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Bigadic

Turkey

Main commodities: B
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The Bigadic borate deposits are located in north-western Turkey and represent the largest known colemanite and ulexite accumulations in the world.

These deposits were formed in Neogene perennial saline lake sediments located in a NE-SW trending basin and fed by hydrothermal springs associated with local volcanic activity.   The host sequence was deposited on a basement of volcanics and comprises a lower limestone, lower tuff, lower borate zone, upper tuff, upper borate zone and a capping olivine basalt.

The borate zones are interbedded with tuffs, clays and limestones.

Proven borate mineral reserves (1995) were 532 Mt within a total resource of 987 Mt.   High grade ore contains around 30% B2O3.

For more detail consult the reference(s) listed below.

The most recent source geological information used to prepare this summary was dated: 1995.    
This description is a summary from published sources, the chief of which are listed below.
© Copyright Porter GeoConsultancy Pty Ltd.   Unauthorised copying, reproduction, storage or dissemination prohibited.


  References & Additional Information
   Selected References:
Helvaci C  1995 - Stratigraphy, mineralogy, and genesis of the Bigadic Borate deposits, western Turkey: in    Econ. Geol.   v90 pp 1237-1260


Porter GeoConsultancy Pty Ltd (PorterGeo) provides access to this database at no charge.   It is largely based on scientific papers and reports in the public domain, and was current when the sources consulted were published.   While PorterGeo endeavour to ensure the information was accurate at the time of compilation and subsequent updating, PorterGeo takes no responsibility what-so-ever for inaccurate or out of date data, information or interpretations.

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