scholarly journals Applicability of Electron Spin Resonance(ESR) and Thermoluminescence(TL) Dating Methods Using Quartz Grains for Marine Terrace Sediments.

1997 ◽  
Vol 36 (2) ◽  
pp. 87-96
Author(s):  
Ryuta Hataya ◽  
Kazuhiro Tanaka ◽  
Yuji Saito ◽  
Tetsuo Hashimoto ◽  
Satoshi Shimura
Keyword(s):  
Electron Spin Resonance ◽  
Electron Spin ◽  
Marine Terrace ◽  
Tl Dating ◽  
Spin Resonance ◽  
Dating Methods ◽  
Quartz Grains

scholarly journals Recent developments in Quaternary dating methods

2008 ◽  
Vol 63 (3) ◽  
pp. 176-180 ◽  
Author(s):  
I. Hajdas ◽  
S. Ivy-Ochs ◽  
R. Pickering ◽  
F. Preussner
Keyword(s):  
Electron Spin Resonance ◽  
Electron Spin ◽  
Cosmogenic Nuclides ◽  
Quaternary Deposits ◽  
Uranium Series ◽  
Spin Resonance ◽  
Dating Methods ◽  
Potential Problems ◽  
Recent Developments ◽  
Physical Background

Abstract. An overview of methods to numerically date continental Quaternary deposits is provided including radiocarbon, Uranium series, cosmogenic nuclides, luminescence and electron spin resonance. Physical background and methodology are briefly described and potential problems as well as recent developments in the field are highlighted.

scholarly journals RECENSIÓN. Preusser, F. Hajdas, I. & Ivy-Ochs. S. (eds.) 2008. Recent progress in Quaternary dating methods. E & G Quaternary Science Journal, 252 pp.

2021 ◽  
Vol 24 (1) ◽  
pp. 105
Author(s):  
Juan Usera
Keyword(s):  
Magnetic Field ◽  
Electron Spin Resonance ◽  
Electron Spin ◽  
Recent Progress ◽  
Science Journal ◽  
Earth’S Magnetic Field ◽  
Spin Resonance ◽  
Dating Methods ◽  
Earth's Magnetic Field ◽  
Sobre Todo

La datación de los materiales cuaternarios ha sido, desde siempre, uno de los principales problemas con los que se han encontrado los investigadores que trabajan en esta Época o Sistema. Esto es verificable por los numerosos trabajos dedicados a precisar la edad de los afloramientos mediante estudios isotópicos, Luminiscencia, Racemización de aminoácidos, reacciones inducidas por la radiación cósmica, Paleomagnetismo, ESR (Electron Spin Resonance), etc. Los trabajos editados por Preusser et al. (2008) recogen una parte importante de los métodos más recientes utilizados en la datación de los materiales cuaternarios. Algunos son bien conocidos como las dataciones por isótopos del Carbono, como el C14, o del U234/Th230. Otros métodos de datación de materiales cuaternarios no son tan conocidos, como la utilización de la EMF (Earth’s Magnetic Field. Así mismo, se tratan las dataciones por Luminiscencia. El trabajo continúa con un análisis de los resultados de las dataciones basadas en las señales de ESR, en cuarzos sometidos a diferentes situaciones ambientales. Otro de los procedimientos expuestos en este número especial de E & G Quaternary Science Revue, son las dataciones a partir de nuclidos cosmogénicos. Por último, hay que tener en cuenta, que la mayor parte de las propuestas de estos procedimientos de datación se hacen aplicables sobre todo a materiales continentales: depósitos fluviales, glaciares, eólicos y también yacimientos arqueológicos, aunque hay referencias a lo largo de los trabajos a su aplicación con éxito a materiales de origen marino.

scholarly journals Dating of fossil human teeth and shells from Toca do Enoque site at Serra das Confusões National Park, Brazil

