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黄骅坳陷第三系油气成藏体系定量评价

石油与天然气地质 2004年第5期25卷 544-547,602页

作者：陈善勇金之钧刘小平中国科学院地质与地球物理研究所中国石化石油勘探开发研究院北京100083 石油大学盆地与油藏研究中心北京102249

根据油气成藏体系概念和层次分析法基本原理 ,将黄骅坳陷第三系划分为 4.成藏体系和 16个亚成藏体系 ,初步建立了成藏体系的定量评价方法。优选出烃源体、输导体和圈闭体所涉及的 2 2个地质单因素 ,包括有机碳含量、有机质类型、成熟... 详细信息

根据油气成藏体系概念和层次分析法基本原理 ,将黄骅坳陷第三系划分为 4.成藏体系和 16个亚成藏体系 ,初步建立了成藏体系的定量评价方法。优选出烃源体、输导体和圈闭体所涉及的 2 2个地质单因素 ,包括有机碳含量、有机质类型、成熟度、源岩厚度、供烃面积系数及生烃强度、断层、储层、不整合面及其空间组合等 ,定量评价了黄骅坳陷成藏体系和亚成藏体系的元素及成熟度。结果表明 ,黄骅坳陷 4.成藏体系的烃源体、输导体和圈闭体三元素存在明显的差异 ,中部歧北成藏体系各元素发育条件最好 ,其次是中部歧南成藏体系 ,南部成藏体系较差 ,北部成藏体系最差。中部歧北成藏体系和中部歧南成藏体系成熟度较高 ;南部成藏体系和北部成藏体系成熟度较低。

关键词：成藏体系元素成熟度定量评价黄骅坳陷第三系

Lower Velocities beneath the Taihang Mountains,Northeastern China

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Lower Velocities beneath the Taihang Mountains,Northeastern ...

中国科学院地质与地球物理研究所2007学术年会

作者： Xu Chang,Yike Liu,Jiankun He,and Hongchuan Sun Institute of geology and geophysics Chinese Academy of Sciences Beijing,100029,China Yangtze University Jingzhou,China department of geology and geophysics University of Utah Salt Lake City,Utah,84.12

We used regional P-wave arrival times to invert for 3D velocity structures beneath the Taihang Mountains,which are bordered by the intensely active zones of the Shanxi rift to the west and the eastern plain basin to the east in the North China Block.P-wave velocities show that low velocities(- 1.0 to -3.0%) are focused at depths of～15-20 km beneath the Taihang Mountains,similar to those beneath the active zones of the Shanxi rift and the eastern plain basin,If the lower velocity is representative of weakness in the underlying crust,there our results indicate that the Taihang Mountains might be potentially active,because the structure patterns are similar to their bounding active *** seismic research,therefore, should strongly focus on the Taihang Mountains.

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Mesozoic Multi-phase Magmatism and Gold Mineralization in the Early Precambrian North China Craton,Eastern Hebei Province,China:SHRIMP Zircon U-Pb Evidence

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Mesozoic Multi-phase Magmatism and Gold Mineralization in th...

中国科学院地质与地球物理研究所2008学术年会

作者： Laicheng Miao,~1 Key Laboratory of Mineral Resources,Institute of geology and geophysics,Chinese Academy of Sciences,Beijing 100029,China Yumin Qiu,~2 Center for Global Metallogeny,department of geology and geophysics,University of Western Australia,Nedlands 6907,Australia Weiming Fan, Key Laboratory of Mineral Resources,Institute of geology and geophysics,Chinese Academy of Sciences,Beijing 100029,China. and Fuqin Zhang Key Laboratory of Mineral Resources,Institute of geology and geophysics,Chinese Academy of Sciences,Beijing 100029,China

The early Precambrian North China craton(NCC) in eastern Hebei Province(also known as the Jidong area) was intruded by granitic batholiths and plutons spatially associated with gold deposits. No consensus has been reached regarding timing and tectonic setting of the gold deposits,chiefly due to the lack of reliable geochronological *** gold deposits in the district are localized by NE-striking faults within granite plutons and/or nearby Archean amphibolites,as well as in Proterozoic sedimentary *** mineralizations in the area are characterized by quartz(±albite) veinand sulfide-disseminated styles;both types of ores have relatively low sulfide contents(4. mol%.Fluid inclusion homogenization temperatures are between 24. and 4.0℃,and estimates of the trapping pressures vary significantly from 0.5 to 3.7 *** isotope(O,H,S,C,and Pb) data from these deposits indicate a major magmatic component in the mineralizing fluids and the ore-forming materials,with a partial contribution by Archean host rocks,suggesting that these deposits are basically intrusion-related. SHRIMP zircon U-Pb geochronology of the gold-hosting granitic intrusions,in combination with previous Ar-Ar and Rb-Sr dates on hydrothermal minerals(e.g.,sericite),indicates that there was no Archean gold mineralization,but instead suggests that at least three episodes of granitic magmatism and associated gold mineralization took place during the Mesozoic.

