lower jurassic 中文意思是什麼
lower jurassic
解釋
下侏羅紀-
The result shows that a sequence boundary is identified inside member 2 of sangonghe formation of lower jurassic, which is characterized by lithology of scour surface and conglomerate and gravel bearing gritstone over it, and by well logs of abrupt contact
通過巖心、錄井、測井、地震的綜合研究發現，在下侏羅統三工河組二段內部可以識別出一個三級層序界面。 -
The study results can be summerized as following aspects : ( 1 ) the basic settling curve of this basin was broken - line shape of seven sections in which upper jurassic, lower cretaceous, eocene, oligocene and neogene corresponded with the decline ones representing five episodic clear subsidences of this basin, late cretaceous to paleocene and early miocene corresponded with the rising ones reflecting the uplift and denudation of this basin. ( 2 ) the subsidence of this basin migrated from the east to the west, from mesozoic to cenozoic
研究表明： （ 1 ）北黃海盆地的基本沉降曲線型式為7段折線狀，其中晚侏羅世、早白堊世、始新世、漸新世、新近紀為曲線下降段，代表盆地5幕較明顯的沉降；晚白堊世古新世以及中新世早期為曲線上升段，反映盆地的抬升剝蝕。 -
First of all, the substance foundation of low - rank coal cbm generation in the basin has been discussed according to the development of coal reservoir, coal petrography, coal properties, coal rank, coal genera, coal facies feature of lower jurassic badaowan formation ( jlb ) and middle jurassic xishanyao formation ( j2x )
首先，根據下侏羅統八道灣組（ j _ 1b ）和中侏羅統西山窯組（ j _ 2x ）煤儲層發育、煤巖、煤質、煤級、煤類、煤相地質特徵論述了本區低煤級煤層氣生成的物質基礎。 -
6. the mesozoic sedimentation in the north margin of the dabie orogenic belt is diachronous. from east to west, the onset of the sedimentation is successively in lower - middle jurassic, middle - later jurassic and lower cretaceous
大別山北緣中生代沉積作用具有穿時特徵，沉積作用開始時間自東向西依次為早中侏羅世、中晚侏羅世和早白堊世。 -
Three sets of source rocks had been formed juring the steady sinking of the basin. the first source rock, being clay and calcium clay stone in tiemulike formation of permian was formed in deep lake environment ; the second source rock, being clay stone in xiaoquangou group of middle to upper triassic was formed in the offshore and the shallow lake environment ; and the third source rock, being coal beds in badaowan formation of lower jurassic was formed in the lake - swamp environment. the first one is the most potential, since it has the biggest thickness, the highest organic matter abundance, high maturity and the highest hydrogen generating capacity
在盆地穩定沉降時期，相應地形成三套烴源巖，即上二疊統鐵木里克組（ p _ （ 2t ） ）深湖、半深湖相泥巖、泥灰巖；中上三疊統小泉溝群（ t _ （ 2 - 3xq ） ）濱淺湖相泥巖及下侏羅統八道灣組（ j _ （ 1b ） ）湖沼相煤系地層。 -
At the late stage of upper jurassic ( 135ma ), the provenance areas underwent intense and sustained uplift and denudation. in the period of lower cretaceous, the tectonic setting of the provenance areas turned into strike - slip
侏羅紀末（ 135ma ）到早白堊世源區產生劇烈的持續上升和剝蝕，早白堊世晚期，源區的構造轉換為拉張。 -
There are fine local cap formations existing in upper and lower youshashan formation of jurassic system
侏羅系，下油砂山組，上油砂山組存在較好的局部蓋層。 -
This is similar to the synchronous deposition of black shale in europe. during the lower toarcian, coincident with the peak of the lower jurassic transgression, highly bituminous shales were deposited in extensive parts of the european epicontine
這種有機碳異常富集的沉積層被描述為大洋缺氧事件（ oae ）的沉積，與白翌紀賽諾曼十侖期類似。 -
