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ordovician n.【地質學;地理學】奧陶紀;奧陶系;〔the O-〕奧...

ordure

The andesite clasts were most likely derived from erosion of igneous rock in middle jurassic time , and the limestone clasts were derived from cambrian and ordovician strata . dolomite clasts were derived from the middle proterozoic jixian group 安山巖礫石是中侏羅統髫髻山組火山巖剝蝕的產物,灰巖礫石來自于寒武、奧陶系灰巖,白云巖礫石主要來自于薊縣系白云巖。

The correlation of oil - oil indicated that the oil can be devided into three species at least ; the correlation of oil - source rock indicated that there are three sets of source rock , namely cambrian - ordovician , carboniferous - permian and jurassic system 油油對比表明原油至少可分為三類;油源對比表明有三套烴源巖,即寒武奧陶系、石炭二疊系和侏羅系生油巖。

The carbonate source rocks of middle - upper ordovician in tarim basin are widely distributed in different sedimentary environments at the same period such as platform margin slope , platform inner sag , continental shelf , abyssal basin , etc 摘要塔里水盆地中上奧陶統碳酸鹽巖烴源巖在同一時期不同的沉積環境(臺緣斜坡、臺地內凹陷、陸棚、深海盆地等)中均有發育。

The predicted petroleum resources in place of ordovician in tahe oilfield amount to about 1 . 414 10 ^ 9 t , which provide the geological basis for oil - gas exploration planning and preparing the mid - and long - term development goals in this area 塔河油田奧陶系石油地質資源量為14 . 14 10 ^ 8t這將為塔河油田油氣規劃部署和編制中長期發展目標提供地質依據。

At present , important breakthroughs have been gained in the middle - upper ordovician . oil and gas were mainly storaged in the karstic fissure - cave . thus , the study of karstic reservoir are very important 塔河油田下奧陶統是其主要產油層位,目前在中上奧陶統又取得了突破,油氣主要儲存在巖溶縫洞中,因此巖溶型儲層研究具有非常重要的意義。

Study on petrology , geochemistry and isotope chronology shows that the metallogenesis is closely related to granite - porphyry , which belongs to the early ordovician adakite formed in volcanic arc 花崗斑巖與成礦作用關系密切,從巖石學、巖石化學、年齡學等方面對花崗斑巖進行了研究,認為花崗斑巖屬于志留世早期形成于火山弧環境的埃達克巖。

On the simulated foundation of mechanism , the author analyses to study the relation that the developing trends , containing water and drives oil mechanism etc in tahe oil field ordovician system reservoir 在機理模擬的基礎上,分析研究了塔河油田奧陶系油藏儲層與開發動態的關系、含水上升規律和驅油機理等。

An angular unconformable contact was for the first time found between the middle jurassic bathonian stage and its underlying pre - ordovician metamorphosed basement in the chawola district , in nyainrong county 摘要在聶榮縣查吾拉區一帶首次發現中侏羅統巴通階與下伏前奧陶系基底變質巖系之間呈角度不整合接觸。

Compared to poststack time migration , prestack time migration results in clear images of fractures and cavities in the ordovician carbonate rocks , and definite unconformities at top of the ordovician 疊前時間偏移與疊后時間偏移結果相比,具有豐富的奧陶系碳酸鹽巖裂縫溶孔內幕,清晰的奧陶系頂不整合面。

Karst formed in both periods piled up and formed the karst cave - pore reservoir of the ordovician fengfeng formation and upper majiagou formation in qianmiqiao buried hills 兩期巖溶相互疊合發育形成了千米橋潛山奧陶系峰峰組和上馬家溝組上段溶洞-孔隙型儲集層。

( 2 ) the paleozoic in the area has two pairs of source rocks , or cambrian - ordovician and carboniferous - permian , which are greater affected by tectonic evolution ( 2 )研究區古生界存在寒武-奧陶系和石炭-二疊系兩套烴源巖,其生烴期受構造演化的影響較大。

Laiwu hydrothermal metasomatic iron deposit is located at contact zone of ordovician carbon - ate rock ( majiagou formation ) and late yanshanian diorite or nearby 摘要萊蕪接觸交代熱液鐵礦賦存于奧陶系馬家溝組碳酸鹽巖與燕山晚期閃長巖的接觸帶及其附近。

Great burial - depth , low porosity , and strong heterogeneity are the basic characteristics of the ordovician carbonate reservoir in lunnan area of tarim basin 超埋深、低基質孔和極強的非均質性是塔里木盆地輪南奧陶系碳酸鹽巖儲層的基本特點。

Ordovician carbonate rock bed of ordovician reservoir in qianmiqiao buried hill experienced two times of karst exposure and the post plaeogene deep - buried diagenesis 摘要千米橋潛山奧陶系儲層經歷了兩次裸露巖溶及古近紀后的深埋藏成巖作用。

The development of an atypical hirnantia - brachiopod fauna and the onset of glaciation in the late ordovician of gondwana / owen e . sutcliffe . . . [ et al . ] 岡瓦納古陸晚奧陶統一個典型的赫南特貝屬-腕足動物群的發育和冰川作用的開始

This paper is a continuation of the papers on lithofacies palaeogeography of the early , middle and late cambrian and the early and middle ordovician 摘要本文是筆者等的中國早、中、晚寒武世和早、中奧陶世巖相古地理諸文的繼續。

( 6 ) the paper founded the cambrian + ordovician + carboniferous - ordovician + carboniferous ( 1 ) petroleum system of the hetian paleo - uplift paleozoic ( 6 )建立了和田古隆起古生界寒武系+奧陶系+石炭系?奧陶系+石炭系( ! )含油氣系統。

The cambrian and ordovician limestone of over 1 000 m thick in the mountainous area to the sourh of jinan develops a large number of fractures and karsts 南部山區發育厚度達1000余米的寒武?奧陶系石灰巖,裂隙、巖溶發育。

Coal , carbargilite in permo - carboniferous and carbonate in ordovician system were the main source rock of natural gas in the researched area 石炭二疊系分布的煤層、炭質泥巖和奧陶系碳酸鹽巖是研究區主要的氣源巖。