Laterites-bearing REEs,Wadi Natash,Southeastern Desert,Egypt  

作　　者：Mohamed El-Ahmady Ibrahim 

机构地区：[1]Nuclear Materials Authority,P.O.Box,530,EL Maadi,Cairo,Egypt

出　　处：《Journal of Rare Earths》2010年第3期471-476,共6页稀土学报（英文版）

摘　　要：The present paper recorded the occurrence of laterites-bearing REEs in Natash area.Natash laterite deposits occur as horizons(5-15 m in thickness) at the boundary between the Cretaceous sandstones,and Natash flows.Laterite was recorded in more than twenty six occurrence distributed over an area of about 500 km2 along and around Wadi Natash.It ranges in color from light-grey,dark-grey to reddish-brown.The distribution of laterite deposits is structural controlled.Mineralogical results of laterites proved the...The present paper recorded the occurrence of laterites-bearing REEs in Natash area.Natash laterite deposits occur as horizons(5-15 m in thickness) at the boundary between the Cretaceous sandstones,and Natash flows.Laterite was recorded in more than twenty six occurrence distributed over an area of about 500 km2 along and around Wadi Natash.It ranges in color from light-grey,dark-grey to reddish-brown.The distribution of laterite deposits is structural controlled.Mineralogical results of laterites proved the...

关 键 词：Natash flows LATERITES clay minerals REES 

分 类 号：P618.7[天文地球—矿床学]