Northern Luzon Arc: Location and Tectonic Features from Magnetic Data off Eastern Taiwan

Chuen Tien Shyu, Mei Chang Chih, Shu Kun Hsu, Chengsung Wang, Boris Karp

研究成果: 雜誌貢獻期刊論文同行評審

11 引文 斯高帕斯(Scopus)

摘要

Magnetic data collected from 1989 to 1994 off eastern Taiwan were analyzed for tectonic interpretation. Unlike what was previously believed, the magnetic features indicate that the northern Luzon Arc extends to the east of the Coastal Range. Accordingly, most of the Coastal Range and its southward extension (the Huatung Ridge) could be regarded as a compressed subduction complex. The northern Luzon Arc has changed in direction from NNW-SSE to NNE-SSW at the Taitung Canyon between the Lutao and Lanhsu Islands. The collision between the Luzon Arc and the Tananao Complex, which occurs north of 23.5°N, corresponds to a hard collision (with little or without buffered material in between) as evidenced by the intensive occurrence of earthquakes. South of 23.5°N, the collision between the Luzon Arc and the Tananao Complex is a soft one, buffered by the compressing subduction complex. The magnetic boundaries of the northern Luzon Arc divide the earthquakes into two main provinces, corresponding to hard collision and soft collision. North of 22.7°N, the Luzon Arc has been subsiding, which is probably associated with the northwestward subduction of the Philippine Sea plate beneath the northeastern Taiwan area.

原文???core.languages.en_GB???
頁(從 - 到)535-548
頁數14
期刊Terrestrial, Atmospheric and Oceanic Sciences
7
發行號4
DOIs
出版狀態已出版 - 12月 1996

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