地球科学前沿

Vol.3 No.2 (April 2013)

大陆漂移的源动力—板块自驱动模式
The Source Power for Continental Drift —Plate Self-Drive Mode

 

作者:

梁光河 :中国科学院地质与地球物理研究所

 

关键词:

大陆漂移源动力板块运动深海沟火山喷发运动轨迹岛弧Continental Drift Source of Power Plate Motion Deep Trench Volcanic Eruption Movement Trajectory Island Arc

 

摘要:

基于作者提出的“岛弧海沟成因模式——板块漂移尾迹产生的海沟火山喷发”原理,首先从最简单的物理力学和沉积学原理出发,从理论上给出了一个板块自驱动模式,即大陆板块在划过洋壳后,留下薄弱洋壳,引起地下岩熔的上涌并产生向前的推力,在地下岩熔热力的驱动下向前漂移。然后通过几个实际例子印证该自驱动模式的普适性。最后给出了一个类比试验,说明大陆板块在大洋板块上是通过岩熔产生的热力不平衡所驱动的,就好比大陆板块自带了一个螺旋桨。

Based on the simple principle of “arc trench genetic model—the trench volcanic eruption by plates drift boundary” developed by the author, beginning from the simple physical mechanics and sedimentology principle, I give a theoretical plate self-drive mode. That is when continental plate slip across the ocean crust. It will leave a weak oceanic crust, and the underground lava upwelling will produce a force or power and generates forward thrust. So continental plates were driven by underground lava heat and caused forward drifting. Then several real examples confirm the self-drive mode is common on the Globe. At last an analog test was given which showed that continental plate in the ocean is driven by thermal, it looks like that the continental plate brought a propeller for itself.

文章引用:

梁光河 (2013) 大陆漂移的源动力—板块自驱动模式。 地球科学前沿, 3, 86-96. doi: 10.12677/AG.2013.32013

 

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