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Isolation of Quartz Grains for Optically Stimulated Luminescence (OSL) Dating of Quaternary Sediments for Paleoenvironmental Research
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Environnement
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Journal JoVE Environnement
Isolation of Quartz Grains for Optically Stimulated Luminescence (OSL) Dating of Quaternary Sediments for Paleoenvironmental Research

Isolation of Quartz Grains for Optically Stimulated Luminescence (OSL) Dating of Quaternary Sediments for Paleoenvironmental Research

DOI:
10.3791/62706-v

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09:41 min

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August 02, 2021

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, , , , ,
1Geoluminescence Dating Research Laboratory, Dept. of Geosciences,Baylor University, 2School of Earth Sciences,Zhejiang University

Chapitres

  • 00:04Introduction
  • 00:52Sediment Core Feature Evaluation and OSL (Optically Stimulated Luminescence) Sample Collection
  • 01:56Mono‐Mineralogic Quartz Extraction
  • 05:45Sediment Digestion Using Hydrofluoric Acid
  • 06:30Quartz Purity Assessment
  • 07:46Results: Quality Assessment of Isolated Quartz
  • 09:05Conclusion

Summary

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This protocol is for the isolation of quartz grains by size for luminescence dating of sediments. Outlined are physical cleansing and chemical digestions by soaking sequentially in H2O2, HCl, HF, and HCl again to isolate quartz grains. The quartz purity is quantified with microscopic assessment, Raman spectroscopy, and IR depletion ratio.

Tags

Quartz GrainsOptically Stimulated Luminescence (OSL)Quaternary SedimentsPaleoenvironmental ResearchSediment CoreDose RateOrganic Matter RemovalCarbonate RemovalMagnetic Grain RemovalSedimentologic FeaturesRaman SpectroscopyImagery

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