Jour. Geol. Soc. Japan, Vol. 118, Supplement, p , September 2012 JOI: JST.JSTAGE/geosoc/ doi: /geosoc

Size: px

Start display at page:

Download "Jour. Geol. Soc. Japan, Vol. 118, Supplement, p , September 2012 JOI: JST.JSTAGE/geosoc/ doi: /geosoc"

ふみなわしあし
5 years ago
Views:

1 Jour. Geol. Soc. Japan, Vol. 118, Supplement, p , September 2012 JOI: JST.JSTAGE/geosoc/ doi: /geosoc The old and newly defined Pliocene-Pleistocene boundary sites of the Kobiwako Group, central Japan Yasufumi Satoguchi 1, Chiyomi Yamakawa 1 and Keiichi Takahashi E 1 Lake Biwa Museum, 1091 Oroshimo-cho, Kusatu-shi , Japan Corresponding author: Y. Satoguch, satoguti@lbm.go.jp IUGS Keywords Quaternary, Pliocene, Pleistocene, widespread tephra, Plant fossil 1 25, JR JR Stop 1 N , E Stop 2 N , E Stop 3 N35 1 6, E Stop 4 N , E The Geological Society of Japan

2 IUGS Global boundary Stratotype Section and Point GSSP, 2010 Olduvai Subchronozone Calabrian 1985 GSSP Vrica e, 2010 Gelasian GSSP Gelasian IUGS, IUGS 1 Pleistocene Gelasian Monte San Nicola GSSP 2 Quaternary Neogene Gelasian 3Gelasian Pliocene Pleistocene, 2010 INQUA Neogloboquadrina atlantica 5 Homo, 2009, Gelasian Gauss/Matuyama Chronozone Olduvai Subchronozone 1980 Nagahashi and Satoguchi, 2007;, Ass Tamura et al., 2008 Gauss Chronozone 2.65 Ma, Eb- Fukuda, Ma Olduvai Subchronozone, 1996

72 Ginkgo Pseudolarix, 1966;, 1970;, 1991 Olduvai Subchronozone Momohara, 1994 2.6 Ma Hyodo, 2007 Fig.. Plant macrofossil assemblage including Metasequoia.

3 72 Ginkgo Pseudolarix, 1966;, 1970;, 1991 Olduvai Subchronozone Momohara, Ma Hyodo, 2007 Fig.. Plant macrofossil assemblage including Metasequoia. 1 Metasequoia glyptostroboides, cone, Yoshinaga, Konan city. 2 Glyptostrobus pensilis, cone, Yoshinaga, Konan city. 3 Juglans cinerera var. megacinerera, endocarp, Yoshinaga, Konan city. 4 Picea koribai, cone, Hatogahira, Koka city. Scale bar shows 1 cm., Metasequoia Glyptostrobus Sequoia Juglans cinerea var. megacinerea Picea koribai Liquidambar Fig , 2009 ; Fig ; Hayashida and Yokoyama, 1983 Gauss/Matuyama Chronozone Olduvai Subchronozone Kawabe, 1989 ; Fig. 3 Stop1 2, 1994; Fig. 3

4 73 Fig.. Stratigraphic occurrence of major plant macrofossils (based on Yamakawa, 2008)., 1991;, 1998 =

74 Fig.. Stratigraphy of a middle part of the Kobiwako Group (edited Yoshikawa and Yamasaki, 1998). Fig.. Fossil forest in the Asakuni site of the Yasu River, Konan city. Saegusa et al.

5 74 Fig.. Stratigraphy of a middle part of the Kobiwako Group (edited Yoshikawa and Yamasaki, 1998). Fig.. Fossil forest in the Asakuni site of the Yasu River, Konan city. Saegusa et al., 2005;, 2010; Aiba et al., Stop 2, 1993, 1960 Picea maximowiczii Menyanthes trifoliata, 1974;, 1983; 1988, 1993, 2008 Fig. 2 Cinnamomum Quercus Cyclobalanopsis gilva Pseudotsuga subrotunda Picea koribai Juglans cinerea ver. megacinerea Nyssa Sequoia Picea maximowiczii Menyanthes trifoliatapinus koraiensis, 2011; Fig. 4 Gauss Chronozone, 1995;, km Ma Yamakawa and Momohara, 2010, 1993 Olduvai Subchronozone, 1993;, 1993

6 75 Metasequoia Glyptostrobus, 2008 Fraxinus Carex Scirpus Cyperus Polygonum Cunninghamia Pseudotsuga Ficus cf. nipponica Eurya japonica Sequoia Pseudolarix Cyclocarya Juglans cinerea var. megacinerea 8, 2008; Yamakawa and Momohara, 2010 Picea Thuja Betula maximowicziana Pterocarya rhoifolia Menyanthes trifoliata Hemiptelea mikii 3 Yamakawa et al., 2008 Fig.. Geologic column of volcanic ash beds. Stop 1 25,000 N , E Ass; Tamura et al., 2008 Gauss Chronozone Gauss/Gilbert Chronozone Hayashida and Yokoyama, m, , m 1985Melosira solida 40 cm 5 cm 2 cm 21 cm 8 cm 20 cm Fig. 5 2 Glyptostrobus Chamaecyparis obtuse Thuja standishii Abies Picea Alnus Miki, 1957; Takaya, 1963;, 1981;, 2008 Stop 1 25,000 N , E a i 12 h Ass g c, 1998

