- Timetable
- Download all abstracts
- Plenary Lectures
- MSSJ Special Program
- Award Lecture
- Symposium Sessions（Day1, Day2）
- Fundamental Sessions（Day1, Day3）
- Young Researchers' Sessions (Int'l)（Day1, Day3）
- Young Researchers' Sessions（Day1, Day3）
- Poster Presentations（Day1, Day2, Day3）
- Evening Workshop
- Corporate Program
Poster Presentations
Day 3, June 12（Wed.） Room P1 (Multipurpose Hall)・Room P2 (Conference Room 101+102)
- 3P-22
Paleoenvironmental Reconstruction Using Oxygen Isotopic Ratios in Gypsum from Limestone Caves: Evaluation for Pretreatment Methods for Conversion to BaSO4
(1Univ. Tsukuba, 2Univ. Tsukuba)
oMiku Suzuki1, Teruyuki Maruoka2
The oxygen isotopic ratios of sulfate in gypsum formed in limestone caves can be used for paleoenvironmental reconstruction. Although the oxygen isotopic ratios of sulfate ions are analyzed using BaSO4 produced from dissolved gypsum, no standard method for conversion from gypsum to BaSO4 has been established to date. In this study, we discuss the reliability of available pretreatment methods for obtaining accurate oxygen isotopic ratios in gypsum.