Free online dating in Signal Hill for all ages and ethnicities, including seniors, White, Black women and Black men, Asian, Latino, Latina, and everyone else.
In this article we test for the first time the potential of single-grains of K-rich feldspar to date well-bleached and poorly bleached sediments using a post-IR IRSL (p IRIR) protocol.
We measure natural dose distributions using K-rich feldspars from four coastal samples applying the p IRIR protocol with a preheat of 200 °C and a p IRIR stimulation temperature of 180 °C; each sample had an independent age control obtained from quartz OSL and radiocarbon dating.
The analysis of the well-bleached samples shows that only the brightest 30% of the grains give p IRIR single-grain ages in agreement with the age control; this effect may arise from the suggested correlation between blue emission and potassium content of individual grains.
Comparison of single-grain quartz and feldspar dose distributions from the poorly bleached samples shows that quartz is relatively better bleached; nevertheless, selection of a reliable ‘minimum’ feldspar dose was achieved using two different statistical models.► We test the potential of feldspar single-grain to date sediments. ► In our samples p IRIR single-grain dose cannot be known better than ∼16.5%.
There are thousands of active singles on Date looking to chat right now.