Economic geology is a mixtum compositum of all geoscientific disciplines focused on one
goal, finding new mineral depsosits and enhancing their exploitation. The keystones of this …

The kaolinite-group minerals kaolinite, dickite, nacrite, halloysite including its metaform and
their associates allophane and imogolite are phyllosilicates characterized by a rather simple …

Aluminium phosphates and sulphates of the alunite supergroup (APS minerals) occur in a
wide range of environments of formation covering the metamorphic, igneous and …

The study of active and fossil hydrothermal systems shows clay minerals to be a
fundamental tool for the identification and characterization of hydrothermal alteration facies …

Abstract The Central European Variscides and their epicontinental basins and grabens
(Mesoeurope sensu Stille) subsided into the uplifted basement as well as the Alpidic …

Geological, mineralogical and geochemical studies were carried out on Mayouom kaolin
deposit located within a mylonitic shear zone about 30 km north of Foumban town (western …

Two geoscientific disciplines (mineralogy, geomorphology) which are placed far apart from
each other are selected to forge a genetic tie line between carbonatite-and agpaitic …

Abstract The Baia Sprie epithermal system, a well-known deposit for its impressive
mineralogical associations, shows the proper conditions for acid mine drainage and can be …

The Biga Peninsula of NW Turkey is host to many kaolin and halloysite deposits with
mineralization occurring at the intersections of fault zones in contact with Late Eocene …

In the Santa Cruz and Chubut provinces, Patagonia, Argentina, kaolin deposits were formed
by “in situ” alteration of volcaniclastic rocks, such as the Bajo Grande, Chon Aike or Marifil …