کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4725379 1639873 2007 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Implications of broad dose distributions obtained with the single-aliquot regenerative-dose method on quartz fine-grains from loess
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات ژئوشیمی و پترولوژی
پیش نمایش صفحه اول مقاله
Implications of broad dose distributions obtained with the single-aliquot regenerative-dose method on quartz fine-grains from loess
چکیده انگلیسی

Six samples were collected from a section of Peoria Loess in Eustis, North America, for optically stimulated luminescence (OSL) dating of quartz, and all except one (LV90) produced narrow dose distributions. A comparative study was conducted on this sample and on a ‘well-behaved’ sample (LV91), involving other dating methods and examination of the quartz OSL. These investigations revealed differences in the quartz OSL growth with dose, OSL response to thermal treatments and the range of components within the OSL signals. An ultra-fast component was found in LV90 that displayed a higher rate of sensitivity change than the fast component and this had a malign influence on the determination of the equivalent dose. The distinctive luminescence characteristics of LV90 imply either a change in wind dynamics and/or the source area for the silt.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Quaternary Geochronology - Volume 2, Issues 1–4, 2007, Pages 39–44
نویسندگان
, , , , , ,