1958年夏,作者等参加中南矿冶学院地质系所组织的湘西普查队。历经沅陵、桃源、临澧、石门、慈利、大庸等县。其范围约在北纬28°11′——29°45′,东经110°2′——111°27′之间,恰位于沅水之北,武陵山脉所盘踞的山地。此次工作,时间短促,对地质方面未进行细致研究,兹就湘西普查队集体所获资料和作者等管见所及,综合整理如下: In the summer of 1958, the author participated in the Western Hunan Census Team organized by the Department of Geology, Central South University of Mining and Metallurgy. After Yuanling, Taoyuan, Lintao, Shimen, Cili, Dayong and other counties. The range is about 28 ° 11 ’- 29 ° 45’ north latitude and 110 ° 2 ’- 111 ° 27’ east longitude, just north of the Yanshui and the mountain range of the Wuling Mountains. This work, a short time, no detailed study of the geological aspects, the collective information obtained by the Western census team and the authors, and so on, integrated into the following: