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太平洋板块为全球六大板块之一.板块学者K.V.Bogolepov与(?)称沟-弧-盆系为“地槽带”,把洋底划分为“裂谷构造带”、“大洋板块”、“火山隆起”、以及“海洋克拉通”等构造单元.张文佑教授在《中国及郊区海陆大地构造图》编纂工作开始时即指出:“太平洋板块不是一个统一的整体”.本文试图以断块学说为指导,对太平洋底的构造作一初步探讨.一、西太平洋过渡型地壳构造区根据海底地壳同相邻大陆的成生联系,西太平洋过渡型地壳构造区可划分为两大部分.这两个过渡型地壳构造区大体以赤道为界.赤道以北,呈以亚洲大陆为中心的环形,称环亚洲过渡型地壳构造区;赤道以南,则呈以澳大利亚大陆为中心的环形,称环澳大利亚过渡型地壳构造区(图1).
The Pacific Plate is one of the six major plates in the world, and plate scholar KV Bogolepov and (?) Said that the trench-arc-basin system is a “trough zone” and divides the ocean floor into “Rift Structural Belt,” “Ocean Plate, Volcanic uplift, ”and“ marine craton. ”At the beginning of the compilation of the“ Continent Map of the Land and Sea in China and its Suburb, ”Professor Zhang Wenyou pointed out:“ The Pacific plate is not a unified whole. ”This article attempts to use the theory of block-broken A preliminary study on the structure of the bottom of the Pacific Ocean I. Transitional crustal tectonic zone in the western Pacific According to the genetic relationship between the seabed crust and adjacent continents, the transitional crustal structural zone in the western Pacific can be divided into two parts: The transitional crustal tectonic zone is generally bounded by the equator.The north of the equator is a ring centered on the Asian continent, which is called the transitional crustal tectonic zone of the Asia-Pacific Ring; south of the equator, the ring is centered on the Australian continent, Transitional crustal structure (Figure 1).