O - oligocene 中文 - EN166

oligocene n.,adj.【地質學；地理學】漸新世(的)；漸新統(的...

oligochaete
On the basis of all kinds of stratigraphic and petrologic data of outcrop and well sections , the maps of single factors and sedimentary facies of the paleocene - eocene , oligocene and miocene were compiled with the single factor analysis and multifactor comprehensive mapping method proposed by professor feng zengzhao 摘要根據柴達木盆地北緣露頭剖面、鉆井剖面的地層學和巖石學研究所取得的各種定量及定性資料，采用馮增昭教授倡導的單因素分析多因素綜合作圖法，編制了柴達木盆地北緣結綠素紅山地區古新統始新統、漸新統和中新統的各種單因素圖和沉積相圖。
Based on the analyses of structural features , volcanic activities , sequence construction and so on , it is believed that liaohe basin has experienced the period of dextral transtensional stress field in late jurassic - early cretaceous , middle and late paleocene , late eocene , miocene , and also the period of sinistral compresso - shear stress field in late cretaceous , early paleocene , early and middle eocene , oligocene , pliocene 對構造現象、火山活動、層序充填型式等多種實際資料的分析表明：遼河盆地經歷了侏羅紀末白堊紀早期、古新世中后期、始新世中后期、中新世等右旋張扭應力場作用階段，以及白堊紀晚期、古新世初期、始新世早中期、漸新世、上新世以來等左旋壓旋應力場作用階段。
Based on available data , the study on regional structure , sedimentary reservoir and source rock characteristics shows that the basins in south china sea had experienced sedimentary evolution in faulting period and depression period , deposited thick cenozoic formation , upwardly developed alluvial fan facies , river - lake facies coastal swamp facies coastal facies , neritic facies and bathyal deposit system , regionally had 3 source rocks of eocene , oligocene and miocene , 3 reservoirs of pre - cenozoic basement buried bill , oligocene sandstone and miocene reef , with pliocene and pleistocene neritic facies and bathyal shale as regional caprock 摘要以現有資料為基礎，通過對區域構造、沉積儲層、烴源巖特征等基礎石油地質條件研究，認為南海海域各盆地經歷了斷陷期和坳陷期沉積演化，沉積了巨厚的新生代地層，自下而上發育了沖積扇相、河湖相、濱岸沼澤相、濱海相、淺海相、半深海相沉積體系，區域上存在始新統、漸新統和中新統3套烴源巖，前新生代基巖潛山、漸新統砂巖、中新統生物礁3套儲層，區域蓋層為上新統和更新統淺海半深海相泥巖。
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。
( 4 ) the formation and growth of structural traps and stratigraphic - unconformity traps in the area is controlled by three compressive stages of silurian - devonian , late permian - tertiary and oligocene - quaternary ; non - structural and compound traps mainly grew in the early paleozoic . structural traps mostly grew in the late paleozoic and the cenozoic and mostly grew on the north and south belts ; non - structural traps mostly grew in the northern area of the hetian concave . most traps in the area formed or typed at last in the himalayan episode , dispersed on the north and south belts ( 4 )研究區構造與地層不整合圈閉的形成和發育受志留-泥盆紀、晚二疊世-第三紀、漸新世-第四紀三個擠壓階段的控制；早古生代主要發育非構造圈閉和復合圈閉，晚古生代和新生代則主要發育構造圈閉：構造圈閉主要發育在南北兩帶上，其次為中帶；非構造圈閉主要發育在和田凹陷以北的地區；研究區內大多數圈閉是喜山期形成或最終定型的，在南北兩帶都有分布，而海西期圈閉主要分布于研究區中帶瑪南構造帶處。
The sedimentary systems were alluvial fan - braided fluvial river - lacustrine depositional systems during the paleocene - eocene , and braided fluvial river - lacustrine depositional systems during the oligocene - miocene 古新世始新世發育沖積扇辮狀河湖泊沉積體系，漸新世中新世發育辮狀河湖泊沉積體系。
They have also unearthed some clues from the ensuing oligocene , when the modern suborders of cetaceans ? the mysticetes ( baleen whales ) and the odontocetes ( toothed whales ) ? arose 在隨后的漸新世地層中，他們也找到了一些線索；須鯨亞目（有鯨須的鯨魚）與齒鯨亞目（有齒的鯨魚）就是在那時候分化的。
Fan delta deposits of sha - 3 and sha - 4 members at oligocene shahejie formation at yong 921 area in the north of dongying depression 東營凹陷北部永921地區漸新世沙三段和沙四段扇三角洲沉積
Oligocene mineral component inversion based on geophysical well logs from odp hole 1148a , south china sea 測井資料反演南海北部陸坡漸新統的礦物組分
Carbonate reservoir of the oligocene member 1 , shahejie formation , dongxin oilfield 東辛油田沙一段碳酸鹽巖儲集層研究
In the ostra field, venezuela, oil is produced from lenticular sandstone beds of the oligocene oficina formation . 委內瑞拉奧斯特拉油田的產油層，為漸新世奧菲西那組透鏡狀砂巖層。
Oligocene erosion had truncated the sediments draped over the dome . 覆蓋于穹丘上的沉積巖為漸新世侵蝕所截削。