Luminescence ages of feldspar contaminated quartz from fluvial terrace sediments

• Autorzy: Kiyak N. G. , Erturaç M. K.
• Języki publikacji: EN

Abstrakty

EN

This study focuses on obtaining luminescence ages in feldspar contaminated quartz from well-developed fluvial terraces of the Yesilirmak (Iris) river located inside the eastern North Anatolian Fault Shear Zone (NAFZ). We applied a technique based on conventional single-aliquot regenerative-dose (SAR) protocol, modified with an IR pre-treatment to reduce the OSL contribution from feldspar for accurately measuring the dose in quartz. All investigated samples showed an ability to measure a beta dose given in the laboratory, a so called dose recovery test. The dependence of the equivalent dose on thermal treatment was also examined. Dose rate calculations were based on spectral analysis of gamma measurements by a field spectrometer on site. The efforts to establish a chronology using the IR modified SAR technique produced reliable dose results in stratigraphic order. Results were reproducible and grouped broadly between 35-109 ka for Bektemur, 32-36 ka for Kizilca, 19-47 ka for Aksalur and 35-44 ka for Sahinkaya. Obtained results show that the studied area was controlled by tectonic activities within the last 50 ka and the sample Aksalur 2 was the loess deposit formed by aeolian activity.

Słowa kluczowe

EN

OSL dating; feldspar; quartz; terrace sediments; SAR dose protocol

• Wydawca: De Gruyter
• Czasopismo: Geochronometria
• Rocznik: 2008
• Tom: Vol. 30
• Strony: 55--60
• Opis fizyczny: Bibliogr. 22 poz., rys., tab.

Twórcy

autor

Kiyak N. G.

autor

Erturaç M. K.

• ISIK University, Faculty of Science and Arts, Physics Department, Sile, 34980 Istanbul, Turkey,

Bibliografia

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