basic rocks 中文意思是什麼
-
The heat production in rocks due to radioactivity is highest in the acid rocks and lowest in the ultra-basic rocks.
巖石的放射作用熱產率以酸性巖類最高，超基性巖類最低。 -
The study shows that cretaceous volcanics mainly consist of medium acidic volcanic lava and volcanoclastic rocks, with locally developed basic lava ; medium acidic volcanics mainly consists of calc - alkalic series, was formed in compressive orogenic environment, and has good reservoir property, while cretaceous basis lava mainly consists of alkalic series, was formed in rift environment, and has poor reservoir property
結果認為，白堊紀火山巖以中酸性火山熔巖和火山碎屑巖為主，局部發育基性熔巖；中酸性火山巖以鈣堿性系列為主，形成於擠壓造山環境，儲集性能較好，而白堊紀基性熔巖以堿性系列為主，形成於裂谷環境，儲集性能較差。 -
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。 -
The copper, iron, nickel and silver deposits might be assigned to four metallogenic series : i. the metallogenic subseries of copper, molybdenum, gold, silver deposit related to late devonian - early carboniferous basic - intermediate - acid hypabyssal intrusive - eruptive rocks ; ii. the metallogenic subseriesof iron, copper, zinc deposits related to early carboniferous basic - intermediate - acid volcanic - intrusive rocks ; iii. the metallogenic subseries of copper, silver, iron deposits related to middle - late carboniferous basic - intermediate - acid volcanic - intrusive rocks ; iv. the metallogenic subseries of copper, nickel and platinum group deposits related to late carboniferous - early permian basic - ultrabasic rocks ; 3, division of regional major metallogenic belts on the basis of the previous work conducted and by following the principles, grounds and methods of the division of metallogenic belts, areas and fields, . in light of this, metallogenic belts of grade iv were divided
1 、按照成礦系列理論的學術指導思想，將研究區華里西期銅礦床成礦系列劃分為四個成礦系列亞系列： 、晚泥盆?早石炭世延東?土屋?三岔口與中酸性巖漿侵入活動有關的cu 、 mo 、 au礦床成礦亞系列、早石炭世與巖漿作用有關的鐵、銅、金、銀礦床成礦亞系列、中石炭世與巖漿作用有關的cu 、 fe 、 ag 、 au礦床成礦亞系列、晚石炭世-早二疊世與幔源基性?超基性巖有關的銅、鎳、鉑族礦床成礦亞系列並從地層、巖漿巖、控礦構造、地球化學、成礦特徵等方面對各成礦亞系列進行了詳細論述。 -
The coqen basin in xizang lies between the bangong - nujiang suture zone and yarlung zangbo suture zone, and once extended northwards and southwards, respectively centred by the qiekan - goicang - asog rift zone as the center of deposition and subsidence during the middle jurassic to the early creatceous. ( 1 ) during the middle - late jurassic, the rift zone was occupied by deep - water turbidites, radiolarian siliceous rocks, shallow - water carbonate rocks, clastic rocks and basic - ultrabasic rocks, while both sides of it by littoral and shallow marine elastic rocks and carbonate rocks
摘要位於班公湖怒江縫合帶與雅魯藏布江縫合帶之間的措勤盆地，在中侏羅世早白堊世期間具有以且坎古昌阿索裂谷帶為沉積、沉降中心向南北兩側展開的古地理格局：中晚侏羅世時期，裂谷帶內由深水濁積巖、放射蟲硅質巖和淺水碳酸鹽巖、碎屑巖巖片及基性超基性巖等組成；裂谷帶兩側由濱淺海相碎屑巖和碳酸鹽巖組成。 -
The results indicate : ( 1 ) the distribution of magmatic rocks shows the feature that in the middle and western part of the study area basic igneous rocks dominate, and in the middle - eastern part intermediate rocks are predominant, while in the southeastern part acid ones are developed. ( 2 ) in the area west to the shiwandashan basin, intermediate magmatites were controlled by deep ne - striking and nw - striking faults, especially at the conjunction site of these two group faults, magmatic activity was strong ; and its tectonic background can be attributed to extensional continental rift
