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本文通过微体古生物和孢粉分析,岩相古地理研究和海岸地貌调查资料,探讨了青岛沿海地区20,000年以来的海陆变迁和古植被古气候的演变规律。在距今12,000—11,000年前,由于气候转暖,全新世陆架海侵使晚更新世末期的平原和盆地变成浅海和海湾。8000—5000年前出现高海面,5m等高线构成全新世海侵最大范围的古海岸线。自3500年以来,气温降低,海面逐渐下降至现代海岸线附近。
In this paper, the evolution of land and sea changes and the paleoclimatic evolution of ancient vegetation in coastal areas of Qingdao for 20,000 years are discussed through the analysis of the paleontology and sporopollen analysis, lithofacies paleogeography and the investigation of coastal landforms. In the period from 12,000 to 11,000 years ago, the Holocene Shelf transgression turned the plains and basins of the Late Pleistocene into shallow seas and bays due to warming of the climate. 8000-5000 years ago, the high sea surface, 5m contour line constitutes the largest area of the Holocene transgression of the ancient coastline. The temperature has dropped since 3500 and the sea level has gradually dropped to near the modern coastline.