重力梯度带 meaning in English
gravity gradient zone
Examples
- Paleogeographic data suggest the first occurrence of the taihangshan gravity lineament was initially formed during the early cretaceous , which is coeval with the peak of mesozoic magmatism in this region
岩相古地理分析说明太行山重力梯度带的雏形形成于早白垩世，与华北中生代岩浆活动的高峰相吻合。 - Given the fact that mesozoic magmatism was closely related to the lithospheric thinning , it is proposed that the diachronous lithospheric thinning is the main mechanism by which the taihangshan gravity lineament was formed
由于岩浆作用与岩石圈减薄作用密切相关，因此认为华北岩石圈减薄的时空不均一性是形成太行山重力梯度带的重要机制。 - Major , trace element composition and sr - nd - pb isotopes of the cenozoic basalts from yangyuan ( hebei province ) and datong ( shanxi province ) , which are located to west of the daxinanling - taihanshan gravity lineament , as well as mineral chemistry , major and trace element composition and sr - nd isotopes of mantle xenoliths from yangyuan are reported in this thesis
本文报道了大兴安岭-太行山重力梯度带以西河北阳原和山西大同新生代玄武岩的元素和sr - nd - pb同位素地球化学及阳原幔源包体的矿物化学、元素和sr - nd同位素地球化学，据此对华北克拉通西部上地幔的性质和过程进行了初步讨论。 - The comparison of cenozoic basalts and their mantle xenoliths from both sides of the taihangshan gravity lineament reveals that : ( 1 ) cenozoic basalts from western and eastern north china display opposite temporal trends , suggesting lithospheric thinning in western north china during the cenozoic and lithospheric thickening in eastern north china ; ( 2 ) the lithospheric mantle in the west is mostly late - archean to proterozoic in age , whereas that in the east has a modern age with minor proterozoic age ; ( 3 ) the crust mantle transition in the west is considerably thicker than in the east , probably due to different extents of magmatic underplating
摘要通过对比华北太行山重力梯度带两侧新生代玄武岩及其中幔源包体的成分，发现： ( l )华北东、西部新生代玄武岩具有相反的演化趋势，说明新生代以来西部岩石圈逐渐减薄，而东部岩石圈逐渐加厚； ( 2 )西部岩石圈地幔组成相对复杂，年龄多为晚太古代元古代；而东部岩石圈地幔组成相对单一，年龄多为现代值，少数为元古代； ( 3 )西部壳幔过渡带较厚而东部较薄，反映两地不同的岩浆底侵作用程度。