Em Eds News Today

>> ha ha. yeah. wow, yours were clean. >> yeah. >> joe? >> youre going to me for the last block, arent yo. >> no, the person who goes first the first time is last the last time. havent you figured that out? >> this story hit home for weeks because im on the cusp and made me realize i should eat more pasta because some criminal nation is good if it gets it out of going on lame rides with your cousins. >> you really hate your does sniens i do. no, im just teasing. theyre adorable. >> all right. co...

An introduction to elemental analysis with ChemiSEM Technology

Potassium (K)-rich feldspars are one of two mineral types typically used for optical dating. Feldspar grains can contain up to ~14 wt% K that gives rise to an internal dose rate component. This internal component can comprise a significant proportion of the total environmental dose rate to which a mineral grain is exposed. The environmental dose rate term—the denominator in the optical age equation—determines the rate at which electronic charge is transferred into the crystal lattice of a mi...