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Obsidian moisture makes use of the price of rind growth on volcanic cup to find out times; after a brand new break, a rind since the brand new break grows at a rate that is constant.

Obsidian moisture makes use of the price of rind growth on volcanic cup to find out times; after a brand new break, a rind since the brand new break grows at a rate that is constant.

Dating limits are real people; it will take a few hundreds of years for a detectable rind to be produced, and rinds over 50 microns tend to crumble. The Obsidian Hydration Laboratory during the University of Auckland, brand new Zealand describes the strategy in certain detail.