擴張洋脊 的英文怎麼說
中文拼音 [kuòzhāngyángjǐ]
擴張洋脊
英文
spreading ridge-
Amore 2001 has successfully investigated the gakkel ridge and arctic ocean in vicinity of its geological and geophysical nature, as well as the nature of sea ice and biology in this area. the preliminary onboard petrology and bathymetry results show that the mantle beneath the gakkel ridge with low temperature has only encountered very low degree partial melting during the spreading and there is no any direct relationship between the crust nature and the spreading rate along the gakkel ridge in any simple petrologic way. mantle temperature and fracture zone density also play a major role on the crust nature, besides spreading rate
對所取得資料的初步研究表明gakkel洋中脊之下的地幔僅經受了較低程度的部分熔融，具有較低的溫度。 gakkel洋中脊處的地殼性質和巖漿活動與擴張速率之間不存在任何直接的巖石學相關性，擴張而導致的巖石圈頂部的冷卻並不是決定洋脊處地殼性質的最重要因素。地幔溫度和斷裂帶的存在與否及其密度對地殼性質具有重要的影響意義。The sea floor is spreading away from the mid-ocean ridges.
海底正在從大洋中脊擴張開來。Through the systematic analysis and contrast studies on topographical environment characteristics of these typical regions, it is found that the hydrothermal activity only occurs under the circumstance of the particular topographical environment, though it distributes widely in the tensional tectonic environment, for instance, the mid - ocean ridges, transform faults zones, back - arc spreading basins and the modern marine craters regions
通過對典型熱液區地形環境特徵的系統分析和對比研究發現盡管現代海底熱液活動廣泛分佈在大洋中脊、轉換斷層、弧后擴張盆地等各種不同的張性構造環境及現代海底火山活動區，但也僅出現在特殊的地形環境條件下。These ophiolites may be originated from the small spreading oceanic ridges of back - arc or inter - arc restricted oceanic basins, and finally emplaced into the deep - sea sediments constituting the ophiolites in orogenic zones
蛇綠巖可能形成於孤后或孤間有限洋盆小擴張脊；最後侵位到深海沉積物中，形成了造山帶中的蛇綠巖。It is presented that the hydrous fluxing as well as adiaba tic decompression plays an important role in melting of morb - like mantle beneath marina trough. compared with basalts from other back arc basins, it concludes that the magma varies from morb - like to arc - like with the evolution ; during the earlier stage of evolution, there coexist the two morb - like and arc - like lavas, it may be the nature of the magma in back arc basins ( especially in the earlier stage )
綜合馬里亞納海槽和其他弧后盆地玄武巖的研究成果發現，弧后盆地特別是早期擴張的弧后盆地，其巖漿產物均具從似島弧型到似洋中脊型玄武巖的時空演化特徵；同時存在島弧型和morb型兩種熔巖，可能是弧后盆地（特別是早期擴張弧后盆地）巖漿作用的一個共同屬性。The rifts therefore represent divergent plate boundaries where seafloor spreading is taking place
這樣，大洋中脊就成為板塊分離邊界，海底擴張就發生在這里。It is further pointed out that simulation experiments combined with geology, petrology, geochemistry and geophysics ( especially for high resolution seismic technique ) in studying mantle ( hotspot ) - ridge interaction will play an important role in such reseaches as plume - ridge interactions
在肯定地幔柱假說的基礎上，對洋脊地幔柱（熱點）的模擬實驗以及三大洋中不同擴張脊與熱點相互作用的最新研究作了系統的介紹和評述，指出室內模擬實驗以及地質學、巖石學、地球化學和地球物理學（特別是高解析度的地震技術）的結合研究將是本領域研究的發展趨勢。Comparing them predicted fromgeological data in millions of yearsdisplays the present - day motion characteristics of the mid - atlantic ridge that the mid - ridge of the south atlantic, whose spreading is slowing down, spreads faster than the north atlantic, whose spreading is speeding up
（ 5 ）首次給出了大西洋中脊現今實測擴張運動速度，且南大西洋中脊擴張速度大於北大西洋中脊。與幾百萬年地質資料估算結果相比，南大西洋中脊在減速擴張，北大西洋中脊在加速擴張。分享友人