Men’s preferred minimum partner age: Let’s start with minimum age preferences reported by heterosexual men.
I found an interesting article that proposes a math equation for suggesting the age of people you should be willing to date.
Different minerals have different closure temperatures; biotite is ~300°C, muscovite is about 400°C and hornblende has a closure temperature of ~550°C.
Thus, a granite containing all three minerals will record three different "ages" of emplacement as it cools down through these closure temperatures.
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When this question comes up in conversation, someone inevitably cites the “half your age plus seven” rule.
This rules states that by dividing your own age by two and then adding seven you can find the age boundary: Take your age, subtract 7, and double it.
The abundance of Ar is unlikely to provide the age of intrusions of granite as the age typically reflects the time when a mineral cooled through its closure temperature.
Like, "This Cuban-Chinese restaurant is half-Latino, just like the late Emilio Estevez." Or, "I just put a dollar’s worth of O-Town songs in the jukebox.
Who knew this bar would have a dollar’s worth of O-Town songs?
I know many smoking-hot middle-aged people who are emotional teenagers.
I know many brilliant, mature people who aren’t old enough to rent a car.