摘要
提出玛瑙主要富集在第四系更新统下部地层中,玛瑙纹带构造形成时环境并不平静,扰动、波动导致旋转、扇形、弧形、三角形、花斑纹、似五角星形纹带构造的形成。
Agate usually concentrates in the lower part of the Pleistocene series in Yichang region. Laminated structures of agate are multifarious, including fan-shaped, camber, triangle, skewbald and pentagram, they were resulted from disturbed forming environment.
出处
《华南地质与矿产》
CAS
1999年第2期72-73,共2页
Geology and Mineral Resources of South China
