摘要
闽省沿海陆区广泛分布有中-新生代火山岩系,为古岛弧构造的产物,是我国东南沿海裂谷带的一个组成部分。大地电磁测深工作结果发现,区内漳州、闽侯测点壳内高导层埋深特别浅,仅8km。经地质、地球物理资料的综合分析,并和世界大陆裂谷区作对比,认为本区深部电性分布反映了裂谷区的特点,可作为裂谷的佐证。
The Mesozoic and Cenozoic island arc volcanics are widely developed along the east coast ofFujian Province and are regarded by some geologists as part of the rift zone of the SoutheastChina coast. Magnetotelluric measurement does show low resistivity layers of crust existing inZhangzhou and Minhou in a depth of 8 km. This information helps to confirm the rift zone opin-ion as compared to the continental rifts in the world.
关键词
大地电磁测深
深部构造
电性分布
island arc
rift valley
crustal conductivity layer
upper mantle conductivity layer
