{"id":3111,"date":"2025-06-05T16:00:29","date_gmt":"2025-06-05T07:00:29","guid":{"rendered":"https:\/\/www.elst.okayama-u.ac.jp\/en\/?page_id=3111"},"modified":"2026-01-06T15:54:42","modified_gmt":"2026-01-06T06:54:42","slug":"areas03_planet","status":"publish","type":"page","link":"https:\/\/www.elst.okayama-u.ac.jp\/en\/education\/mc-chikyu\/areas03_planet\/","title":{"rendered":"Planetary Surface Environmental Science"},"content":{"rendered":"<h5>&nbsp;<\/h5>\n<p><img loading=\"lazy\" decoding=\"async\" class=\" wp-image-69 aligncenter\" src=\"https:\/\/www.elst.okayama-u.ac.jp\/up_load_files\/areas\/areas03_planet\/theme2.png\" alt=\"\" width=\"504\" height=\"378\"><\/p>\n<p>Our research target is planetary surface\/near-surface environments to understand the past geological processes and present status in anticipation of future manned missions especially on the Moon and Mars. To achieve this, our division is conducting a wide range of research with various approaches, such as remote sensing data analysis, in-situ geophysical data analysis, numerical simulations, laboratory experiments, and extraterrestrial sample analysis.<\/p>\n<table class=\"el_table_fix\" style=\"width: 100%\">\n<tbody>\n<tr>\n<th style=\"width: 20%\"><a href=\"https:\/\/www.elst.okayama-u.ac.jp\/en\/wp-content\/uploads\/sites\/2\/2026\/01\/a77e0bae8846afefa420dbb07c82b08e-scaled.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-3445\" src=\"https:\/\/www.elst.okayama-u.ac.jp\/en\/wp-content\/uploads\/sites\/2\/2026\/01\/a77e0bae8846afefa420dbb07c82b08e-scaled.jpg\" alt=\"\" width=\"1815\" height=\"2560\" srcset=\"https:\/\/www.elst.okayama-u.ac.jp\/en\/wp-content\/uploads\/sites\/2\/2026\/01\/a77e0bae8846afefa420dbb07c82b08e-scaled.jpg 1815w, https:\/\/www.elst.okayama-u.ac.jp\/en\/wp-content\/uploads\/sites\/2\/2026\/01\/a77e0bae8846afefa420dbb07c82b08e-213x300.jpg 213w, https:\/\/www.elst.okayama-u.ac.jp\/en\/wp-content\/uploads\/sites\/2\/2026\/01\/a77e0bae8846afefa420dbb07c82b08e-726x1024.jpg 726w, https:\/\/www.elst.okayama-u.ac.jp\/en\/wp-content\/uploads\/sites\/2\/2026\/01\/a77e0bae8846afefa420dbb07c82b08e-768x1083.jpg 768w, https:\/\/www.elst.okayama-u.ac.jp\/en\/wp-content\/uploads\/sites\/2\/2026\/01\/a77e0bae8846afefa420dbb07c82b08e-1089x1536.jpg 1089w, https:\/\/www.elst.okayama-u.ac.jp\/en\/wp-content\/uploads\/sites\/2\/2026\/01\/a77e0bae8846afefa420dbb07c82b08e-1452x2048.jpg 1452w\" sizes=\"auto, (max-width: 1815px) 100vw, 1815px\" \/><\/a><\/th>\n<td style=\"width: 80%\">\n<ul>\n<li style=\"list-style-type: none;font-size: 12px;margin-left: -20px\"><span style=\"font-size: 12pt\">Prof. KAMEDA Jun<\/span><\/li>\n<li style=\"list-style-type: none;font-size: 12px;margin-left: -20px\"><span style=\"font-size: 12pt\">E-mail\uff1ajkameda <span style=\"color: #0000ff\">[at]<\/span> okayama-u.ac.jp<\/span><\/li>\n<li style=\"list-style-type: none;font-size: 12px;margin-left: -20px\"><span style=\"font-size: 12pt\">structural geology\n<p><\/span><\/li>\n<\/ul>\n<p><span style=\"font-size: 12pt\"><a class=\"el_linkBtn\" href=\"https:\/\/soran.cc.okayama-u.ac.jp\/html\/ca6482b13aba6ab0d077bc38d49d4023_en.html\">Directory of Researchers<\/a><\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>We study geological processes involving water in the planetary surface environments through fieldwork, laboratory experiments, and characterization of microscopic properties using probe microscopes.