div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imageimg data-url=gsi-home-page-oeoece-this-map-is-based-on-the-computer-generated-geologichtmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: GSI HOME PAGE - 国土地理院 · This map is based on the Computer Generated Geologic Map of Japan edited by Yamada et al Geological Survey Institute 1990 GEOLOGIC TIME SCALE loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer20220424085f22cdd48e9ed7462d3cb125html5thumbnails1jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=2Page 2button div class=ts-imageimg data-url=gsi-home-page-oeoece-this-map-is-based-on-the-computer-generated-geologichtmlpage=2 data-page=2 class=ts-thumb lazyload alt=Page 2: GSI HOME PAGE - 国土地理院 · This map is based on the Computer Generated Geologic Map of Japan edited by Yamada et al Geological Survey Institute 1990 GEOLOGIC TIME SCALE loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer20220424085f22cdd48e9ed7462d3cb125html5thumbnails2jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=3Page 3button div class=ts-imageimg data-url=gsi-home-page-oeoece-this-map-is-based-on-the-computer-generated-geologichtmlpage=3 data-page=3 class=ts-thumb lazyload alt=Page 3: GSI HOME PAGE - 国土地理院 · This map is based on the Computer Generated Geologic Map of Japan edited by Yamada et al Geological Survey Institute 1990 GEOLOGIC TIME SCALE loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer20220424085f22cdd48e9ed7462d3cb125html5thumbnails3jpg width=140 height=200 divdiv