aluminous
21Bélmez Faces — The Bélmez Faces or the Faces of Bélmez is considered by some parapsychologists the best documented and without doubt the most important paranormal phenomenon [in the 20th] century . [ [http://www.discoverychannel.com.au/paranormal/most… …
22Leucogranite — In geology, leucogranites are amongst the youngest intrusions related to anatexis of continental crust anywhere in the world. Leucogranites are commonly found in deformed metapelitic/metagraywacke sequences that have been thrusted over basements… …
23Kaolin Deposits of Charentes Basin, France — The geological unit called Charentes basin is composed of Eocene and Oligocene deposits, laid above karstic limestone formations of the Campagnien, in the North of the Aquitaine Basin. The kaolin clays of Charentes belong to this mainly… …
24Dodecacalcium hepta-aluminate — (12CaO.7Al2O3) occurs rarely in nature as the mineral mayenite. It is an important mineral phase in Calcium aluminate cements and is an intermediate in the manufacture of Portland cement. Its composition and properties have been the subject of… …
25Case hardening of rocks — Case hardening is a weathering phenomenon of rock surface induratoin. It is observed commonly in: felsic alkaline rocks, such as nepheline syenite, phonolite and trachyte; pyroclastic rocks, as pyroclastic flow deposit, fine air fall deposits and …
26Laterite — Latérite Un chemin de terre dans la province de Misiones dans le nord de l Argentine …
27Latérisation — Latérite Un chemin de terre dans la province de Misiones dans le nord de l Argentine …
28Latérite — Un chemin de terre dans la province de Misiones dans le nord de l Argentine …
29Latéritique — Latérite Un chemin de terre dans la province de Misiones dans le nord de l Argentine …
30duricrust — /door i krust , dyoor /, n. a hard crust that forms on or in soil in semiarid climates owing to cementation of soil particles. Cf. caliche, hardpan (defs. 1, 2). [ < L dur(us) hard + I + CRUST] * * * ▪ geology Introduction surface or near… …
