Some geological characteristics in a regolith-limey shale rock profile through natural radionuclides distribution
作者: Ademar de O. FerreiraRodrigo O. BastosCarlos R. Appoloni
作者单位: 1Laboratório de Física Nuclear Aplicada, Departamento de Física, CCE Universidade Estadual de Londrina, Campus Universitário, Rodovia Celso Garcia Cid s/n, Cx. Postal 6001, 86051-990 Londrina, PR, Brazil
刊名: Applied Radiation and Isotopes, 2010, Vol.68 (9), pp.1774-1779
来源数据库: Elsevier Journal
DOI: 10.1016/j.apradiso.2010.03.005
关键词: Gamma rayRocksSoilsGeological characteristicsEnvironmental radiation
原始语种摘要: Abstract(#br)The objective of this work is to study some geological characteristics in a regolith-rock profile by analyzing the distribution of natural radionuclides along the profile by high resolution gamma ray spectrometry. The concentrations of radionuclides reflect some mineralogical characteristics of the rock matrix and also more recent events, such as weathering and erosion. The samples were collected in an abandoned limestone mine, in the city of Sapopema, Paraná State, Brazil. The stratigraphy is represented by an alternation of decimetric limestone layers, bituminous shale and some rhythmite layers. The ratios eTh/K obtained for all samples of the studied profile have equivalent values, indicating similar mineralogical characteristics of their detritic components. The ratio...
全文获取路径: Elsevier  (合作)
影响因子:1.179 (2012)