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Tests for Green-Line Laser Stimulated Luminescence from Volcanic Glass Shards

Tests for Green-Line Laser Stimulated Luminescence from Volcanic Glass Shards
火山玻璃碎片绿线激光受激发光测试
批准号:
9628349
负责人:
Glenn Berger
金额:
$3.73万
依托单位国家:
美国
项目类别:
Standard Grant
财政年份:
1996
资助国家:
美国
项目状态:
已结题
起止时间:
1996-06-15 至 1998-11-30

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英文摘要
9628349 Berger Feasibility tests are proposed for a new technology for dating volcanic glass shards in source-distal tephra beds. Optically-stimulated luminescence (OSL) offers an alternative and potentially technically simpler means for luminescence dating. We propose to investigate the feasibility of employing green laser light to stimulate luminescence from glass shards. If large signals are observed in several samples, then to G-OSL age determinations will be carried out. A selection of 20-30 documented tephra samples will be used. Optical dating may be applicable to tephra over 300-400 ka, the present limit of TL dating of glass shards.
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