autochthon

1. There is a great difference in the vitrinite reflectance anisotropy between the allochthon and autochthon of the nappe structure in the Huaibei Coalfield, Anhui province, which reflects different states of stresses and strains.
   安徽省淮北煤田推覆构造外来系统与原地系统中的煤镜质组反射率各向异性特征存在明显差异，反映不同的应力应变状态。
2. Geographically, Civilizing influences in Xia, Shang and Zhou descended from West to East with autochthon culture factors ascended.
   从地理上看，夏商周中原文明的浸润由西而东递减，土著文化因素递增；
3. The over thrust nappe consists of four parts: nappe system, front zone, outer front zone and autochthon.
   逆冲推覆构造由推覆体系、前缘带、前缘外带和原地岩体四部分组成的。
4. , The autochthon was O-S structure layer.
   原地系统为O－S构造层。

noun

1. the earliest known inhabitants of a region