检索结果-南通市图书馆

Petroleum Migration Direction of the Silurian Paleo-pools in the Tarim Basin, Northwest China

在线全文

学校读者我要写书评

暂无评论

Acta Geologica Sinica(English Edition) 2008年第1期82卷 174-183页

作者： LIU Luofu ZHAO Yande HUO Hong CHEN Lixin CHEN Yuanzhuang ZHAO Suping LI Chao LI Shuangwen GUO Yongqiang LI Yan key Lab for Hydrocarbon Accumulation Mechanism in the China university of Petroleum,{2. of {3. Basin and Reservoir Research Center, China university of Petroleum,Beijing 102.49, China China Univ Petr Key Lab Hydrocarbon Accumulat Mech Minist Educ Beijing 102249 Peoples R China China Univ Petr Basin & Reservoir Res Ctr Beijing 102249 Peoples R China

The results obtained in this paper indicate that carbazole-type compounds have high thermal stability and also show stability in oxidation and bio-degradation. This kind of compounds still has a high concentration and complete distribution in the analyzed dry asphalt samples, showing that they are particularly useful in studying petroleum migration of paleo-pool. During the basin＇s first-stage of oil-gas pool formation in the Silurian in Tazhong and Tabei areas of Tarim Basin （at the end of Silurian period） and the second-stage in the Awati area （in Permian）, the petroleum experienced a long-distance migration. During the formation of the Silurian paleo-pools in Tazhong Uplift at the end of Silurian, the petroleum mainly came from the lower and middle Cambrian source rocks in the Manjiaer sag. The petroleum migrated towards the southwest-south entering the Silurian reservoir beds in Tazhong first. Then, it further migrated within Silurian from northwest to southeast along the highs of the Structural belts to the region of the Silurian pinchout boundary in Tazhong. In Tabei Uplift, during the first-stage of pool formation, the petroleum was also from the lower and middle Cambrian source rocks in the Manjiaer sag. It migrated northwest entering the Silurian reservoir beds in the Tabei Uplift firstly, and then the migration continued in the same direction within the Silurian reservoirs and finally the petroleum was trapped in higher positions. During the second-stage pool formation in the Silurian beds in the areas around Awati sag, the petroleum mainly came from the lower-middle Cambrian source rocks in the Awati sag. The petroleum migrated from the generation center to Silurian reservoirs in all directions around the sag through major paths, and the petroleum was finally trapped in higher locations.

关键词： nitrogen pyrrolic compound carbazole petroleum migration Paleo-poois Silurian Tarim Basin

pH-and photo-dual-response self-assembled structures

在线全文

学校读者我要写书评

暂无评论

pH-and photo-dual-response self-assembled structures

北山-阿拉善地区侏罗-白垩纪盆地的叠合演化

中国化学会第2.届学术年会

作者： Qingchao Hu,Yangyang Wang,Xuan Sun key laboratory of Colloid and Interface Chemistry,{2. of {3.,and School of Chemistry and Chemical Engineering,Shandong university,2. South Shanda Road,Jinan 2.0100

pH-and photo-dual-response self-assembled structures were fabricated from the carboxylic-substituted azobenzene *** neutrally aqueous solution,the molecules were roughly charged anions（COO-）.Electrostatic repulsion driving the amphiphilic molecules self-assemble into vesicles,which can reconstruct into belts of tubular structure at pH = *** intermolecular hydrogen-bonding was the main driving force of the morphologic *** exposed to the UV light,the molecules isomerized from trans-form to cis-form,and the belts or tubes were destructed into the porous network *** results demonstrated that the molecular building block stacked in high order within the belt or tubes,while more random within the network *** recovery of the nanotapes from network structure could be achieved either through visible-light irradiation or by heating at 60°*** the self-assembled system herein has the potential applications as smart carriers for controlled release and site-specific targeting of the loading modulated by environmental stimuli.

