福建泉州湾西部晚全新世孢粉组合特征及其古环境意义

来源 :微体古生物学报 | 被引量 : 0次 | 上传用户:caimingminggood
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通过对泉州湾西部QZDSZK02孔的沉积孢粉及AMS14 C进行分析,对泉州地区晚全新世古植被和古环境演化历史进行了恢复。其中,共鉴定出60种孢粉类型,主要以木本植物花粉和蕨类孢子为主,含草本植物花粉。根据孢粉特征及测年结果,划分出了4个孢粉组合带,恢复了本区植被演化和气候波动的4个阶段。探讨了孢粉来源,通过研究松属与温度的关系,得出泉州地区松属树种的兴衰与温度关系比较密切的结论。泉州湾晚全新世的海侵,可能是沉积物供给的减少或沿海地区构造的下降,不一定是海面上升的结果。 Based on the analysis of the sedimentary spores and AMS14C of QZDSZK02 in western Quanzhou Bay, the history of late Holocene vegetation and paleoenvironment evolution in Quanzhou was restored. Among them, a total of 60 species of sporopollen were identified, mainly of woody plants pollen and fern spores, including herbaceous pollen. According to the characteristics of sporopollen and the dating results, four sporo-pollen assemblages were identified, which restored the four stages of vegetation evolution and climate fluctuation in this area. The origin of sporopollen was discussed. Through the study of the relationship between Pinus and temperature, the conclusion is drawn that the relationship between Pinus species and temperature in Quanzhou is close. The transgression of late Holocene in Quanzhou Bay may be due to the decrease of sediment supply or the decline of the structure in the coastal areas, which is not necessarily the result of rising sea level.
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