<\/p>\n<p>&nbsp;<\/p>\n<table class=\"el_table_fix\" style=\"width: 100%\">\n<tbody>\n<tr>\n<th style=\"width: 20%\"><a href=\"https:\/\/www.elst.okayama-u.ac.jp\/en\/wp-content\/uploads\/sites\/2\/2026\/01\/93462b9109c18cc8f66da9080b30d9ab.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-3453\" src=\"https:\/\/www.elst.okayama-u.ac.jp\/en\/wp-content\/uploads\/sites\/2\/2026\/01\/93462b9109c18cc8f66da9080b30d9ab.jpg\" alt=\"\" width=\"352\" height=\"422\" srcset=\"https:\/\/www.elst.okayama-u.ac.jp\/en\/wp-content\/uploads\/sites\/2\/2026\/01\/93462b9109c18cc8f66da9080b30d9ab.jpg 352w, https:\/\/www.elst.okayama-u.ac.jp\/en\/wp-content\/uploads\/sites\/2\/2026\/01\/93462b9109c18cc8f66da9080b30d9ab-250x300.jpg 250w\" sizes=\"auto, (max-width: 352px) 100vw, 352px\" \/><\/a><\/th>\n<td style=\"width: 80%\">\n<ul>\n<li style=\"list-style-type: none;font-size: 12px;margin-left: -20px\"><span style=\"font-size: 12pt\">Prof. OHTAKE Makiko<\/span><\/li>\n<li style=\"list-style-type: none;font-size: 12px;margin-left: -20px\"><span style=\"font-size: 12pt\">E-mail\uff1amohtake <span style=\"color: #0000ff\">[at]<\/span> okayama-u.ac.jp<\/span><\/li>\n<li style=\"list-style-type: none;font-size: 12px;margin-left: -20px\"><span style=\"font-size: 12pt\">&nbsp;<\/span><\/li>\n<\/ul>\n<p><span style=\"font-size: 12pt\"><a class=\"el_linkBtn\" href=\"https:\/\/soran.cc.okayama-u.ac.jp\/html\/cef9cc3407cb89778c2fc0f9228a80e5_en.html\">Directory of Researchers<\/a><\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<table class=\"el_table_responsive\" style=\"width: 100%\">\n<tbody>\n<tr>\n<th style=\"width: 20%\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium\" src=\"https:\/\/www.elst.okayama-u.ac.jp\/up_load_files\/areas\/areas03_planet\/RUJ Trishit.png\" width=\"320\" height=\"408\"><\/th>\n<td style=\"width: 80%\">\n<ul>\n<li style=\"list-style-type: none;font-size: 12px;margin-left: -20px\"><span style=\"font-size: 12pt\">Assoc. Prof. Ruj Trishit<\/span><\/li>\n<li style=\"list-style-type: none;font-size: 12px;margin-left: -20px\"><span style=\"font-size: 12pt\">E-mail\uff1atrishitruj <span style=\"color: #0000ff\">[at]<\/span> okayama-u.ac.jp&nbsp;<\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p><span style=\"font-size: 12pt\"><a class=\"el_linkBtn\" href=\"https:\/\/soran.cc.okayama-u.ac.jp\/html\/ca6482b13aba6ab08013a101ec5a382a_ja.html\">Directory of Reseachers<\/a>&nbsp;<\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div style=\"width: 218px\" class=\"wp-caption alignright\"><a href=\"https:\/\/www.elst.okayama-u.ac.jp\/up_load_files\/areas\/areas03_planet\/img_RUJ.png\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.elst.okayama-u.ac.jp\/up_load_files\/areas\/areas03_planet\/img_RUJ.png\" alt=\"\" width=\"208\" height=\"277\"><\/a><p class=\"wp-caption-text\">Field-trip in Mongolia to investigate the periglacial landforms. This study is important to locate the sub-surface ice deposits on Mars<\/p><\/div>\n<p>I am a