On the evaluation of glauconite and illite for dating sedimentary rocks by the potassium-argon method

Autor: R. Kistler, J. Obradovich, G.H. Curtis, J.F. Evernden
Rok vydání: 1961
Předmět:
Zdroj: Geochimica et Cosmochimica Acta. 23:78-99
ISSN: 0016-7037
DOI: 10.1016/0016-7037(61)90089-8
Popis: Potassium-argon dates of stratigraphically known biotite-bearing tuffs, lava flows and intrusions when used as controls show that illite and glauconite samples selected carefully with regard to geologic history and prepared properly are suitable for obtaining dates almost as accurate as those from igneous biotite. A tentative time-scale is constructed for the Tertiary epochs.
Databáze: OpenAIRE