A geological investigation of an area to the south-east of Palu in south-eastern Turkey with special reference to the mineralization and economic potentialities.

The field described in this thesis lies within a mineralogical province of South-east Turkey where copper, zinc and chromium deposits are known and is situated approximately 30 km to the south-east of Palu-Elazig. An area of about 150 km2 was geologically mapped and the Upper Cretaceous-Palaeocene Series, which covers almost the whole area, was separated into smaller strati graphical units. The results of detailed structural investigations proved the presence of two different fold systems, two cleavages and two sets of thrusts which were produced by the Laramidian and Alpine Orogenies. Stream sediment samples were collected from the whole area and this reconnaissance work preceded follow-up soil, soil and rock sample surveys ;jhich v;ere carried out over a much smaller area. All these samples were analysed by colorimetric and spectrometric methods and statistical univariate and multivariate techniques were employed in their interpretation with the aid of a computer. The induced polarization mothod was applied over an area of known mineralization and the results for resistivity, percentage frequency effect a.id metal factor were interpreted by contouring them on vertical sections as well as on horizontal planes at four relative depths. As a result the presence of another possible sulphide deposit was discovered to the north of the first orebody. At the place where geophysical methods were applied an adit was reopened and development of pine the primary ere. Trenches were day ever anomalous sites and primary ore was sampled in both trenches and edit. The geological and ore micrcscopical evidence definitely suggests the intimate association of sulphide mineralization with the volcanic rocks. The Kedek Mineralization is a typical example of exhalative sedimentary origin, while the Ropin Mineralization represents precipitation of sulphide minerals from ascending mineralizing fluids along the feeding channels, before reaching the sea bed to form the exhalative deposits.