He is currently Professor of Geology at McMaster University, and his books include Radiogenic Isotope
Geology (1995, 2005, 2018), Pagan Trinity-Holy Trinity (2008), and A Scientific Commentary on Genesis 1-11 (2015, 2018).
This leaves the final HF fractionation with a less radiogenic isotope
composition reflecting those for the time of mineral formation approximately 2 Ga years ago.
In situ radiogenic isotope
determinations with microscale resolution, especially of Sr, can represent a powerful tool in different fields of geological and life sciences.
Having perfected this method of speleothem chronology with near pinpoint accuracy in previous research over the years in their state-of-the-art Radiogenic Isotope
Laboratory at UNM that Asmerom leads, they were equipped to date the delicate florets that adhered to the top of Naia's body after she fell in the cave.
The relative increase for each radiogenic isotope
is a function of the decay rate of their radioactive parent isotopes [sup.238]U, [sup.235]U, and [sup.235]Th, respectively.
General topics include basic principles of atomic physics, including nuclear systematics decay modes of radionuclides, radioactive decay and geochronometry, radiogenic isotope
geochronometers, including a complete range of methods, the geochemistry of radiogenic isotopes
, including igneous rocks, water, and sediment, and the oceans, short-lived radionuclides, and fractionation of stable isotopes.
Crustal growth and crustal recycling in the Nagssugtoqidian orogen of West Greenland: Constraints from radiogenic isotope
systematics and U-Pb zircon geochronology.
For environmental assessment, in situ radiogenic isotope
determinations with microscale resolution can represent a powerful tool especially for geological and life sciences: S.
One way to determine the time is to find the radiogenic isotope
composition of any crustal sample, and to compare its isotope signature with that of the depleted mantle.
Dickin, Radiogenic Isotope
Geology (Cambridge: Cambridge University Press, 1997).
His research group is responsible for inorganic and radiogenic isotope