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Earth and Life Science (Izumi) Lab
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The lab traces the changes in Earth's environment and life from strata and fossils.

AboutAbout the lab
The history of environment and life, preserved in strata.
The lab studies the changes in Earth's environment and life throughout the Phanerozoic, and the interactions between them.
To learn about past environments and how they changed, it investigates strata from various periods and analyzes their properties.
To learn about the ecology of ancient organisms and their responses to the environment, it examines fossils found in strata.
To interpret fossil data more appropriately, it also studies the forms and behaviors of living animals that can serve as models.
Key terms
- Phanerozoic
- The geological era from about 541 million years ago to the present, characterized by the diversification of life
- Trace fossil
- A fossil in which the activity of an organism itself remains in strata, such as burrows, trails, and feces
- Decapod
- A group of crustaceans with ten walking legs, including shrimp, crabs, and hermit crabs
ResearchResearch themes
The lab studies how Earth's environment and life changed throughout the Phanerozoic and how they influenced each other. The work combines fieldwork, in which strata are investigated outdoors, with laboratory experiments that analyze samples.
*Illustrative imagePaleoenvironments of the Northwest Pacific in the Pleistocene
The lab estimates how paleoclimate and paleoceanographic environments changed in the Northwest Pacific during the Quaternary Pleistocene, as an example of an icehouse interval with dispersed continents, at a fine time resolution of hundreds to thousands of years.
*Illustrative imageReading Behavior from Trace Fossils
From trace fossils, which are traces left in strata by the activities of organisms such as burrows and feces, the lab reads the behavior of ancient organisms in as much detail as possible.
*Illustrative imageDiversity of Decapods
The lab studies the morphological diversity and genetic diversity of decapods, a group that includes shrimp and crabs, covering both living and fossil species.
MembersFaculty
- Associate ProfessorKentaro Izumi
VoicesStudent voices
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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: “Layers of sedimentary rock formed on the earth's surface. 5034” AlixSaz / CC BY 4.0 (cropped)
- Paleoenvironments of the Northwest Pacific in the Pleistocene: “Bermuda Pleistocene sediments” Alessio Rovere / CC BY-SA 4.0 (cropped)
- Reading Behavior from Trace Fossils: “Diplocraterion trace fossil (Kope Formation, Upper Ordovician; Maysville West roadcut, Mason County, Kentucky, USA) 2” James St. John / CC BY 2.0 (cropped)
- Diversity of Decapods: “Harpactoxanthopsis quadrilobata fossil crab IT” James St. John / CC BY 2.0 (cropped)
- Related lab (非線形解析学
(白川 健) ): “Big wave breaking in Santa Cruz” Brocken Inaglory / CC BY-SA 3.0 (cropped) - Related lab (幾何解析、
微分幾何学、 情報幾何学 (前田 瞬) ): “Modell einer Schraubenfläche konstanter negativer Krümmung -Schilling V, 4 - 231” Ramona Trusheim / CC BY-SA 3.0 (cropped)
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