关键词： self-assemble pH-responsive photo-responsive azobenzene carrier

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

石油与天然气地质 2004年第1期25卷 54-57页

作者：李明杰郑孟林曹春潮张军勇中国地质大学北京100083 石油大学盆地与油藏研究中心石油物探局研究院地质研究中心河北涿州072751

北山阿拉善地区的侏罗纪盆地受近东西向构造控制 ,划分为阿拉善沉积区和蒙古造山带沉积区。蒙古造山带内形成的侏罗纪盆地可划分为黑鹰山 -额济纳旗沉积带 ,公婆泉 -中口子 -苏红图 (尚丹 )沉积带。蒙古造山带内发育的侏罗纪盆地较阿... 详细信息

北山阿拉善地区的侏罗纪盆地受近东西向构造控制 ,划分为阿拉善沉积区和蒙古造山带沉积区。蒙古造山带内形成的侏罗纪盆地可划分为黑鹰山 -额济纳旗沉积带 ,公婆泉 -中口子 -苏红图 (尚丹 )沉积带。蒙古造山带内发育的侏罗纪盆地较阿拉善地块内发育的盆地面积小 ,分布零星 ,后期改造强烈。早白垩世盆地受北东向构造控制 ,具有箕状或不对称断陷结构 ,为北东向展布的相互独立的断陷湖盆 ,也可分为阿拉善和蒙古造山带两大沉积区 ,在造山带内发育的盆地发育了一套优质烃源岩 ,而在阿拉善地块内发育的白垩纪盆地为一套杂色碎屑岩沉积 ,缺少烃源岩。白垩纪盆地与侏罗纪盆地为大角度叠合 ,存在交错叠合和披盖叠合两种型式 ,披盖叠合型式有利于早期盆地烃源岩的埋藏、成熟 ,是有利的勘探区。

关键词：侏罗纪盆地白垩纪盆地叠合演化北山-阿拉善地区

Crustal P-wave velocity structure of the Longmenshan region and its tectonic implications for the 2.08 Wenchuan earthquake

在线全文

学校读者我要写书评

暂无评论

Crustal P-wave velocity structure of the Longmenshan region ...

Linking the Sulu UHP belt to the Korean Peninsula:Evidence from eclogite,Precambrian basement,and Paleozoic sedimentary basins

中国科学院地质与地球物理研究所第11届（2.11年度）学术年会

作者： LI ZhiWei~(1*),Xu Yi~1,Huang RunQiu~2.Hao TianYao~1,Xu Ya~1,Liu JingSong~1 & Liu JianHua~1 key laboratory of Petroleum Resources Research,Institute of {2. and Geophysics,Chinese Academy of Sciences, Beijing 10002.,China State key laboratory of Geohazard Prevention and Geoenvironment Protection,Chengdu university of Technology,Chengdu 610059,China

The P-wave velocity structure of the crust in the Longmenshan region has been imaged by seismic travel time tomography using local and regional first P-wave arrivals recorded from 2.00 to *** tomographic model provides a way to analyze the deep tectonics of the Longmenshan fault belt and the tectonic implications for the 2.08 M8.0 Wenchuan *** P-wave velocity images indicate that the initial rupture site and focal depth of the Wenchuan earthquake,together with the direction of rupture propagation,closely relate to the crustal structure of the Longmenshan *** Pengguan massif to the west of the Longmenshan fault belt is characterized by high velocity anomalies,suggesting that the crust has a strong strain strength that can accumulate large stresses over a long *** M8.0 Wenchuan earthquake is located at the southwestern end of the Pengguan massif and the western edge of the Sichuan *** collision between the Pengguan massif and the Sichuan Basin becomes the primary reason for the occurrence of the M8.0 Wenchuan *** the north of Wenchuan, the occurrence and propagation of rupture benefit from low velocity anomalies along the Longmenshan fault belt;whereas to the south of Wenchuan,the brittle rupture can occur with more difficulty in relatively weak crust with low *** may be one of the reasons for the absence of aftershocks to the south of Wenchuan,and the rupture induced by the M8.0 Wenchuan earthquake propagating from the north to the south along the Longmenshan fault *** deep geodynamics of the M8.0 Wenchuan earthquake may occur due to the discrepancy of crustal structures on the two sides of the Longmenshan fault belt. Ductile deformation and crustal flow can easily occur in the weak middle-lower crust beneath the Songpan-Garze orogenic belt. The eastward movement of the Tibetan Plateau is obstructed by the rigid lithosphere of the Sichuan Basin,and then the thickening of the middle-lower crust and vertica

