volcanic rocks 中文意思是什麼

volcanic rocks 解釋
【礦物】火山巖。

  • volcanic : adj. 1. 火山（性）的；火山作用形成的，火成的。2. 有火山的，火山多的。3. 暴發性的，猛烈的，激烈的。adv. -ically
  • rocks : 財務窘迫
  1. The mafic dikes, volcanic rocks and alkalic - ultramafic dikes are terrestrial, and were all formed in the extensional settings. 3

    三類巖石在侵位結晶過程都不存在明顯的地殼混染。
  2. Therefore, based on the isotopic chorology, petrochemistry, geochemisty and sr, nd, pb isotope, the ph. d dissertation mainly studied some yanshanian mafic dikes, volcanic rocks and alkalic - ultramafic dikes in shandong province

    本論文主要從同位素年代學、巖石化學、地球化學和sr ? nd ? pb同位素方面對山東地區燕山期基性脈巖、火山巖和堿性超基性脈巖進行了系統研究。
  3. 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。
  4. By studying, the main conclusions have been achieved as follows : i. the volcanic rocks, as the result of the partial melting of enriched mantle, comprise calc - alkaline andesite and dacite and a few tholeiite

    通過研究，得出以下主要認識： 1 、火山巖為一套以鈣堿性安山巖為主，含少量拉斑玄武巖和英安巖。
  5. On the basis of the study on the petrology, trace element, and isotopic geochemistry, the primary magma of volcanic rocks can be divided into two series according to their originated rocks and degree of partial melting. one is the basanite - alkaline basalt - olivine tholeiite magma series, which are generated by partial melting from spinel iherzolite ; the other is nephelinite magma - alkaline picritic basalt magma, which are generated by partial melting of the garnet iherzolite

    巖石化學、微量元素、同位素地球化學證據都表明，華北、華南地區的火山巖根據源巖和局部熔融程度的不同，可以分為兩個原生巖漿系列：一個是源巖為尖晶石二輝橄欖巖，隨著局部熔融程度的增加，形成的碧玄巖巖漿-堿性玄武巖巖漿-橄欖拉斑玄武巖巖漿；另一個是源巖為石榴石二輝橄欖巖，隨著局部熔融程度的增加形成的霞石巖巖漿-堿性苦橄玄武巖系列。
  6. Distant effect of jurassic collisions of qiangtang terrane, lasa terrane and paleo - pacific land onto the eurasian land made east qinling - dabie mountains in a compressional circumstance for a long time, and suppressed its orogenic extension ; whereas, cretaceous late - collisional extension and appearance of west pacific trench - arc - basin system relieved east qinling - dabie mountains of external compression, instantly result in violent orogenic lithosphere delamination - extension and depressurized - calefactive melting, and consequently, led to the formation of large scale early cretaceous granitoids and intermediate - acidic volcanic rocks

    羌塘地體拉薩地體和西太平洋古陸在侏羅紀與歐亞大陸拼貼碰撞的遠距離效應使東秦嶺大別造山帶長期處于擠壓環境，伸展作用被抑制白堊紀的碰撞晚期伸展和西太平洋溝弧盆體系的遠距離效應使東秦嶺大別地區的外部擠壓消失，導致造山帶巖石圈迅速強烈拆沉伸展和減壓增溫熔融，從而形成大規模早白堊世花崗巖類和中酸性火山巖。
  7. The lower part formed in a littoral - epeiric environment, is a series of elastic rocks, partly contains carbonate rock and metamorphic basic volcanic rocks and the upper part formed in a bathypelagic environment is a series of sediments with chert, partly contains metamorphic basic volcanic rocks

    其下部為一套濱淺相碎屑巖，局部夾碳酸鹽巖、變質基性火山巖；上部為一套深水沉積巖系夾硅質巖，局部夾變質基性火山巖。
  8. Comparative studies of ree geochemical characteristics of various geologic bodies in the deposit indicate that the various ores and alkaline volcanic rocks contain abundant ree, specially lree the chondrite - normalized patterns of both ores and alkaline volcanic rocks show a strong lree enrichment and positive eu anomaly, in contrasting with the dolostones which show slight lree enrichment and moderately negative eu anomaly

