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Earth and Planetary Materials Science (Petrology Group, Kawakami) Lab
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A lab that explores the makeup of the crust and mantle through rocks.

AboutAbout the lab
Reading the deep Earth from the records preserved in rocks.
The Petrology Group is one of the two groups that make up the Earth Materials Science division, and it studies the igneous and metamorphic rocks that make up the crust and mantle.
The group carries out fieldwork, as well as laboratory microanalysis of minerals and analysis of rocks.
From the histories of temperature, pressure, deformation, and time recorded in metamorphic and plutonic rocks, the group studies processes that occur in continental collision zones and subduction zones.
Using fluid inclusions and small inclusions of granitic composition and glass trapped in rocks, the group investigates fluid activity and partial melting in the deep crust.
The group also pursues research that combines petrology with geochronology (petrochronology).
The Mineralogy Group of the same division is introduced as a separate lab, the Mineralogy Lab.
Key terms
- Metamorphic rock
- A rock formed when an original rock changes its properties under high temperature and pressure underground
- Zircon
- A mineral found in rocks. The age at which a rock formed can be determined from the uranium and other elements within it
- Fluid inclusion
- A tiny droplet of surrounding liquid or gas trapped inside a mineral as it forms
ResearchResearch themes
The lab studies the metamorphic and igneous rocks that make up the crust and mantle, and aims to elucidate orogeny occurring deep underground where plates converge.
View More ↗MembersFaculty
The members of the Petrology Group are faculty, doctoral and master's graduate students, fourth-year undergraduate students, and research students.
- ProfessorTetsuo Kawakami
- Assistant ProfessorFumiko Higashino
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Thin section scan crossed polarizers Siilinjärvi R” kallerna / CC BY-SA 4.0 (cropped)
- Elucidating Orogeny: “Iziko Mineral Zircon (cropped)” Nkansah Rexford / CC BY 3.0 (cropped)
- Related lab (地球テクトニクス講座): “Weathered growth rings at Aztec Ruins National Monument” Michael Gäbler / CC BY 3.0 (cropped)
- Related lab (鉱物学講座
(三宅 亮) ): “Olivine Crystals from El Golfo on Lanzarote” Jan Helebrant (Juhele_CZ on Flickr) https://www.flickr.com/people/96541566@N06/ / CC BY-SA 2.0 (cropped) - Related lab (地殻物理学
(地球レオロジー・清水研究室) ): “FaultGouge” Qfl247 (talk) (Transferred by Citypeek/Original uploaded by Qfl247) / CC BY-SA 3.0 (cropped) - Related lab (宇宙地球化学
(伊藤正一 (地質学鉱物学分野)) ): “Allende meteorite” Shiny Things / CC BY 2.0 (cropped)
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