巻号一覧
33 巻 (1979)
- 6 号 p. 313-
- 5 号 p. 241-
- 4 号 p. 173-
- 3 号 p. 121-
- 2 号 p. 73-
- 1 号 p. 1-
33 巻, 3 号
選択された号の論文の8件中1～8を表示しています
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長谷川 力原稿種別: 本文
1979 年 33 巻 3 号 p. 121-128
発行日: 1979/05/25
公開日: 2017/07/26
ジャーナル オープンアクセスThe purpose of this report is to discuss the diurnal variation on the lapse-rate of air temperature in the vicinity of Yari-ga-Take in July and August, 1969. The air temperature(Ta) was expressed as a function of altitude(H). The results are summarized as follows: 1) The average lapse-rate of air temperature in July and August was 0.61℃/100 m. The maxmum rate (0.82℃/100 m) was observed on July 30 when it was cloudy, and the minimum (0.38℃/100 m) on July 9 when it was rainy. The lapse-rate of air temperature on rainy days tended to be within the range of 0.38-0.69℃/100 m. The lapse-rate on cloudy days varied between 0.52℃/100 m and 0.82℃/100 m. On fine days, it is nearly equal to the monthly average, ranging from 0.51℃/100 m to 0.66℃/100 m. 2) The lapse-rate of air temperature is influenced considerably by the wind direction. Immediately after continuous S wind direction in the Matsumoto meteorogical observatory, the lapserate of air temperature becomes even larger value, but the lapse-rate in NW or NNW wind direction and calm indicated small value. 3) The diurnal variation on the lapse-rate of air temperature in July and August was shown in Fig. 5. The maximum rate (0.97℃/100 m) was observed at 12 o'clock on July 30, and the minimum (0.30℃/100 m) at 6 o'clock on July 9.抄録全体を表示PDF形式でダウンロード (761K) -
設楽火山岩団体研究グループ原稿種別: 本文
1979 年 33 巻 3 号 p. 129-136
発行日: 1979/05/25
公開日: 2017/07/26
ジャーナル オープンアクセスThe stratigraphy of the Neogene Shidara volcanic rocks distributed in the Shidara district of Central Japan, were studied. The volcanostratigraphic sequence of these rocks is as follows in ascending order; Oro formation: mainly rhyolite and pitchstone lavas Oshimagawa formation: mainly rhyolitic and dacitic welded-tuffs Myojinyama formation: mainly porphyritic dacite and andestite lavas Kada formation: mainly rhyolitic welded-tuffs Horaiko formation: mainly rhyolite and pitchstone lavas and pyroclastic rocks Shidara volcanic rocks are composed mainly of welded-tuffs, and they seem to be eruptive materials on the land surface. Intermeditate and basic rocks are found only in Myojinyama formation and appear as dyke rocks of the last volcanism in the district. Most of the Shidara volcanic rocks are distributed within the Shidara basin. structure, and form a part of it. In Kada area, however, volcanic rocks of the Kada formation fill up an independent collapse basin and show a horizontal structure. The basin structure are presumed to be due to a kind of volcanic depression before dyke rock intrusions. Dyke rocks are composed of rhyolite, basic andesite, and basalt. They constitute dyke swarms arranged in the direction mainly of N-S and NE-SW.抄録全体を表示PDF形式でダウンロード (1073K) -
京都市西北山地の中・古生界の岩相と地質構造丹波地帯研究グループ原稿種別: 本文
1979 年 33 巻 3 号 p. 137-143
発行日: 1979/05/25
公開日: 2017/07/26
ジャーナル オープンアクセスSince 1967, many Triassic conodont fossils were discovered from many localities in Japan, where had been supposed to be composed of the Paleozoic formations. As to the Tamba Belt, the Tamba Group had been recognized as a whole to be the Carboniferous to Permian age (SAKAGUCHI 1962; TAMA BELT RES. GROUP, 1971). On the otherhand, sporadic occurrences of the Triassic fossils had been noticed (Halobia and Triassic conodonts by NAKAZAWA and NOGAMI, 1967, and Monotis by SHIMIZU et al., 1967). In the Ashimidani valley of the northwestern hills of Kyoto City, many Upper Triassic conodont fossils were found by YOSHIDA and WAKITA(1975), and this locality is apparently in lower horizon than the one of Permian fusuline fossil occurring. Our Group intended to clarify the stratigraphic relation between the two formations of the fossils in this area. In this report, geology of this region is treated. Lithologic nature of clastic rocks, bedded cherts and carbonate rocks are described. So-called "Schaistein" formation are described in detail their lithofacies, occurrences and petrographic natures, and also differences of petrographic natures between the horizons (Permian and Triassic) are suggested. The Permian conodont fossils are found near the occurrence of fusuline. The Permian and the Triassic beds are noticed to be in conformable relation. Many faults develop extending in the direction of WNW-ESE, and the Triassic formations are repeated by these faults. Occurrences and horizons of conodont fossils will be described in the next report.抄録全体を表示PDF形式でダウンロード (2393K) -
