The origin of clay minerals is an important topic in applied clay science because the
properties of any clay, and particularly those of kaolin, smectite, palygorskite and sepiolite …

Raman spectroscopy of fine-grained hydrothermal alteration minerals, and phyllosilicates in
particular, presents certain challenges. However, given the increasingly widespread …

Diagnostic absorption features in hyperspectral data can be used to identify a specific
mineral or mineral associations. However, it is unknown how accurate hyperspectral …

Accurate determination of clay minerals can be challenging due to the natural occurrence of
interlayered phases, ie, layers of different clay species such as illite and smectite. The …

Abstract The Hagendorf–Pleystein Pegmatite Province, SE Germany, is known for the
largest feldspar–quartz pegmatite in Central Europe and renowned for its rare elements, eg …

Abstract The Avalon Zone hosts well-preserved examples of high-and low-sulfidation
epithermal Au-Ag mineralization and associated phyllosilicate alteration. Using examples …

The region of Angarf, located in the southern part of the Zenaga inlier (Central Anti-Atlas,
Morocco), is known by the abundance of pegmatite veins, essentially constituted by quartz …

The outward appearance of argillic alteration zones, forming a transition between the ore
zone and the barren subvolcanic, volcanic and volcaniclastic host rocks may be rather dull …

The porphyry Peschanka copper-molybdenum-gold deposit and the Nakhodka ore field
located in the Baimka ore trend on the western Chukchi Peninsula are spatially related to …

The combination of structural, geochemical and palaeotopographic data proves to be an
efficient tool to understand fluid transfers in the crust. This study discriminates shallow and …