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火山爆发是大自然中的奇观之一,火山弹是火山爆发的产物。它是熔浆或熔岩团块被抛到空中后,在急剧运动的过程中旋转冷凝而成。按形态可以分为纺锤状、梨状、椭圆状、饼、面包状、不规则状等。它们在新生代火山岩区常保存较好,如我国黑龙江省五大连池。就有形状各异的多种火山弹。 1985年,我们在安徽来安县长山晚第三纪玄武岩中,发现一个奇特的火山弹,它以独特的球状外形,以及具有淬火边的双重构造为特征,有别于上述各种形态的火山弹。
Volcano eruption is one of wonders of nature, the volcano is the product of a volcanic eruption. It is molten or lava clumps thrown into the air, the rapid movement in the process of condensation from condensation. According to the morphology can be divided into spindle, pear, oval, cake, bread-like, irregular and so on. They are often preserved in the Cenozoic volcanic areas, such as Wudalianchi in Heilongjiang Province. There are many different volcano shells. In 1985, we found a peculiar volcanic bomb in the Late Triassic basalts of Changshan, Laian County, Anhui Province. It is characterized by its unique spherical shape and double structure with quenched sides. Different from the above volcanoes bomb.