palaeozoic adj.【地質學;地理學】古生代的。n.〔the Pal...
adj. 【地質學;地理學】古生代的。 n. 〔the Palaeozoic〕古生代。 “palaeozoic alps“ 中文翻譯: 古阿爾卑斯“palaeozoic era“ 中文翻譯: 古生代“palaeozoic group“ 中文翻譯: 古生界“palaeozoic relief“ 中文翻譯: 古生代地形起伏“palaeozoic stratum“ 中文翻譯: 古生代層“upper palaeozoic“ 中文翻譯: 上古生界“palaeozoic fold belt“ 中文翻譯: 古生代褶皺帶“palaeozoic source rock“ 中文翻譯: 古生代生油巖“u er palaeozoic“ 中文翻譯: 上古生界“palaeowind“ 中文翻譯: 古風向“palaeoweichselia“ 中文翻譯: 雜羊齒屬“palaeovulcanism“ 中文翻譯: 古火山作用“palaeovolcanology“ 中文翻譯: 古火山學“palaeovolcano“ 中文翻譯: 古火山
palaeozoology |
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Using evidence weight method , the authors selected tectonic activities , hydrocarbon abundance and thickness of source rocks , level of reservoir , complexity of reservoir , degree of mineralization of formation water as the evidence layers to evaluate the favorable zones of lower palaeozoic pools at the north edge of the middle and lower yangtze area 摘要利用地質異常研究中的證據權重法,選擇構造活動、烴源巖有機質豐度、烴源巖厚度、儲層級別、儲層復雜程度、蓋層發育程度、地層水礦化度作為證據層,對中下揚子北緣下古生界油氣成藏有利區帶進行了評價。 |
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Because of the absence of mantle xenoliths and xenocrysts , it is the first time that this paper looks on the native heavy minerals deriving from mantle , which were collected at the terraces of the two rivers , kalakshi river and yulongkashi river , as objects and takes into account the geochemical characteristics of the rocks deriving from mantle such as keliyang lamproite and so on to study the composition of lithospheric mantle , the characterics of palaeozoic era lithospheric mantle , mantle thermal state , and diamond metallogentic mantle geological conditions in research field 為達到研究目的,本文首次以喀拉喀什河和玉龍喀什河沿岸階地的幔源重砂礦物(單斜輝石、鉻尖晶石類礦物、鈦鐵礦以及石榴石)為研究對象,結合鉀鎂煌斑巖等區內已發現的幔源巖石及其中地幔物質對該區地幔物質的組成、古生代巖石圈地幔特征、巖石圈熱狀態以及該區金剛石成礦地幔地質條件做了嘗試性的研究工作。 |
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Tertiary structures are developed in mesozoic - palaeozoic tectonic settings , the general framework is faulted depression faulted in the north and onlapped on the south and arch bounded by faults . they are controlled and affected by three sets of large successive - active faults ( nw , ne and nee strike ) , they are successive and segmented , with multiples types and zoning distribution 第三系的構造是在中、古生界構造的背景上發育起來的,它以北斷南超的箕狀斷陷和斷層為界的凸起為總的構造格架,受北西、北東和北東東向三組繼承性活動大斷層的控制和影響,構造具有繼承性和分割性、類型具有多樣性、分布具有分層分帶性。 |
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Based on the synthetic research of field outcrops , drilling section , well log and office compilation , combined with analyses of geological background , lithological association , sedimentary texture , sedimentary structure , geochemical and palaeobiological features , the researched area in the palaeozoic can be divided into deltas , braided deltas , lacus , barrier coast , continental shelf and carbonate platform etc . six kinds of sedimentary facies 在野外露頭、鉆井剖面及測井曲線的綜合研究和室內編圖基礎上,綜合地質背景、巖性組合、沉積結構、沉積構造、地球化學及古生物學特征,研究區古生界被劃分為三角洲、辮狀河三角洲、湖泊、障壁海岸、陸棚及碳酸鹽臺地等6種沉積相類型。 |
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Among of them , carbonate rock is the primary type of them , it is the product of stable platform facies of marine . we study the geochemical characteristic of carbonate rock of lower palaeozoic burial hills in the regions of zhuangxi and chengdao and find that the calcite fillings in cave or vein have high value of 87sr / 86sr , low value of 13c and 18o and high mn content among of different structural components . so it has been exposed to be dissolved by meteoric water on supcrgene diagenetic stage 通過對樁西、埕島地區下古生界碳酸鹽巖的地球化學特征研究,表明在巖石的各種結構組分中,洞或脈中的方解石充填物具有顯著較高的~ ( 87 ) sr ~ ( 86 ) sr比值,較低的~ ( 13 ) c 、 ~ ( 18 ) o和較高的mn含量,其所經歷的重要巖溶作用是大氣淡水成巖作用,發生的時間為表生成巖階段。 |
