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东海北部表层沉积的孢粉、藻类分布规律、自西向东可分为五个孢粉组合区:1.松(Pinus)——栎(Quercus)——草本花粉组合区,2.松(Pinus)——栎(Quercus)孢粉组合区,3.柏(Cupressaceae)——松(Pinus)——禾本科(Gramineae)——刺球藻(Hystrichosphaera)孢粉组合区,4.蕨属(Pteridium)——松(Pinus)——刺球藻(Hystrichosphaera)孢粉组合区,5.栲(Castanopsis)——栎(Quercus)——松(Pinus)孢粉组合区。通过柱状剖面的孢粉、藻类研究,可分为A、B二层,B层为柏(Cupressaceae)——松(Pinus)——刺球藻(Hystrichosphaera)——禾本科(Gramineae)组合,反映冷凉干燥气候,为上更新世晚期沉积,当时海面大幅度下降,东诲大陆架大部分成陆。A层为栎(Quercus)——松(Pinus)孢粉组合,反映陆缘植被和目前相似,为全新世沉积。
The distribution of pollen and algae deposited on the surface of the northern East China Sea can be divided into five spore-pollen assemblages from west to east: 1. Pinus-Quercus-herbaceous pollen assemblage, 2. Pinus, - Quercus sporopollen assemblage zone, 3. Cupressaceae - Pinus - Gramineae - Hystrichosphaera sporopollen assemblage zone, 4. Pteridium, - Pinus - Hystrichosphaera sporopollen assemblage, 5. Castanopsis - Quercus - Pinus pollen assemblage. The pollen and algae in the columnar section can be divided into A and B layers, and the B layer is the Cupressaceae-Pinus-Hystrichosphaera-Gramineae assemblage, which reflects The cold and dry climate, which was deposited in the late Pleistocene, was greatly reduced by the sea level at that time. Most of the East China Sea continental shelf was landlocked. Layer A is a Quercus-Pinus sporopollen assemblage, which reflects that the marginal vegetation is similar to the present and is a Holocene sediment.