负异常带 meaning in Chinese

negative belt

There is a north - north - east negative anomaly belt of aerial magnetism in the middle - east part of the basin , which could be displayed by the aerial magnetism of commutative field , upwardly continuation , lvt in earthquakes , the experimentation of granite liquation ( demagnetization ) , the distribution of neozoic era volcanic rock , earthquake , hot spring and ground feature . the anomaly shows the blocking in east - west direction , and it is also associated with intense activity of deep heat interaction and the development of the crust - mantle mixed layer in the north qiangtang
从区域航磁、向上延拓、地震低速层、花岗岩熔融(退磁)实验、新生代火山岩的分布、地震、温泉、地貌等发现，盆地中东部存在一北北东向航磁负异常带，既显示出东西分块，也与北羌塘深部热力作用强烈活动、发育“壳幔混合层”有联系。