<p>Paricutin, Mexico
</p>
This slide taken in 1943 shows a spectacular view of an eruption of Paricutin at night. Glowing projectiles and pyroclastic fragments outline the conical shape of the volcano. The eruption consisted mostly of spheroidal bombs, lapilli, glassy cinder, and glassy ash formed by disintegration of the cinder.
R.E. Wilcox, U.S. Geological Survey
1943
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