It is proposed that glass hydration is controlled primarily by the amount of intrinsic water contained within the unhydrated obsidian and that rates of hydration may be estimated once the concentration level is known.
When I was young and self-conscious about the size and shape of my head, I picked up on things other people did to try to conceal their own heads.
(““) And tell me I’m not the only one who bought a pair of sneakers, and immediately started seeing more and more of them on everyone’s feet.
The relatively high temperature of the humid tropics accelerates weathering processes, including the hydration of obsidian, where the warm conditions can promote a measurable hydration thickness in less than fifty years.
On the other hand, the aggressive weathering environment is capable of reducing the obsidian surface to make standard measurements untenable.
as a result of radiocarbon dating of associated materials).
Their initial work focused on obsidians from archaeological sites in western North America.different from that of the remainder of the obsidian.The thickness of the layer can be determined by microscopic examination of a thin section of the sample cut at right angles to the surface.Other people — even people who might notice the wrinkles — don’t care about it as much as you do. When you’re so self-conscious, so obsessed with how you’re perceived that it affects how you think and act.The deeper you get in your own head, the more likely people will follow you there.Because of a change of address and a mix-up due to a two-year-old insurance issue, there was a period of time a couple years ago when I was driving around with an expired registration sticker. I started noticing all the other cars on the road with expired inspection or registration stickers.