oceanic crust 中文意思是什麼
oceanic crust
解釋
（洋殼）大洋地殼-
Owing to the difficulty of sampling beneath the deep oceans, the composition of the oceanic crust is not known with complete certainty.
由於在深海底下取樣困難，海洋地殼的組成就不完全確知。 -
Among different opinions, the most popular one is that the temporal and spatial distribution and evolution of the gangdise plutonic - volcanic belt are controlled by the northward subduction of the yarlung zangbo oceanic crust and the southward subduction of the bangong - nujiang oceanic crust
在眾多的觀點中較權威的觀點，是岡底斯巖漿帶的時空分佈與演化受控于雅魯藏布江洋殼和班公湖-怒江洋殼分別向北向南俯沖。 -
The authors put forward that daba - xiugugabu ophiolite belt originated from an ancient oceanic crust fragment of india continental northern marginal ocean basin, that was approximately synchronous with the formation and evolution period of the neo - tethys ocean
筆者提出該區蛇綠巖來源於印度大陸北緣洋盆的洋殼碎片，這個陸緣洋盆與新特提斯洋主體的形成和演化準同步。 -
Shrimp dating of carboniferous jinshajiang ophiolite in western yunnan and sichuan : geochronological constraints on the evolution of the paleo - tethys oceanic crust
古特提斯洋殼演化的同位素年代學制約 -
Zhang j. x. and meng f, c. 2006. lawsonite - bearing eclogites in the north qilian and north altyn tagh : evidence for cold subduction of oceanic crust. chinese sciernce bulletin, 51 ( 10 ) : 1238 - 1244
張建新，孟繁聰， 2006 .北祁連和北阿爾金含硬柱石榴輝巖：冷洋殼俯沖作用的證據.科學通報， 51 （ 14 ） （即刊） -
Combining the isotope geochronological results with the fieldwork observations, we could draw some conclusions as follows : the kunlun - bayan har terranes experienced the subduction of oceanic crust and collision somewhat earlier than the bayan har - qiangtang terranes, with only a very short interval in between and even the collisions overlapped partially in time
_ 2 ： 227 - 218ma ，巴顏喀拉和羌塘之間洋殼俯沖，以金沙江巖帶iag型巖漿侵位為標志。 _ 3 ： 217 - 212ma ，造山後期巖漿侵位。 -
Based on the regional geologic survey on the scale of 1 / 250 000, coupled with geological, geochemical and geophysical investigations in some key regions, this dissertation summarized the tectonomagmatic evolution and mineralization of the mid - gangdise area. with respect to tectonic evolution, the gangdise belt has experienced a multi - stage evolutional history since mesozoic, including oceanic crust subduction, arc - continent collision, intracontinental subduction and collision, and strike - slip and block uplift
論文以新一輪1 ： 25萬區域地質調查為基礎，在對關鍵區段重點解剖的基礎上，結合地球物理、巖石化學、地球化學、沉積作用、變質作用、構造演化和成礦作用的研究成果，對岡底斯中段的構造巖漿演化與成礦作了較系統的科學總結。 -
In the northern part, the oceanic crust occurring between the bayan har and kunlun terranes started subduction from south to north at about 243 ma, and did not stop until the development of post - orogenic pog - type granite in the bayan har terrane at 220 ma, thus illustrating the orogeny in the form of subduction and collision kept active for over 20 ma
以pog型花崗巖在巴顏喀拉地體內大量生成、在阿尼瑪卿巖帶中較多出現、在昆侖巖帶利金沙江巖帶少量出現為標志。期： 160 - 140ma ，斷裂系活動；金沙江、東昆侖剪切作用發生；部分巖體動力變質變形。
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