野外填图 meaning in English

field mapping

Tonghuashan - yushugou area is one of the typical western mountainous district of high and cold , with the bareness of the surface and bad environment . it is difficult to do the field geological mapping there
南天山东段铜花山?榆树沟地区地处我国西部高寒山区，地表裸露，环境恶劣，野外填图难度较大，但地质信息在遥感图像上反映充分。
Sedimentological and provenance data from tuchengzi formation in nuyingzi - goujiadian basin provide information about the links between erosional unroofing of adjacent thrust sheets and deposition within the basin . through field mapping , measured sections , and sedimentological analysis , we arrived at the following conclusions : 1
通过野外填图、实测地层剖面及室内分析工作，取得了如下主要成果和认识： 1 、土城子组主要由一套分选性和磨圆度都很差的碳酸盐质砾岩构成。