Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Jun'ichi Ohki"'
Publikováno v:
Journal of the Japanese Association for Petroleum Technology. 73:517-530
Widespread exploration for oil and gas in the Niigata oil and gas fields, involving extensive drilling, has shown that Early to Middle Miocene volcanic rocks bearing the petroleum and natural gas are extensively developed, and they have been buried a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2f8ffbdf0c18cf3944c8195e1cd294ee
https://doi.org/10.3720/japt.73.517
https://doi.org/10.3720/japt.73.517
Publikováno v:
The Journal of the Geological Society of Japan. 109:345-360
関東平野東端の銚子地域に分布する中新統について,既報の資料および新たに得られた珪藻化石・K-Ar年代および古地磁気極性をもとに年代層序を総括し,従来の夫婦ヶ鼻層を夫婦ヶ鼻層(再
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4cbc0f163f1642880ea18890532c5c14
https://doi.org/10.5575/geosoc.109.345
https://doi.org/10.5575/geosoc.109.345
Publikováno v:
Journal of the Japanese Association for Petroleum Technology. 62:45-58
The underground volcanic activity before middle Miocene in the Niigata oil and gas fields are divided into three periods; late Oligocene (27-23Ma), early Miocene (19-16Ma) and middle Miocene (16-13Ma).These volcanism might have taken place in close a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f87ce9537f0cd259d053600c1aebc2fa
https://doi.org/10.3720/japt.62.45
https://doi.org/10.3720/japt.62.45
Publikováno v:
GEOCHEMICAL JOURNAL. 28:473-487
On the basis of Sr and Nd isotopic data for Tertiary to Quaternary volcanic rocks, the isotopic characteristics of the upper mantle beneath the NE Japan arc and genesis of Middle Miocene bimodal volcanism are discussed. Basaltic rocks from the back-a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e0f3f5bcd0ac169d889f746c7bfdd954
https://doi.org/10.2343/geochemj.28.473
https://doi.org/10.2343/geochemj.28.473
Publikováno v:
The Island Arc. 2:87-93
Recent advanced chronological studies for the Tertiary volcanic rocks from the Northeast (NE) Japan arc revealed three volcanic fronts which differed in temporal and spatial distribution. These fronts were (i) the Matsumae-Shizukuishi-Shiogama line o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9641767deb18577bef61235fc7005d17
https://doi.org/10.1111/j.1440-1738.1993.tb00076.x
https://doi.org/10.1111/j.1440-1738.1993.tb00076.x
Publikováno v:
JOURNAL OF MINERALOGY, PETROLOGY AND ECONOMIC GEOLOGY. 88:313-319
K-Ar ages were determined for Miocene Ryozen basalts from east of Fukushima City, Northeast Japan. The Ryozen basalts mainly comprise primitive basalt lava flows of the island arc tholeiite series with subordinate amounts of pyroclastic flows. Ten ba
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1b01d3085d77d1f8ebe05a25bd9f76ef
https://doi.org/10.2465/ganko.88.313
https://doi.org/10.2465/ganko.88.313
Autor:
Naoki Watanabe, Kenji Shuto, Kazuhiro Yamamoto, M. Yamamoto, Hiroo Kagami, N. Anzai, Jun'ichi Ohki, Tetsumaru Itaya
Publikováno v:
Mineralogy and Petrology. 49:71-90
Based on Sr isotopic data for Tertiary and Quaternary basaltic rocks from the NE Japan arc, relationships are discussed between the temporal variation of magma source characteristics and the opening of the Japan Sea. The basaltic rocks from the trenc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ed004f3da8a3e1457c119c564528ec5e
https://doi.org/10.1007/bf01162927
https://doi.org/10.1007/bf01162927