Var

VAR (EN: Var; RU: Вар) is the ore region within the Var department, France. Var includes more than ten deposits with the bauxites of the sedimentary type. The main deposits are Peygros and Mazaugues.

Var has been discovered during the 1879. The depositions with bauxites are widely distributed on the territory between the Central, Maure, and Esterelle massifs, they are underlain by the limestones and dolomites of the Middle and Upper Jurassic, and of the Lower Cretaceous. The bauxite-bearing stratum of the Albian age is crumpled into the folds, and is broken by the series of the disjunctive dislocations (of the dip-slip faults). The most large depositions have preserved themselves within the synclines. The shape of the ore bodies is tabular, the thickness is 6-12 metres, the width is 400-1000 metres, the length is 1500-3000 metres, the depth of the embedment is 50-200 metres. There prevail the ferruginous varieties of the bauxites, with the red colour, with the clastic, pisolitic, and oolitic structure, and with the layered texture. The major minerals are: boehmite, kaolinite, and hematite. The reserves of the bauxites are 13 million tonnes (1978). The ores contain 55-60% of Al2O3, 3-6% of SiO2, 23-25% of Fe2O3, 2.2-2.5% of TiO2. The deposits are being developed with the help of the five underground mines of the "Aluminium Pechiney" French company. The extraction is 594 thousand tonnes (1978).