| 1. | The velocity difference between the two layers of the lower crust is not obvious
下地壳的两构造层速度差异不明显。 |
| 2. | ( 3 ) the mineral source was provided by both lower crust , upper mantle and upper crust , obviously from crust - mantle mixing
( 3 )矿田中的成矿物质的不仅来自于下地壳和上地幔，而且还来自于上地壳，具有壳幔混合特征。 |
| 3. | N2 - rich inclusions were first founded in ore area ; it may form by upper mantle or lower crust material during oxidation - devolatilization reactions
铁矿体被铜矿体包围，铁矿石被铜矿细脉穿插，说明铜矿化的形成晚于铁矿化。 |
| 4. | The formation of the enriched mantle ( em1 ) is attributed to the strong metasomatism - taking place between subducted yangtze lower crust and nc ( north of china ) ancient lithosphere
2 、火山岩、碱性超基性脉岩和基性脉岩(除少数外)都形成于大陆板内拉张环境。 |
| 5. | Studies on the metamorphic history of the granulites on a very old platform provide us some important information of the properties , status and forming processes of the lower crust and forming mechanism of the early continent crust
古老地台麻粒岩的变质历史研究可以为我们深入了解下地壳性质，状态及形成过程，探讨早期大陆地壳的形成机制提供重要的信息。 |
| 6. | One is the effect of quick stretching of lithosphere , upwelling and temperature raising of upper mantle , the other is result of the flexibility discrepancy among upper , lower crust and lithosphere under crust during the lithosphere cooling
该运动以及渤海湾盆地在伸展裂陷阶段的多次构造运动说明渤海湾盆地呈现出幕式沉降过程，东营运动则具有更重要的动力学意义。 |
| 7. | Finally , some possible physical mechanisms , for example the coulomb stress - triggering mechanism , the dynamic stress - triggering mechanism and the lower crust and upper mantle flow deformation mechanism , which may generate these coseismic and post - seismic anomalies , are discussed
同时，还从库仑破裂应力触发、动态应力触发以及下地壳和上地幔流动变形机制等方面，对这些大震效应作了一些成因机理讨论。 |
| 8. | All of the mafic samples have age - corrected moderate enriched sr and enriched nd isotopic ratios and the felsic rocks span larger range in the initial sr and nd isotopic ratios than mafic volcanics , similar to isotopic compositions of lower crust of north china block
在sr - nd同位素组成上，中基性火山岩为中等富集的sr和低的nd同位素比值；中酸性火山岩的sr同位素比值总体较中基性岩高且变化大，类似华北陆块下地壳岩石的同位素组成特征。 |
| 9. | While there is no distict evidence to prove the tanlu fault ' s noted deep and dynamic behavior within the lower crust or even on the upper mantle . thus there still exists a necessary to research and check the understanding about the boundary ' s location and the dynamic background
作为一级构造单元分界线的红河断裂、怒江断裂是超壳断裂，而昌宁双江断裂显示为低角度铲式断层，中下地壳无与之对应的速度异常，可能意味着该断裂切割不深。 |
| 10. | Geologists and geophysicists have carried out substantial work on petrology , geochemistry , chronology and geophysics , et al . , which yields important reference material and constrains for explanations of questions , such as the delamination and exhumation mechanism for the lower crust , models of the rapid uplift of himalayan orogen and deep subduction of india - eurasia plate . while only a little has been done to study the eastern syntaxis at present
地质学家和地球物理学家已经对西构造结进行了大量的岩石学、地球化学、年代学和地球物理学等方面的研究，为解释下地壳的拆沉、折返机制，喜马拉雅造山带的快速隆升和印度-欧亚板块的大陆深俯冲模式等提供了重要的参考信息和约束条件。 |
