The Kurohanayama basalt(Sendai, Japan) during the Late Miocene to Early Pliocene.
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- BAN Masao
- Department of Earth and Environmental Sciences, Faculty of Science, Yamagata University
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- OHBA Tsukasa
- Institute of Mineralogy, Petrology and Economic Geology, Tohoku Un iversity
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- HAYASHI Shintaro
- Department of Earth Science, College of Education, Akita University
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- UMEDA Koji
- Tono Geoscience Center, Power Reactor and Nuclear Fuel Development Corporation
Bibliographic Information
- Other Title
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- 中新世後期∼鮮新世前期に形成された,仙台市北西部の黒鼻山玄武岩
- Kurohanayama basalt Sendai Japan during
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Abstract
The Kurohanayama basalt has been referred to as a representative rock of Quaternary basalts in northeast Japan. There has been a significant amount of petrological studies on these rocks, however, the effused age of the Kurohanayama basalt has not been established yet.<br> In this study, we determined the K-Ar ages of rocks from the Kurohanayama basalt, and obtained 5.03±0.50, 5.2±1.2 and 5.64±0.31 Ma in age. From these data, we have shown that basalts of Kurohanayama effused some time between Late Miocene and Early Pliocene (4-6 Ma). Thus, the Kurohanayama basalt is Tertiary in age, and must be genetically separated from the Quaternary Funagata volcano.
Journal
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- JOURNAL OF MINERALOGY, PETROLOGY AND ECONOMIC GEOLOGY
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JOURNAL OF MINERALOGY, PETROLOGY AND ECONOMIC GEOLOGY 92 (5), 181-188, 1997
Japan Association of Mineralogical Sciences
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Details
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- CRID
- 1390282681210614784
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- NII Article ID
- 10002088841
- 30022306510
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- NII Book ID
- AN10047992
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- COI
- 1:CAS:528:DyaK2sXltlektbo%3D
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- ISSN
- 18813275
- 09149783
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- NDL BIB ID
- 4265975
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed