Hydrothermal alteration of pyrochlore group minerals from the Miaoya carbonatite complex, central China and its implications for Nb mineralization

B Wu, YQ Hu, C Bonnetti, C Xu, RC Wang… - Ore Geology …, 2021 - Elsevier
Carbonatite represents a major host rock for niobium (Nb) resources worldwide. Both
magmatic and post-magmatic metasomatic processes are crucial for Nb mineralization in …

[HTML][HTML] Mesozoic magmatic and hydrothermal uranium mineralization in the Huayangchuan carbonatite-hosted U-Nb-polymetallic deposit, North Qinling Orogen …

H Huang, KX Wang, M Cuney, JY Pan, C Bonnetti… - Ore Geology …, 2022 - Elsevier
The giant Huayangchuan deposit in the Qinling Orogen is a newly discovered U-Nb-
polymetallic deposit mainly hosted in Triassic carbonatite. Petrographic, elemental, and …

Staged formation of the supergiant Olympic Dam uranium deposit, Australia

K Ehrig, VS Kamenetsky, J McPhie… - …, 2021 - pubs.geoscienceworld.org
The origins of many supergiant ore deposits remain unresolved because the factors
responsible for such extreme metal enrichments are not understood. One factor of critical …

Release of uranium from uraninite in granites through alteration: Implications for the source of granite-related uranium ores

L Zhang, Z Chen, F Wang, NC White… - Economic …, 2021 - pubs.geoscienceworld.org
Uraninite is the main contributor to the bulk-rock uranium concentration in many U-rich
granites and is the most important uranium source for granite-related uranium deposits …

[PDF][PDF] 东昆仑造山带海德乌拉铀矿床沥青铀矿年代学特征及成因

朱坤贺, 戴佳文, 王凯兴, 刘晓东, 余驰达, 雷勇亮… - 地球科学, 2022 - earth-science.net
海德乌拉铀矿床位于东昆仑造山带东段, 是西北地区最近发现的与火山岩有关的独立铀矿床,
对其研究有助于揭示青藏高原热液铀成矿机制. 利用扫描电镜, 电子探针和激光原位分析等对 …

Oxidation state and coordination environment of Pb in U-bearing minerals

DD Syverson, B Etschmann, W Liu, R Ram… - … et cosmochimica acta, 2019 - Elsevier
This study examines the oxidation and coordination of lead (Pb) in the uranium (U) minerals
uraninite (UO 2), coffinite (USiO 4), and brannerite (UTi 2 O 6), and minerals that have U as …

Dual imaging of uranium ore by laser ablation inductively coupled plasma mass spectrometry and laser induced breakdown spectroscopy

M Holá, K Novotný, J Dobeš, I Krempl, V Wertich… - … Acta Part B: Atomic …, 2021 - Elsevier
The great potential in combining two elemental imaging techniques-Laser Induced
Breakdown Spectroscopy (LIBS) and Laser Ablation Inductively Coupled Plasma Mass …

Combined U-Pb isotopic signatures of U mill tailings from France and Gabon: a new potential tracer to assess their fingerprint on the environment

A Beaumais, A Mangeret, D Suhard, P Blanchart… - Journal of Hazardous …, 2022 - Elsevier
Uranium milling activities have produced high volumes of long-lived radioactive processed
wastes stored worldwide in near surface environment. The aim of this study is to highlight …

Geochemical characteristics, hazards impact assessment and radiogenic heat production of the alkaline rocks

E Sidique, MA Elhaddad, M Sami, IV Sanislav… - Scientific Reports, 2024 - nature.com
This study primarily investigates the natural radioactivity level in alkaline rocks collected
from the Wadi El-Dib ring complex (WDRC) in North Eastern Desert of Egypt, and assesses …

Trace element signatures of uraninite controlled by fluid-rock interactions: A case study from the Eastern Moldanubicum (Bohemian Massif)

V Wertich, M Kubeš, J Leichmann, M Holá… - Journal of Geochemical …, 2022 - Elsevier
The eastern part of the Moldanubian Zone (Bohemian Massif, Czech Republic) hosts the
Western Moravian uranium (U) province where U exploitation was active from 1957 to 2017 …