最新刊期
卷 9 ， 期 4 ， 1988
- 摘要：This article introduces a further interpretation method of ready gravita-tional exploration data. The example provided by the author shows that un-der certain condition, the forms and depth of some discontinuity surfacescan be inferred based on gravitational exploration data.574|395|0更新时间：2023-05-30
- 摘要：由地质矿产部石油地质海洋地质局组织的赴朝临津群地质考察团一行4人,于今年4月22日至5月6日对朝鲜中部西起松林,经兔山、法洞至东海岸元山一带进行了野外地质观察,其目的是了解朝鲜中部出露的志留泥盆系展布及其西延情况,以便同我国胶东地块的"蓬莱群"进行联系类比,继而研究下扬字地块北缘划界和胶东地块归属问题.710|444|0更新时间：2023-05-30
- 摘要：Normal faults that controlled the formation and evolution of the Meso-Cenozoic fault-deressed basins in East China appear to be compresso-shear X-shaped faults which resulted from horizontal compression of the Kula andIndia Plates and crustal gravity.They are developed from the depths of crustand possessed behaviours of compression and translation. Since the Cretaceous, especially the Eocene epoch, the mainland of Chinawas compressed by northeastward compression from the Xilong Projectivebody of the India Plate, thus a series of northeast convex-arc compressedzones were formed in southwest China on the north and east sides of thezones, a compresso-shear structural belt was resulted respectively to consti-tute a huge X-shaped structure in plane. The north sinictral shearing belt runsalong a line of west Kulun, Altun, Yinshan and Yanshan Mountains in NEEstretch; the east belt with evidences of dextral shearing extends from theBeibu Gulf in the south to Yilan-Yitong in the north throuogh Hunan and theNorth China Plain in NNE striking. Once the upper crust overlying the middle and lower plastic ones of thecrust breaks, stress state on the hanging wall respoding to a cantilever withboth underlying plastic materials as elastic base and the fault plane as freeend under the combined efforts of both its own gravity and planar sliding.As a consequence, the nearer to the fault plane, the greater the subsidingamplitude, thus forming a listric basin. The basement of the basin subsidedcontinuously to cause the underlying plastic materials to flow towards theheading wall or the elevated end of the hanging wall, which resulted in thestructural framework of uplifts associated with basins. When the crust becamethinner due to the lateral translation of the plastic materials beneath thebasin, the asthenosphere materials must be upwarped and the lower materialsof the lithosphere were compressed towards sides under gravity equilibrium,making the top surface of the asthenosphere to be mirror symmetrical to thebottom surface of the basin. Therefore, not that mantle diapirism is the causeof the formation of faulted basin but that the result of the formation. Theabove mentioned inference is also supported by earthquake activities.557|463|0更新时间：2023-05-30
- 摘要：四川石油管理局根据该局地质调查处的地震勘探成果,在川中至川南过渡带所钻的包24.23井,不久前分别试获工业性气流.实钻结果,目的层深度误差仅为地震预报深度的0.69%和0.88%,断层误差均在10m以内.这就为加快川中至川南过渡带的油气勘探步伐提供了有利条件.644|505|0更新时间：2023-05-30
- 摘要：Binnan Oilfield is situated at the northwest margin of the Dongying Sag in the Jiyang Depression. The reservoir is an assemblage of andesiticbasalt lava and breccia with vesicles and fractures as reservoir spaces.The block trap consists of overlying source rocks and tensil faults. Thepool is a complex massive fault-block one composed of several amall blockswith similar oil-water boundary, its buried depth is 1700-1800m, andthe overlying thick dark beds and the neighbouring Lijin oil-generating sagserve as its oil source. The volcanic rock in this area is a composite volcanic massif composedof seven craters. It was formed by multi-eruption and multi-overflowduring the Oligocene,covering an area of about 20 km2 and overlying on Bin-338 horst in beded pattern with a thickness of 2-63m. To study the reservoir rock, the volcanic rock can be divided into 4facies such as low vesicle lava, vesicular lava (A1, A2), welded and unwel-ded volcanic breccia (B1, B2) according to vesicle content, breccia struc-ture and welded feature. Among them, A2, B2 are fine vesicle-fracture re-servoir rock facies. The lava-clastic cone are divided into 3 facies zones due to the distribu-tion of lithofacies for the need of hydrocarbon exploration: crater facieszone (Ⅰ), middle distance volcanic slope facies zone (Ⅱ) and distancevolcanic slope facies zon(Ⅲ). It has teen shown by physical property analysis of lithofacies assemblage and well testing data that the type-Ⅱfacies zone is a favourable reservoir facies zone. Volcanic facies and structural position are controlling factors for theenrichment and productivity of fault-block massive volcanic oil pool theposition near the fault in the middle-distance volcanic slope facies zone isthe very place of hydrocarbon enrichment and productivity.690|332|0更新时间：2023-05-30