木崎 甲子郎原稿種別: 本文
1979 年 33 巻 3 号 p. 144-151
発行日: 1979/05/25
公開日: 2017/07/26
ジャーナル オープンアクセスThe marginal area of western Kyushu represents a peculiar situation from the geological as well as structural points of view. The Nagasaki metamorphic rocks of high pressure-low temperature type, have long been controversial on their tectonic situation since the "Nagasaki-Dreiecke" was proposed by RICHTHOFEN in 1903. The structure of the metamorphic rocks is revealed to be a superimposed fold system and characterized by thrust fault of the NE-SW trend in which the basement rocks of 400 m. y. were brought up accompanied by the thrust movement. This movement rotated anticlockwise the axis of the sedimentary basins of the Late Cretaceous age (Himenoura Group) in association with the uplift of central Kyushu. Thus, started a new tectonic situation for the Ryukyu arc formation in the Late Cretaceous time. The Paleogene formations of western Kyushu are deformed more or less to show dome-basin structure and faults. The principal directions of the faults are the NE-SW and NW-SE which occurred successively so that the structure is characterized by "Twilled Structure" signifying the superimposed structure. The older NE-SW direction has been modified by the NW-SE direction to form the twilled structure in Oligocene to the Middle Miocene time. The "Hokusatsu Bend" which represents an oroclinal deformation of the Shimanto belt at southwestern Kyushu, has been accomplished by this time. The Kyushu Western Marginal Shear started to activate in the Late Cretaceous and culminated in the Middle Miocene at the contact zone between the Honshu and Ryukyu arcs along which the Ryukyu arc shifted southwards.抄録全体を表示PDF形式でダウンロード (939K) -
君波 和雄原稿種別: 本文
1979 年 33 巻 3 号 p. 152-162
発行日: 1979/05/25
公開日: 2017/07/26
ジャーナル オープンアクセスIt is the purpose of the present paper to clarify the composition of the framework grains of the sandstones attributed to the Nemuro Group, and also to inffer the source rocks having been distributed around the "heimat" area of the sedimentary basin in which the Nemuro Group was deposited. The Nemuro Group is divided into the following eight formations, viz. Nokkamappu, Otamura, Monshizu, Oborogawa, Hamanaka, Akkeshi (lower, middle and upper parts), Tokotan and Kiritappu formations in ascending order. The coarse-grained clastic sediments contained in each formation except both Oborogawa and Kiritappu formations are analyzed in terms of its major mineral composition, heavy mineral assemblage, K-feldspar content and lithic fragment constituent. Furthermore, the sorts of pebbles or cobbles of the conglomerate intercalated in the Kiritappu formation are examined. The following conclusions are possibly introduced, as the result of the sedimentary petrographical investigations described above. 1) After the sedimentary basin had been constructed simultaneously with strong igneous activity, a large quantity of volcanogenic clastics was supplyed into and deposited in the basin. 2) Since the beginning of deposition of the Akkeshi formation, the sourse area which was lithologically composed of older sedimentary, granitic, volcanic and minor metamorphic rocks had been upheaved to be eroded. 3) The volcanic activity was comparatively violent in the east part of the heimat and became gradually felsic as it goes to the later stage of the deposition of the Nemuro Group.抄録全体を表示PDF形式でダウンロード (1120K) -
松岡 敬二原稿種別: 本文
1979 年 33 巻 3 号 p. 163-165
発行日: 1979/05/25
公開日: 2017/07/26
ジャーナル オープンアクセスPDF形式でダウンロード (360K) -
マルヒーニン E.K., ポドクレトノフ N.E., 青木 斌, 池谷 郁代原稿種別: 本文
1979 年 33 巻 3 号 p. 166-168
発行日: 1979/05/25
公開日: 2017/07/26
ジャーナル オープンアクセスPDF形式でダウンロード (545K) -
日本の第四紀層の14C年代(130)角田 清美原稿種別: 本文
1979 年 33 巻 3 号 p. 169-171
発行日: 1979/05/25
公開日: 2017/07/26
ジャーナル オープンアクセスPDF形式でダウンロード (329K)
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