| 1. | Measurements of relative motion between ocean ridges and its analysis 大洋海岭相对运动的测定及其分析 |
| 2. | The pilot study on arctic mid - ocean ridge - introduction of amroe 2001 北冰洋gakkel洋中脊科学考察的初步认识- amore 2001简介 |
| 3. | Arctic mid ocean ridge 北冰洋洋中脊 |
| 4. | Seamounts , underwater volcanoes , rift valley , the mid - ocean ridge , constitute a rich world of the ocean floor 海底山脉、海底火山、裂谷、大洋中脊等等,构成了丰富的海底世界。 |
| 5. | Characteristics of trace and rare earth elements suggest that ophiolite originated from the setting similar to mid - ocean ridge 微量元素和稀土元素特征显示蛇绿岩形成于类似洋中脊的构造环境。 |
| 6. | The film follows a team of scientists as they dive to research mysterious hydrothermal vents on the mid - ocean ridge of atlantic ocean 观众将会跟随科学家深入大西洋中洋脊,研究该处奇特的热喷口。 |
| 7. | Jurassic and cretaceous , the marginal ocean basin was in the stage of ocean crust evolution and had a setting similar to mid - ocean ridge 侏罗白垩纪为洋盆洋壳演化期,处于类似洋中脊的构造环境。 |
| 8. | Since the size of the earth is essentially constant , new lithosphere can be created at the mid - ocean ridges only if an equal amount of lithospheric material is consumed elsewhere 因为地球的大小本质上是不变的,只有同等数量的岩石圈物质在其它地方被吞没,新的岩石圈才能生成。 |
| 9. | Two ree distributed pattern , lree - depleted and flat , which display a specific character of typical mid - ocean ridge tholeiite , indicate that primary magma may be derived from near primary or a typical large ion lithophile element ( lile ) - depleted mantle 岩石稀土元素配分模式可分为lree平坦型和lree亏损型两类,指示了其原始岩浆起源于近原始或典型的大离子元素亏损型的地幔,为典型的大洋中脊拉斑玄武岩的特征。 |
| 10. | The analysis of the geochemical and petrologic characteristics features shows that the assemblage of volcanic rocks is the series of middle ocean ridge basalt , ocean island basalt and ocean island andesite basalt , which implies that it is the relic of the ocean crust , i . e . typical ophiolites 通过岩石特征和地球化学分析,确定了盐边群荒田组火山岩组合为洋脊玄武岩、洋岛玄武岩、洋岛安山玄武岩系列,说明这是洋壳残片,即典型的蛇绿岩套。 |