It points out the targets for next exploration in yingen - ejinaqi basin are the lithologic and stratigraphic as well as buried hill reservoirs ( volcanic rock and granite ) in the east, the jurassic and lower cretaceous as well as buried bill ( pre mesozoic granite ) reservoirs in the west
提出了銀根額濟納旗盆地的下一步勘探方向：在東部，以巖性、地層、古潛山（火山巖或花崗巖）油藏為主：在西部，以侏羅系、下白堊統及古潛山（前中生界花崗巖）油藏為主。 -
Based on the analysis of distribution of upper jurassic and lower cretaceous strata and basin - controlled faults, tanlu fault zone strike slip to develop the three nw - trending grabens from north to south western to tanlu fault zone in late jurassic and early cretaceous, which are bohai graben, jiyang graben and luxinan graben. based on the analysis of regional geology, the basic tectonic pattern of bohai basin is the cenozoic basin pattern since early paleogene. the outline, structure, deposit characteristics and heat flow distributions show that the basin is pull - apart basin in cenozoic time. the tectonic evolution pattern can be reconstructed based on the analysis of cenozoic strata, deposit thickness, location and activity of basin - controlled faults in the different depresses in bohai basin. the characteristics of structure and depositment in this mesozoic and cenozoic time show that bohai basin is a mesozoic and cenozoic composite basin
根據中生界上侏羅統和下白堊統地層和控盆斷裂分佈分析，中生代晚期晚侏羅早白堊世郯廬斷裂帶的左旋走滑平移導致郯廬斷裂帶以西自北向南發育了3個北西向斷塹系，即北部的渤海斷塹系中部的濟陽斷塹系和南部的魯西南斷塹系。從區域資料綜合分析，渤海灣盆地的基本格局是早第三紀以來的新生代盆地格局。渤海灣盆地的形態構造和沉積特徵及熱流值分佈表明該盆地在新生代為拉分盆地。 -
Abstract : based on the isotopic dating data of volcanics and recent research achievements of age boundary between jurassic and cretaceous systems, it is suggested that the volcanic series in shengyuan basin must be attributed to lower cretaceous
文摘:本文根據盛源盆地火山巖同位素年齡數據和侏羅-白堊系界線年齡的最新研究成果，認為盛源盆地火山巖系的地層時代應屬早白堊世。 -
Establishment of high - precision sequence framework of middle - lower jurassic in turpan sag
吐魯番坳陷中下侏羅統高精度層序地層格架的建立 -
Continent block colliding during late - permian to middle - triassic ; lower part delamination and upper part rifting of lithosphere during late - triassic ; delayed compression and uplift during early - jurassic ; crust extension from middle - jurassic to early - cretaceous ; large - scale strike sliping from late - cretacoues to present. ( 6 ) roughly expounding the deposits distribution feature in south part of sanjiang orogenic belts, especially in detail to set forth the characters of southern nanchangjiang cu, pb, zn, ag, sn, fe metallogenic belt
初步闡明了三江造山帶南段礦床的時空分佈特徵，特別是較系統闡述了與巖石圈拆沉作用相關的南瀾滄江cu 、 pb 、 zn 、 ag 、 sn 、 fe成礦帶的特點，指出含鉀較高的火山巖可作為尋找拆沉環境中銅多金屬礦的有利地區，而火山巖中孔隙度較高的層位、層面和破碎帶可作為優先找礦部位。 -
The condition of origin rocks is superiority as there develope two series hydrocarbon origin rocks of cambrian - ordovicion and jurassic. the former has evolved in high mature period to produce gas meanwhile the later only reach lower or mature period
寒武?奧陶系烴源巖在奧陶紀未已達高成熟階段，以生氣為主，侏羅系烴源巖目前處于低成熟?成熟階段，它們相互獨立、彼此復合，構成復式油氣成藏系統。 -
In triassic and lower - middle jurassic, there is the acid diagenetic ambient, where inter - pore fluid is from the organic acid released from the coal measures during diagenesis
三迭系至中下侏羅紀煤系為酸性成巖環境，它們在成巖過程中釋放的有機酸使隙間流體呈酸性。 -
According to the drilling results, the middle - lower jurassic can be considered the main mesozoic source rock
鉆井揭示，中下侏羅統為中生界主要烴源巖。
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