| TRANSFORMATION OF CONTINENTAL AND OCEANIC CRUSTS AND GEOTECTURE OF THE WESTERN PACIFIC MARGIN |
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| 引用本文： | 张文佑,张抗. TRANSFORMATION OF CONTINENTAL AND OCEANIC CRUSTS AND GEOTECTURE OF THE WESTERN PACIFIC MARGIN[J]. 海洋学报(英文版), 1987, 6(1): 94-103 |
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| 作者姓名： | 张文佑 张抗 |
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| 作者单位： | Institute of Geology，Academia Sinica，Beijing，Institute of Geology，Academia Sinica，Beijing Institute of Petroleum Geology，Ministry of Geology and Mineral Resources，Beijing. |
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| 摘 要： | Three types of crust exist in the area studied. There was an assembled continent at the end of the Hercynian-Indosinian cycle. Since the Cenozoic the area has shown a trend of tension, thinning and oceanization in varying degrees, which is manifested in the creeping and obduction of the Asian continent as well as the spreeding and subduction of West Pacific Ocean, thus bringing about the continental rifts, maginal basins and arc-thrence systems in this area.Geotectonic cycle usually begins with a tensional phase and ends with a compressional phase. When tension predominates, various rifts can be formed on the continental crust and the crust is in the trend of oceanization. When compression predominates, the rifts disappears, the crust is in the trend of continentization and, in the end, folded mountain belts and geosutures can be formed. Thus, the crust is tending towards "maturatity" and thickening.
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| 收稿时间： | 1985-07-15 |
| 修稿时间： | 1986-05-27 |
TRANSFORMATION OF CONTINENTAL AND OCEANIC CRUSTS AND GEOTECTURE OF THE WESTERN PACIFIC MARGIN |
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| ZHANG WENYOU and ZHANG KANG. TRANSFORMATION OF CONTINENTAL AND OCEANIC CRUSTS AND GEOTECTURE OF THE WESTERN PACIFIC MARGIN[J]. Acta Oceanologica Sinica, 1987, 6(1): 94-103 |
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| Authors: | ZHANG WENYOU and ZHANG KANG |
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| Affiliation: | Institute of Geology, Academia Sinica, Beijing |
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| Abstract: | Three types of crust exist in the area studied.There was an assembled continent at the end of the Hercynian-Indosinian cycle.Since the Cenozoic the area has shown a trend of tension,thinning and oceanization in varying degrees,which is manifested in the creeping and obduction of the Asian continent as well as the spreeding and subduction of West Pacific Ocean,thus bringing about the continental rifts,maginal basins and arc-thrence systems in this area.Geotectonic cycle usually begins with a tensional phase and ends with a compressional phase.When tension predominates,various rifts can be formed on the continental crust and the crust is in the trend of oceanization.When compression predominates,the rifts disappears,the crust is in the trend of continentization and,in the end,folded mountain belts and geosutures can be formed.Thus,the crust is tending towards "maturatity" and thickening. |
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