Diamantane compounds were detected out from saturated hydrocarbon fractions of chloroform bitumen A and C of carbonate source rock samples from three wells (Shancan 1, Shan 42 and Shan 17) in O 1m 5 sections of the central gas field of Ordos basin.

• 在鄂尔多斯盆地中部气田下奥陶统马五段3口井（陕参1井、陕42井和陕17井）20个碳酸盐岩气源岩样品沥青“A”和沥青“C”抽提物饱和烃馏分中均检测出了双金刚烷类化合物。