In this paper, 40 Ar- 39 Ar data has been obtained on garnet and omphosite from eclogite samples using laser probe. Two 40 Ar- 39 Ar isochron ages have been determined this way.

• 采用激光探针 40 Ar- 39Ar法对大别山碧溪岭榴辉岩样品中的石榴石和绿辉石单颗粒矿物进行原位测定 ,获得了两条等时线年龄。