Planetary Geologist. My research group tries to understand the surface geological evolution of rocky planetary bodies from Mars, Moon and even on Ryugu. Currently, we are focussing on the future exploration missions and the landing site selection. For this, we are now conducting investigations from the Earth analog terrains in US and in Monglia. In future, we plan to recreate planetary surface environmental conditions in a chambers (which will be equipped with Hyperspectral Cameras) to better understnd the Martian surface geological processes.<\/p>\n<p>&nbsp;<\/p>\n<table class=\"el_table_fix\" style=\"width: 100%\">\n<tbody>\n<tr>\n<th style=\"width: 20%\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium\" src=\"https:\/\/www.elst.okayama-u.ac.jp\/up_load_files\/areas\/areas03_planet\/IZAWA MATTHEW RICHAR.jpg\" width=\"320\" height=\"408\"><\/th>\n<td style=\"width: 80%\">\n<ul>\n<li style=\"list-style-type: none;font-size: 12px;margin-left: -20px\"><span style=\"font-size: 12pt\">Assoc. Prof. IZAWA MATTHEW RICHAR<\/span><\/li>\n<li style=\"list-style-type: none;font-size: 12px;margin-left: -20px\"><span style=\"font-size: 12pt\">E-mail: <span id=\"content_ousdb1_lp$002fitem$005b1$005d$002fsys_mail\">matthew_izawa <span style=\"color: #0000ff\">[at]<\/span> <\/span>okayama-u.ac.jp<\/span><\/li>\n<li style=\"list-style-type: none;font-size: 12px;margin-left: -20px\"><span style=\"font-size: 12pt\">Astrobiology, Meteorites, Mars, Asteroids, Remote sensing, Spectroscopy\n<p><\/span><\/li>\n<\/ul>\n<p><span style=\"font-size: 12pt\"><a class=\"el_linkBtn\" href=\"https:\/\/soran.cc.okayama-u.ac.jp\/html\/9627777c396c7d1074506e4da22f6611_en.html\">Directory of Researchers<\/a>\u3000\u3000\u3000<a class=\"el_linkBtn\" href=\"https:\/\/www.misasa.okayama-u.ac.jp\/eng\/\">Link to group homepage<\/a><\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Study of carbonaceous chondrites and their parent bodies using sample analysis (e.g., by XRD, EPMA, Raman spectroscopy, reflectance spectroscopy) along with spacecraft and telescopic observations, including from the OSIRIS-REx mission; Mars exploration using mineralogical and spectroscopic methods to investigate martian meteorites and Mars analogue materials; and investigation of possible ancient microbial trace fossils in basaltic rocks.<\/p>\n<p>&nbsp;<\/p>\n<table style=\"border-collapse: collapse;width: 100%\">\n<tbody>\n<tr>\n<td style=\"width: 50%\"><a href=\"https:\/\/www.elst.okayama-u.ac.jp\/up_load_files\/areas\/areas03_planet\/Fig1.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone\" src=\"https:\/\/www.elst.okayama-u.ac.jp\/up_load_files\/areas\/areas03_planet\/Fig1.jpg\" alt=\"null\" width=\"620\" height=\"570\"><\/a><br \/>\n<span style=\"font-size: 10pt\">A photo of a Fe, Al-bearing MgSiO3 bridgmanite single crystal synthesized at 25 GPa and 2000 K.<\/span><\/td>\n<td style=\"width: 50%\"><a href=\"https:\/\/www.elst.okayama-u.ac.jp\/up_load_files\/areas\/areas03_planet\/Fig2_J.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone\" src=\"https:\/\/www.elst.okayama-u.ac.jp\/up_load_files\/areas\/areas03_planet\/Fig2_J.jpg\" alt=\"null\" width=\"652\" height=\"488\"><\/a><br \/>\n<span style=\"font-size: 10pt\">An analogous magma &#8211; H2O fluid system experimentally reproduced at 700MPa, 530 \u00b0C in a diamond anvil cell.