| 据花粉分析试论郑州大河村遗址的地质时代和形成环境 |
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| 引用本文： | 严富华,麦学舜,叶永英.据花粉分析试论郑州大河村遗址的地质时代和形成环境[J].地震地质,1986,8(1):69. |
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| 作者姓名： | 严富华 麦学舜 叶永英 |
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| 作者单位： | 国家地震局地质研究所
(严富华，麦学舜)，国家地震局地质研究所(叶永英) |
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| 摘 要： | 本文通过对郑州市大河村遗址沉积进行系统的孢粉分析,结果表明,遗址沉积时期的大部分时间,为距今5740一4410年,气候暖和润湿,气温较今稍高,其时植被面貌属森林草原类型或森林类型。遗址沉积物的地质时代属第四纪的全新世
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| 关 键 词： | 大河村 遗址文化层 花粉分析 地质时代 木本植物花粉 形成环境 郑州 草本植物 阔叶植物 砂质粘土 |
GEOLOGICAL ACE AND ENVIROMENT OF THE DAHOCUN SITE,ZHENGZHOU,FROM SPORO-POILEN DATA |
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| Abstract: | The site under study is situated in northeastern Zhengzhou.Many pollen grains of arbor,shrub and herb have been found in sediments.Arboreous pollen grains are mainly of coniferales including the genera Pi-nus and Betula etc.,and sh-rub and herb pollen of Ephedra,Artemisia,Chenopodiaceae and Compositae.On th basis of obtained results it is believed that the Dahocun site was once covered with a forest steppe vegetetion;the climate had a change as the site formed.In the early stage the prevailing climate was warm and humider;in the middle stage,warm and moist;in the late stage,warm and drier.Poynological date and 14C age indicate local sediments as the Middle Holocene for the lower and middle parts and the Upper Holocene fer the Upper part |
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