Precise classification of sedimentary rocks using multiple isotope measurements of heavy minerals.

KAKEN

About This Project

Japan Grant Number
JP18H01316 (JGN)
Funding Program
Grants-in-Aid for Scientific Research
Funding Organization
Japan Society for the Promotion of Science

Kakenhi Information

Project/Area Number
18H01316
Research Category
Grant-in-Aid for Scientific Research (B)
Allocation Type
  • Single-year Grants
Review Section / Research Field
  • Basic Section 17040:Solid earth sciences-related
Research Institution
  • Kyushu University
Project Period (FY)
2018-04-01 〜 2022-03-31
Project Status
Completed
Budget Amount*help
14,820,000 Yen (Direct Cost: 11,400,000 Yen Indirect Cost: 3,420,000 Yen)

Research Abstract

Apatite and monazite are the waste during zircon separation, which are used for Sr and Nd measurements, respectively using laser ablation multi-collector inductively coupled plasma mass spectrometry. In this project, we successfully set up the routine from mineral separation, U-Pb dating, and Sr-Nd-Hf isotopic measurement using zircon, apatite, and monazite. This method does not require any dissolution of rocks and wet analyses, thus, it allows quite rapid and safety measurements of multi isotopes. Additionally, the isotopic data obtained from each mineral are in good agreement with those of whole rock measured by wet analyses. Using this method, we can evaluate protolith of sedimentary and metasedimentary rocks using detrital zircon, apatite, and monazite.

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