新潟県炭田の花粉分析学的研究特に, 岩船炭田の花粉分析
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概要
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1. The results of pollen analyses of the Miocene lignite samples obtained from the Daishima Formation of the Iwafune (Niigata Pref.) coal field are reported. 2. According to the pollen-analytical studies the plant grouping of Budo bed and that of Osudo bed were compared. Pollen grains of such extinct trees as Quercus and Taxodium are found predominantly in the Budo bed and Quercus, Pinus and Cunninghamia in the Osudo bed. The climate during deposition of the Budo bed is thought to have been warmer and drier than when the Osudo bed was deposited.
- 日本生態学会の論文
- 1962-06-01
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