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摘要: 由孢粉分析可知,宝秀盆地泥炭-褐煤自新第三纪上新世中期或早更新世初期至今,各个地质历史时期均有形成和积累;泥炭-褐煤堆积经历了温热-温暖-温凉的冷暖气候交替变化过程,相当于暖湿的大西洋期、温湿偏干的亚大西洋期和现代偏冷湿的山地气候。古植物变化为针叶林、阔叶林,针-阔叶混交林,落叶-常绿阔叶林和现在的稀疏灌丛和茂盛的草本植物。Abstract: Follow from the sporopollen analysis,the peat-lignite in Baoxiu Basin has been formed and accumulated from the middle Pliocene Epoch or early Pleistocene up to now.The forming and accumulating process of peat-lignite went through the palaeoclimatical changes which are alternate from hot to warm and cool,corresponding to the hot and humid Atlantic stage,the warm and humid and somewhat dry sub-Atlantic stage and the modern cool and humid mountainous climate.The vegetation are coniferous forest,broadleaf forest,coniferous-broadleaf mixed forest,deciduous-evergreen broadleaf forest and modern sparse shrub and luxuriant herb.
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Keywords:
- palynology /
- Tertiary Period /
- Quaternary Period /
- Palaeoclimatology /
- Yunnan province /
- Bao-xiu Basin
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