PSCA 52/22, N. Songnan Sag in Qiongdongnan Basin, WD 150m, ops terminated 17 Jan â18, no results, Kantan 3 SS. Target MioceneâOligocene clastics. 
ST 27-5-1d nfw PSCA 52/22, N. Songnan Sag in Qiongdongnan Basin, WD 150m, ops terminated, no results,