- 摘要：第二届亚非地区石油地球化学和勘探国际会议(Second Conference on Petroleum Geoche-mistry and Exploration in the Afro-Asian Region)已于1988年8月28日至30日在北京科学大会堂举行.中国科学院兰州分院副院长范璞研究员担任本届会议主席.来自亚洲、非洲以及大洋洲、欧洲、北美洲的学者和有关人士参加了会议.801|469|0更新时间：2023-05-30
- 摘要：The high conductivity of high conductive mudstone is mainly caused by sali-nity difference, and has less relation with the chemical composition and claymineral of mudstones.The deposition of the mudstone is not a simpleprocess of the lake enlargement, but a process of enlarging-contracting andreenlarg-recontracting.In the meantime, the depth of water and the nature ofmediums were changed correspondingly.This shows the control actions of ancientclimate and direct runoff under the stable structural background.632|396|0更新时间：2023-05-30
- 摘要：Based on chemical composition and stable carbon isotope data, this pa-per discusses the origin of CO2N2,He and gaseous hydrocarbon in SanShuiBasin, Guangdong Province. The CO2 mainly comes from deep-earth,N2 is the product of biochemical process and He is the product of the decay of radio-element. Gaseous hydrocarbon includes biochemical methane and thermodegr-adation hydrocarbon gas.593|601|0更新时间：2023-05-30
- 摘要：地质矿产部西北石油地质局在塔北沙雅隆起施工的一批探井,最近相继试获高产油气流.这些不同地域、不同构造的新发现,再次显示了沙雅隆起巨大的油气潜力;而中生界油层的发现,则是塔北找油的又一重大突破.633|527|0更新时间：2023-05-30
- 摘要：Aromatics and heterocyclic compounds of crude oils and source rocks fromTertiary saline facies of Jianghan Basin in Hubei, Dongpu Depressionof Henan and Jinxian Sag of Hebei have been identified by GCMS techni-que. Crude oil of the Dongpu Depression is rich in phenanthrene, naphtha-lene and chrysene, and is similar to that of fresh water lake facies; the crudeoil and source rocks of the Jinxian Sag are dominant in dibenzothiophe-ne, and highly sulfur-bearing oil from the Jianghan Basin is characterizedby abundant Long-chain alkylthiophene and thiolanes. The relative compo-sition of fluorenes, dibenzofurans and dibenzothiophenes may be used asgood markers of depositional environment. Finally the article discusses therelation between some indexes of aromatics and maturity of crude oil.685|408|0更新时间：2023-05-30
- 摘要：Fault that show compresso-shear pattern in plane and intersecting inprofile is called compresso-shear vertical-intersecting fault. Within the studyarea, since the sides of major mountains and uplifts were controlled bycompresso-shear vertical-intersecting faults, a structural framework whicharranged alternately in fault-uplifts and fault-depressions was formed under theeffect of unified stress field of the plateau. In the east part of the region, thefault uplift-fault depressed zone resulted by NWW (Xiyu System) compresso-shear vertical - intersecting faults and four uplift - depression alternatedzones resulted by NNW (Hexi System) dextral shear-compression verticalintersecting faults conjoined to form four dextro-diagonal basin zones asWuwei-Lintao, Minle-Hualong, Jiudong-Xinghai,Jiuxi-Gjarring and Ngoringlakebasin zones. In the west, NWW stretched compressive fault uplift-faultdepressed zone and NEE striking conjugated compressive sinistral diagonalzone (Altun Mountains), conjoined to form Kumkuli-Jiuxi sinistral diagonalbasin zone. The Jiuxi Basin is a ladder-shaped basin placed at the joint partof two conjugated shear-compressive zone whereas the Qaidam Basin is a hugecomplex fault-depressed basin which is between two shear-compressive zonesduring the Meso-Cenozoic. The formation regime of the basins is not thatof rift, but that of compresso-rift which is between faults dipping backeach other. In the Qaidam Basin, a structural framework which is arrangedalternately in uplifts and depressions is also formed by the above men-tioned vertical-intersecting faults and it controlled the evolution of the basinand also the generation.accumulation of hydrocarbon. The Qaidam landmasswas disintegrated in the Indo-China Epoch,and a piedmont fault-depressionwith faults in marginal areas and overlaps in its inner part was formed. Inthe early stage, its subsidence center and depocenter was in the north (T,J, K) and west (J, K) margin. As the compression of the Indian Plateenhanced, these centers transfered gradually to the central (N2) and eastparts of the basin.649|398|0更新时间：2023-05-30
- 摘要：The andesite in north Alsen was formed by at least 12 magmatic eruptionsand 3 volcanic explosions. The lava beds of each eruption can be dividedinto 2-3 belts, and the reservoirs are mainly distributed in 1-2 belts of theupper part. Pores are developed at the main flow line of eruptive subfacies,the eruptive minor facies zone near the crater and structural topes, composedfour kinds of reservoir rocks: lava-flow autoclastic rocks, andesite conglome-rate, vesicular-amygdaloidal andesite and compact massive andesite, andconstituted seven kinds of pores and three pore assemblages. These reservoirsare characterized by low porosity-permeability, poor porous texture, highanisotropy. Original aqueous satuation is up to 89% and aqueous exploitaionstarted at the very beginning.681|458|0更新时间：2023-05-30
