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一、引言贺兰山位于鄂尔多斯地台西缘、阿拉善地块东部,南与祁连山相邻接,地理位置属宁夏回族自治区。本文论述范围包括贺兰山及与其相毗连的棹子山区。山脉呈北略偏东走向,南北长约280公里,东西宽20—40公里。
I. INTRODUCTION Helan Mountain is located in the western margin of Ordos Platform, east of Alxa Block, adjacent to Qilian Mountain in the south and its geographical location is Ningxia Hui Autonomous Region. This article discusses Helan Mountain Range and its adjacent mountain area. The mountains are slightly northerly eastward, with a length of 280 km from north to south and a width of 20-40 km from east to west.