ophiolite 中文意思是什麼

ophiolite 解釋
蛇綠巖 亦稱à礫蛇紋石
  1. The ophiolite massifs are composed of mantle peridotite that is mainly harzburgite and dunite, and lacked of crust magmatite within the typical ophiolite suite

    摘要該蛇綠巖帶的巖體由地幔橄欖巖組成，主要巖石類型是方輝橄欖巖和純橄欖巖，缺少典型蛇綠巖剖面中的洋殼單元。
  2. All these ductile shear zones are characterized by northward thrusting. the u - pb dating on zircons from the bedded gabbro of the qimanyuter ophiolite melange gives an age of 526 ? 1 ma ( early cambrian )

    在其曼于特蛇綠巖的層狀細粒輝長巖中獲得了鋯石u - pb年齡值為526 1ma （早寒武世） ，它被晚奧陶世花崗巖侵入。
  3. The pges abundance patterns of residual mantle rock with a peleo - subduction background is characterized by pd, pt depletion and ir, ru relatively enrichment, while the basalt and basic dyke by the processing of partial melt in the same background take an opposite feature of pd, pt enrichment and ir, ru depletion. the existence of fluid in the subduction zone increases the degree of partial melt on the one hand, and on the other, activates the activity of pd, pt compare to ir, ru, and thus reduces the pd ir and pt ru in residual mantle rock. the pges patterns for basalt and basic dyke from two carboniferous volcano zones to south qoltag and north turpan - hami basin, xinjing uigur autonomous region, take a shape of gentle positive inclined curve with lower pt and pd differentiation and lower pges. all these features are obviously different from that of basic dyke and basalt from typical ophiolite and therefore the author believe that their fluid - rich paleo - subduction zone environment can be ruled out

    古俯沖帶背景下的殘餘地幔巖的pges配分以pd ， pt明顯虧損和ir ， ru相對富集為特徵，而部分熔融產物的玄武巖和基性巖脈則呈現相反的ir ， ru明顯虧損和pd ， pt相對富集特徵。俯沖帶中流體的參與一方面增加了部分熔融程度，有利於pd ， pt從原始地幔進入熔融相另一方面，流體的作用使得pd ， pt相對于ir ， ru遷移活動性效率提高，造成地幔巖中
  4. Based on the 1 / 250000 mapping work of yutian and bolike sheets, an early paleozoic ophiolite melange has been found in western kunlun mountain and named as qimanyuter ophiolite melange ( qom ). this ophiolite melange is exposed along the north flank of kunlun mountains, from south of pulu - liushui village yutan county to south of nuer of ciler county

    在本論文工作所依託的1 ： 250000於田和伯力克兩幅區域地質調查工作中，發現了一條早古生代的蛇綠混雜巖帶，我們將其命名為其曼于特蛇綠混雜巖帶。
  5. Ultramafic rock fragments, which almost is altered to ophite, distributed in structural zone and displayed structural lens. so far, 9 fragments were discovered and mapped in nujinshan and bujing area ultramafic rock can be divided two kinds according to it ' s geochemical characteristics. one can be correlated with metaperidotite, which represented residual part that primary pyrolite underwent moderate partial melting, from some representative ophiolite melange in the world

    按超鎂鐵巖類的地球化學特徵可將其劃分為兩類：一類具有較高而穩定的mgo 、較低的al _ 2o _ 3 、極低的cao ， m f值為8 . 0 ? 8 . 4 ，按標準礦物組合進行分類可定為方輝橄欖巖，且均為fa _ （ 100 ） 、 en _ （ 100 ）的鎂質端元組分；可與世界上一些典型的蛇綠巖套中變質橄欖巖進行對比，代表了原始地幔中等部分熔融作用后殘余物。
  6. Ages of generation and subduction of shiquan river ophiolite : restriction from shrimp zircon dating

    測年對獅泉河蛇綠巖形成和俯沖的時間約束
  7. Their original rocks are volcanic rocks, epicontinental clastic sedimentary rocks, and ophiolite of volcanic and island arc tholeiitic series or calcium alkali series

    其原巖巖石類型有火山巖，陸緣碎屑沉積巖，火山、島弧拉斑系列或鈣堿系列火山巖、蛇綠巖等。
  8. Herzig p m, hnnington m d, scott s d, et al. gold - rich sea - floor gossans in the troodos ophiolite and on the mid - altantic ridge [ j ]. economic geology, 1991, 36 : 1747

    李文達，王文斌，孫南圭，等.長江中下游硫化物礦床氧化帶及鐵帽評價研究[ m ] .北京:地質出版社， 1980
  9. The results of combined internal mineral separates and whole - rock sm - nd isochron age for gabbro dikes from : luobusha, angren and xiubugabu in yarlung zangpo ophilite zone are 177ma, 166ma and 173ma respectively. the 4lar - 39ar step heating spectra of rikangba ophiolite suggest that its formation age is also isoma. it indicates that there was a stronger regionally inagmatism during middle - early jurassic, and the time of i75ma was the main period of the magmatic event of yarlung zangpo ophilite

