New Data on the Stratigraphic Position, Mineralogy and Chemistry of Nanos Bauxite Deposits and Adjacent Carbonate Rocks, Slovenia

The bauxite deposits occur along the Lower Kimmeridgian-Upper Kimmeridgian contact in the Nanos area. The main bauxite minerals are boehmite and gibbsite. The Nanos deposits are an example of bauxites deriving from limestone residuum, aeolian material and alluvium. Some Jurassic marly, calcareous ro...

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Bibliographic Details
Published in:Geologia Croatica 2010-12, Vol.46 (2), p.233-241
Main Authors: Stevo Dozet, Miha Mišič, Teodor Žuža
Format: Article
Language:English
Subjects:
Bauxites
Chemistry
Jurassic
Mineralogy
Outer Dinarides
Slovenia
Stratigraphy
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Summary:The bauxite deposits occur along the Lower Kimmeridgian-Upper Kimmeridgian contact in the Nanos area. The main bauxite minerals are boehmite and gibbsite. The Nanos deposits are an example of bauxites deriving from limestone residuum, aeolian material and alluvium. Some Jurassic marly, calcareous rocks proved relatively high in alumina, iron and silica, and are probably a significant source of bauxite material. The Nanos bauxites are compared with late Jurassic bauxites from the western Istria.
ISSN:1330-030X
1333-4875
DOI:10.4154/GC.1993.21