University of Tsukuba

Doctoral Program in Earth Evolution Sciences

Earth Evolution Sciences are the scientific study of structure, composition, history and mechanics of our planet by quantitative geological, physical, chemical and biological methods for forecasting the future. The Doctoral Program in Earth Evolution Sciences embraces a wide range of fields, including paleobiological sciences, paleogeosphere science, geodynamics, petrology, mineralogy, planetary resource geology, and Earth historical analysis; the last is an exchange program with the National Museum of Nature and Science. Such broad program allows students to become familiar with world-class research and capable of making substantive contributions. The graduate programs also provide professionals with a high level of theoretical and practical knowledge. Degrees to be awarded in the course are Doctor of Philosophy in Science, or Doctor of Philosophy in Geoscience.


Application Information



Paleobiological Science

SASHIDA Katsuo Staff Database Professor Paleozoic and Mesozoic radiolarians
My main researches are focused on taxonomy and biostratigraphy of Paleozoic and Mesozoic Radiolaria and biology of recent Radiolaria. Also I have an interest in mass extinction events during the Phanerozoic era, and Paleozoic and Mesozoic paleozoogeography and tectonic development of Southeast Asia.
AGEMATSU Sachiko Staff Database Associate Professor Conodont, graptolite, tentaculite
My research focuses on conodont taxonomy, biostratigraphy, and geological history of Asian paleocontinents.


Paleogeosphere Science

HISADA Ken-ichiro Staff Database Professor Sedimentary petrological study of orogenic belts in Asia
My research topics cover the sedimentology and tectonics of the accretionary complex on land. Also I have a great interest in the provenance study using heavy minerals and clastics. My fieldworks extend from the Japanese Islands to East and South Asia.
Kamata Yoshihito Staff Database Associate Professor Stratigraphy
FUJINO Shigehiro Staff Database Associate Professor Stratigraphy



UJIIE Kohtaro Staff Database Associate Professor Structural geology
Our team studies earthquakes in subduction zones and accretionary processes based on fieldwork, laboratory experiments, and deep ocean drilling.
YAGI Yuji Staff Database Associate Professor Seismology, Tectonophysics
Seismic source models are important in estimating crustal deformation, strong ground motion, tsunami and aftershock activity as well as for understanding nature of earthquakes. We have been developing method for analysis of stress accumulation and relaxation process during a large earthquake cycle so as to construct proper seismic source model, and applying it to geophysical observation data.



ARAKAWA Yoji Staff Database Professor Petrology and petrochemistry of igneous rocks, Radiometric age determination Isotope geochemistry
My main researches are focused on petrology, petrochemistry, and geochronology of igneous rocks worldwide. Petrology and petrochemistry (including isotope geochemistry) are necessary for clarifying the origin, genesis and formation process of igneous rocks, and geochronology technique is indispensable for understanding their absolute ages. These research approaches potentially provide keys for deciphering not only the role of igneous process in earthfs interior, but also tectonic process and history of the earth.
TSUNOGAE Toshiaki Staff Database Professor Metamorphic petrology
My research interests are mainly on metamorphic petrology, particularly focusing on pressure-temperature-time (P-T-t) evolution of high-grade metamorphic terranes and the role of fluids in the lower crust. They are all field-based studies, but laboratory works such as textural observation of thin sections, electron microprobe analysis of minerals, thermodynamic calculations of mineral phase equilibrium, and microthermometric study of fluid inclusions are also important. My current study field are granulites in South India, East Antarctica, and South Africa, which are all related to subduction and continental collision during the amalgamation stage of supercontinents.
IKEHATA Kei Staff Database Assistant Professor Petrology, Economic Geology, Geochemistry, Volcanology
My main research interests are distribution and behavior of volatile and metal element in magmatic-hydrothermal system.


Planetary Resource Geology

HAYASHI Ken-ichiro Staff Database Professor Geochemistry of mineral deposits and hydrothermal system
My research interest is all fields covering the genesis of ore deposits. I have now an interest in geochemistry of hydrothermal reactions between minerals and aqueous solution. These include solubility measurements, kinetics of dissolution and precipitation of minerals and stable isotopic exchange between minerals and aqueous species.
KOMURO Kosei Staff Database lecturer Geochemistry of ore deposits and sedimentary rocks, Evaluation of geological environment for waste disposal
My research is being conducted to understand genesis of ore deposits, and migration behavior of radionuclides and metals under hydrogeological environment.



KUROSAWA Masanori Staff Database Associate Professor Geochemical studies on the Earth's fluids by using fluid-inclusion analyses, Trace element analyses of minerals and fluid inclusions by PIXE and LA-ICP-MS, Hydrogen analyses of melt inclusions by elastic recoil coincidence spectrometry
My main researches are focused on geochemistry of minerals and fluid inclusions by PIXE and LA-ICP-MS analyses.
KYONO Atsushi Staff Database lecturer Mineralogy, Crystallography, Mineral physics
My research interests mainly lie in experimental investigations of crystal structures and physical properties of minerals.


Earth Historical Analysis(Tsukuba University graduate school Cooperation university)

KOHNO Naoki Professor Mammalian Paleontology


SHIGETA Yasunari Professor Paleontology, Geology
I mainly work on ammonoid biostratigraphy, taxonomy, and paleobiology. I am currently studying the Early Triassic biotic recovery on the basis of detailed field works in Vietnam and Russian Far East. Other research interests include paleobiogeography and evolution of the Cretaceous ammonoids in the Pacific area.


TSUTSUMI Yukiyasu Associate Professor Geochronology,Geology