STUDY ON THE WEATHERED CRUST OF CONGLOMERATE IN UPPER TRIASSIC YANCHAGN FORMATION OF ZHENJING FIELD
DING Xiao-qi ZHANG Shao-nan
西南石油大学学报(自然科学版) . 2010, (4): 16 -19 .  DOI: 10.3863/j.issn.1674-5086.2010.04.004