    同期成礦流體從早期到晚期（塊狀礦石條帶狀礦石） ，輕重稀土分異變小，稀土總量增加，條帶狀礦石中稀土含量最高;礦石黃銅礦6345值變化在一0 . 3編到2 . 8 % 。范圍，顯示慢源硫特徵;菱鐵礦6 』 3c （ 8 % 。
  9. Magmatic consanguinity analysis of the muchen intrusion and xishantou formation volcanic rocks in zhejiang

    浙江沐塵巖體與西山頭組火山巖的巖漿同源性分析
  10. Volcanic rocks are characterized by wide distribution, complex lithology and lithofacies, and various eruptive forms. they are t ypically layer - or lens - like in shape and strike parallel to the principal structural lineaments in the region

    研究區火山巖分佈層位廣，巖性、巖相復雜，噴發形式多樣，呈層狀、似層狀展布，延伸方向與區域構造線走向一致。
  11. 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徵表明，它與火山巖不同源，可能是洋盆裂谷初期的產物。
  12. 2 both the hanging wall and the footwail rock of ore bodies are garnet biotite schist, protoliths are alkaline volcanic rocks ( tracyh andesite ). according to characteristics of trace elements assemblages and the setting of tectonics, these alkaline volcanic rocks were derived from the lower degree melting of metasomatic and enriched mantle ( eml ) in the initial stage of middle proterozoic epoch. they strongly enriched in large ion lithophile elements ( lile ), such as ba

    2 、礦體頂、底板圍巖（石榴石黑雲母片巖、鈉長黑雲母片巖等）的原巖為堿性火山巖（粗面安山巖） ，相對富集大離子親石元素ba 、 cs 、 rb 、 k 、 lree及貧zr 、 sr 、 ti 、 hf 、 hree ，為早元古代末期-中元古代早期交代富集地幔低程度部分熔融所形成的堿性火山巖。
  13. A study on lithology identification methods for volcanic rocks

    火山巖巖性識別方法研究
  14. In south china which lies in low latitudes, there are large quantities of granites and volcanic rocks, whose magnetic fields are different from those in other areas

    摘要處于低緯度的華南發育了大量的花崗巖和火山巖，其磁場特徵不同於其他地區。
  15. High - mg volcanic rocks approach the primitive mantle compositions, and their magmatic source is close to the composition of bse, derives from the lower mantle and formed by this type - mantle rocks " fractional melting highly ( > 25 % ). high - mg volcanic magma, formed in the axis of the emei mantle plume, underwent the crystallization differentiation of olivines and some pyroxenes ; some olivines reflect fair cumulus crystallization

    高鎂火山巖接近於原始巖漿的組成，巖漿源區與地球平均成分bse的成分特徵相近，起源深度為下地幔，為該地幔巖較高程度的部分熔融（ 25 ）而形成的。高鎂火山巖處于地幔柱的軸部，經歷了橄欖石及一定程度的輝石分異結晶，並且橄欖石顯示出一定的堆晶作用。
  16. The volcanic rocks belong to the cal - alkaline series and petrochemistry and geochemistry show characteristics of island arc volcanic rocks

    酸性熔巖及同質凝灰巖，屬鈣堿性系列，且高鉀富鋁。
  17. Detailed studies of the petrography, petrochemistry and geochemistry, indicate these volcanic rocks have high contents of aluminum and potassium and are intermediate to acid lavas and homoplasmic tufts

    通過對該組火山巖的巖石學、巖石化學和元素地球化學研究，確認該火山巖為中性。
  18. Characteristics of the early proterozoic volcanic rocks and its dynamic background of formation in the liaodong area

    遼東地區早元古代火山巖特徵及其形成的動力學背景
  19. The upper cretaceous jingzhushan formation in the biru basin, xizang consists of a succession of coarse - grained elastic rocks in the alluvial fan - fan delta depositional system, intercalated with intermediate - acidic volcanic rocks including dacite, andesite, quartz trachyandesite and rhyolite

    摘要上白堊統競柱山組為一套沖積扇扇三角洲沉積體系的粗碎屑巖，間夾由英安巖、安山巖、石英粗安巖和流紋巖組成的中酸性火山巖。
  20. Is there a neo - tethys subduction record earlier than arc volcanic rocks in the sangri group

    存在比桑日群弧火山巖更早的新特提斯洋俯沖記錄么
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