spreading ridge 中文意思是什麼
spreading ridge
解釋
擴張洋脊-
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。 -
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。 -
( 4 ) the collision zones of eurasia are very complicated due to the extrusion of continent lithospheres and the subduction between the oceanand continent lithospheres, and we analyze the mutual effects of different lithospheres and the crustal deformation features of collision zones ( 5 ) firstly we give the present - day spreading velocity of the mid - atlantic ridge
（ 4 ）系統分析了歐亞碰撞帶大陸與大陸和大洋與大陸兩種截然不同的巖石圈擠壓與俯沖對歐亞板塊的影響及其邊界地殼形變特徵。
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