OSL dating of sea floor sediments at the okinawa trough

Vaidehi Varma, Shin Toyoda, Yusuke Isono, Ai Uchida, Debabrata Banerjee, Ashok Kumar Singhvi, Jun Ichiro Ishibashi

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

In estimating the ages of sea floor hydrothermal deposits, the age of the sediments overlying it would give the youngest limit if the sedimentation age is correct. The OSL (optically stimulated luminescence) method was applied to two sediment cores taken by an acrylic corer from the seafloor in the Okinawa Trough. The ages, obtained by the polymineral fine grain method, did not correlate with the stratigraphic sequence within the core, implying either insufficient bleaching of the sediments at the time of the deposition or mixing of sediments of different ages. The polymineral fine grain OSL dating method did not work to date the present sediment samples at the sea floor in the Okinawa Trough.

Original languageEnglish
Title of host publicationSubseafloor Biosphere Linked to Hydrothermal Systems
Subtitle of host publicationTAIGA Concept
PublisherSpringer Japan
Pages617-620
Number of pages4
ISBN (Electronic)9784431548652
ISBN (Print)9784431548645
DOIs
Publication statusPublished - Jan 1 2015

    Fingerprint

All Science Journal Classification (ASJC) codes

  • Earth and Planetary Sciences(all)

Cite this

Varma, V., Toyoda, S., Isono, Y., Uchida, A., Banerjee, D., Singhvi, A. K., & Ishibashi, J. I. (2015). OSL dating of sea floor sediments at the okinawa trough. In Subseafloor Biosphere Linked to Hydrothermal Systems: TAIGA Concept (pp. 617-620). Springer Japan. https://doi.org/10.1007/978-4-431-54865-2_48