Hiroshima University Syllabus

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Japanese
Academic Year 2026Year School/Graduate School School of Science
Lecture Code HX668400 Subject Classification Specialized Education
Subject Name 地球惑星システム学特別講義(分子地球化学)
Subject Name
(Katakana)
チキュウワクセイシステムガクトクベツコウギ(ブンシチキュウカガク)
Subject Name in
English
Special Lectures in Earth and Planetary Systems Science(Molecular geochemistry)
Instructor TAKAHASHI YOSHIO,OHKAWA MAKIO
Instructor
(Katakana)
タカハシ ヨシオ,オオカワ マキオ
Campus Higashi-Hiroshima Semester/Term 3rd-Year,  Second Semester,  4Term
Days, Periods, and Classrooms (4T) Inte
Lesson Style Lecture Lesson Style
(More Details)
Face-to-face
 
Credits 1.0 Class Hours/Week   Language of Instruction J : Japanese
Course Level 4 : Undergraduate Advanced
Course Area(Area) 25 : Science and Technology
Course Area(Discipline) 04 : Earth and Planetary Science
Eligible Students
Keywords Interactions among chemical elements 
Special Subject for Teacher Education   Special Subject  
Class Status
within Educational
Program
(Applicable only to targeted subjects for undergraduate students)
 
Criterion referenced
Evaluation
(Applicable only to targeted subjects for undergraduate students)
 
Class Objectives
/Class Outline
The Earth and planets are made of chemical elements. These elements were created through nucleosynthesis driven by nuclear reactions in the universe—a realm governed by nuclear physics and the stability of atomic nuclei. In contrast, the interactions among these elements, once formed, belong to the world of chemistry, which is shaped by the stability of electrons. Through the accumulation of these interactions, the Earth and planets evolved, material cycles emerged, and life was nurtured. Therefore, major themes such as elucidating the laws that govern present-day material cycles in the universe and on Earth, uncovering the evolutionary history of the universe, Earth, and life based on those laws, and addressing current issues related to the environment, resources, and climate—as well as predicting their future—can all be explained through the combination of “nuclear physics” and “interactions among elements.” The role of geochemistry is to systematically treat these “interactions among elements” according to the laws of physical chemistry. Based on the accumulated understanding of atomic and molecular interactions, the field that organizes all elements systematically according to the periodic table and applies this framework to the material cycles of the Earth and planets is known as molecular geochemistry.  
Class Schedule In this course, after covering foundational topics such as elemental abundances in the solar system and chemical thermodynamics, students will learn methods for probing molecular-level interactions using spectroscopic techniques such as X-ray Absorption Fine Structure (XAFS). Examples of molecular geochemistry research based on these methods will also be introduced.

Report 
Text/Reference
Books,etc.
Molecular Geochemistry (edited by Yoshio Takahashi; written in Japanese), Nagoya University Press 
PC or AV used in
Class,etc.
(More Details) Projector 
Learning techniques to be incorporated
Suggestions on
Preparation and
Review
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