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Sawaki Lab
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The lab reconstructs the Proterozoic Earth from records preserved in sedimentary rocks and minerals.
AboutAbout the lab
Reading Earth's history from records in rocks.
Sawaki Lab reconstructs events that occurred on Earth's surface, mainly during the era known as the Precambrian, based on records preserved in sedimentary rocks.
The lab aims to clarify how continents have grown throughout Earth's history by studying minerals that form in magma.
The lab collects rocks through geological surveys, observes and describes them in thin sections, and dissolves them to measure isotope ratios in order to estimate the paleoenvironment.
Study areas may be in Japan or overseas.
Key terms
- Proterozoic
- The period of Earth's history from 2.5 billion to 540 million years ago. It is broadly divided into three parts: the Paleoproterozoic, Mesoproterozoic, and Neoproterozoic
- Apatite
- One of the minerals that crystallize in magma. This lab studies its ages and trace element compositions to read the history of continental growth
- Thin section
- A thin slice of rock, used to observe and describe the rock
NewsLab news
A paper by Associate Professor Sawaki and colleagues was published in Palaeogeography, Palaeoclimatology, Palaeoecology
A paper by Associate Professor Sawaki and colleagues was published in Lithos
A paper by Associate Professor Sawaki and colleagues was published in Island Arc
ResearchResearch themes
The lab mainly reconstructs events that occurred on Earth's surface during the era known as the Precambrian, relying on records preserved in sedimentary rocks. Study areas may be in Japan or overseas.
Continental Growth History Revealed by Apatite
The lab aims to clarify, from multiple perspectives, how continents have grown throughout Earth's history. Beyond zircon, on which previous studies have relied, it comprehensively investigates the ages and trace element compositions of apatite and monazite, which also crystallize in magma.
Proterozoic Environments Read from Sedimentary Rocks
The lab focuses on the Proterozoic (2.5 billion to 540 million years ago), especially changes in seawater composition. It collects rocks through geological surveys around the world, observes and describes them in thin sections, and dissolves them to measure isotope ratios and estimate the paleoenvironment.
MembersFaculty
- Associate ProfessorYusuke Sawaki
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