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Article: Optical dating: Insufficiently bleached sediments
Title | Optical dating: Insufficiently bleached sediments |
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Authors | |
Issue Date | 1994 |
Publisher | Pergamon. The Journal's web site is located at http://www.elsevier.com/locate/radmeas |
Citation | Radiation Measurements, 1994, v. 23 n. 2-3, p. 563-567 How to Cite? |
Abstract | Although infrared-stimulated luminescence (IRSL) signals in feldspars can be bleached rapidly by sunlight, there could still be a small amount of IRSL signal remaining in sediment grains if they have experienced only relatively short sunlight exposure before deposition. This remaining signal results in a "remnant dose" stored in the grain and is important for young samples but negligible for old samples. Several methods have been introduced to detect insufficient bleaching, and some of them can provide information on the extent of the bleaching. Others can only distinguish between samples bleached for a very long time and for a short time. Empirical methods are introduced to evaluate the possible values of equivalent dose accumulated since the grains were deposited. These methods involve the analysis of the equivalent doses and the natural IRSL signals obtained using single-disc dose determination methods. © 1994. |
Persistent Identifier | http://hdl.handle.net/10722/90461 |
ISSN | 2021 Impact Factor: 1.743 2020 SCImago Journal Rankings: 0.703 |
DC Field | Value | Language |
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dc.contributor.author | Li, SH | en_HK |
dc.date.accessioned | 2010-09-06T10:10:55Z | - |
dc.date.available | 2010-09-06T10:10:55Z | - |
dc.date.issued | 1994 | en_HK |
dc.identifier.citation | Radiation Measurements, 1994, v. 23 n. 2-3, p. 563-567 | en_HK |
dc.identifier.issn | 1350-4487 | en_HK |
dc.identifier.uri | http://hdl.handle.net/10722/90461 | - |
dc.description.abstract | Although infrared-stimulated luminescence (IRSL) signals in feldspars can be bleached rapidly by sunlight, there could still be a small amount of IRSL signal remaining in sediment grains if they have experienced only relatively short sunlight exposure before deposition. This remaining signal results in a "remnant dose" stored in the grain and is important for young samples but negligible for old samples. Several methods have been introduced to detect insufficient bleaching, and some of them can provide information on the extent of the bleaching. Others can only distinguish between samples bleached for a very long time and for a short time. Empirical methods are introduced to evaluate the possible values of equivalent dose accumulated since the grains were deposited. These methods involve the analysis of the equivalent doses and the natural IRSL signals obtained using single-disc dose determination methods. © 1994. | en_HK |
dc.language | eng | en_HK |
dc.publisher | Pergamon. The Journal's web site is located at http://www.elsevier.com/locate/radmeas | en_HK |
dc.relation.ispartof | Radiation Measurements | en_HK |
dc.title | Optical dating: Insufficiently bleached sediments | en_HK |
dc.type | Article | en_HK |
dc.identifier.openurl | http://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1350-4487&volume=23&spage=563&epage=567&date=1994&atitle=Optical+dating:+insufficiently+bleached+sediments | en_HK |
dc.identifier.email | Li, SH:shli@hku.hk | en_HK |
dc.identifier.authority | Li, SH=rp00740 | en_HK |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.scopus | eid_2-s2.0-0028405403 | en_HK |
dc.identifier.hkuros | 4154 | en_HK |
dc.identifier.volume | 23 | en_HK |
dc.identifier.issue | 2-3 | en_HK |
dc.identifier.spage | 563 | en_HK |
dc.identifier.epage | 567 | en_HK |
dc.publisher.place | United Kingdom | en_HK |
dc.identifier.scopusauthorid | Li, SH=24438103700 | en_HK |
dc.identifier.issnl | 1350-4487 | - |