<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<table class=\"el_table_fix\" style=\"width: 100%;height: 168px\">\n<tbody>\n<tr style=\"height: 168px\">\n<th style=\"width: 20%;height: 168px\"><a href=\"https:\/\/www.elst.okayama-u.ac.jp\/en\/wp-content\/uploads\/sites\/2\/2026\/01\/255760b9878851b6809d4cb17dad3d17.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-3455\" src=\"https:\/\/www.elst.okayama-u.ac.jp\/en\/wp-content\/uploads\/sites\/2\/2026\/01\/255760b9878851b6809d4cb17dad3d17.jpg\" alt=\"\" width=\"151\" height=\"201\"><\/a><\/th>\n<td style=\"width: 80%;height: 168px\">\n<ul>\n<li style=\"list-style-type: none;font-size: 12px;margin-left: -20px\"><span style=\"font-size: 12pt\">Assoc. Prof. ONODERA Keisuke<\/span><\/li>\n<li style=\"list-style-type: none;font-size: 12px;margin-left: -20px\"><span style=\"font-size: 12pt\">E-mail: konodera<span id=\"content_ousdb1_lp$002fitem$005b1$005d$002fsys_mail\">&nbsp;<\/span><span id=\"content_ousdb1_lp$002fitem$005b1$005d$002fsys_mail\">&nbsp;<span style=\"color: #0000ff\">[at]<\/span> <\/span>okayama-u.ac.jp<\/span><\/li>\n<li style=\"list-style-type: none;font-size: 12px;margin-left: -20px\"><span style=\"font-size: 12pt\">\n<p><\/span><\/li>\n<\/ul>\n<p><span style=\"font-size: 12pt\"><a class=\"el_linkBtn\" href=\"https:\/\/soran.cc.okayama-u.ac.jp\/html\/a532fefc26ea88b3d077bc38d49d4023_en.html\">Directory of Researchers<\/a>\u3000\u3000\u3000<\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>&nbsp; Our research target is planetary surface\/near-surface environments to understand the past geological pr [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":0,"parent":150,"menu_order":176,"comment_status":"closed","ping_status":"closed","template":"template-layout_single.php","meta":{"footnotes":""},"class_list":["post-3111","page","type-page","status-publish","hentry"],"aioseo_notices":[],"publishpress_future_action":{"enabled":false,"date":"2026-05-30 02:07:09","action":"change-status","newStatus":"draft","terms":[],"taxonomy":"","extraData":[]},"publishpress_future_workflow_manual_trigger":{"enabledWorkflows":[]},"_links":{"self":[{"href":"https:\/\/www.elst.okayama-u.ac.jp\/en\/wp-json\/wp\/v2\/pages\/3111","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.elst.okayama-u.ac.jp\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.elst.okayama-u.ac.jp\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.elst.okayama-u.ac.jp\/en\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/www.elst.okayama-u.ac.jp\/en\/wp-json\/wp\/v2\/comments?post=3111"}],"version-history":[{"count":7,"href":"https:\/\/www.elst.okayama-u.ac.jp\/en\/wp-json\/wp\/v2\/pages\/3111\/revisions"}],"predecessor-version":[{"id":3462,"href":"https:\/\/www.elst.okayama-u.ac.jp\/en\/wp-json\/wp\/v2\/pages\/3111\/revisions\/3462"}],"up":[{"embeddable":true,"href":"https:\/\/www.elst.okayama-u.ac.jp\/en\/wp-json\/wp\/v2\/pages\/150"}],"wp:attachment":[{"href":"https:\/\/www.elst.okayama-u.ac.jp\/en\/wp-json\/wp\/v2\/media?parent=3111"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}