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Reverse time migration of multiples for subsalt imaging

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Reverse time migration of multiples for subsalt imaging

中国科学院地质与地球物理研究所第11届（2011年度）学术年会

作者： Yike Liu,Xu Chang,Degang Jin,Ruiqing He,Hongchuan Sun,and Yingcai Zheng 1 Chinese Academy of Sciences,Institute of geology and geophysics,Beijing,CN. 2 Sichuan Geophysical Company,CNPC,Chengdu,China. 3 Paulsson Inc.,usa,Los Angeles,Calif.,usa. 4.University of Utah,currently at ExxonMobil,Houston,Tex.,usa. 5 Massachusetts Institute of Technology,department of Earth,Atmospheric,and Planetary Sciences,Cambridge,Mass.,usa.

Some hydrocarbon reservoirs are trapped beneath salt bodies,where seismic imaging is greatly challenged due to poor *** reflections have different propagation wave paths from primary reflections and thus can be used to complement the illuminations where primary reflections from beneath the salt are not ***, migration of multiples can sometimes provide better subsalt images compared to conventional migration which uses primary reflections *** this paper,wepropose to modify conventional reverse time migration so that multiples can be used as *** new approach replaces the impulsive source wavelet with the recorded data containing both primaries and multiples and uses predicted multiples as the input data instead of primary *** the reverse time migration process,multiples recorded on the surface are extrapolated backward in time to each depth level,and the observed data with both primaries and multiples are extrapolated forward in time to the same depth levels,followed by a crosscorrelation imaging condition. A numerical test on the Sigsbee2B data set shows that a wider coverage and a more balanced illumination of the subsurface can be achieved by migration of multiples compared with conventional migration of primary *** exampledemonstratesthatreverse time migration of multiples might be a promising method for complex subsalt imaging.

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三维波动方程全倾角偏移

同济大学学报（自然科学版） 1994年第2期22卷 192-197页

作者：金胜汶马在田同济大学海洋地质与地球物理系

三维波动方程全倾角偏移成像法对于构造复杂和速度变化较剧烈的地震资料能获取理想的成像效果．本文利用“方向导数法”和“时间步长分裂法”，不对方程作任何近似，可将浮动坐标系下的波动方程简化成易于求解的１５°偏移方程形式．为... 详细信息

三维波动方程全倾角偏移成像法对于构造复杂和速度变化较剧烈的地震资料能获取理想的成像效果．本文利用“方向导数法”和“时间步长分裂法”，不对方程作任何近似，可将浮动坐标系下的波动方程简化成易于求解的１５°偏移方程形式．为了保持时间和空间方向满足两阶精度以及提高计算速度，在构造差分方程时运用Ｐ—Ｒ交替格式，使之局部地分裂成二维求解方程，从而实现了三维全倾偏移．理论记录和实际资料的处理都证实了该方法的正确性和高效性．

关键词：三维偏移法波动方程地质构造

Generation of Muscovite/ Two-Mica Granil and Intracontinental Subduction

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Journal of Earth Science 1994年第1期13卷 1-7页

作者： Deng Jinfu Zhao Hailing Lai Shaocong Liu Houxiang Luo Zhaohua(department of geology, China University of Geosciences, Beging 100083)

This paper discusses generahon of muscovite/ two-mica granite and their genetic relations to intracontinental subduchon. The major constraints of the formation of muscovite granite,taking Higher Himalaya for an example, are demostrated from multiple-aspects of geology,petrology, geochemistry, experimental petrology and geophysics .We suggest that the magma generates in the Main Central Thrust (Mad ) (30-35km ), and has higher temperature of 750-800℃, H2O-undersatorated and large capability to be emplacement into the sedimentary covers to form real igneous intrusion, rather than generster at the base of the thickened continental crust and has lower temperature of 600-650 ℃, H2O-saturated and less capability of emplacement to form intrusion in silo/semi-situ. A reasonable model of thermal structure of the intracontinental subduction zone is presented. Combining the possible material of magma source and the experimental phase relatioedps, we demonstrate in detail that the main magma source of the muscovite granitc is the pelitic rocks at top of the subduedon slab at the adjacent region of the subduction end. In addition, the H2O-saturate and wear saturated granitic magmas are formed at the wedge comer of the overlying slab. A new conclusion is reached that the generation Of muscovite granite is a result of the intracontinental subduction, in other words,the development of muscovite granite is a main signature to recognize the indacontinental subduction zone.

