Choshi Geopark and Have Fun.★ Interconnected
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“The earth,” A geopark is “living creatures,” where we can Human activity and the “human learn everything History, culture, and industry activity” are Choshi Geopark and have fun.★ interconnected Living creatures Plants and animals The earth Choshi Geoprk related "Exhibitions" Choshi city youth and cultural hall “Choshi Geopark Exhibition room” 【Entrance fee】 free 【Hours】9:00 to 17:00 We will guide you 【Closures】every Monday(except if Monday is a holiday, it will be closed Tuesday.) National holidays(except for May 5th and November 3rd) through the entire park! 1046 Maejuku-cho, Choshi City, Chiba Pref., Japan 〒288-0031 Phone:81-(0)479-24-8911 ※All the fun of Choshi geopark in one place. Horizon Observatory 【Entrance fee】Adult ¥ 380, Elementary and Junior-high school children ¥ 200, Over 65 ¥ 330 【Hours】April to September, 9:00 to 18:30 October to March, 9:00 to 17:00 The last entry is 30 minutes before closing 【Closures】None 1421-1 Tennoudai, Choshi City, Chiba Pref., Japan 〒288-0024 Phone:81-(0)479-25-0930 ※Various fossils and ambers from Choshi can be viewed. Tokawa Mini Furusato Museum 【Entrance fee】free 【Hours】10:30 to 15:30 【Closures】Tuesdays and Wednesdays (except for holidays) Inquiries for Tokawa Mini Furusato Museum “Choshi Tourism Association” office Phone:81-(0)479-22-1544 ※Here, you can find about the history of Tokawa town. You can also view the collection of shellfish fossil researcher, Mr. Tomio Watanabe. Cho-Pi Geo-Cho (Choshi’s publicist) (Choshi Geopark PR ambassador) Editor:The Choshi Geopark Promotion Council office I was born in a cabbage field in Choshi. My job is to showcase Choshi and the Phone:81-(0)479-24-8911 FAX:81-(0)479-21-6622 If you want to know anything about Choshi Geopark. My hat is modeled URL http://www.choshi-geopark.jp/ Choshi, leave it to me, “Cho-pi.” after geological strata and Cape Scan this QR code Inubousaki lighthouse. My blue bangs Illustration: Chiba Prefectural Choshi High School to access the Choshi represent waves of the Pacific Ocean. (Hinano Jitsukawa and Risa Ishige) Geopark website. Choshi Port Tower · Kurohai Medogahana At Kurohae Fishing Port It is a 57.7m tower. At the foot of can see “conglomerate,” the tower, you can see a stratum formed from small rocks, and called “Medogahana,” which was blackish colored “andesite”, deposited around the time the formed through solidification Sea of Japan formed. (P7) of magma approximately 20 Yoyama million years ago. (P7) shell mound Choshi fishing port Choshi city youth and Wholesale Market 3 Soy-sauce Factories cultural hall Sennintsuka Yoyama shell mound The “Choshi Geopark Bronzite andesite Conservation Park ● Here are traces of human Soy sauce production has been Exhibition room”is the base activities from approximately flourishing in Choshi since the Edo facility of Choshi geopark, and Choshi 3500 years ago. (P13.14.15) Periods. (P17) precious fossils of Choshi are Port Tower (Inquiry for a factories tour) exhibited here. (cover) Choshi fishing port Choshi factory of Yamasa Corporation Wholesale Market 2 Medogahana Visit desk at 81-(0)479-22-9809 Higeta Shoyu Co. Ltd. Choshi, Choshi office at 81-(0)479-22-0080 Choshi fishing port Wholesale Market 1 Kurohai Moto-choshi Kasagami-kurohae Nakanocho station station station Higeta Shoyu Co. Ltd. Choshi station Kannon factory Yamasa soy-sause station Nishi-ashikajima factory Choshi city youth station and cultural hall Ashikajima Horizon Observatory station Cape Inubousaki · ・Mt. Atagoyama This hill is rock formed in the Lighthouse period that dinosaurs lived. Here, You can see the lighthouse From the observatory, you can and sedimentary rocks, which see the entire Choshi Peninsula. deposited in the shallow sea (P6. Cover) during the age of dinosaurs. You can also see many coastal plants in this region. (P7.11) Kimigahama station Byoubugaura Cliff It is a 10-km-long cliff eroded by waves. This cliff is made of Byoubugaura Cliff strata deposited in the ocean AEON mall approximately 3 million years Inubou Choshi Horizon Observatory ago. (P8) Mt. Atagoyama station Cape Inubousaki Climax forest of Laurel Inuiwa Rock · forest at Tokai Shrine ● Sengaiwa Rock These rocks were formed in Tokawa townscape ● Tokawa Houman Rocks the period that dinosaurs lived. Inuiwa Rock station Inuiwa rock looks like a dog. This symbol shows you points of (P6) interests within the Choshi Geopark. Sengaiwa Rock 3 2 Interesting. A lot of cabbages are harvested in Choshi too. What is a Geopark? These are all gifts from GEOPARK the earth. “Geo” means the planet Earth and What is a the ground, and “geopark” for of course we which Choshi was know what first certified in “Park” means. Chiba pref.? The logo for the Japanese Geoparks Network I get it!! During the Edo