华北地区上新世至第四纪断裂作用 关键词: 活动断裂作用型式;左旋扩展构造;华北地块 [gap=1740]Key words: active faulting pattern;left-slip propagation tectonics;North China block
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而在1.65亿年前,这种蜘蛛分布在被称为「北中国断块(North China Block)的小型大陆。塞尔登说:「在某一时期,这种蜘蛛的分布范围缩小到北美大陆的南部。
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the north china block 华北地块 ; 华北陆块
southern North China Block 华北地块南部
cratonization of North China Block 华北克拉通化
Many Pb-Zn-Ag deposits are found in the middle north margin of North China Block.
河北丰宁营房铅锌银矿床产于一近南北向的中型韧性剪切带中。
The appearance of the microspar veins is related with tectonic events of the southern margin of the North China block.
笔者认为嵩山地区微亮晶脉的出现应与华北块体南缘构造事件相关联。
It shows that recent strong earthquakes are mostly controlled by active faults with NW strike in the North China block region.
结果还表明,华北地块现今强震活动主要受nw走向断裂的控制。
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