Writers : Shiva, Mohammad; Hosseinabadi, Mahdi
Refference : 9th symposium of geological society of Iran, Tehran, Teacher Training university
Publishing Year : 1384
Abstract :
The study area, the kalateh soleiman Alluvial fan sediments, with some £ square kilometer area, is located in the south of birjand cily, east iran which is limited by the 59 28 00_59 29 00
degrees of east longitude and the32 31 00_ 32 32 00 degrees of north latitude. The whole region is a part of Sistan Block which is seprarted by the Hirmand fault from the Afghan block in the eastern side and is also separated by Nehbandanfaultfrom the Lut Block in the western side. The ophiolitic rocks such as,peridotite dolerites , gabbros, dunites, harzburgited spillite ,phyllite;schist from.
The preliminary assessments was carried out and it was found the kalateh- soleiman fans may by worthy of a semi detailed exploration program.16 samples were taken from the depth of a. cm in the main streams and channels of the fan. Samples of the minus 120 mesh fractions were subjected to heavy mineral separation by water - washing. the identification of the magnetic and non - magnetic heavy mineral were conducted using SEM. (Scanning Electron Microscopy.)
The - I mesh fractions of the original samples were also subjected analysis by AAS, Atomic Absorption spectrometry , for the elements Fe , Cu , Cr, Ni and Pb. The results indicate that the range of Fe contents vary from 16000 ppm to 48000ppm. Cu contents ranges from300ppm to 500ppm (c. v. = 19%). the threshold of Cu is 433ppm implying that the north part of the area have some potentials for further investigations. Cr contents varies from100 ppm to 300ppm. The threshold of Cr is 333ppm some potentials in the of the area. Ni contents varies from300ppm to 700ppm. The threshold south west and in the north of Ni is in681 ppm indication some potential in the north of the area. The occurrence of the Placer deposits is exclusively connected with the topography warm and wet climate condition and weathering which in turn leading to the release of resistant minerals.
Subject List :
Alluvial fan sediment 
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