关键词： Longmenshan orogenic belt Wenchuan earthquake P-wave velocity Crustal structure travel time tomography

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Linking the Sulu UHP belt to the Korean Peninsula:Evidence f...

Devonian Sea-Level Change Rhythms in South China and Coupling Relationships Among the Earth-spheres

中国科学院地质与地球物理研究所2.07学术年会

作者： Mingguo Zhai~(a,b,*),Jinghui Guo~(a,b),Zhong Li~a,Daizhao Chen~a,Peng Peng~a,Tiesheng Li~a, Quanlin Hou~c,Qicheng Fan~d a Institute of geology and Geophysics,and key {2. of Mineral Resources,Chinese Academy of Sciences,Beijing,10002.,China b Chinese State key {2. of Lithosphere Evolution,China c Graduate university,Chinese Academy of Sciences,China d Institute of geology,Chinese Seismological Bureau,China

Considerable debate on whether and how the Sulu orogenic Belt extends eastward to the Korean Peninsula has remained over the past decade. New results reported here include the following:(1) an eclogite and retrograded eclogite-bearing complex(Hongseong Complex) is discovered in South Korea,in which the eclogite occurs as lenses in circa～810-82. Ma granitic *** zircon dating of the eclogite yields～2.1} Ma for the metamorphic age and～880 Ma for the protolith age;(2. The basement of the Rangnim,Gyeonggi and Yeongnam massifs have affinities to, the basement of the North China Block(NCB).However the Gyeonggi Massif encloses a minor amount of large or small slabs of the Hongseong Complex that are similar to the rocks of the Sulu Belt.(3. Two main Paleozoic basins within the Rangnim and Gyeonggi massifs have a similar Paleozoic tectono-stratigraphy to the NCB.(4) The Imjingang and Ogcheon belts do not exhibit any metamorphic characteristics of collisional orogenic *** on these facts,we propose a crustal-detachment and thrust model and suggest that the collision belt between the Yangtze Block(YB) and NCB(Sino-Korea Craton) is preserved along the western margin of the Korean *** lower part of the UHP metamorphosed lithosphere of the YB was subducted under the Korean Peninsula and not uplifted to the *** lower crust of the YB(the Hongseong Complex) was detached from the subducted lithosphere and thrust over the Korean Peninsula,and inserted into the basement rocks of the Gyeonggi *** upper crust of the YB possibly was detached from the lower crust and overthrusted along the Honam and Chugaryong shear *** Imjingang and Ogcheon belts possibly represent the detached upper crust of YB and their present occurrences are controlled by a Mesozoic strike-slip shear *** these detached lower and upper crustal slabs were strongly deformed during the Late Jurassic and Early Cretaceous tectonic event leading to their present geologi

关键词： Korean Peninsula Sulu Belt Tectonic link Evidences Geotectonic significance

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Acta Geologica Sinica(English Edition) 1997年第4期71卷 370-385页

作者： Gong Yiming,Faculty of Earth Science, China university of Geosciences, Wuhan,Hubei, 43.074Wu Yi,Guangxi Institute of {2., Nanning, GuangxiDu Yuansheng, Feng Qinglai and Liu BenpeiChina university of Geosciences, Wuhan, Hubei, 43.074 Faculty of Earth Science China University of Geosciences Wuhan Hubei 430074 Guangxi Institute of geology Naming Guangxi China university of Geosciences Wuhan Hubei 430074 [?]Gong Yiming Born in October 1958 graduated from the department of geology Wuhan College of Geology in 1981 received his Ph.D. degree in China university of Geosciences (Wuhan) in 1991. He is now a professor of that university and mainly engaged in sedimentary {2. of Chinese {3. belts ichnology (trace fossils) and sequence stratigraphy.