- 摘要：The formation pressure in the Dongpu Depression falls into three zonesin vertical direction: the normal hydrostatic pressure zone, the transitionalpressure zone and overpressure zone. The area of highest excess pressure issituated in the east sag zone. Formation water flows generally from medium-deep level of the centers of the sags to the marginal zones of the depres-sion, thus forming a typical centrifugal percolation system. The zones andareas of hydrodynamic environment in this region are discussed.637|421|0更新时间：2023-05-30
- 摘要：The analysis of sedimentary history indicates that, paleocontinental mar-gin in South China underwent multistage plate tectonic evolution of rift, pas-sive margin and clousure orogeny from Late Presinian to Silurian. A series of grabens stretching NE developed during the rift stage(Presinian-Early Sinian). they were filled with a series of coarse clastic rocksmainly by gravity flow and intercalated beds of basaltic volcanic breccia whichbelongs to A- series or T-series on the diagram of Na2O+K2O versus SiO2and tuff. Isolated carbonate platforms and ambient deeper-water basins weredeveloped inside the young passive margin(Middle Sinian-middle Early Camb-riam), and then sedimentary filling made it an extensive shallow-water car-bonate platform: deep-water starved basins appeared rapidly after the rifting. In the outer side of the young passive margin, only silicalite of tens ofmeters thick was developed. Matured passive Margin(late Early Cambrian-Early Ordovician) was characterized by the development of a huge carbona-te wedge along the shelf break zone. In the outer shelf and shelf margin,algal reefs and carbonate banks usually developed well: the associationof slope and slope-toe was dominated by various kinds of gravity flow se-diments in the early stage and was characterized by contourites in the latestage; pelagic laminated marls and shales developed in the basin. Ano-ther important character was that the shelf margin migrated towards sea,leading to distictive prograding sedimentation on the slope. During theclousure orogeny stage of the Middle Ordovician-Silurian, the direction ofsediment transportation changed opposite, and coarse clastics prograded pro-gressively from southeast to northwest even overlapped onto the central partof the paleo-Yangzi Plate. This process formed a shallowing-upward se-quence which composed of a thick clastic rock that changed from turbidites inbottom to coastal sediments in top till continental deposits. This orogenyfinally ended up with the widespread uplift in the end of the Silurian.793|464|0更新时间：2023-05-30
- 摘要：Kuluketage Trough is located at the northeast margin of Tarim Massif.The turbidity deposits of Ordovician System are found in Qiaoerqiaoke andNanyaerdang Mountains to the south of Xindi fault in the trough and havethe relict thickness of 1797.3-2761.0 m. The turbidity deposits can be divi-ded into marginal submarine fan and trough turbidity. The turbidite with Bou-ma Sequence is typical, whereas the lenticular or massive sandstone andgravelstone of fan channel deposits are not typical. The turbidity depositsare composed of three kinds in vertical-advanced, contracted and complex se-quences. Two complete turbidity cycles were developed in the Ordovician: thefirst one began with the advanced sequence of the submarine fan in the latestage of the Early Ordovician and ended with contracted sequence in the endof the Middle Ordovician;the second cycle which developed in the LateOrdovician began with the complex sequence of the advance-contracted sub-marine fan in the early stage and ended with the trough-basin turbidity inthe late stage.709|651|0更新时间：2023-05-30
- 摘要：Cambrian carbonate rocks in Tongreni-Fenghuang-Sandu-Danzhai regionbelongs to front slope facies of platform, and is in optimal position for mer-cury and oil accumulation. The diagenesis of the carbonate rocks include bio-genic agency, cementation, compaction, early-stage dissolution,neomorphsmi,dolomitization, pressure solution, metasomatism and late-stage dissolution.The early-stage dissolution and dolomitization took place in the Devonian-Carboniferous Periods and are favourable for oil accumulation; the latestage dissolution happened in Late Cretaceous and is favourable for mercuryaccumulation.689|425|0更新时间：2023-05-30
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