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一、前言本文涉及范围是新疆库姆塔格沙垄以东至甘肃北山区的西部。相当地理座标为东经93°-96°;北纬41°-42°20′。该区地处天山东段,跨北天山、中天山和北山三个构造单位,经历了多次构造-岩浆变动,尤其是华力西期构造-岩浆-成矿作用占了主导地位,构成一个复杂的铁矿区。近年来,我们承担了该区的一些研究任务,有机会对该区的地层、构造、岩浆岩和
I. Preface This article covers the area west of the Kumtag Gezi Ridge in Xinjiang to Beishan District of Gansu. The geographic coordinates are 93 ° -96 ° east and 41 ° -42 ° 20 ’north. This area is located in the eastern part of Tianshan Mountains and stretches across the northern Tianshan Mountains, Middle Tianshan Mountains and Beishan tectonic units and has undergone many tectono-magmatic changes. In particular, the structure of the Haryrian period-magmatism-mineralization dominates and forms a Complex iron ore district. In recent years, we have undertaken some research tasks in the area and have had the opportunity to analyze the stratigraphy, tectonics, magmatic rocks and