7 76 Table. Petrographic properties of volcanic ashes. I Ma, 1995 h 70 cm Fig. 5, 1998 Stop cm cm cm cm cm 3 cm cm 6 cm cm cm 4 6 cm , cm 8, 1998 Metasequoia Glyptostrobus Salix Cornus Fraxinus Yamakawa and Momohara, 2010 Carex Scirpus Polygonum Dichocarpum Lapsana Sequoia Pseudotsuga Chamaecyparis pisifera Cunninghamia Picea Tsuga Cyclocarya Fagus microcarpa Eurya japonica Ficus cf. nipponica Sciadopitys Abies Cathaya, 2001 Stop 1 25,000 N35 1 6, E Olduvai Subchronozone Eb-Fukuda;, cm 25 cm 15 cm 3m 6 mm Unit A1 B Unit C, 1996; Fig. 5 Table 1 Unit A1

8 77 Unit B, 1996 Unit B Unit A1 Psudotsuga subrotunda Cunninghamia Fagus cf. microcarpa Alnus japonica Styrax japonica Metasequoia disticha Pinus thunbergii Picea Picea koribai, 1983 Metasequoia glyptostroboides Glyptostrobus pensilis Picea Thuja Hemiptelea mikii Betula maximowicziana Pterocarya rhoifolia Menyanthes trifoliata Yamakawa et al., 2008 Stop 1 25,000 N , E , m , m KR980 Olduvai Subchronozone Eb-Fukuda, 1999 Olduvai Subchronozone KR m 440 cm Eb-Fukusa 1999 Masuda et al. 2010Masuda et al Eb-Fukuda Eb-Fukuda C Kataoka and Nakajo, 2002 KR980 Masuda et al Amemori, K., Arakawa T., Kitagawa, A., Kohayakawa, T., Taga, M., Tajima, T., Tamura, M., Nishikawa, K. and Mitsuya, N., 1993, Res. Rep. Lake Biwa Mus. Project Office, no.1, Aiba, H., Baba K. and Matsukawa, M., 2010, A new species of Stegodon Mammalia, Proboscidea from the Kazusa Group Lower Pleistocene, Hachioji City, Tokyo, Japan and its evolutionary morphodynamics. Palaeontology, 53, Research Group for Natural History of Lake Biwa, ed., 1994, The Natural History of Lake Biwa Yasaka Shobo, 340p Endo, K. and Okumura, K., 2010, Quatern. Res., 49, Hayashi, T., 1974, Jour. Geol. Soc. Japan, 80, Hayashi, T., Yamasaki, H. and Kawabe, T., 1999, Res. Rep. Lake Biwa Mus., no.12, Hayashida, A. and Yokoyama, T., 1983, Paleomagnetic chronology of the Plio-Pleistocene Kobiwako Group to the southeast of Lake Biwa, Central Japan. Jour. Geol. Soc. Japan, 89, Hyodo, M., 2007, Terrestrial Records of the Latest Guss Cooling Event in Japan and North Central China. Quatern. Res. Daiyonki Kenkyu, 46, Ichihara, M., 1960, Earth Sci. Chikyu Kagaku, 49, Ichihara, M., 1966, Earth Sci. Chikyu Kagaku, 85 86, Ichihara, M., 1991, Urban Kubota, 30, Ichihara, M., Kamei, S., 1970, Kagaku, 40, Ichihara, M., Yoshikawa, S., Kamei, S. and Nashu, T., 1988,, Stratigraphic Subdivision of the Japanese Quaternary and its International Correlation, Mem. Geol. Soc. Japan, no. 30, Editorial Committee of Natural History of Anthropogene, ed., 2007, Natural History of Anthropogene, Kyoritsu Publ., 312p Kataoka, K. and Nakajo, T., 2002, Volcaniclastic resedimentation in distal fluvial basins induced by large-volume explosive volcanism: the Ebisutoge-Fukuda tephra, Plio-Pleistocene boundary, central Japan. Sedimentology, 49, Kawabe, T., 1981,,