其中，在十萬大山盆地以西地區的偏基性巖漿活動受北東和北西向深斷裂控制明顯，尤其以此兩組斷裂交匯處的巖漿活動強烈，盆地構造背景屬大陸伸展裂谷環境；在十萬大山盆地以東地區為偏酸性巖漿活動，主要受東吳運動形成的欽防造山帶的控制，屬大陸邊緣造山帶或島弧造山帶環境。 -
Through observation, description, slice identification of cores and chemical analysis of whole rock, it is determined that the central volcanic rocks of the eastern depression are classified as four major types, i. e. basalt, trachyte, tuff and cataclasite of sedimentary volcanic rocks, in which trachyte is of basic series and potassium rock type
通過巖心觀察、描述，巖心薄片鑒定，全巖化學分析等資料，確定東部凹陷中段火山巖巖石類型分為4大類：玄武巖、粗面巖、凝灰巖和沉火山碎屑巖類，其中粗面巖類屬于堿性系列、鉀巖類型。 -
Geochemical features of xiangshan basic - ultrabasic rocks in guangxi, china
廣西香山巖體地球化學特徵 -
Was made up of thick neutral and basic volcanics, volcanoclastic rocks and few normal sedimentary rocks. the sedimentary rocks of tiaohu fm. were mainly composed of terreverte or mauve mudstone, sandstone and glutenite
條湖組的分佈范圍與蘆草溝組大致相當，但巖性卻差異很大，為厚層中?基性火山巖、火山碎屑巖，是火山活動頻繁的證據，條湖組沉積巖夾在火山巖中間，主要為灰綠、紫紅色泥巖、砂巖及砂礫巖。 -
During the yanshanian phrase, the area is in the condition of contractional background, with multi - staged tectonic reversion. 5. through studying the origin of volcanic rocks and the characteristics of magma evolution, it concludes that there exist 3 originated areas of magma - from mantle, crust, and mantle - crust exchange. the basic magma of nandaling volcanic rocks of early jurassic is derived from upper mantle ; the magma of tiaojishan volcanic rocks of mid jurassic is formed in the contractional tectonic setting, and derived from the transition zone of crust and mantle interaction ; the acid magma of l
5 、通過巖石化學、微量元素、稀土元素的研究，探討了不同級別節律的火山巖成因、巖漿演化等特徵，認為本區燕山期火山巖有三個巖漿源區，即地幔源、地殼源和殼幔混源，早侏羅世的南大嶺旋迴的基性巖漿，起源於上地幔；中侏羅世髫髻山旋迴火山巖是在相對擠壓環境中，巖漿起源於殼幔過渡帶；晚侏羅世無負eu異常的酸性巖漿來源於下地殼的古老結晶基底的局部熔融，有負eu異常的酸性巖漿來源於上地殼的局部熔融；早白堊世火山巖基性巖漿起源於上地幔，中性巖漿起源於下地殼底部的殼幔過渡帶。 -
( 4 ) the comparative research suggests that various types of ultrabasic - basic rocks occurred different geological environment and different intruded mechanism can bring on different types of nickel sulflde deposit
（ 4 ）比較研究表明，不同地質環境產出的不同類型超基性?基性巖及其不同的侵入機制可以導致形成不同類型的鎳礦床。 -
Associated with a project of the planned xuefengshan tunnel with 7. 6 km long during the construction of shaoyang to huaihua expressway in hunan province of shanghai to ruili national trunk highway, this paper firstly makes an introduction of the frequently - used analysis & computation methods for tunnel supporting structure. then, based on the analysis of the basic theory about the interaction mechanism of surrounding rock and support structure, a spatial computation model is made, a coupling numerical computation method with 3 - d elastic - plastic finite element and infinite element is proposed, and a comprehensive analysis has been made to the effects of the overall stability and safety of the surrounding rocks of different characteristics, different classes and under different construction methods. and thus the problem of 3 - d infinite region to which applying the general finite ca n ' t do has been resolved
