Construction of 3D model for the Archean tectonic zones: Investigating the possibilities of plate tectonics in the early earth

• Project/Area Number: 24K17145
• Research Category: Grant-in-Aid for Early-Career Scientists
• Allocation Type: Multi-year Fund
• Review Section: Basic Section 17040:Solid earth sciences-related
• Research Institution: Shimane University
• Principal Investigator: LAKSHMANAN SREEHARI 島根大学, 学術研究院環境システム科学系, 助教 (50907540)
• Project Period (FY): 2024-04-01 – 2027-03-31
• Project Status: Granted (Fiscal Year 2024)
• Budget Amount: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000); Fiscal Year 2026: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2025: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2024: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
• Keywords: Archean geology / Mylonite / Ductile deformation / Plate boundary / Geochronology

Outline of Research at the Start

The Archean Eon, spanning from 4 to 2.5 billion years ago, holds crucial evidence of our planet's evolution in rock records. This proposal seeks to utilize this evidence to gain insights into early plate tectonics. Detailed mapping of deformation zones in the Archean Dharwar craton and the creation of 3D models for these zones will help understand unique features of Archean deformation and plate tectonics. Additionally, this research aims to shed light on how the higher mantle temperature during the Archean influenced deformation mechanisms in the early Earth.