    對鄔郁盆地嘎扎村組火山巖剖面的年代學研究表明，該區后碰撞期火山巖的~ （ 40 ） ar - ~ （ 39 ） ar年齡為12 ? 14ma ，侵入其中的花崗巖脈的~ （ 40 ） ar - ~ （ 39 ） ar年齡為10 . 84ma ，與岡底斯西段前人研究資料對比，認為岡底斯帶后碰撞火山巖時代有自西向東逐漸年輕的趨勢。
  10. The author suggests that for those kinds of samples like ophiolite which formed in the underwater environment and had very low potassium content, it should be better to determine their formation age by the sm - nd method as it is less sensitive to alteration. however, the step heating 40ar - 39ar spectra could often reflect the influence of later geological events on isotope system

    認為對蛇綠巖這類形成於水下環境，含鉀極低的樣品，其巖體的形成年齡宜選用對蝕變影響反應不明顯的sm - nd方法測定；但階段升溫~ （
  11. The lower member of typical ophiolite suit is exposed at outsides of the qimanyuter ophiolite melange and in between, there distribute the basalt, deep sea limestone and silicalites. these different litho - members contact to each other with ductile shear zones

    帶內蛇綠巖套下部單元出露于兩側，玄武巖和相關的深水灰巖、硅質巖等分佈於中部，各單元間均以韌性剪切帶接觸。
  12. We deduce that it is a relic old crust that was brought upwards during the formation of neo - tethyan ophiolite. the step heating 40ar - ' 9ar spectra show that during 100ma, luobusha ophiolite suffered intensely alternation, which affected distinctly the k - ar system ; during 771ma some basalt formed in the country rock of xiubugabu ophiolite ; during 55ma, the pillow basalt of rikangba ophiolite affected by a strong thermal event ; all the variety of ages illustrates possible impacts of the subduction - collision between india and eurasia. through dissecting mainly the gabbro of luobusa ophiolite and studying the 40ar / 39ar

    ~ （ 40 ） ar ~ （ 39 ） ar階段升溫年齡圖譜顯示， 100ma左右羅布莎巖體經歷了較強的後期蝕變作用，對其k ? ar體系造成明顯影響； 77 1ma休古嘎布巖體圍巖中形成玄武質火山集塊巖； 55ma日康巴巖體巖石枕狀玄武巖受到較強熱事件影響；這些~ （ 40 ） ar - ~ （ 39 ） ar年齡上的變化顯示了印度板塊與歐亞板塊俯沖?碰撞對該區的強烈影響。
  13. 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。
  14. Geochemical characteristics and origin of the luobusa ophiolite crust lavas in xizang, china

    藏南羅布莎蛇綠巖殼層熔巖地球化學特徵及成因
  15. Qimanyuter ophiolite melange crops out 1 - 3 km in width and extends ew - nee about 50 km, parallels to the kunlun mountains. qimanyuter ophiolite melange is composed mainly of serpentinite ( metapyrolite ), peridotite, bedded gabbro, grbbro, diabase sheet and pillow - like and massif basalt as well. associated sedimentary rocks with this ophiolite melange include silicalite, dark gray silicalite and thin - bedded limestone

    該混雜巖帶所包含的主要巖性單位包括：蛇紋巖（變輝橄巖） 、橄欖輝石巖、層狀輝長巖、輝長巖、輝綠巖席、枕狀、塊狀、杏仁狀玄武巖，與之共生的沉積巖為紫紅色硅質巖、深灰色硅質巖、薄層灰巖等。
  16. 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
  17. The internal mineral separates and whole - rock sm - nd isochron age for gabbro dikes from the dangqiong ophiolite is 373 ? 8ma, inferring a magmatic activity during late devonian, which end ( t ) = + 3. 3 suggests that its tectonic setting was probably oceanic island

    其nd （ t ） = + 3 . 3 ，認為其時形成環境為洋島，可能代表了新特提斯蛇綠巖形成時所攜帶的古老洋殼。
  18. According to tectono - metallogenic setting in combination with main mineral distribution and metallogenic types and ore - forming epochs in this orogenic belt, the authors used the theory of metallogenic series to divide the deposits of the north qilian early palaeozoic convergent epicontinental cu, pd, zn, w ( mo ), au, ophiolite metallogenic belt and the south qilian early palaeozoic epicontinental rifting cu, ni ( pt ), cr, au, rare elements and pyrite metallogenic belt into six series

    文章依據成礦構造環境，結合區域主要礦種分佈及其成礦類型和成礦時代等特徵，應用礦床成礦系列理論，將祁連造山帶北祁連早古生代匯聚陸緣銅、鉛、鋅、鎢（鉬） 、金、蛇蚊石成礦帶和南祁連早古生代陸緣裂解帶銅、鎳（鉑族） 、鉻、金、稀土、黃鐵礦成礦帶中的礦床劃歸為6個成礦系列。
  19. All in all, in carboniferous nujinshan ophiolite melange, petrographic category and their geochemical characteristics can be correlated with representative ophiolite melange in the world. this discovery offered a convincing evidence from petrology, it tes

    這一發現提供了一個令人信服的巖石學證據，它表明了昌寧?孟連構造帶的確是古特提斯洋的殘跡。
  20. Characteristics of trace and rare earth elements suggest that ophiolite originated from the setting similar to mid - ocean ridge

    微量元素和稀土元素特徵顯示蛇綠巖形成於類似洋中脊的構造環境。
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