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On the basis of the analyses of peripheral ancient land , types of sand stone , light and heavy mineral associations and directions of palaeoflow , it is considered that detrital material of terrigenous origin of the upper palaeozoic in this area come from south provenance and north provenance , respectively , yinshan ancient land in the northern and east qinling ancient land in the southeastern 根據盆地周緣古陸、砂巖類型、輕、重礦物組合及古水流方向等特征的分析,認為研究區上古生界陸源碎屑物質來自南、北兩大物源區,即北部的陰山古陸和東南部的東秦嶺古陸。 |
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The study of geological characteristics and geochemical conditions of mazhuangshan gold deposit shows that it is closely related with old metamorphic basement and volcano - magmatic activities as well as volcanics and volcaniclastics of mazhuangshan - mingshui superimposed volcanic basin , and controlled by structures derived from closure of late palaeozoic honghe basin 摘要對馬莊山金礦地質特征及地球化學條件研究表明,馬莊山金礦的形成與古老變質基底、火山巖漿活動及馬莊山一明水上疊火山巖盆地的火山巖、火山碎屑巖緊密相關,并受到晚古生代紅河盆地閉合而派生的構造控制。 |
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On the basis of analysis on the characteristics of structural evolution , the growth of the source rocks is analyzed . in the period of mesozoic - palaeozoic , caledonian events and the evolution of hercynian - early indo - chinese cycle are experienced in two - phase marine passive continental margin and craton basin in the lower and middle yangtze region , by which stable enormous thick mesozoic - palaeozoic deposites are induced , six sets of source rocks are produced , it has a strong capacity of hydrocarbon generation 摘要通過構造演化特征分析了海相烴源巖的發育,中、下揚子區中古生代經歷了加里東和海西早印支旋回兩個階段的海相被動大陸邊緣和克拉通盆地演化,形成了巖性穩定的巨厚中古生界,發育了6套烴源巖,具有較強的生烴能力。 |
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The filling evolutionary process in the palaeozoic era in this area was extremely complex . during the majiagou stage of early ordovician period , the researched area went through three tertiary eustatic cycles . with negative movement in ma ; stage , deposits of evaporate platform and local platform were developed 古生代研究區經歷了十分復雜的充填演化過程,早奧陶世馬家溝期本區經歷了三個三級海平面升降旋回,其中馬5期隨著海平面下降,發育了蒸發臺地和局限臺地沉積。 |
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The sedimentary formation can be summarized as rift bay filling sequence , epicontinental sea filling sequence , offshore debris lake basin sequence and inner continental lake basin sequence . a framework of sequence stratigraphy for the upper palaeozic strata is established in the area . the helan aulacogen of upper carboniferous in the west margin of ordos can be divided into 12 sequences , and most of the upper palaeozoic strata in the area can be divided into 15 sequences 本文對研究區內上古生界進行了層序地層學探討,將本區沉積建造概括為裂陷海灣充填層序、陸表海充填層序、近岸碎屑湖盆層序和內陸湖盆層序,建立了研究區上古生界層序地層學格架,西緣賀蘭拗拉槽上石炭統劃分為12個層序,本區大部分地區上古生界可劃分出15個層序,并全面地概括了層序演化各階段的具體特征。 |
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This thesis emphasizes to proceed the study on the mechanism of formation of the reservoirs of lower palaeozoic burial hills in the regions of zhuangxi and chengdao from the angle of geochemistry . the research of petrology reveal rock types of the regions mainly include carbonate rock , claystone , siltstone , breccia and a few of evaporite rock 巖石學研究表明,樁西、埕島地區下古生界古潛山儲層的巖石類型有碳酸鹽巖、粘土巖、碎屑巖、以及少量蒸發巖,其中碳酸鹽巖是該區下古生界古潛山儲層最主要的巖石類型,為一種穩定地臺型海相沉積環境的產物。 |
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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布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。 |