关键词： muscovite granite magma generation indacontinental subduedon Higher Himalaya.

中国东部燕山期高原的发育及对矿产和油气资源评价的启示

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石油实验地质 2002年第1期24卷 3-12页

作者：吴根耀陈焕疆马力徐克定中国科学院地质与地球物理研究所北京100029 同济大学海洋地质与地球物理系上海200092 中国石化集团公司江苏油田江苏江都225261 中国石油天然气总公司浙江石油勘探处浙江杭州310013

作者首次提出苏皖地块是特提斯演化阶段一个独立的构造单元。基于火成岩及变质岩和古地磁的研究成果认为苏鲁洋在晚侏罗—早白垩世最终闭合 ,苏皖地块与华北克拉通碰撞而出现高原 ,因而中国东部燕山期高原性质上应属碰撞高原。文中还讨... 详细信息

作者首次提出苏皖地块是特提斯演化阶段一个独立的构造单元。基于火成岩及变质岩和古地磁的研究成果认为苏鲁洋在晚侏罗—早白垩世最终闭合 ,苏皖地块与华北克拉通碰撞而出现高原 ,因而中国东部燕山期高原性质上应属碰撞高原。文中还讨论了高原边缘的冲断 -推覆带和其内部的复杂结构 (包括沿主碰撞 -剪切带发育的相对高峻地带和相对开阔的山间磨拉石盆地 ) ,认为该高原是规模宏伟的东亚燕山造山系中变形变质相对弱的部分。高原自早白垩世末起坍塌 ,晚白垩世是东亚燕山造山系的全面坍塌期 ,第三纪时燕山期高原已不复存在。强烈的岩浆活动不仅使苏皖地区 ,也使胶东、小秦岭、赣东北等地的燕山期成矿具明显的区域专属性。晚中生代—新生代的构造事件造成苏皖—黄海地区岩石圈强度低、地热梯度高。

关键词：中国东部燕山期高原发育矿产油气资源评价

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塔里木古生代原型盆地分析的油气勘探意义

石油与天然气地质 2002年第3期23卷 224-228页

作者：徐旭辉同济大学海洋地质与地球物理系

塔里木地区古生代依据构造热体制变化 ,可以划分为离散型和会聚型两大类 5种不同的原型盆地。早震旦世为裂陷槽 ;晚震旦世至早奥陶世发育边缘坳陷 ;中、晚奥陶世—泥盆纪 ,洋盆消减、闭合、碰撞 ,在此背景下分别孕育了塔中隆起和塔北隆... 详细信息

塔里木地区古生代依据构造热体制变化 ,可以划分为离散型和会聚型两大类 5种不同的原型盆地。早震旦世为裂陷槽 ;晚震旦世至早奥陶世发育边缘坳陷 ;中、晚奥陶世—泥盆纪 ,洋盆消减、闭合、碰撞 ,在此背景下分别孕育了塔中隆起和塔北隆起 ;石炭纪—二叠纪 ,整体处于拉张环境。原型盆地不同 ,其油气勘探意义不同 ,处于被动大陆边缘的满加尔坳陷具有较大的沉降、沉积速率 ,发育有良好的生油气母质。以塔中、塔北隆起为代表的古隆起 ,为海西期油气运聚的主要指向区 ,具有良好的储盖条件 ,是油气重要的聚集场所。

关键词：古生代原型盆地油气勘探塔里木地区构造-热体制构造单元

India Collided with Asia at Least 72 Ma:Recognition of An Underfilled Foreland Basin in Central Himalaya

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地学前缘 2009年第S1期16卷 271-272页

作者： Xiumian Hu,Jiangang Wang,Luba Jansa,Fuyuan Wu,Jinhai Yu 1.department of Earth Sciences,Nanjing University,Nanjing 210093,China. 2.Geological Survey of Canada-Atlantic,Dartmouth,N.S.,Canada 3.Institute of geology and geophysics,Chinese Academy of Sciences Beijing 100029,China

The Himalayan peripheral foreland basin developed when India and Asia *** studies in the Himalayan foreland were mostly concentrated on Neogene continental clastic sedimentation in sub-Himalaya or Paleogene shallow ma... 详细信息

关键词： Himalayan foreland underfilled foreland basin peripheral foreland