西北太平洋晚更新世以来的海平面变化研究

西北太平洋区域地质构造十分复杂,新构造运动异常活跃,地震与火山活动频繁。因此,晚更新世以来,本地区的海平面变化具有其典型特征。本区在全球海面波动的影响下,陆架发生过多次海进与海退的交替,本文对此有较详细的描述。大量资料表明,本区与全球海面变化有相似性,然而,泰区海平面波动被复杂的地壳构造运动所干扰。这一点对研究本区海平面的变化特征显得尤为重要,决不能忽视。

STUDY ON THE SEA LEVEL CHANGES IN THE NORTHWEST PACIFIC SINCE LATE PLEISTOCENE

The geological features of the northwest Pacific are very complicated. The new tectogenesis is very active and earthquakes and volcanic activities are frequent. Therefore the sea level changes have shown typical characteristics in this region since the late Pleistocene.Under the influence of global sea level evolutions, there have been alternations of marine transgressions and regressions over the continental shelf of this region. This artical describes these alternations in detail. A great amount of data indicate that there are similarities between the sea level changes of this region and those of the world. However, as the range of evolution of the sea level in this region is disturbed by the complicated tectongenesis, this influence has to be. considered in studying the characteristics of sea level changes in this region.