巻号一覧
1958 巻 (1958)
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- 38 号 p. 1-
- 37 号 p. 1-
- 36 号 p. 5-
1958 巻, 36 号
選択された号の論文の11件中1～11を表示しています
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原稿種別: 付録等
1958 年 1958 巻 36 号 p. App3-
発行日: 1958/02/28
公開日: 2017/07/24
ジャーナル オープンアクセスPDF形式でダウンロード (85K) -
酒勾 純俊, 河内 晋平, 藤木 忠美, 小林 国夫, 稲垣 益次, 千野 光芳原稿種別: 本文
1958 年 1958 巻 36 号 p. i-4
発行日: 1958/02/28
公開日: 2017/07/24
ジャーナル オープンアクセスA set of splendid sorted polygons was found in the shallow depression on the ridge near Mt. Tomuraushi in the Central Highland of Hokkaido. The spot is located at 2 km north of the highest peak (2,141 m above m.s.l.) of Mt. Tomuraushi (43.5° ca. N; 142.75° ca. E), and is at the level of about 1,840 m in height. As has been known, TROLL published in 1944 his opinion that sorted polygons might be classified into two types, i.e. the polar type and the tropical type with respect to climatic features over the world. The diameters of the polygons on Mt. Tomuraushi vary from 1.0 to 1.5 m, therefore the polygons should be referred to the polar type of TROLL'S classification. Both types of sorted polygons, however, can be seen occurring side by side on the mountains in Japan, and the polygons of polar type are essentially on the level ground where water is enough to make soils like porridge. Water in the ground is probably an essential element in determining the size of the polygons. Several other examples in Hokkaido and Honshu are also shown in the photographs.抄録全体を表示PDF形式でダウンロード (2637K) -
井尻 正二, 藤田 至則原稿種別: 本文
1958 年 1958 巻 36 号 p. 5-13
発行日: 1958/02/28
公開日: 2017/07/24
ジャーナル オープンアクセスPreviously the writers (1949) described on the mode of dense occurrence of fossils in the Pleistocene Narita formation in Chiba Prefecture and stated: "In the fossil bed in broad sense, a fossil-rich part which is named as 'fossil enclosure' by the writers, is situated within the non fossiliferous deposits in irregular form. Such a mode of occurrence of fossils may originate from the contemporaneous deposition of fossils and inorganic detritus, lamina by lamina." In this paper, the writers compared the said fossil enclosure with the mode of occurrence of the fossils hitherto recorded. The genesis of the fossil enclosure resembles that of the biostrome of Cummings and Shrock (1928, 1932), and is distinguished from the bioherm of the same authors, although all of these grade abruptly into the non-fossiliferous parts of the strata. The category of the fossiliferous mass within the rocks which are called as fossil enclosure in broad sense is subdivided into two according to the condition of the laminae, namely biostrome and bioherm. The fossiliferous part of the biostrome is contemporaneous with the non-fossiliferous rocks in laminal unit, but that of the bioherm is not. The former is the tepee rock (core) of Gilbert and Gulliver (1895) and the so-called lens, of which the tepee agree with the fossil enclosure in narrow sense. The latter includes ball stone (crag ball) of Bulter (1939) and the so-called fossil reef. The heap, bank, channel deposits and the stromatolith of Kalkowsky (1908) remain unknown or as to their systematic position, owing to that they are not accompanied with detail description. The fossil mass due to differential melting of a fossil layer belongs to "Stylolite".抄録全体を表示PDF形式でダウンロード (1159K) -
中生代カニ化石Notopocorystesの進化今泉 力蔵原稿種別: 本文
1958 年 1958 巻 36 号 p. 14-18
発行日: 1958/02/28
公開日: 2017/07/24
ジャーナル オープンアクセス -
舞鶴地帯の層序と構造-その7中沢 圭二原稿種別: 本文
1958 年 1958 巻 36 号 p. 19-21
発行日: 1958/02/28
公開日: 2017/07/24
ジャーナル オープンアクセスThe Arakura formation, composed mostly of black shales and sandy shales more than 70m thick, is overlain disconformably by the Sakawan (≒ Carnian) Nabae group. The Arakura is referred to be earliest Carnian or Ladino-Carnian in age by the following animal fossils and from the stratigraphical view point: "Monophyllites" arakurensis NAKAZAWA MS., Monophyllites? sp., Halobia? sp., Palaeoneilo sp., Nuculopsis (Palaeonucula?) sp., Psioidea spp. α, β, Spiriferina sp.. "Monophyllites" arakurensis belongs probably to a new genus derived from the Monophyllites-stock like Mojsvarites. Psioidea sp. α resembles especially P. conjuncts (HECTOR) from the Oretian (≒ lower Carnian) in New Zealand. The Arakura is surely later in age than the Zohoin group, the type of the Fujinohiran, which is characterized by typical Ladinian molluscs such as Daonella kotoi, D. sakawana, Monophyllites cf. wengensis and Protrachyceras aff. archelaus, although the stratigraphical relation between the two cannot be ascertained. Therefore, the Arakura formation represents the new stage between the Fujinohiran and the Sakawan. Here, the Arakuran age (= earliest Carnian or Ladino-Carnian) is proposed.抄録全体を表示PDF形式でダウンロード (414K) -
平田 茂留原稿種別: 本文
1958 年 1958 巻 36 号 p. 22-24
発行日: 1958/02/28
公開日: 2017/07/24
ジャーナル オープンアクセス筆者はこの数年間,四国中部の秩父地帯の調査を続けて来たが,この間に,いくつかの重要な新事実を発見した.これに関連して,この地域の地質構造についても,ほぼ地質図を完成しているのであるが,ここではとりあえず,新しい化石産地について報告し,地質全般についての詳しい記述は他の機会にゆずりたい.抄録全体を表示PDF形式でダウンロード (597K) -
黒田 吉益原稿種別: 本文
1958 年 1958 巻 36 号 p. 25-27
発行日: 1958/02/28
公開日: 2017/07/24
ジャーナル オープンアクセスIn the metamorphic rocks of the Hitachi district, the writer found a strange fossil as shown in Fig. 2. The metamorphic rock, in which the fossil was found, consists of anorthite, calcite, chloirte, sericite, quartz, carbonaceous matter and ore minerals, and is associated with limestones. The fossil has not yet been determined. It is probably a new type in Japan, but it is fairly similar to "conodont" (personal communication of R. ENDO). It is noteworthy that the anorthite was found with the fossil, and also with chlorite and sericite.抄録全体を表示PDF形式でダウンロード (811K) -
中沢 圭二原稿種別: 本文
1958 年 1958 巻 36 号 p. 27-
発行日: 1958/02/28
公開日: 2017/07/24
ジャーナル オープンアクセスPDF形式でダウンロード (151K) -
山崎 正男原稿種別: 本文
1958 年 1958 巻 36 号 p. 28-35
発行日: 1958/02/28
公開日: 2017/07/24
ジャーナル オープンアクセスPDF形式でダウンロード (1156K) -
市原 実原稿種別: 本文
1958 年 1958 巻 36 号 p. 38-40
発行日: 1958/02/28
公開日: 2017/07/24
ジャーナル オープンアクセスPDF形式でダウンロード (766K) -
原稿種別: 文献目録等
1958 年 1958 巻 36 号 p. Misc1-
発行日: 1958/02/28
公開日: 2017/07/24
ジャーナル オープンアクセスPDF形式でダウンロード (58K)
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