| 昆仑山北坡晚新生代含植物化石石灰华的孢粉组合及其古环境 |
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| 引用本文： | 黄赐璇,张青松.昆仑山北坡晚新生代含植物化石石灰华的孢粉组合及其古环境[J].地理学报,1991(3). |
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| 作者姓名： | 黄赐璇 张青松 |
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| 作者单位： | 中国科学院地理研究所，国家计委地理研究所 北京，北京 |
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| 摘 要： | 本文根据孢粉分析,推测古石灰华沉积时期的植被,是以蒿、藜为主的山地草原,散布有柳、栎、榆、桦等组成的落叶阔叶林块;古气候比现今温暖湿润,年平均气温约10—13℃,属暖温带半干旱气候,当时的海拔高度约1500—2000m。
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| 关 键 词： | 含植物化石石灰华 孢子花粉 古环境 |
A STUDY ON THE SPORO-POLLEN ASSEMBLAGE AND ITSPALEO-ENVIRONMENT AT THE PLANT-BEARINGCALCIC SINTER OF LATE CENOZOIC ERA ON NORTHERNSLOPE OF THE KUNLUN MOUNTAINS |
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| Huang Cixuan Zhang Qingsong.A STUDY ON THE SPORO-POLLEN ASSEMBLAGE AND ITSPALEO-ENVIRONMENT AT THE PLANT-BEARINGCALCIC SINTER OF LATE CENOZOIC ERA ON NORTHERNSLOPE OF THE KUNLUN MOUNTAINS[J].Acta Geographica Sinica,1991(3). |
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| Authors: | Huang Cixuan Zhang Qingsong |
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| Abstract: | In 1988, some plant-bearing calcic sinter were discovered and collected by the team of Scientific Expedition of Chinese Academy of Sciences to the Karakulun-Kunlun Mts. at 4600m. on the northern slope of middle Kunlun Mts. Its age is estimated to be from late Pliocene to early Pleistocene.
Sporo-pollen assemblage of the plant-bearing calcic sinter is dominanted by angiospermous pollen (91.4%). Arboreal and shrubs pollen occupies 23.2% in the total pollen. Broad-leaf trees' pollen are mainly Salix, Ulmus> Quercus and Betula. Herbaceous pollen occupies 75.4%y in which Artemisia and Chenopodiaceae are abundant and Xerophyte pollens occupy a high percentages. Sporo-pollen analysis data support that the age of the plant-bearing calcic sitner is from middle-late Pliocene to early Pleistocene. In that time Paleovegetation was mainly represented by mountain steppe (Artemisia, Chenopodiaceae....) mixed with deciduous broad-
Itaf forest (Salix, Quercus, Ulmus, Berula ...... in a warm and semidry climatic condition. Art
annual mean temperature is estimated about 10?13?C. Altitude of the place where plant-bearing calcic sinter grew at that time was probably 1 500-2 000 m. |
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| Keywords: | plant-bearing calcic sinter sporo-pollen paleo-environment |
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