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Volume 1, Issue 4
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Nobuo IKEBE1959 Volume 1 Issue 4 Pages 109-118
Published: January 30, 1959
Released on J-STAGE: August 21, 2009
JOURNAL FREE ACCESSTwenty-eight localities of fossil elephants (Stegodon and Elephas) have hitherto been known in the Pliocene-Pleistocene formations of the Kinki District, Central Japan. By checking these fossils and their geological occurrences, the writer obtained the following stratigraphical succession of these elephant-bearing horizons: Age in letters
Horizon I Stegodon elephantoides H2 (Pliocene)
Horizon II {Stegodon insignis sugiyamai Stegodon shodoensis shodoensis akashiensis I1 (Pliocene?)
Horizon III {Elephas namadicus naumanni Stegodon orientalis I2 (Low. Pleistoc.) Horizon IV Elephas namadicus naumanni J2 (Pleistoc.)View full abstractDownload PDF (1096K) -
Nobuo NAORA1959 Volume 1 Issue 4 Pages 118-124
Published: January 30, 1959
Released on J-STAGE: August 21, 2009
JOURNAL FREE ACCESSAs shown in tables, the mammalian and plant fossils found in Hanaizumi seem to be similar to those of the mammoth fauna at Ku-Hsiang-Tung, China (Manchoukuo) and of Egota plant fossil bed found in Tokyo, respectively. Such similarity may suggest that the fossils found in Hanaizumi are of late Pleistocene age. Furthermore, it should be noticed here that several bone fragments which must be considered to be artificial cuts were found in the same bed.View full abstractDownload PDF (1144K) -
Shôgo TAKAHASHI1959 Volume 1 Issue 4 Pages 125-129
Published: January 30, 1959
Released on J-STAGE: August 21, 2009
JOURNAL FREE ACCESSThe sedimentary depressions indicated in the isopachal map of the Uonuma stage of the Niigata Cenozoic deposits, excepting a certain part of them, run generally in parallel with the course of R. Shiano in Niigata Prefecture. From this point, it can be said that the origination of this river is mostly related with the main sinking belt which is shown as the sedimentary depressions in the Uonuma stage, and the subsequent changes in its course are not extricated from the sinking belt.
Though the depressions between Matto and Yoita are situated far from the present course of the R. Shinano, its course seems to be transfered by reason of the piracy of the R. Uono or the sinking of the post-Uonuma stage.
The Uonuma group presumably belonging to the Pleistocene is generally unconformable to the underlying formations and it differs not only in fossil contents and sedimentary facies but also in translocations and arrangements of the sedimentary basins and troughs from those of the Haizume and the Nishiyama stages. The amount of deposits, exclusive of the Uonuma basin, also decreased as a whole in comparison with the previous stages.
The facts just described indicate a considerable upheaval of the land of the Uonuma stage, but the present water-molded course of the R. Shinano did not originate from the erosion of the peneplain or the flat plane newly formed by the upheaval of the sea bottom.
It is clearly related with the sinking belt of the Uonuma stage.
The trend of the belt intersects those of the previous stages, such as Haizume, Nishiyama and Teradomari, so the course of the R. Shinano is different from those of the previous sinking belts.View full abstractDownload PDF (530K) -
Kazuyoshi IDA1959 Volume 1 Issue 4 Pages 129-135
Published: January 30, 1959
Released on J-STAGE: August 21, 2009
JOURNAL FREE ACCESSTwo burried hills, a wave-cut terrace and a drowned valley were found under Quaternary deposits of Port Yaizu, Pacific coast of Japan, by detailed examination of well-logs in the gas field.View full abstractDownload PDF (731K) -
Tokio SHIKAMA, Sosuke SUGIHARA1959 Volume 1 Issue 4 Pages 138-142
Published: January 30, 1959
Released on J-STAGE: August 21, 2009
JOURNAL FREE ACCESSDownload PDF (609K)
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