9 78 Jour. Geol. Soc. Japan, 87, Kawabe, T., 1989, Stratigraphy of the lower part of the Kobiwako Group around the Ueno basin, Kinki district, Japan. Jour. Geosci. Osaka City Univ., 32, Kobiwako Research Group, 1981, Earth Sci. Chikyu Kagaku, 35, Kobiwako Research Group, 1983, Monog. Assoc. Geol. Collab. Japan, no.25, Kumai, H., 2006,, Paleolithic Research, no.2, Kumai, H., 2009, 50, Digital Book: Progress in Quaternary Research in Japan, Japan Association for Quaternary Research, CD-ROM, 6 7 Kumai, H., 2010, 2 Paleolithic Research, no.6, 7 15 Masuda, F., Saitoh, Y. and Satoguchi, Y., 2010, Depositional environments and a paleogeographic position for the Pleistocene basal part of the Karasuma Deep Drilling Core form Lake Biwa, central Japan. Quatern. Res. Daiyonki Kenkyu, 49, Matsuoka, C., Okamura, Y. and Tamura, M., 1991, Land and Life in Shaga,, Miki, S., 1948, Mineralogy and Geology Koubutsu to Chishitsu, 9, Momohara, A., 1994, Floral and paleoenvironmental history from the late Pliocene to middle Pleistocene in and around central Japan. Palaeogeography, Palaeoclimatology, Palaeoecology, 108, Nagahashi, Y., Satoguchi, Y. and Yoshikawa, S., 2000, Jour. Geol. Soc. Japan, 106, Nagahasi, Y. and Satoguchi, Y., 2007, Stratigraphy of the Pliocene to Lower Pleistocene marine formations in Japan on the basis of tephra beds correlation. Quatern. Res Daiyonki Kenkyu., 46, Nakayama, K., 1993, Res. Rep. Lake Biwa Mus. Project Office, no.1, Saegusa, H., Thasod Y. and Ratanasthien, B., 2005, Note on Asian stegodontids. Quatern. Intern., , Saito, T., Momohara, A. and Yamakawa, C. 2001, Cathaya Pinaceae Jour. Geol. Soc. Japan, 107, Satoguchi, Y., 2009,,,, 5Monograph on Geology of Japan, Vol. 5: Kinki, Asakura Publ., Satoguchi, Y., 2010, Quatern. Res., 49, Takahashi, K., 1998, URNAN KUBOTA, no.37, Takahashi, K. and Yamakawa, C., 1993, Res. Rep. Lake Biwa Mus. Project Office, no.1, 1 10 Takaya, Y., 1963, Stratigraphy of the Paleo-Biwa Group and the paleogeography of Lake Biwa with special reference to the origin of the endemic species in Lake Biwa. Mem. Coll. Sci. Univ. Kyoto, Ser. B, 30, Tamura, I., Yamazaki, H. and Mizuno, K., 2008, Characteristics for the recognition of Pliocene and early Pleistocene marker tephras in central Japan. Quatern. Intern., 178, Tanaka, M and Matsuoka, K., 1985, Bull. Mizunami Fossil Mus., no.12, Taruno, H., 2010, Quatern. Res., 49, Ueki, T. and Endo, K., 2010, 2009 Quatern. Res., 49, Yamakawa, C., 1993,, Echigawa Petrified Forest, Res. Rep. Lake Biwa Mus. Project Office, no.1, Yamakawa, C., 2008, Ph. D. Thesis, Chiba Univ., 74p Yamakawa, C., 2011,, A vital Lake-Searching out Lake Biwa, Bunichi Publ., Yamakawa, C. and Momohara, A., 2010, Latest Pliocene Fossil Forest in Yoshinaga, Konan. The 3th International Metasequoia Symposium, a guidebook to the field excursion Neogene fossil sites and Chamaecyparis forest in central Japan, Yamakawa, C, Momohara, A., Nunotani, T., Matsumoto, M. and Watano, Y., 2008, Paleovegetation reconstruction of fossil forests dominated by Metasequoia and Glyptostrobus from the late Pliocene Kobiwako Group, central Japan. Paleontol. Res., 12, Research Group of Fossil Footprints on Yasu River at the Asakuni, 1998, Fossil Footprints at River Yasu, Asakuni, Kosei Town, Shiga Prefecture, Central Japan Kosei Municipal Board of Education, 57p Research Group for the Fossil Footprints of Yasu-gawa, 1995, Res. Rep. Lake Biwa Mus. Project Office, no.3, Yoshikawa, Y., 1976, Jour. Geol. Soc. Japan, 82, Yoshikawa, Y., 1993, Res. Rep. Lake Biwa Mus. Project Office, no.1, Yoshikawa, S., Satoguchi, Y. and Nagahashi, Y., 1996, Kd38 Jour. Geol. Soc. Japan, 102, Yoshikawa, S. and Yamasaki, H., 1998, URBAN KUBOTA, no.37, 2 11 English translation from the original written in Japanese

地質調査研究報告/Bulletin of the Geological Survey of Japan

地質調査研究報告/Bulletin of the Geological Survey of Japan Hideaki Nagamori, Hiroaki Yoshikawa, Koji Hatakeyama, Masumi Terao and Tomotaka Tanabe (2005) Proboscidean footprint fossils from the Lower Pleistocene Okui Formation on the river bed of Chikuma River,