Dating 25 years ago
The trough marks the end of the declining phase and the start of the rising phase of the business cycle.
Economic activity is typically below normal in the early stages of an expansion, and it sometimes remains so well into the expansion.
Radiometric dating--the process of determining the age of rocks from the decay of their radioactive elements--has been in widespread use for over half a century.
There are over forty such techniques, each using a different radioactive element or a different way of measuring them.
The beginning of the Holocene (post last ice age) is now universally accepted to be around 12000 BP.
In determining that a trough occurred in June 2009, the committee did not conclude that economic conditions since that month have been favorable or that the economy has returned to operating at normal capacity. Wiens has a Ph D in Physics, with a minor in Geology.His Ph D thesis was on isotope ratios in meteorites, including surface exposure dating.They see girls like me as sisters, as homegirls, but not as love options, because they don’t find big girls sexy.They usually find us I know there is this myth in Black America that brothers like their sisters thick, thick like a luscious milkshake, that “brings all the boys to the yard,” as it were.