摘要
地球科学发展到今天,中外所积累的实际资料之多早已达到一个临界点,必然要从量变跃迁为理论认识上的质变。本文是这方面的一个尝试,力图把地球看成一个整体,提出以下五条地球内动因基本规律:(1)Na、K被幔汁的带入乃是地幔和地壳中产生各种类型岩浆的关键要素;(2)Na、K碱交代作用是整个热液作用中最重要的一个反应机制;(3)大地构造源于幔壳溃变**(是幔汁在起主要作用);(4)在地球的演化上,地壳乃是地幔亏损(depletion)部分的向上分化、搬家,地壳=原始地幔-亏损地幔;(5)地球深部的Na、K流(即幔汁主体)是来自威力更大的地核氢(H+、H、H2)流的萃取和驱动。
This paper attempts to summarize the achievements in geodynamic studies as a whole.Five dynamic principles of the Earth are put forward in this paper:(1) the introduction of Na and K to any kind of rocks is the key to magma genesis;(2) Na-and K-metasomatism is the most fundamental mechanism in whole hydrothermalism;(3) geotectonic movement results from mantle-crust asthenospherization,which is stimulated by Na-and K-metasomatism;(4) the evolution of the Earth is represented by two processes:① the depletion of the mantle and ② the formation of the crust.The crust is equal to original mantle minus depleted upper mantle;(5) Na-and K-fluids(namely,mantle ichors-HACONS) are derived from deep hydrogen(H^+,H,H2) flow extraction from the mantle.
出处
《地球学报》
EI
CAS
CSCD
北大核心
2009年第6期739-748,共10页
Acta Geoscientica Sinica
关键词
钠钾地球化学
幔汁
地球内动因
geochemistry of Na and K
mantle inchor (HACONS)
geodynamics