The ground high accuracy magnetic survey anomaly in Karaqi area, Xinjiang, and its explanation

Karaqi area lies in the contact part between Southwest Tianshan Mountains and Tarim Basin in Xinjiang and belongs to the edge area of airborne magnetic survey, where no ground geophysical survey has been conducted. Based on high-accuracy ground magnetic survey, the authors divided the area into six regional magnetic anomaly zones and delineated three second-order high magnetic anomalies and 1 local high magnetic anomaly. The regional magnetic anomalies might result from the basic intrusive rock and the basement, the secondary high magnetic anomalies are probably caused by the structure, and the local anomaly results probably from the ore body. The results obtained by the authors provide valuable reference for geological study and prospecting for magnetic mineral resources.