摘要
主要研究地洼造山动力学过程,提出一种新的地壳增厚机制——地洼块断增厚作用,综合分析地洼期断裂混合岩化作用的动力来源以及地洼型混合岩建造的形成过程,建立一维断裂(块断造山)热构造模型,通过计算机数学模拟获得断裂带内不同深度的岩石PTt轨迹图,并论证地洼断裂混合岩化作用的三层结构模式。
In thit paper, the author studies Diwa orogenic dynamic processesand puts forward a new cruest-thickening mechanism——the Diwa block-faulting thickening process. On this basis, the author syntheticallyanalyzez the dynamic source of Diwa fracture migmatization and theforming process of Diwa migmatite formation, and founded an one-dimensional (block-faulft diastrophism) heat-structure model. The PTtdiagram of rocks at different depths along the fault zone has been givenby simulation with computer. The paper proves the three-layer texturemodel for Diwa fracture migmatization.
关键词
地洼
地壳
块断运动
热构造模型
Diwa
block-fault diastrophism
dynamics/heat-structure model
PTt Locus
