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单词 第四纪
释义 〔Holocene〕Of, belonging to, or designating the geologic time, rock series, or sedimentary deposits of the more recent of the two epochs of the Quaternary Period, extending from the end of the Pleistocene Epoch to the present. See table at geologic time 全新世的:属于、归于或指明在地质年表上第四纪后两世从更新世结束一直到现在岩石时期的泥沙时期 参见 geologic time〔Cenozoic〕Of, belonging to, or designating the latest era of geologic time, which includes the Tertiary Period and the Quaternary Period and is characterized by the formation of modern continents, glaciation, and the diversification of mammals, birds, and plants. See table at geologic time 新生代的:属于、隶属于或称呼地质史上最新的时代的,包括第三纪和第四纪,其特征为现代大陆的形成、冰川作用以及哺乳动物、鸟类和植物的多样化 参见 geologic time〔Devonian〕Of, belonging to, or designating the geologic time, system of rocks, or sedimentary deposits of the fourth period of the Paleozoic Era, after the Silurian and before the Mississippian or Carboniferous Period, and characterized by the appearance of forests and amphibians. See table at geologic time 泥盆纪的:归入古生代第四纪的地质时期的岩石系统或沉积矿床泥盆纪。处于志留记之后,密西西比纪或石炭纪之前,森林和两栖类的出现是其特征 参见 geologic time〔Pleistocene〕Of, belonging to, or designating the geologic time, rock series, and sedimentary deposits of the earlier of the two epochs of the Quaternary Period, characterized by the alternate appearance and recession of northern glaciation and the appearance of the progenitors of human beings. See table at geologic time 更新世的:属于或标志第四纪的两个时期中较早时代的地质时期、岩石系列和沉积矿床的,这一时期以互生外貌、北方冰蚀退缩和人类祖先的出现为特征 参见 geologic time
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