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Direct dating of gold by radiogenic helium shemale dating in briten

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The first results of the U-Th-He dating of native gold from the Pedrolampi (central Karelia) and Witwatersrand (South Africa) deposits are in adequate agreement with available independent geochronological data.

This allows us to consider native gold as a U-Th-He mineral geochronometer for the direct dating of ore-forming processes.

It is a silvery-white metal in the actinide series of the periodic table.

A uranium atom has 92 protons and 92 electrons, of which 6 are valence electrons.

However, a new step-heating technique and recent advances in high-sensitivity mass spectrometry have allowed successful application of the U/Th–He method to age determinations of archaeological artifacts of gold (Eugster et al., 2009).

But the effort pays, for with a feel for deep time comes a sense of its great power: Given enough time, almost anything energetically possible can happeneven at very large scales.

And so it goes with the bending of seemingly rigid rocks, the cutting of majestic canyons, the raising and erasing of entire mountain ranges, the opening and closing of globe-girdling oceans, and the incessant splitting and regrouping of the dancing continents.

If you're unfamiliar with geologic time terminology and abbreviations, take that detour now.

With over 50 million modern human lifetimes elapsed since the planet formed around 4.5 Ga, geologic or deep time is, to say the least, difficult to grasp.