1. COMPARATIVE STUDY BETWEEN SOME URANIFEROUS VOLCANIC ROCKS, EASTERN DESERT, EGYPT By I. H. Ibrahim and M. E. Ibrahim Nuclear Materials Authority, P.O. Box: 530 El Maadi,…
Acid sulphate alteration hydrothermal environment, King George Island, in a magmatic Barton Peninsula, Antarctica DEBBIE C. ARMSTRONG* British Antarctic Survey, High Cross,…