<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><p>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.</p></abstract>

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.

Luminescence Ages of Feldspar Contaminated Quartz from Fluvial Terrace Sediments

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

Eurasia Institute of Earth Sciences, Istanbul Technical University, Maslak, 34398 Istanbul, Turkey

Geochronometria

{"article-title":"Luminescence Ages of Feldspar Contaminated Quartz from Fluvial Terrace Sediments"}

This study focuses on obtaining luminescence ages in feldspar contaminated quartz from well-developed fluvial terraces of the Yesilirmak (Iris) river located...

Luminescence Ages of Feldspar Contaminated Quartz from Fluvial Terrace Sediments

Publié en ligne: 16 avr. 2008

Pages: 55 - 60

DOI: https://doi.org/10.2478/v10003-008-0007-8

Mots clés
OSL dating, feldspar, quartz, terrace sediments, SAR dose protocol

This content is open access.

Luminescence Ages of Feldspar Contaminated Quartz from Fluvial Terrace Sediments

Publié en ligne: 16 avr. 2008

Pages: 55 - 60

DOI: https://doi.org/10.2478/v10003-008-0007-8

Mots clésOSL dating, feldspar, quartz, terrace sediments, SAR dose protocol

This content is open access.

Mots clés
OSL dating, feldspar, quartz, terrace sediments, SAR dose protocol