gabbro造句
- The gabbro dikes are short .
輝長巖巖脈短。 - Study on fracture pattern of open surface - flaw in gabbro
輝長巖中張開型表面裂隙破裂模式研究 - Quartz gabbro diorite
石英輝長閃長巖 - Quartz - norite gabbro
石英蘇長巖 - Calc - alkali gabbro
鈣堿輝長巖 - Isotopic age of shijuli gabbro in north qilian mountain and its geological significance
北祁連山石居里輝長巖的同位素年齡及其地質意義 - Petrological characteristics and tectonic implications of the tahe gabbro in the northern part of the great xing ' an range
大興安嶺北段塔河輝長巖的巖石學特征及其構造意義 - Geochemical features and its tectonic implication of the jinningian wangjiangshan gabbros in the north margin of yangtze block
揚子北緣晉寧期望江山基性巖體的地球化學特征及其構造背景 - 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。 - The geochemical characteristics of gabbros from the jinshajiang ophiolitic melange indicate that they were derived from a mantle source different from that of volcanic rocks , which may be a product in the ocean rift in the earlier stage
東竹林蛇綠混雜巖中輝長巖地球化學特征表明,它與火山巖不同源,可能是洋盆裂谷初期的產物。 - It's difficult to see gabbro in a sentence. 用gabbro造句挺難的
- 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。 - Guided by theory and method of unit - superunit mapping in the granite area , study the lithology , lithochemistry , trace elements , and rare earth elements , er . of the wuzengsu gabbro body , and subdivide the body into four units
摘要借鑒花崗巖區單元超單元填圖理論方法,通過對烏增蘇輝長巖體巖石學、巖石化學、微量元素、稀土元素等特征的研究,將巖體劃分為四個單元。 - The lithologies of intrusive rocks were re - determined , for example , the rock previously named as diorite in southern area was renamed as gabbro , and the dike rock distributed along nnw as spessartite which was related to formation of the zhulazaga gold deposit to some extent
對礦區各類侵入巖重新厘定了它們的巖性特征,如礦區東南部原閃長巖重新確定為輝長巖,確定nnw向分布的脈巖為閃斜煌斑巖,且認為后者和朱拉扎嗄金礦的形成有一定的關系。 - It agrees with the fact that the gabbro is intruded by late ordovician granitic pluton . the pre - sinian basement strata exposed in the north kunlun massif are later archean - neoproterozoic milan group , changcheng system kaqiang group , jixian system liushui formation and qingbaikou system sulu formation
被蛇綠巖所分隔的昆北地塊上出露的前震旦紀基底地層為:晚太古代-新元古代米蘭巖群,長城系卡羌巖群,薊縣系流水巖組和青白口系絲路巖組。 - Based on an analysis of geochemical characteristics of rocks and trace elements as well as rare earth elements , this paper holds that they are products of crystallization differentiation of the same magma , that the major ore resource of this area is copper , and that gabbro - diabase is the main ore - bearing horizon
通過對巖石化學特徵和微量元素、稀土元素地球化學特徵的剖析,表明其是同一巖漿結晶分異的產物,本區主要礦產應為銅,輝長輝綠巖是主要的含礦層位。 - The mafic dikes also formed by the partial melting of enriched mantle , include gabbro , diabase ( distributing mainly in luxi ) and lamprophyres ( camptovogesite , odinite and hornblende lamprophyres ) ( mainly in ludong ) . for all the rocks , crustal contamination was absent when magma emplaced . 2
基性脈巖主要包括輝長巖、輝綠巖(主要分布在魯西地區)和煌斑巖(以斜閃煌斑巖為主,同時含部分拉輝煌斑巖和角閃煌斑巖) (主要分布在魯東地區) ,都為富集巖石圈地幔部分熔融的產物。 - 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。 - Geochronological , geochemical and sr - nd isotopic data are reported for the alkaline igneous rocks ( syenites and zhaibei aluminous a - type granite ) and chebu gabbro in southern jiangxi province . shrimp zircon u - pb dating results indicate that the quannan syenite , zhaibei a - type granite and chebu gabbro formed during the early yanshanian period
對贛南燕山早期的富堿火成巖(正長巖和寨背鋁質a型花崗巖)和車步輝長巖進行了詳細的年代學、元素和sr - nd地球化學研究。 - 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后期蝕變作用,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。 - The alkaline basalts in southern hunan are suggested to have formed by small degrees of decompression melting of the asthenosphere mantle during the initial extension . the transitional ( the chebu gabbro ) and tholeiitic basaltic magmas were generated by relatively larger degrees of partial melting of the mantle
在裂谷初期,軟流圈地幔的小比例部分熔融形成堿性玄武巖(湘南) ,在裂谷拉張作用比較強、地幔部分熔融比例比較大時形成贛南和湘南的過渡型(車步輝長巖)及拉斑質玄武巖。