Bigadic |
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Turkiye / Turkey |
Main commodities:
B
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Super Porphyry Cu and Au
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IOCG Deposits - 70 papers
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All papers now Open Access.
Available as Full Text for direct download or on request. |
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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 decription 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.
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Helvaci C 1995 - Stratigraphy, mineralogy, and genesis of the Bigadic Borate deposits, western Turkey: in Econ. Geol. v90 pp 1237-1260
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