北京清水河流域现代稀性泥石流物质选频释光特性

doi:10.11821/yj2012040005

GEOGRAPHICAL RESEARCH ›› 2012, Vol. 31 ›› Issue (4): 619-626.doi: 10.11821/yj2012040005

• Earth Surface Processes • Previous Articles Next Articles

Selected frequency luminescence characteristics for modern turbulent debris flow materials in Qingshui River Basin,Beijing

ZHOU Rui^1,3, WEI Ming-jian^1,2,3, LI Dong-xu¹, ZHANG Bin^1,3, LIU Zhao-wen⁴, LIU Chao¹, HE You-bing¹

1. Laboratory of Luminescence Dating, Capital Normal University, Beijing 100048, China;
2. Resource Environment and Geographic Information System Beijing Key Laboratory, Beijing 100048, China;
3. State Key Laboratory Cultivation Base-Urban Environment Process and Digital Module, Beijing 100048, China;
4. Department of Human Resources, Tianjin Normal University, Tianjin 300387, China

Received:2011-03-24 Revised:2011-08-15 Online:2012-04-20 Published:2012-04-20

Abstract

Abstract: The selected frequency luminescence characteristics of turbulent debris flow materials of Damo Gully and Xibei Mount Gully were studied using BG2003 luminescence spectrograph,which was compared with the debris flow materials collected in Jiangjia gully basin,Yunnan.The result indicates that the luminescence response of the debris flow samples collected from the Qingshui River basin is obvious at the wavelengths of 290 nm,310 nm,400 nm and 480 nm by thermal stimulating.Energy storage electron mainly originates from the energy levels of 4.28 eV,4.00 eV,3.50 eV and 2.58 eV.The luminescence reponse is obvious at the wavelengths of 310 nm and 480 nm by 532 nm green optical stimulation.The relevant energy storage electron mainly originates from the energy levels of 4.00 eV and 2.58 eV.The luminescence spectrogram can be used in distinguishing the debris flow from the Qingshui River Basin and Jiangjia Valley.It is significant to conduct further studies on utilizing selected frequency luminescence technology to dating debris flow materials and distinguishing the source of the materials.

Key words: selected frequency luminescence, characteristics, turbulent debris flow

ZHOU Rui, WEI Ming-jian, LI Dong-xu, ZHANG Bin, LIU Zhao-wen, LIU Chao, HE You-bing. Selected frequency luminescence characteristics for modern turbulent debris flow materials in Qingshui River Basin,Beijing[J].GEOGRAPHICAL RESEARCH, 2012, 31(4): 619-626.

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Selected frequency luminescence characteristics for modern turbulent debris flow materials in Qingshui River Basin,Beijing

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