6公里的雪峰山隧道工程，首先介紹了隧道支護結構的常用分析計算方法；然後通過對隧道施工過程中，洞室穩定性與支護結構相互作用機理的深入分析，建立了隧道施工過程的空間計算模型，提出了採用三維彈塑性有限元-無限元耦合的數值計算方法，綜合分析了隧道在不同圍巖特性和圍巖類別條件下，以及不同施工開挖方案等對隧道圍巖整體穩定和安全性的影響，從而解決了通用有限元方法難以解決的隧道三維無限域問題；其可充分發揮有限元法在分析非線性方面的有效性和成熟性，以及無限元法在分析處理無限域和半無限域方面的精確性和簡便性，為隧道施工過程中圍巖的穩定性分析開辟了一條新的途徑。 -
Only three years agothe world ' s most advanced robotic cars struggled to make their wayaround even basic obstacles such as large rocks and potholes in theroad
三年前，世界最高級的無人駕駛汽車還只是致力於避開路面最基本的障礙物，如大巖石和凹坑等。 -
The change regularities of lining pressure and the failure process of surrounding rocks in permeation which a special sand is used as model materials are successfully simulated. the basic theory is established for the study of same type and the scientific basis for the tunnel prop design in saturation rock is provided
採用特定的河砂作為模型材料成功地模擬了破碎圍巖隧道在遇水情況下襯砌的受力變化規律及巖體的破壞過程，為開展同類型研究奠定了基礎理論，為飽水巖體隧道開挖支護設計提供了依據。 -
Magmatic intrusion took place mainly during the yenshan and himalayan epochs and is dominated by intermediate to acidic rocks ; basic to ultra - basic intrusive rocks are only locally observed
在時間上，巖漿侵入活動主要發生在燕山期和喜馬拉雅期，以中酸性巖占絕對優勢，基性巖僅零星見及。 -
Based on the in - situ measurements of ground pressure and physical and mechanical properties of rocks in guhanshan coal mine, and analysis of minerals composition and fissures in rock, the type of soft rock was determined to investigate the deformation and failure of surrounding rocks and floor heave happened in extremely soft rock roadway in guhanshan coal mine, which provides the basic news for support of rock soft
摘要針對古漢山礦軟巖巷道圍巖變形破壞和嚴重底膨問題，通過對巷道圍巖進行地應力測量、物理力學性質分析測試、礦物成份分析和節理裂隙調查，確定了底膨巷道的軟巖類型，這為解決軟巖巷道的支護問題提供了基礎。 -
Permian series distributed widely in the baisin. lower permian series was composed of acid, neutral, and basic volcanics, subvolcanic rocks, volcanoclastic rocks and few normal sedimentary rocks. from western to eastern, the volcanics transited from acid volcanics to neutral and basic volcanics
二疊系在盆地內部分佈廣泛，下二疊統卡拉崗組主要發育酸、中、基性火山巖、次火山巖、火山碎屑巖及少量正常碎屑巖，由西向東火山巖由中、酸性向中、基性過渡。 -
Beginning with the features of regional geophysical and geochemical fields in bazinao - zhanggongshan area, combinied with the available data of regional basic geology, this paper has put forward five i or ii grade potential au, sn enrichment zones on the basis of geophysical and geochemical metallogenic conditions of regional strata, magmatic rocks and structures
摘要從八字腦彰公山地區的區域地球物理場、區域地球化學場特徵分析入手，結合區內已有區域基礎地質資料，研究了區域地層、巖漿巖、構造的地球物理地球化學成礦條件，提出了5個金、錫礦i 、級資源富集遠景區。 -
Guided by the basic theory of high - resolution sequence stratigraphy, and based on the core observation, the analysis of chemical composition of rocks, and data of natural potential logging and apparent resistivity logging, authors have set up the high - resolution sequence stratigraphy framework of the ore - hosting yaojia formation, and discussed the relation of the stratigraphic structure of the middle cycle, as well as the paleotopography, the micro - facies to the formation of uranium deposit
在高解析度層序地層學基本理論指導下，筆者通過巖心觀察、巖石化學組分分析、自然電位及視電阻率測井等手段，建立了賦鈾巖系姚家組高解析度層序地層格架，探討了中期旋迴內地層結構、古地形和沉積微相與鈾礦床形成的關系。 -
The basic to ultra - basic rocks are distributed along suture zones, whereas the intermediate to acidic intrusives occur mainly to the south and north of the arsuo tectonic melange zone and the angren ophiolitic melange zone
基性-超基性巖沿結合帶分佈，而中酸性侵入巖主要分佈在阿索蛇綠混雜巖和昂仁蛇綠混雜巖的南北兩側。
分享友人