GEOLOGY AND GEOCHEMISTRY OF NODULAR-PHOSPHATE AND FAULT-CONTROLLED HYDROTHERMAL-PHOSPHATE MINERALIZATIONS IN ARIKLI AND NUSRATLI VILLAGES (AYVACIK-ÇANAKKALE, NW TURKEY)

Yıl 2017, Cilt: 155 Sayı: 155, 131 - 146, 03.12.2017

Abdulbaki Günaydın

https://doi.org/10.19111/bulletinofmre.314197

Cited By: 2

Öz

Uranium bearing phosphate mineralizations in the tuffs (ignimbrites) of Middle Miocene Arıklı
volcanites in the vicinity of Arıklı and Nusratlı villages, Çanakkale have been known since 1977.
In the study area, two types of phosphate mineralizations are present in different parts. First type
and important one is in the tectonic zones in tuffs and along the contact between tuffs and Çetmi
ophiolite and along the contacts of the units of the Küçükkuyu Formation in the Muharremin Tepe,
Feyzullah Tepe, Örencik Tepe, Gedikharman Tepe in north and northwest of Arıklı village. Second
type is the vein type mineralizations in the tuffs in Çarşılı Tepe, east of Nusratlı village. Both types of
mineralizations are hydrothermal origin. Additionally, walnut-sized syngenetic phosphate nodules
are also observed in the tuffs in Çarşılı Tepe. XRD and geochemical analysis of samples obtained
from mineralizations indicated that the major phosphate bearing mineral is chlorapatite and they
have P2
O5
contents ranging from 4.5 to 32.4%. The economic potential of the mineralization is not
signifi cant due to limited lateral and vertical continuity of the phosphate mineralization. So, in the
study area, economically important phosphate deposit is not expected.

Anahtar Kelimeler

Arıklı volcanites, phosphate, uranium, nodular phosphate, flourapatite

Kaynakça

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