The role of clay minerals in formation of the regolith-hosted heavy rare earth element deposits

MYH Li, MF Zhou - American Mineralogist, 2020‏ - degruyter.com
Rare earth elements (REEs) have become increasingly important to our modern society due
to their strategical significance and numerous high technological applications. Regolith …

Enrichment and fractionation of rare earth elements (REEs) in ion-adsorption-type REE deposits: Constraints of an iron (hydr) oxide-clay mineral composite

X Liang, P Wu, G Wei, Y Yang, S Ji… - American …, 2025‏ - pubs.geoscienceworld.org
Ion-adsorption-type rare earth element (REE) deposits are the source of more than 90% of
global heavy REEs (HREEs). Thus, understanding the ore genesis of REEs, particularly the …

Kaolinite to smectite transformation: A crystal chemistry study by analytical electron microscopy

E García-Romero, E Manchado, M Suárez - Applied Clay Science, 2025‏ - Elsevier
Kaolinite and smectite coexist in variable proportions along the Tamame de Sayago deposit
in Zamora, Spain, suggesting a close genetic relationship. Kaolinite is formed through the …

Influence mechanism of plant litter mediated reduction of iron and sulfur on migration of potentially toxic elements from mercury-thallium mine waste

J Wen, Y Wu, M Lan, X Li - Environmental Pollution, 2023‏ - Elsevier
The decomposition of plant litter in soil changes soil nutrient content and plays an important
role in regulating soil pH and availability of potentially toxic elements (PTEs). However, there …

Rediscovering the largest kiln site in the middle Yangtze River Valley: insights into Qingbai and grey-greenish ware production at Husi kiln site based on bulk …

Z Li, C Doherty, A Hein - Archaeological and Anthropological Sciences, 2021‏ - Springer
This paper presents new data from the Husi kiln site, Hubei Province, China, where the
unusual size calls into question the primacy of **gdezhen in porcelain production in …

[PDF][PDF] Comparison between Conventional and Metakaolin bi-functional Catalyst in the Hydrodesulfurization Operation

KS AlKhafaji, BY Al-Zaidi, ZM Shakor… - Journal of Petroleum …, 2022‏ - iasj.net
The present study investigates hydrodesulfurization (HDS) of gas oil with 9300 ppm (0.93
wt%) sulfur supplied from Al-Dura Refinery by using an economic catalyst prepared from raw …

Microbial nitrification and acidification of lacustrine sediments deduced from the nature of a sedimentary kaolin deposit in central Japan

T Takagi, KC Shin, M Jige, M Hoshino, K Tsukimura - Scientific Reports, 2021‏ - nature.com
Kaolin deposits in the Seto-Tono district, central Japan, were formed by intense kaolinization
of lacustrine arkose sediments deposited in small and shallow inland lakes in the late …

Preparation and Characterization of Metakaolin-Based Catalysts for Gasoil Hydrodesulfurization Purposes

KS AlKhafaji, ZM Shakor, BY Al-Zaidi… - Arabian Journal for …, 2022‏ - Springer
The present study investigates preparation of alumina metakaolin (AMK) from Iraqi kaolin
clays and supporting of AMK by active metals to manufacture new catalysts applied for …

中新統~ 更新統瀬戸層群の陸成層と陶土

葉田野希, 吉田孝紀, 笹尾英嗣 - 地質学雑誌, 2021‏ - jstage.jst.go.jp
抄録 愛知県名古屋市東方から岐阜県南東部に分布する中新統~ 更新統の瀬戸層群は,
窯業原料となる粘土 (陶土) を産する陸成層として知られ, これまでに粘土鉱物学, 無機化学 …

[PDF][PDF] 愛知県瀬戸地区の窯業原料資源の成因に関する考察 (その 1) その多様性を考える

須藤定久, 宮腰久美子, 高木哲一 - GSJ 地質ニュース= GSJ chishitsu news, 2023‏ - gsj.jp
GSJ地質ニュース Vol.12 No.3 Page 1 72 GSJ 地質ニュース Vol. 12 No. 3(2023 年 3 月) 須藤 定
久 1)・宮腰 久美子 2)・高木 哲一 3) 1.瀬戸地区の窯業原料形成の背景 愛知県瀬戸市周辺(以下 …