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Uno Lab
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The lab investigates dynamic changes deep inside the Earth by studying reactions between rocks and fluids.
AboutAbout the lab
Reading the Earth's interior through reactions between rocks and fluids
Uno Lab studies reactions between rocks and fluids that take place deep inside the Earth.
The research ranges from reactions and fracturing in earthquake source zones to the mineral fixation of carbon dioxide and the development of supercritical geothermal resources, and the key to all of it is the reaction between rocks and fluids.
The lab combines field geological surveys, chemical analysis, hydrothermal reaction experiments, numerical simulation, and statistics and machine learning.
The aim is to gain a deep understanding of the dynamic changes inside the Earth, and to predict and make use of them.
Key terms
- Fluid
- A substance that can flow, such as water or gas. Underground, fluids move through gaps in rock and react with it.
- Mineral carbonation
- The process in which minerals in rock react with carbon dioxide and are converted into carbonate minerals.
- Supercritical
- A state under high temperature and pressure in which a substance can no longer be distinguished as either a liquid or a gas.
- Metamorphic belt
- A region where rocks have been transformed by the high temperature and pressure found underground.
ResearchResearch themes
The lab works on reactions between rocks and fluids inside the Earth, including metamorphism in subduction zones, fluid migration, the mechanisms of earthquake generation, supercritical geothermal energy, and mineral carbonation. From the perspectives of petrology, geochemistry, and structural geology, it uncovers how the Earth's interior moves, and it also tackles challenges such as developing next-generation energy and fixing carbon dioxide in minerals.
*Illustrative imageCrustal fracturing by magmatic fluids
In the high-temperature metamorphic belt of the Sør Rondane Mountains in East Antarctica, the lab analyzes traces of reactions between rocks and fluids to clarify how fluids break down the crust.
*Illustrative imageMineral carbonation
Using reactive flow-through experiments at high temperature and pressure, the lab investigates how reactions that expand rock volume, such as carbonation and hydration (reactions that take up water), become self-accelerating.
*Illustrative imagePetrology of earthquake source zones
Using geochemical analysis and machine learning on high-pressure metamorphic rocks of the Sanbagawa metamorphic belt, the lab clarifies how much silica is transported in subduction zones and how gaps in the rock become sealed.
*Illustrative imageSupercritical geothermal energy
The lab seeks to clarify in what form supercritical geothermal resources exist underground and how they formed.
MembersFaculty
Uno Lab members include faculty and students at the doctoral, master's, and undergraduate levels.As of 2026
- Associate ProfessorMasaoki UnoPublications ↗
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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: “Big garnet amphibolite (Precambrian; Warrensburg, Adirondack Mountains, New York State, USA) 26” James St. John / CC BY 2.0 (cropped)
- Crustal fracturing by magmatic fluids: “Satellite image of Sør Rondane Mountains, Antarctica ( ) (cropped)” NASA Goddard Space Flight Center from Greenbelt, MD, USA / Public domain (cropped)
- Mineral carbonation: “Liswanite” Diorit / CC0 (cropped)
- Petrology of earthquake source zones: “Nagatoro Iwadatami Rocks ( )” Guilhem Vellut from Annecy, France / CC BY 2.0 (cropped)
- Supercritical geothermal energy: “Krafla” Hansueli Krapf / CC BY-SA 3.0 (cropped)
- Related lab (Takigawa Lab): “Allende meteorite ( )” Steve Jurvetson / CC BY 2.0 (cropped)
- Related lab (Suzuki Lab): “BlackSmoker” W.R. Normark, Dudley Foster / Public domain (cropped)
- Related lab (Molecular Geochemistry Lab (MGL)): “Diamond by Peter Smyth” Peter Smyth / CC0 (cropped)
- Related lab (Itai Lab): “LakeBiwa” Ka23 13 / CC BY-SA 4.0 (cropped)
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