The Late Archean Fuping Group of the Xiaojiao area in Pingshan Couty,Hebei Province consists mainly of three metamorphic rock types of supracrustal affinity,i.e
Based on the geological and geochemical information about migmatites,the following lines of evidence have been proposed for discriminating the anatectic leucoso
Ore textures and electron microprobe analyses show that in addition to highly scattered blebs in sphalerite grains,intergrown chalcopyrite also occurs as rods,m
The Holocene lacustrine diatomaceous earth of Fayium,South West of Cairo,has been studied to define its minerals,chemistry,petrography and physical properties.M
The platinum group elements(PGE)in the mafic-ultramafic suite in the Xinjie layered intrusion and associated basalts and syenites were analyzed using neutron ac
Oxygen isotope studies of the Suzhou granite have been made based on drill-hole samples.In the inner part,the δ^18 O values are less variable either in the who