The northern margin the NS-extending ancient continental block of Archean gran- ulite facies in northern Hebei Province is intersected by the WE-stretching Early Proterozoic orogenic belt. Lots of residual oceanic crusts such as serpentinized harzburgites, spinifex picrite, tremolitite, troctolite, rodingite, spilite, retrograded eclogite, pillow basic lava and plagiogranite are found in the continental marginal sedimentary-accreting zone. These crusts and continental marginal sedimentary rocks make up a typical ophiolitic mélange belt. It can be con- cluded that this ophiolitic mélange belt was formed progressively from south to north between Early Proterozoic and the end of Proterozoic.