As evidence, he suggests an observation that the palaeomagnetic poles from the continental crust assigned to this time conform to a single path between 800 and 600 million years ago and latterly to a near-static position between 750 and 600 million years.
12.
The Chalcolithic settlements of southern Turkmenistan, according to Masson, are dated to the late 5th millennium early 3rd millennium BC as assessed by carbon dating and palaeomagnetic studies of the findings from the excavations carried out by STACE in the Altyndepe and Tekkendepe.
