zonal structure meaning in English

层状组织
成区构造
带域结构；多段结构
带状构造
带状组织
分区结构
环带构造

Systematically tested , analyzed and sorted out geochemical data of intrusion - related nickel deposits in china , such as analysis of zonal structure of chrome spinels , micro - probe in situ analysis of single minerals incjude olivine and pyroxene by la - icp - ms , in which some of the research is the first time domestically
其中一些研究，如铬尖晶石环带的研究、橄榄石、辉石等单矿物的原位la ? icp ? ms分析等，在我国还是首次，为研究我国主要铜镍硫化物矿床成岩成矿过程中元素的分异和演化提供了定量结果。