Thus, one vent field every 50 to 100 km could potentially account for the estimated high-temperature discharge at mid-ocean ridges. 因此,每50至100公里一个喷口区有可能说明中洋脊的估计高温释放量。 UN-2 Hydrothermal vents are ecosystems that occur at divergent plate boundaries (mid-ocean ridge...
文档标题《Shield volcanoes, built almost entirely of lava flows, occur at mid-ocean ridges and hot spots[盾状火山,内置的熔岩流几乎完全,发生在大洋中脊和热点]》,总页数为37页,主要介绍了与Shield volcanoes, built almost entirely of lava flows, occur at mid-ocean ridges and hot spots[盾状火山,...
Learn the mid-ocean ridge definition and see a mid-ocean ridge example. Find out what causes mid-ocean ridges and what happens at a mid-ocean ridge.
The presence of mid - ocean ridges is evidence of which plate movement? A. Plates moving sideways B. Plates colliding C. Plates moving apart 相关知识点: 试题来源: 解析 C。解析:大洋中脊是板块运动的重要证据之一。在大洋中脊处,板块是相互分离的,新的岩浆从地幔上升到地壳表面,形成新的岩石,从而...
Crustal accretion at mid-ocean ridges and backarc spreading centers: Insights from the Mid-Atlantic Ridge, the Bransfield Basin and the North Fiji BasinEulalia GraciaJavier Escartin
Ocean ridgesSeafloor spreadingAxesDiscontinuitiesGeochemistryHigh resolutionImagesLithosphereOcean bottomOceanic crustHigh-resolution images covering large areas of the seafloor reveal numerous discontinuities along the mid-ocean ridge. These discontinuities occur at a range of scales (10–1,000 km) and define...
Mid-ocean ridges do not form straight lines but are instead offset in many places by fracture zones, or transform faults. Fracture zones are thought to occur due to zones of weakness in the pre-existing continent before it was rifted apart. Most mid-ocean ridges are divided into hundreds of...
一、洋中脊(Mid-ocean ridges) 1、指贯穿世界四大洋、成因相同、特征相似的海 底山脉系列。全长6.5×104km ,占洋底面积的 … www.docin.com|基于8个网页 2. 中大洋脊 中大洋脊(mid-ocean ridges)中大洋脊(mid-ocean ridges)是什麽? tw.knowledge.yahoo.com|基于6个网页 ...
Mid-ocean ridges Abstract A map of the ocean basins (Fig. 5.1) shows that their most conspicuous topographic feature is the system of mid-oceanic ridges, the crests of which rise on average 1000–3000 m above the adjacent ocean floor. Such ridges extend through all the major ocean basins,...
Mid-ocean ridges: One more time, from the topNot Availabledoi:10.1038/44970Erik HauriNatureHauri, E., Mid-ocean ridges—One more time, from the top, Nature , 402 , 469–471, 1999.