period, people were able to use the waterway of the Tone River, and that is why the soy sauce industry So everything is Is a geopark a park just for flourished. The climate is also because of the perfect for growing cabbage. earth of Choshi. geology and topography? What, really? Of course topography Tell me more! and geology are important, but that‛s The earth of not all. Choshi Fish is also a gift At the geopark, by One of the important roles of geoparks is to from the earth, understanding “the gifts preserve precious heritage of geology and right? from the earth,” you can really feel the charm of topography, and to pass it onto the future. the earth. That‛s right. For The gifts from They are sites example, soy sauce the earth? where you can has been made in understand “the Choshi since the gifts from the Edo periods, right? earth.” People have been living in Choshi since ancient times thanks to “the gifts from the earth.” Geopark activities are that everyone know about Choshi through blessings Right, from the earth. Through the geopark, We hope you‛ll fall in love with Choshi. it‛s famous! 5 4 1. When Choshi had been located further south ❷ CHOSHI’S How the earth of Choshi was formed? ★Events that occurred 130 million years ago The eastern shore GEOHISTORY of Choshi consists of rocks made of sand and ts of earth of Ch mud which had accumulated ven osh Cape Inubousaki has a in the ocean during 130 to E Paleozoic i precious geological Choshi city 110 million feature; hence, it is years ago. 150 million(?) years ago The properties of the ground designated as a beneath you are called “geology.” natural monument Mesozoic Cenozoic By studying “geology,” you can (nationally designated). 130 million years ago understand the history of the Here 20 million years ago earth. Cape Inubousaki 3 million years ago Nationally designated [ natural monument ] 1. When Choshi had been located further south ❶ Ancient After these rocks ★Events that occurred 150 million(?) years ago continent formed, the earth of Choshi moved several When dinosaurs were alive, the part of the earth that became Direction of Choshi was formed further south than the current location. plate movement thousand kilometers toward the north. CHOSHI Plates? The oldest rock(called Deep sea “Atagoyama Group”) was formed Shallow sea when overlying materials were Choshi 130 million years ago (Modified from Asahiko Taira, 1990) pushed against the continent and stripped-off as the oceanic plate subducted under the continental 2. When the Sea of Japan and the Japanese archipelago formed plate. (Bottom figure) ★Events that had occurred during 25 to 15 million years ago The Sea of Japan hadn’t always been there. During approximately 25 to 15 million years ago, the Approximately 15 to 14 million years ago Approximately 25 million years ago edge of the continent slowly Ocean had separated, created the Japanese archipelago and Plates are sheets of Continent the Sea of Japan. Oceanic plate rocks approximately When a plate is subducted, CHOSHI? 100 km thick that the top layer of the sediments is cover the Earth‛s stripped-off toward the continent. CHOSHI? surface. Plates move Mantle several cm per one year. Subducting under a continent Formation of the Sea of Japan Edge of the continent Continent The position of Japanese archipelago back then Ocean Modified from Nuclear Waste Management Organization of Japan (2004) Hence, the rocks like Houman Rocks Medogahana Inuiwa Rock, Islet off the coast of A cliff under the Choshi Sengaiwa Rock, and Nagasaki Port Tower Mt.Atagoyama are The rocks that formed The rocks that formed formed during that approximately 20 million from mud accumulated in time. years ago when lava the ocean approximately cooled 17 million years ago. Inuiwa Rock Mt. Atagoyama 7 6 3. When the Kanto region was an ocean Isn‛t the cliff along The gifts from the earth the south coast of the Choshi Peninsula Using the rocks and minerals of Choshi ★Events that occurred so beautiful? since approximately 3 million years ago ◆Kurohae tile There are many tile shops in the Kurohae district of Choshi. In When I look Choshi city the past, they were known as “Korohae fired tiles” and were a carefully, I can see well-known local specialty of Choshi. beautiful stripes. These tiles were made from high-quality clay as a raw material mined from the Kurohae district. These clays were once the Here mudstone portion of a geological body that became attached to Japan approximately 150 million(?) years ago (see p6). Kurohae tile At present, these clays have all been mined. This cliff is called ◆Choshi stone Byoubugaura Cliff. It had formed since approximately 3 The old stone walls of Choshi often have rocks with rough million years ago, when the almost surfaces. These rocks are called “Choshi Stone,” the sandstone Whetstone Kanto region was an ocean.