Twenty orthosequences and their corresponding sea-level change (SLC) cycles have been recognized in the Devonian overlying the Caledonian unconformity, of which 9, 5.5 and 5.5 occurred in the Lower, Middle and Upper Devonian respectively. They can be grouped into 4 orthosequence sets, in which the maximum flooding surfaces lie in the sulcutus Zone (D12., perbonus Zone (D13., Middle and Upper varcus Zone (D2.) and gigas Zone (D2.) respectively. Four instant palaeogeographical reconstructions of South China have been made in the Emsian and Givetian. Devonian sea-level change rhythms of South China can be divided into 3.categories: the autorhythmic, the worldwide and regional allorhythmic, and the coupling-rhythmic. They developed respectively in the Famennian, Pragian, Eifelian, Lochkovian, Emsian, Givetian, Frasnian and the F / F (between the Frasnian and Famennian) event. The cause of the worldwide allorhythmic SLC of the Pragian and Eifelian under comparatively dry, warm and tranquil conditions may be related to the pulsating expanding and contracting of the oceanic basin volume or the earth volume pulsation, rather than the common glaciation and plate tectonism. The coupling-rhythmic SLC related to the F/ F event is a sensitive indicator of the interaction between terrestrial and extraterrestrial factors, and coordinated action among the earth-spheres.

关键词： sequence stratigraphy sea-level change rhythm coupling among the earth-spheres instant palaeogeographical reconstruction Devonian South China

Tectonic types and evolution of Ordovician proto-type basins in the Tarim region

在线全文

学校读者我要写书评

暂无评论

Science Bulletin 2007年第S1期 164-177页

作者： HE DengFa1, ZHOU XinYuan2. ZHANG ChaoJun3.& YANG XiaoFa1 1 Energy Resources School, China university of Geosciences, Beijing 100083.2.PetroChina Tarim Oilfield Company, Korla 841000, China 3.Research Institute of Petroleum Exploration and Development, PetroChina, Beijing 100083. China

The Ordovician system is an important target for exploration in the Tarim Basin. Restoration of the Ordovician tectono-depositional environment is a key basis for the study of the structural development history in Tarim block and the prediction of the favorable Ordovician reservoir belts (zones). Based on the surrounding tectonic settings, the litho-facies and sedimentary fill, the palaeo-geography, palaeoclimate and palaeo-ecology, and the structural deformation and magmatic eruptions, in this paper we combine the sedimentary fill in the basin with the development of the surrounding {2. belts and re-build the proto-type basins of the different Ordovician periods. During the Ordovician period, the Tarim region was characterized by the composite of the interior cratonic depression with the peripheral cratonic depression. The interior cratonic depression in the central and western parts is mainly the depositional area of the platform facies while the peripheral cratonic depression in the eastern part is mainly the zone of deepwater basin facies, with the slope acting as the transition belt between them. During the Late Ordovician period, the closure of the Northern Kunlun Ocean and destruction of the trencharc-basin system in the Altyn Tagh region put the southern part of the Tarim block under compression and uplifting and turned the central and western parts of the carbonate platform into the mixed depositional continental shelf. The eastern region of the basin had the over-compensated flysch sedimentation with huge thickness, marking the drastic turn of the basin nature. The basin tectonic framework turned to the south-north differentiation of the Silurian period from the east-west differentiation of the Ordovician period.

