Lasers light the way to discovery of ancient crust beneath Western Australia - Phys.org

By firing lasers finer than a human hair at tiny grains of a mineral extracted from beach sand, Curtin researchers have found evidence of an almost four billion-year-old piece of the Earth's crust that lies beneath the South-West of WA.

By firing lasers finer than a human hair at tiny grains of a mineral extracted from beach sand, Curtin researchers have found evidence of an almost four billion-year-old piece of the Earth's crust th… [+2867 chars]

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