Optically stimulated luminescence dating of fluvial deposits

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  • Optically stimulated luminescence
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During the penultimate glaciation vast areas of the Alps were glaciated, with piedmont glaciers protruding into the foreland. In the easternmost part of the northward draining valleys of the Alps, the glaciers did not reach the foreland, but formed valley glaciers confined by the mountainous terrain. This also applies to the Ybbs valley, where samples for luminescence dating out of glaciofluvial gravel accumulations were taken at three locations along the present day river course. In a highly dynamic depositional environment, such as a glacier-fed river system, incomplete resetting of the luminescence signal is possible, in particular when transport distances are short. Because previous research has shown, and as corroborated within this study, quartz from the research area exhibits analytical problems in the high age range.

Optically stimulated luminescence

The full text of this article hosted at iucr. Tammy M. Use the link below to share a full-text version of this article with your friends and colleagues. Learn more. Fluvial deposits and landforms are important archives of river response to climate, tectonics and base level change and are commonly associated with archaeological sites. Unlike radiocarbon dating, the target material for optically stimulated luminescence OSL dating sands and silts is nearly ubiquitous in fluvial deposits and the age range for OSL spans the last glacial—interglacial cycle, a time period of interest to many Quaternary scientists.[rs_table_products tableName=”Best Dating Websites”]

The application of OSL dating to fluvial deposits is discussed with respect to its potential to provide important contributions to research in the fields of geomorphology, palaeoseismology and archaeology. Examples are given from each research field. Volume 37 , Issue 4. Please check your email for instructions on resetting your password. If you do not receive an email within 10 minutes, your email address may not be registered, and you may need to create a new Wiley Online Library account.

If the address matches an existing account you will receive an email with instructions to retrieve your username. Boreas Volume 37, Issue 4. First published: Read the full text. Tools Request permission Export citation Add to favorites Track citation. Share Give access Share full text access. Share full text access. Please review our Terms and Conditions of Use and check box below to share full-text version of article. Abstract Fluvial deposits and landforms are important archives of river response to climate, tectonics and base level change and are commonly associated with archaeological sites.

Citing Literature Number of times cited according to CrossRef: Wiley Online Library. Volume 37 , Issue 4 Special Issue: Luminescence dating of Quaternary sediments November Pages Related Information. Email or Customer ID. Forgot password? Old Password. New Password. Your password has been changed. Returning user. Request Username Can’t sign in? Forgot your username? Enter your email address below and we will send you your username.

Recent advances in OSL techniques and the development of single-grain dating capabilities have now allowed fluvial deposits, and other. Optically Stimulated Luminescence (OSL) dating allows age determination of sediments deposited during the last glacial‐interglacial cycle.

Toggle navigation ScienceBase-Catalog. Your browser does not have support for cookies enabled. Some features of this application will not work. Tammy M Rittenhour, Luminescence dating of fluvial deposits: Summary Fluvial deposits and landforms are important archives of river response to climate, tectonics and base level change and are commonly associated with archaeological sites.

In physics , optically stimulated luminescence OSL is a method for measuring doses from ionizing radiation. It is used in at least two applications:.

This paper aims to provide an overview concerning the optically stimulated luminescence OSL dating method and its applications for geomorphological research in France. An outline of the general physical principles of luminescence dating is given. A case study of fluvial sands from the lower terrace of the Moselle valley is then presented to describe the range of field and laboratory procedures required for successful luminescence dating.

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Portable Spectrofluorimeter for non-invasive analysis of cultural heritage artworks using LED sources. Luminescence spectroscopy – Spatially resolved luminescence – Time resolved luminescence – Electron spin resonance ESR. Flint and heated rocks – Ceramics and pottery – Unheated rock surfaces – Tooth enamel and quartz grains – Sediment dating. LexEva is a newly released evaluation software developed for analysis in luminescence research and dating. Few years depending on signal intensity and sensitivity of equipment for which the lexsyg systems are especially developed. Radiation Measurements 32,

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Skip to main content. Log In Sign Up. Optically stimulated luminescence dating of fluvial deposits: Jakob Wallinga. Boreas, Vol. ISSN Optically Stimulated Luminescence OSL dating allows age determination of sediments deposited during the last glacial—interglacial cycle. Methods used for the detection of incomplete resetting, or poor bleaching, are reviewed. It is argued that techniques measuring the OSL signal from small subsamples aliquots are most promising for detecting poor bleaching and for obtaining the true age for a sample in which not all grains had their OSL signal completely removed at deposition. Quartz should be the mineral of choice, because it has been shown to yield the most reliable results and because its OSL signal is more rapidly reset than that of feldspar.

This service is more advanced with JavaScript available, learn more at http: In the last few decades optically stimulated luminescence OSL dating has become an important tool in geochronological studies.

Soares I ; Sonia H. Rodrigo O. Correspondence to. Absolute dating methods have been used in chronological studies of geological processes and sedimentary units of Quaternary age in Central Amazonia, Brazil.

The full text of this article hosted at iucr. Use the link below to share a full-text version of this article with your friends and colleagues. Learn more. This relatively new technique therefore enables chronological frameworks to be established for fluvial deposits that often cannot be dated by other means. The OSL signal of quartz and feldspar minerals is reset by light exposure during fluvial transport, and builds up as a result of ionizing radiation after burial of the minerals. Incomplete resetting of the OSL signal because of inadequate light exposure in the fluvial environment can result in age overestimations, especially for relatively young samples. Methods used for the detection of incomplete resetting, or poor bleaching, are reviewed. It is argued that technique s measuring the OSL signal from small subsamples aliquots are most promising for detecting poor bleaching and for obtaining the true age for a sample in which not all grains had their OSL signal completely removed at deposition. Quartz should be the mineral of choice, because it has been shown to yield the most reliable results and because its OSL signal is more rapidly reset than that of feldspar. Aliquot size should be small, with aliquots ideally consisting of a single grain of quartz for samples in which the majority of grains are poorly bleached. The application of quartz OSL dating to investigations of fluvial deposits opens a new realm of possibilities to be explored, as is highlighted by some examples of geological applications.

The full text of this article hosted at iucr. Tammy M. Use the link below to share a full-text version of this article with your friends and colleagues. Learn more. Fluvial deposits and landforms are important archives of river response to climate, tectonics and base level change and are commonly associated with archaeological sites.

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