volcanics造句

The volcanics in TRF are obviously different from shield-forming basaltic volcanics of the Tianchi volcano in characters of volcanic geology, petrology and volcanic chronology.

The volcanics in the Beishan area, consisting mainly of lava and tuff, are well developed and linearly distributed.

There exists an extended set of early Triassic intermediate-acid volcanics closely related to microdot gold ore in Southwestern Guangxi.

Wumuchang Area is a local bituminous coal district metamorphized by sub-volcanics in Yiming Coal Field which is located in northeast China.

Many kinds of volcanics in the Wangjiatun-Shengping region in the north Songliao basin are buried deeply, and lacking of core data, so it is difficult to analyze the volcanic lithofacies.

Abstr: The Hongqin Formation of red bed in the ~Funxi Basin is overiain by a series of volcanics widely, which are mainly of intermediate-acid volcanoclastic rock and volcanic lava.