中国东南大陆中生代火山岩带的火山岩相类型

本文根据岩浆作用的表现形式、火山喷发方式、搬运方式、堆积环境、成岩过程以及距火山口远近等因素，将岩浆作用产物的岩相类型分为侵入岩相、侵出岩相、火山岩相等三大类十二种岩相类型．并详细阐述了区内火山岩相类型及其时间分布特征。

THE VOLCANIC FACIES TYPES OF MESOZOIC TERRANE IN SOUTHEAST CHINA CONTINENT

Based on the patterns of magmatism and volcanic eruption as well as transportation,accumulation environment, diagenetic process and distance to volcanic center, the products of magmatism may be classifief into 3 rock types and 12 rock facies. The intrusive rock type may be divided into intrusive (or hypogenic) facies, subvolcanic facies and cruptoexplosive breccia facies. The-extrusive rock type may be divided into volcanic neck facies and extrusive facies.The vohanic rock trpe may be divided into effusive eruptive (or effusive eruptive) facies,explosive airfall facies, pyroclastic flow facies, explosive facies, base surge facies, volcanic mudflow facies and eruptive sedimentary facies. The features and vertical and horizontal variety regulations ot 7 volcanic rock facies are discussed in detail and the relevant facies models are suggested.