环带构造

【矿】带状构造，环带构造区域成矿与矿田构造研究&构建成矿构造体系

Study on regional mineralizations and ore-field structures : building of mineralizing tectonic systems

【矿】带状构造，环带构造鞍山地区太古宙铁矿中条带状构造的成因与演化

The origin and evolution of the banded structure in Archaean iron orebody , Anshan area

武汉黄棕壤中铁锰结核的环带构造、元素富集特点与环境变化意义

Characteristics of band structure in iron - manganese nodules from yellow - brown soil in Wuhan

通过对玛瑙的化学成分、矿物成分和显微结构的分析研究，阐述微量化学元素、微量矿物成分及显微结构与玛瑙的颜色和环带构造之间的关系，揭示和探讨玛瑙颜色与纹环带形成的机理。

This paper deals with the chemical compositions , mineral components , and micro-texture of agate , which comprise the colors and circular texture of the agate .

本文归纳总结了花岗岩成矿的几个判别标志：大地构造背景、花岗岩的环带构造、成矿流体可迁移性及自交代作用、矿物学和地球化学特徵。

Some diagnostic criteria for mineralized granites are summarized and reviewed , which include tectonic setting , zonation of granite , mobility of ore fluid , and geochemical and mineralogical indicators .

景宁鹤溪群斜长角闪岩变质新生锆石特征是粒度均匀（约70μm），晶体结晶和透明度极好，色调一致的淡粉红色，呈金刚光泽.未见裂隙、表面熔蚀、环带和核心构造。

Zircons in amphibolite from the Hexi Group in Jingning , Zhejiang Province are newly produced in origin , which are good in crystal form and transparency , and have uniform grain size and light pink color , but have no fracture , surface dissolution and zoning or core structure .