Fission track annealing characteristics and dating of vermiculite

Autor:	Hari S. Saini, O. P. Sharma, K. D. Bal, K.K. Nagpaul
Rok vydání:	1979
Předmět:	Geochemistry and Petrology Chemistry Annealing (metallurgy) Mineralogy chemistry.chemical_element General Materials Science Activation energy Vermiculite Uranium Fission track dating Track density Mineral resource classification
Zdroj:	Physics and Chemistry of Minerals. 5:133-139
ISSN:	1432-2021 0342-1791
Popis:	Fission track annealing experiments for vermiculite mineral have been performed under optimised etching conditions and a correction curve translating track length reduction to track density reduction has been constructed. The blocking/closing temperature of the fission track system in the mineral has been calculated to be 125°±30° C. The corrected fission track age of vermiculite from Kasipatnam (Visakhapatnam), South India, has been calculated as 544±14 Ma. The activation energy and average uranium concentration of the mineral are 1.7 eV and 9.9×10−8 gg−1 respectively.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f6b049622e20cbefcd7e323b92d989ad https://doi.org/10.1007/bf00307549 Zobrazit plný text záznamu Full text from SpringerLink