Preliminary Findings for A New Iron Mineralization in the Central Anatolian Iron Province (Turkiye) and An Approach to the Genesis

investigation that may indicate the presence of a new iron deposit in
the Central Anatolian Iron Province (Turkiye). The geological field
investigation identified massive iron ore outcrops, indicating
significant iron mineralization. According to the analysis results of
the samples taken from the iron ore outcrops, the outcrops contain
35.87-81.75% Fe. Silica ratios are 10.85 - 48.40%. Fe/Mn ratios, SiAl values, Si/Al ratios, Fe/Ti and Al/(Al+Fe+Mn) ratios, Fe-Six2-Mn
ratios, Fe-Al-Mn ratios, (Ca+Al+Mn) - (Ti+V) and (Ti+V) - (Al+Mn)
ratios of the mineralization were evaluated. The positions of the
samples taken on all distinction diagrams indicate that the
mineralization in the study area was formed by hydrothermal activity
(under relatively high-temperature conditions at 300-500 °C). The
fact that the iron ores contain small amounts of transition metals such
as Ni and V suggests that they are not related to volcanic rocks but
are similar to the Lake Superior iron formation type. Ore deposition
probably occurred through transgression-regression at the continental
passive margin or the arc-back basin. Therefore, a model can be
proposed where the iron ores in the study area were deposited by
combining two stages in a continental margin or arc-back basin due
to transgression-regression processes. These two stages are (1)
hydrothermal fluid and fluvial activity (terrestrial dendritic
sedimentation) that precipitates Fe and Si, and (2) oxidation and iron
formation. Therefore, the primary source of the mineralization may
have been volcanosedimentary or exhalative sedimentary type
(synsedimentary), and later metamorphism and tectonic events may
have led to the present position of the mineralization.