書誌事項
- タイトル別名
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- Late Cenozoic volcanic activity of alkaline basalt in northern Syria
- シリア ホクブ ニ オケル シンセイダイ コウキ アルカリ ゲンブガン マグマ ノ カツドウ
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The northeastern part of the Bishri area, Syria consists of Neogene sedimentary rocks, Neogene- Quaternary volcanic rocks and Quaternary sediments of fluviatile and aeolian in origin. Volcanic eruptions took place in the area and lava flows and pyroclastic deposits covered the Bishri basement rocks in four places: the Al Treb, Zenobia-Halabiye, Mankhar Gharbi and Mankhar Sharqi volcanoes. The following ages were obtained from K-Ar dating performed on three basaltic lavas: 2.72±0.09 Ma B.P. for Al Treb, 2.60 ±0.08 Ma B.P. for Zenobia-Halabiye and 1.38±0.08 Ma B.P. for Mankhar Gharbi. Petrographical and petrochemical analyses indicate that the rocks from the older volcanoes are identified as basanite of the per-alkaline variety, whereas those of the younger volcano are identified as foidite of the hyper-alkaline variety. Foidite lava, terrestrially very rare in occurrence, characteristically contains phenocrystic nepheline crystals in which groundmass crystals of clinopyroxene and opaque minerals are embedded poikilitically. Identification of the basaltic rocks is significantly useful for Archaeological investigation, and this study could offer some petrographical and petrochemical parameters for that kind of identification.
収録刊行物
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- 名古屋大学博物館報告
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名古屋大学博物館報告 26 21-32, 2010-12-25
名古屋大学博物館
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詳細情報 詳細情報について
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- CRID
- 1390009224496040064
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- NII論文ID
- 120002958380
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- NII書誌ID
- AA11563168
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- HANDLE
- 2237/14675
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- NDL書誌ID
- 11053406
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- ISSN
- 13468286
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- IRDB
- NDL
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用可