グレートバリアーリーフ形成時期の古環境復元

• Project/Area Number: 24K00712
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 17030:Human geosciences-related
• Research Institution: Akita University
• Principal Investigator: Obrochta Stephen 秋田大学, 国際資源学研究科, 教授 (60752540)
• Co-Investigator(Kenkyū-buntansha): 横山 祐典 東京大学, 大気海洋研究所, 教授 (10359648) ; 千代延 俊 秋田大学, 国際資源学研究科, 教授 (40526430) ; 窪田 薫 国立研究開発法人海洋研究開発機構, 海域地震火山部門(地震発生帯研究センター), 研究員 (80774075)
• Project Period (FY): 2024-04-01 – 2027-03-31
• Project Status: Granted (Fiscal Year 2024)
• Budget Amount: ¥17,810,000 (Direct Cost: ¥13,700,000、Indirect Cost: ¥4,110,000); Fiscal Year 2026: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000); Fiscal Year 2025: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000); Fiscal Year 2024: ¥11,440,000 (Direct Cost: ¥8,800,000、Indirect Cost: ¥2,640,000)
• Keywords: Great Barrier Reef / carbonate sedimentology

Outline of Research at the Start

The purpose of the research is to better understand the timing and reasons for the formation of the great barrier reef using geochemical analyses and fossil assemblages from sediment cores obtained from the continental slope, seaward of the Great Barrier Reef. This work also considers changes in the Pacific western boundary currents and how that would have affected reef development. Because the age of the reef cannot be determined by radiometric dating, this work is using an indirect, sedimentological approach