关键词： Ordovician period proto-type basin composite basin basin evolution Tarim block

SYNCONVERGENT, DUCTILE N-DIRECTED SHEARING ON THE WESTERN MARGIN OF THE NANGA PARBAT SYNTAXIS, N. PAKISTAN

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

地学前缘 2000年第S1期7卷 128-129页

作者： Tom Argles 1, Mike Edwards 2. Gavin Foster 1(1 department of Earth Science, The Open university, Walton Hall, Milton {2.n es MK7 6AA, UK, E\|mail: t.w.argles@open.ac.uk 2.Institut fur Geologie, TU Bergakademie Freiberg, Berhard\|von\|Cottastrasse

A key issue in orogenic research today is the recognition and explanation of normal faulting in the heart of collisional mountain {2.. The active Himalayan system remains an ideal locality for studying this phenomenon, both as E—W synconvergent extension of the Tibetan plateau and normal motion on the South Tibetan Detachment System (STDS). However, these processes are difficult to correlate with the evolution of the northwest Himalaya, particularly the Nanga Parbat syntaxis where a Neogene tectono\|thermal overprint partially obscures the early collisional history. An integrated programme of structural mapping, petrography, thermobarometry and isotopic dating is presented that places important constraints on both the early\| and pre\|Himalayan evolution of the syntaxis. These data include evidence for synconvergent, ductile extension predating syntaxis development, and improved isotopic correlation of the tectonic units with the familiar central Himalayan thrust sheets, building on the work of Whittington et al (1999).Recent studies have focused on the rapid exhumation of the Nanga Parbat\|Haramosh Massif (NPHM) during the last 10Ma, and the related Neogene thermal effects dominating the core of the massif (e.g. Zeitler et al. 1982. 1993.. However, the degree of both structural and metamorphic Neogene overprinting varies within the massif, becoming weaker away from the summit region. In addition, the considerable variation in rock\|type outside the gneissic core results in both strain partitioning and various degrees of metamorphic reworking. Thus several workers (e.g. Wheeler et al. 1995) could reconstruct elements of the early and pre\|Himalayan history from field relations and mineral assemblages virtually untouched by Neogene processes. The eastern margin of the massif, in contrast to the active western margin, has remained largely unchanged during the Neogene, except for essentially passive rotation on the limb of the major syntaxial antiform. The original,

关键词： synconvergent syntaxis extension Himalaya ductile exhumation Nanga Parbat

珠江口盆地番禺低隆起PY2.断层断裂特征及其对沉积作用的影响

在线全文

学校读者我要写书评

暂无评论

海洋地质前沿 2012年第6期28卷 10-14页

作者：薛成张尚锋杜家元张国涛于景维长江大学地球科学学院湖北荆州434023 长江大学油气资源与勘探技术教育部重点实验室湖北荆州434023 中海石油(中国)有限公司深圳分公司广州510240

通过对PY2.断层附近的钻测井及二、三维地震资料研究,运用断层活动速率法发现PY2.同沉积断层在珠江组上段、韩江组和粤海地层沉积时期活动强,在珠江组下段地层沉积时期活动弱,整体上断层活动表现出"阵发性"。断层的"阵发性"活动对沉积... 详细信息

通过对PY2.断层附近的钻测井及二、三维地震资料研究,运用断层活动速率法发现PY2.同沉积断层在珠江组上段、韩江组和粤海地层沉积时期活动强,在珠江组下段地层沉积时期活动弱,整体上断层活动表现出"阵发性"。断层的"阵发性"活动对沉积作用的影响类似于阀门对流体的控制,当断层活动弱时,"阀门"开启,沉积物不断向凹陷沉积,断层上下盘地层厚度差异小,沉积相带连续并延伸远;当断层活动强时,"阀门"关闭,沉积物大部分沉积在下降盘产生的可容纳空间内,断层上下盘地层厚度差异大,沉积相带变化明显,断层的活动对沉积的阻挡作用显著。目前大多数的研究停留在同向同沉积断层对沉积作用的影响上,而缺少对反向同沉积断层的探讨。本文为研究反向同沉积断层对沉积作用的影响提供了一个良好的例证。

关键词：番禺低隆起同沉积断层新近系断层活动性沉积特征