crustal extension 中文意思是什麼

crustal extension 解釋
地殼引張
  • crustal : adj. 外殼的〈尤指地球外殼〉。
  • extension : n 1 伸長，伸展，延長，延伸，擴展，擴大；廣度，范圍。2 延期；〈美國〉（房屋的）增建部分，（鐵路等...
  1. Integrating the ages of the mafic dikes and alkalic - ultramafic dikes in this paper, and the known data of mafic dikes and volcanic rocks, at least, there existed four episodes mesozoic crustal extension in shandong province, namely, 80ma, 100ma, 120 ma and140ma, which is similar to that of sc ( south china ), indicating that maybe the effect of the subductio

    但魯東地區在地殼拉張方面可能存在著與魯西地區不同的制約因素：即魯東地區存在拆沉作用和可能存在地慢柱的影響』 、而魯西地區可能受到了郊廬斷裂的左行走滑剪切和拉張活動的影響。
  2. Thus, the paper focuses on mineralogy, petrology, petrogeochemistry, isotopic chorology, and sr - nd - pb isotopes of the mafic intrusions and dikes in fujian province, se china. in addition, we also discussed the process of the plate subduction, mantle evolution, crust - mantle interaction, lithospheric thinning and extension, and the reaction for crustal extensi on in fujian province, se china. ( 1 ) daiqianshan mafic intrusion is situated along the changle - nanao fault, which intruded in the metamorphic rocks

    基於此，本文以中國東南部福建省的基性脈巖、巖體為研究對象，運用系統的礦物學、巖石學、巖石地球化學、同位素地球化學及同位素年代學證據，詳細論述了晚中生代中國東南部板塊俯沖、地幔演化、殼幔相互作用及巖石圈伸展減薄的地球動力學過程，探討了地殼拉張期次在福建省區域構造上的響應。
  3. Due to the subduction of pacific palte under eurasian in early cretaceous, at about 140 ma, fast collapse ( delamination ) took place and the mantle plume emerged, both resulted in the large - scale crustal extension in ludong

    3 、富集地幔源區（ em1 ）的產生是俯沖並熔融的揚子下地殼物質進入華北巖石圈地幔並與之相互交代作用形成的。
  4. Due to the west north direction subduction, fast collapse ( delamination ) may take place and the mantle plume emerged in ludong, in addition, owing to the subduction of pacific plate under eurasian, there appeared left - lateral advection and extension for tan - lu faults ( named as yishu fault in shandong ), and together with the collapse of yanshanian orogenic belts, all induced the crustal extension in shandong

    由於太平洋板塊對歐亞板塊的俯沖（ nw向） ，魯東地區巖石圈發生了快速拆沉減薄作用，同時魯東地區也可能會出現地幔柱的活動；另外，在太平洋板塊俯沖作用影響下，郯廬斷裂（山東稱沂沭斷裂）帶發生了大型左行走滑剪切和拉張活動。
  5. Recently, two important things need to be further addressed : ( 1 ) the time of the transition from compressional to extensional setting, and the geodynamics processes in se china ; ( 2 ) the relationship between polymetallic mineralization and lithospheric thinning and crustal extension

    近年來隨著研究的深入，逐漸凸顯出兩個重要的地質問題需要解決： （ 1 ）中國東南部晚中生代構造屬性的轉變時間及地球動力學演化過程； （ 2 ）多金屬成礦作用與巖石圈伸展減薄及地殼拉張的關系。
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