辽西北票四合屯鸟化石层的精确划分与对比
Accurate division and correlation of bird-bearing horizons at Sihetun, Beipiao, Liaoning
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摘要: 在修建四合屯封闭地质长廊所进行的大规模系统挖掘过程中,对主要含化石层位进行了精确划分与对比。重点对鸟化石层进行了清理,查明了8个珍稀化石层位,即7个含鸟化石层(包括2个鸟与恐龙化石共存层)和1个恐龙化石层。确定了含鸟化石层位与实地挖掘剖面之间的一一对应关系。Abstract: Accurate division and correlation of fossil-bearing horizons were made during large-scale systematic excavation for the construction of an enclosed geological corridor at Sihetun, western Liaoning. Emphasis was put on checking up fossil bird horizons. A t