Lead: During its deadly destruction of the Martinique port city of St. Pierre, Mt. Pelée threw up an unusual form of volcanic eruption, the nuée ardente, or glowing cloud.Tag: A Moment in Time with Dan Roberts.

Content: Volcanoes come in different forms. Their shape is determined by a variety of factors: the amount, sequence, and contents of what comes out during an eruption and the nature of the vent and land through which it pushes its volcanic product called magma. The perfectly shaped volcanoes such as Mt. Fuji in Japan are called stratovolcanoes because in most cases, over a long period of time, they generate moderate eruptions of ash and lava which are then deposited in layers or strata. Mt. Pelée, a stratavolcano, towers 4500 feet above the northern end of the Caribbean Island of Martinique.

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