volcanic pipe是什么意思

用法例句

Yingbishan gold ore deposit is a volcanic hydrothermal deposit hosted in the volcanic breccias chimney whose occurrence is controlled by the nearly-transmeridional fracture F_1 in the ore field.

影壁山金矿是一个产于火山角砾岩筒内的火山热液型金矿床,而角砾岩筒又受区内近东西向的断裂F1的控制。