Currently, there is an increasing industrial demand for rare earth elements (REE) as these
elements are now integral to the manufacture of many carbon-neutral technologies. The …

Mediterranean-type bauxite deposits in Sardinia formed during the Upper Cretaceous
(Cenomanian–Turonian) due to the emergence of the south European margin of the Alpine …

Abstract In the Irano–Himalayan karst bauxite belt, in northwestern Iran, karst bauxite
orebodies are widespread. Although several of these orebodies have been characterized …

Research for critical raw materials is of special interest, due to their increasing demand,
opulence of applications and shortage of supply. Bauxites, or bauxite residue after alumina …

This study focuses on the middle–late Permian bauxite deposits found within karstic
depressions and sinkholes of carbonates of the Ruteh and Nessen Formations …

The karst bauxites of the Parnassos-Ghiona Unit (Greece) are hosted within Upper Jurassic
to Late Cretaceous carbonate rocks. Three bauxite horizons are intercalated within shallow …

Four pure hydrogenetic, mixed hydrogenetic-diagenetic and hydrogenetic-hydrothermal Fe-
Mn Crusts from the Canary Islands Seamount Province have been studied by Micro X-Ray …

In the last few years, many efforts have been devoted to the factors controlling the
distribution of CMs in karst bauxites, residual deposits hosted in carbonate rocks. Most of …

Karst bauxite deposits are currently investigated as a new resource for rare earth elements
(REE) in order to avoid present and future supply shortfalls of these critical metals. The …

The pyrophyllite-rich ferruginous (PRF) bauxites in northwestern Iran from the Irano–
Himalayan karst belt are deposited on the paleokarst of the middle Permian carbonate …