2016 ◽  
Vol 88 (2) ◽  
pp. 847-855 ◽  
Author(s):  
ANGELA KINOSHITA ◽  
HENRY L. SULLASI ◽  
VIVIANE K. ASFORA ◽  
RENATA L. AZEVEDO ◽  
PEDRO GUZZO ◽  
...  
Keyword(s):  
Electron Spin Resonance ◽  
Electron Spin ◽  
National Park ◽  
Archaeological Site ◽  
Human Tooth ◽  
Esr Dating ◽  
Archaeological Excavation ◽  
Human Teeth ◽  
Spin Resonance ◽  
Dating Methods

ABSTRACT This work reports the dating of a fossil human tooth and shell found at the archaeological site Toca do Enoque located in Serra das Confusões National Park (Piauí, Brazil). Many prehistoric paintings have been found at this site. An archaeological excavation unearthed three sepulchers with human skeletons and some shells. Two Brazilian laboratories, in Ribeirão Preto (USP) and Recife (UFPE), independently performed Electron Spin Resonance (ESR) measurements to date the tooth and the shell and obtain the equivalent dose received by each sample. The laboratories determined similar ages for the tooth and the shell (~4.8 kyBP). The results agreed with C-14 dating of the shell and other samples (charcoal) collected in the same sepulcher. Therefore, this work provides a valid inter-comparison of results by two independent ESR-dating laboratories and between two dating methods; i.e., C-14 and ESR, showing the validity of ESR dating for this range of ages.

scholarly journals Electron spin resonance signals of quartz in present-day river bed sediments and possible source rocks in the Kizu River basin, Western Japan

2016 ◽  
Vol 43 (1) ◽  
pp. 155-161
Author(s):  
Aiko Shimada ◽  
Masashi Takada ◽  
Shin Toyoda
Keyword(s):  
Electron Spin Resonance ◽  
River Basin ◽  
Electron Spin ◽  
Source Rocks ◽  
Bed Sediments ◽  
Mixing Ratios ◽  
River Bed ◽  
Spin Resonance ◽  
Western Japan ◽  
Quartz Grains

Abstract In this study, measurements of electron spin resonance (ESR) signals from quartz grains from present-day river bed sediments of the Kizu River basin (western Japan) were used to estimate the mixing ratios of the possible source materials of these fluvial deposits. The dose-saturated ESR signal intensities obtained from the Al and Ti-Li centers in quartz grains were close to the range between the maximum and minimum intensities of their potential source rocks, meaning it was possible to estimate the mixing ratios of these sources. The results indicate that the dose-saturated Al and Ti-Li center ESR intensities can be used to quantitatively estimate the provenance of the sediments deposited by the Kizu River.

scholarly journals Late pleistocene movement of Nam O - Nam Dong fault: evidence from electron spin resonance dating of fault gouge in the Western Da Nang city

2021 ◽  
Vol 43 (3) ◽  
Author(s):  
Hung Nguyen Quoc ◽  
Hai Tran Thanh ◽  
Dao Vu Anh ◽  
Thanh Ngo Xuan
Keyword(s):  
Electron Spin Resonance ◽  
Fault Zone ◽  
Late Pleistocene ◽  
Electron Spin ◽  
Field Investigation ◽  
Fault Gouge ◽  
Frictional Heat ◽  
Esr Dating ◽  
Spin Resonance ◽  
Quartz Grains

The Nam O - Nam Dong fault is rated as one of the most seismic source zones in Central Vietnam. Field investigation in the mountainous areas in the Cam Le and Hoa Vang districts (Da Nang city), which is a part of the Nam O - Nam Dong fault zone, the authors have discovered fault gouge zone of 5-40 cm width within the Dai Loc granitic rock. Two fault gouge samples were collected for Electron spin resonance (ESR) dating. The results from the ESR dating on the quartz grains from the fault gouge samples showed the youngest age from the smallest fraction, probably indicating that ESR signals in the fractions were completely zeroed at the time of faulting due to frictional heat. The preliminary results from the ESR dating on the quartz grains from the fault gouge indicate that the last major faulting in this site was later the ages of 15.05±3.55 ka to 18.21±4.06 ka ago. Multiple actives during the late Pleistocene - Holocene of this fault had uplifted the fault gouge from a depth-seated to the present-day locality. These data suggest that this fault zone can be classified as a potentially active fault zone and presents some seismic hazards.

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