Deprecated: Assigning the return value of new by reference is deprecated in D:\nadm\history\init.inc.php on line 75 地質名人館
  • 館藏編號:NTUG011-T100311
  • 題名:Holocene
  • 作者:林朝棨
  • 藏品形式:稿本
  • 尺寸:210X297(mm)
  • 作成日期:1969
  • 簡述:p120
  • 內容:

    revision when new deposits and Cultural beds are discovered and more C^14-dating is made.
       B. Correlation
     C^14-dating and the eustatic movements are the criteria for making correlations of the ages and subages of the Holocene in Taiwan to the subdivisions of the Holocene at various places in the world. The correlation achieved are as follows:
     The Peishihian Age is equivalent to the age of the”Yoldian to Ancylus Oscillation” or the”Cochranto Oscillation”, or of the “Yoldian Submergence”and the “Ancylus Lake Emergehce”. In Europe, the age of this oscillation is approximately 10,300-8300 years B.P. At the beginning there were three or four times of eustatic swing between present-40m and -8m which nay be included in the major transgression during most of the period, or the Yoldia Subnergence (10,300-8700years B.P.).Then came the Aucylus Lake Emergence (8700-8300years B.P.)resulting in the Boreal Peat. The Early Subage (transgression) of the Peishihian Age may be equivalent to the Yoldia Subnergence and the Late Subage (regression)to the Ancylus Lake Submergene. The Peishihian Age may also be correlated to most part of the early age(ca. 10,000-7500 years B.P.)of the Corded Ware Cultural Age in Japan.
     The Lungkangian Age(ca. 8300-6500years B.P.) is equivalent generally to the age of the Hysdrobia Oscillation in Europe. During the Hydrobia Submergence of the North Sea, that occupied most part of this period, there were two or three times of eustatic swing between-15m and -10m. This Early Subage may also be equivaleut to the upper part of the Early Corded Ware Age the lower part of the Middle Corded Ware(7000-6500years B.P.)in Japan. The short Late Subage(regression)(7000-6500years B.P.)of the Lungkangian Age is equivalent to age of the Rhein Delta Emergence in Europe resulting in the Early Atlantic Peats. This Late Subage may also be equicalent to the middle part of rhe Middle Corded Ware Age in Japan. The Peishihian Age and the Lungkangian Age are together generally equivalent ti the Flandrian Transgression of Europe.
     The transgression of the Early Subage (ca. 6500-5000 years B.P.)of the Tainanian Age is equivalent to the world-wide Holocene major transgression, the Middle Littorina Transgression or the Older Peron Submergence. At the maximum of this transgression, sea level reached present+30m. This transgression of the Tainanian Age is equivalent to the Yurakucho Transgression of Japan with sea level at its peak reaching present +6m. Equivalent to this transgression are the ages of pollen chronology: the middle part of the Aluns-Quercus, Ulmus and Tilia (ca. 6100-4500Y.B.P.)in northern Europe, most part of the Maximum Warnth and Dryness(III) on the Pacific coast of North America, most of the middle part of the Maximum Warmth (Quercus, Ulmus and Tilia)or the upper part of the “Lower Quercus” in Sweden. The Numa Coral Beds(6160±120 C^14 years B.P.) of the Kwanto region in Japan were formed under the warm climatic conditions at the time of this Early Subage. Also equivalent in time to this  transgression are the transgression of the Middle Corded Ware AGE(6100-5500years B.P.)and the warm period at the end of the Corded Ware Age(7500-6100years B.P.)in Japan. According to the pollen analysis of the site of the Sun-Moon Lake (Tsukada 1966), the warmest period in the Holocene is 6000-5000years B.P. with temperature more than 2℃higher than at present.