Fig. 9.

Core segments from the drilling project at the El'gygytgyn impact crater, showing suevitic impact breccia, from (a) about 316 and (b) 319 m below the lake floor, just below the transition from the postimpact lake sediments. The glassy melt rock, which forms during the impact when some of the rock is heated to over 2000 °C, is the dark gray frothy inclusion in the center of the core segment. The cores were photographed by CK in the camp shortly after retrieval.