共 2 条
[1]
Incrementa 40Ar/39Ar ages of biotite and hornblende from the northeasternReading Prong:Their bearing on late proterozoic thermaland tectonic histry.Geol.Soc,Amer. Dallmeyer R D,Sutter J F and Baker D J. Bulletin . 1975
[2]
40Ar/39Ar age spectra of some undisturbad terrestrial samples. Dalrymple G B and Lanphere M A. Geochim et Cosmochim. Acta . 1974