández, Wolfgang Morgenroth   +12 more
core   +1 more source

Magmatic and hydrothermal behavior of uranium in syntectonic leucogranites: The uranium mineralization associated with the Hercynian Guérande granite (Armorican Massif, France) [PDF]

, 2017
Most of the hydrothermal uranium (U) deposits from the European Hercynian belt (EHB) are spatially associated with Carboniferous peraluminous leucogranites.
Ballouard, C., Boulvais, P., Cathelineau, M., Cuney, M., Deloule, E., Jolivet, M., Kéré, I., Mercadier, J., Poujol, M., Tartèse, R., Venneman, T.   +10 more
core   +3 more sources

Artisanal mining of monazite and cassiterite in the Amazon: Potential risks of rare earth elements for the environment and human health [PDF]

, 2023
Pedro Paulo da Costa Alves Filho, Wendel Valter Silveira Pereira, Yan Nunes Dias, Adriele Laena Ferreira de Moraes, Flávio Henrique Santos Rodrigues, Sílvio Júnio Ramos, Edna Santos de Souza, Anna Maria Fontes Amaral, Antônio Rodrigues Fernandes   +8 more
openalex   +1 more source

Geochemistry and U–Pb Zircon Geochronology of Granite at the Pilok Sn–W Deposit, Thailand: Implications for Late Triassic Tin Metallogenesis

Resource Geology, Volume 76, Issue 1, January‐December 2026.
Zircon U–Pb dating constrains the Pilok Sn–W granite emplacement at 212–208 Ma, during the Late Triassic post‐collisional extension after the Sibumasu‐Indochina collision. This timing coincides with widespread tin‐bearing granite magmatism throughout Southeast Asia, marking a major regional metallogenic event. ABSTRACT The Pilok Sn–W deposit in western
Mallika Intachai, Ryohei Takahashi, Andrea Agangi, Marlina A. Elburg, Punya Charusiri, Pearlyn Manalo, Hinako Sato, Cendi D. P. Dana, Manuel Nopeia   +8 more
wiley   +1 more source

Occurrence and behavior of monazite-(Ce) and xenotime-(Y) in detrital and saprolitic environments related to the Serra Dourada granite, Goiás/Tocantins State, Brazil: Potential for REE deposits [PDF]

, 2015
This is the author's post-print and is released with a Creative Commons Attribution Non-Commercial No Derivatives License.The definitive published version is available from Elsevier via http://dx.doi.org/10.1016/j.gexplo.2015.03.007 © 2015 Elsevier B.V.
Botelho, NF, Santana, IV, Wall, F
core   +1 more source

Lanthanide Sulfate Recovery by Synergistic Dimethyl Ether and Na2SO4 Fractional Crystallization

ChemSusChem, Volume 18, Issue 24, December 13, 2025.
This work demonstrates synergistic lanthanide salt recovery from an aqueous magnet leachate to single ppm concentrations using Na2SO4 combined with dimethyl ether crystallization. This waste valorization process minimizes chemicals consumed and waste generated while maximizing the recovery of a critical material product. Lanthanides (Lns) are important
Chloe Tolbert, Caleb Stetson, Denis Prodius, Christopher Orme, David Appy, Ikenna Nlebedim, Aaron D. Wilson   +6 more
wiley   +1 more source