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Oguchi Lab
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The lab studies rock weathering to understand how landforms develop and how stone structures can be preserved.
AboutAbout the lab
Unraveling rock weathering through analysis.
The Oguchi Lab studies how rocks, soils, and minerals weather and deteriorate.
It examines the properties of materials using a variety of analytical techniques and monitors the environments in which those materials are placed as thoroughly as possible.
The research is applied to the weathering, conservation, and restoration of stone and concrete structures, and to estimating the causes of landform formation and natural disasters.
Centered on rock weathering science, geomorphology, and physical geography, the lab aims for interdisciplinary research that takes advantage of its position between research fields.
Key terms
- Weathering
- Weathering: the phenomenon in which rocks are gradually broken down or altered by rain, temperature changes, salts, and other agents
- Conservation and restoration
- Conservation and restoration: treating stone structures and cultural properties to halt deterioration and keep them in their original form
- Geomorphology
- Geomorphology: the study of how surface features such as mountains, valleys, and slopes are formed and change
NewsLab news
View More ↗ResearchResearch themes
Using a variety of analytical techniques, the lab examines the properties of rocks, soils, and minerals, and monitors the environments in which these materials are placed as far as possible. From this, it clarifies the processes of weathering and deterioration of these materials.
*Illustrative imageInteractions among Salts, Water, and Rocks
A wide variety of salts are involved in rock weathering, but their properties, such as equilibrium relative humidity and crystallization pressure, are not well understood. By digging into physical chemistry to clarify the properties of salts, and combining this with rock properties such as pore size distribution, the lab explores the mechanisms of weathering and deterioration.
*Illustrative imageLandform and Geological Change Seen through Weathering
Even for rocks with the same name, differences in the types and proportions of minerals change how they weather in the same environment. From the perspective of weathering, the lab studies phenomena such as the accumulation of collapsible material, including weathering products, on slopes and the failures triggered by rainfall or earthquakes.
MembersFaculty
- ProfessorChiaki Oguchi
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: “Ffionphort cracked granite boulder” 作者不詳 / Public domain (cropped)
- Interactions among Salts, Water, and Rocks: “Gray tafoni” Dawn Endico / CC BY-SA 2.0 (cropped)
- Landform and Geological Change Seen through Weathering: “Mudslide R477 a2” Alpsdake / CC BY-SA 3.0 (cropped)
- Related lab (澤田研究室): “Soil Profile Showing 1912 ash layer and ash C, Archeological Compliance Excavation Near Brooks Camp Visitor Center ( )” Katmai National Park and Preserve / Public domain (cropped)
- Related lab (宮本研究室): “Tokyo L7 lrg” Image courtesy Ron Beck, USGS Eros Data Center Satellite Systems Branch / Public domain (cropped)
- Related lab (小谷研究室): “Tsunami evacuation route sign on the road, Kamakura, 2016” DimiTalen / CC0 (cropped)
- Related lab (鼎研究室): “Flooded Tamagawa in aftermath of Typhoon Talas 2011” Kazuhiro Keino / CC BY 2.0 (cropped)
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