Writers : Anbarestani, Soghra; Rahmani,Farah;Nobari,Rasol
Refference : The first international applied geological congress; Department of geology Islamic azad university- Mashhad
Publishing Year : 2010

Abstract :

Anbarestan region, at 38 Km from Sabzevar city on old Sabzevar- Neyshabur route, is located on Mesozoic ophiolite zone at margin of mini continent on east of Central Iran and forms part of the
Sabzevar ophiolite belt. Rock environment consists of ophiolite (Basic and ultra Basic) peridotites, Serpantinite, Donite, Pyroksinite rocks, Globotruncana lime of lower lava in down part of Tuff and locally radiolarite. These have been observed in field surveys of some units like serpentinite, brick, tuff and diabase dyke. Alterations identified in field scale include serpentinite, argillite, silicification alterations. 23 soil samples for geochemistry analysis and determining their main, minor and rare components with ICP-OES apparatus were sent to organization of geology and mining exploration. Geochemistry studies showed that based on mineral indices of chrome and manganese in whole regions soil, it is contaminated with chrome, magnesium and nickel. In some stations there also exist barium, cobalt and arsenic contaminations. Considering the concentrations of chromium, manganese, nickel and cobalt elements are high and that of phosphate, nitrogen and potassium are very low in ultramafic regions. We tried to specify toxic elements and minerals in soil and water, because entrance of these elements to water resources and plants which grow in soil of this region will be transmitted to human and livestock food cycle and would cause long-term health and sanitation problems for residences of these areas . Generally, the purpose of this study is to investigate the rate and distribution of heavy metals and poisonous elements and to determine the amount of emission in the subject area where its major part is ultramafic.

Subject List : medical geology