Lamprophyre from the Nakanogawa group in the central zone of Hokkaido, northern Japan

M. Owada; F. Nanayama; T. Shimura; Y. Osanai

doi:10.2465/ganko.87.62

Lamprophyre from the Nakanogawa group in the central zone of Hokkaido, northern Japan

M. Owada, F. Nanayama, T. Shimura, Y. Osanai

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

Lamprophyre (camptonite) was found in the southern most part of the Nakanogawa group. This camptonite occurs as dyke in pelagic sediment surrounded by basic tuff matrix. The camptonite is composed of alkali feldspar, kaersutite, salite, biotite, opaque minerals, apatite and aegirine-augite. K-Ar dating of the camptonite indicates an age of 95 Ma. The camptonite was emplaced in the environment of oceanic islands or sea mount during Cenomanian. -from English summary

Original language	English
Pages (from-to)	62-67
Number of pages	6
Journal	Journal of Mineralogy, Petrology and Economic Geology
Volume	87
Issue number	2
DOIs	https://doi.org/10.2465/ganko.87.62
Publication status	Published - 1992
Externally published	Yes

All Science Journal Classification (ASJC) codes

Environmental Science(all)
Earth and Planetary Sciences(all)

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10.2465/ganko.87.62

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title = "Lamprophyre from the Nakanogawa group in the central zone of Hokkaido, northern Japan",

abstract = "Lamprophyre (camptonite) was found in the southern most part of the Nakanogawa group. This camptonite occurs as dyke in pelagic sediment surrounded by basic tuff matrix. The camptonite is composed of alkali feldspar, kaersutite, salite, biotite, opaque minerals, apatite and aegirine-augite. K-Ar dating of the camptonite indicates an age of 95 Ma. The camptonite was emplaced in the environment of oceanic islands or sea mount during Cenomanian. -from English summary",

author = "M. Owada and F. Nanayama and T. Shimura and Y. Osanai",

year = "1992",

doi = "10.2465/ganko.87.62",

language = "English",

volume = "87",

pages = "62--67",

journal = "Journal of Mineralogy, Petrology and Economic Geology",

number = "2",

}

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T1 - Lamprophyre from the Nakanogawa group in the central zone of Hokkaido, northern Japan

AU - Owada, M.

AU - Nanayama, F.

AU - Shimura, T.

AU - Osanai, Y.

PY - 1992

Y1 - 1992

N2 - Lamprophyre (camptonite) was found in the southern most part of the Nakanogawa group. This camptonite occurs as dyke in pelagic sediment surrounded by basic tuff matrix. The camptonite is composed of alkali feldspar, kaersutite, salite, biotite, opaque minerals, apatite and aegirine-augite. K-Ar dating of the camptonite indicates an age of 95 Ma. The camptonite was emplaced in the environment of oceanic islands or sea mount during Cenomanian. -from English summary

AB - Lamprophyre (camptonite) was found in the southern most part of the Nakanogawa group. This camptonite occurs as dyke in pelagic sediment surrounded by basic tuff matrix. The camptonite is composed of alkali feldspar, kaersutite, salite, biotite, opaque minerals, apatite and aegirine-augite. K-Ar dating of the camptonite indicates an age of 95 Ma. The camptonite was emplaced in the environment of oceanic islands or sea mount during Cenomanian. -from English summary

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JO - Journal of Mineralogy, Petrology and Economic Geology

JF - Journal of Mineralogy, Petrology and Economic Geology

IS - 2

ER -

Lamprophyre from the Nakanogawa group in the central zone of Hokkaido, northern Japan

Abstract

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