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Due to distribution of sand body and very variety of reservoir physical characteristics and serious nonuniformity in the upper palaeozoic gas pool at the sulige gas field , during the course of gas and oil field development , it is urgent problem about how to predict precisionly the distribution of high permeable and thick reservoir bed , precisely choose the place of productive well 蘇里格氣田上古氣藏的砂體分布、儲層物性變化很大,非均質性嚴重,因此,在開發過程中如何準確預測高滲厚儲層的分布、準確選定開發井位,是高效開發蘇里格氣田急待解決的問題。 |
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The reservoir is located at yishan slope area between jinxi fold belt and tianhuan depression , it has the characters of less structural deformation , overlying hydrocarbon genetic center in upper and lower palaeozoic era , growth of high efficient reservoirs and as well as fast lateral changes of reservoir physical properties , it has the condition of forming non structural traps , which is the major area for gas reservoir exploration in the basin 位于晉西撓褶帶和天環坳陷間的伊陜斜坡區,因具有構造變形微弱,上、下古生界生烴中心疊置,高效儲層發育,儲集層物性側向變化快等特點,具備形成非構造圈閉優越條件,為盆地氣藏勘探約重點區帶。 |
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There are a series of lead - zinc polymetallic deposits , such as fozichong , dongtao , xiashui , wenlongjing and jilongding distributed along the fault zone . these deposits have some similiar features : ? ll of them are bounded in the strata of lower palaeozoic group ; ? ain orebodies occur as stratiform or stratoid form with occurrence consistent with that of host strata ; ? tratiform skam or baritic rock are the direct country rock of orebodies ; ? ypical syngenetic sedimentary fabric preserved in the ore . these deposits may be included in the same metallogenic series 佛子沖、東桃、下水、文龍徑、雞籠頂等一系列鉛鋅多金屬礦床沿該斷裂帶分布,這些礦床雖然在成礦規模、賦礦層位和礦石礦物組成等方面存在一些差異,但均產于下古生界地層中;主要礦體呈層狀、似層狀產出,與地層產狀大體一致;直接賦礦圍巖為層狀綠色巖或重晶石巖;礦石中保留有典型的同生沉積組構。 |
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In the last few years , we had obtained plenteous harvests on the exploration of lower palaeozoic burial hills in the regions of zhuangxi and chengdao , jiyang depression . with the enhancing of the exploration degree , it needs more deep research on its reservoirs to adapt to it 隨著勘探程度的不斷加大,也需要對其潛山儲集層的研究不斷深入與之相適應,本文著重從地球化學的角度對樁西、埕島地區下古生界古潛山儲層的發育機制進行了研究和探討。 |
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Regarded regional unconformity , transformation basement of tectonic regime , incised water channels , discontinuous surface of sidementary facies and exposed surface of lowstand as boundary of sequence , the palaeozoic in the researched area can be divided into three supersequence and fourteen sequence 以區域不整合面、構造體制轉換面、水道下切谷、沉積相突變面及低水位期暴露面作為層序界面,將研究區古生界劃分為3個層序組和14個層序。 |
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It is considered that the sequence evolution in the palaeozoic went through the following three stages , the filling of evaporate platform , the filling of carbonate and detrital rock mixed deposits in epiric sea , and the filling of detrital deposits of lake - deltas in paralic inland sag 認為研宄區古生界層序演化經歷了以下三個階段:蒸發臺地充填階段、陸表海碳酸鹽巖與碎屑巖混合沉積階段,以及近岸內陸坳陷的湖泊三角洲碎屑巖沉積階段。 |
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According to the type and scale of stratigraphic contact , four synthems such as basement ( pre - sinian ) , lower ( palaeozoic ) , middle ( mesozoic ) and upper ( cenozoic ) are divided , and seven sub - synthems are subdivided 本文依據地層接觸關系的類型和規模,將本區劃分為基巖(前震旦系) 、下(古生界) 、中(中生界) 、上(新生界)四個構造層和內部的七個構造亞層。 |