The tools found were made from obsidian, a type of volcanic glass characterized by a large
The material was mined in a quarry in CentralOregon, however, the place where the remains of the guns were found was 4 thousand km away from the quarry. This is the oldest evidence of western obsidian in the continental United States. Typically, ancient people used obsidian to create sharp tools.
During the work, the authors studied the flooded 8-10Thousands of years ago, areas of the relief that were previously inhabited by plants, animals and people, and now are at the bottom of Lake Huron, one of the Great Lakes of the United States and Canada. At a depth of 32 m, between two hunting buildings, archaeologists discovered two obsidian flakes.
This find is really interesting because it shows how important underwater archeology is. The preservation of ancient underwater monuments has no analogues on land.
Ashley Lemke, assistant professor of sociology and anthropology at the University of Arlington
The find in Lake Huron is part of a majorresearch aimed at understanding the social and economic organization of caribou hunters at the end of the last ice age. The water level was then much lower. Scientists have discovered, for example, stone walls of dwellings, which are now at a depth of 30 meters under water.
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