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阿根廷安第斯前陆构造反转区的油气聚集
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作者 G.O.Peroni 白振瑞 《石油地质科技动态》 2002年第6期1-15,共15页
圣贝尔纳多构造带横穿阿根廷巴塔哥尼亚高原的安第斯山边缘地区,经历了多次变形。该构造带显然与南美大陆板块醅的褶皱冲断带不相连。它是一个走向NNW-SSE、大约600km长和100km宽的条形地带。该地区的断层和褶皱涉及前寒武-中古生界... 圣贝尔纳多构造带横穿阿根廷巴塔哥尼亚高原的安第斯山边缘地区,经历了多次变形。该构造带显然与南美大陆板块醅的褶皱冲断带不相连。它是一个走向NNW-SSE、大约600km长和100km宽的条形地带。该地区的断层和褶皱涉及前寒武-中古生界的基底、上古生界-侏罗系陆源到海相沉积和火山成因楔体以及克拉通内圣豪尔赫盆地的白垩系非海相沉积层。白垩系沉积盖层的构造主要是与东倾和西倾逆断层伴生的不连续狭窄箱状褶皱。油气发现局限于森格尔河和德赛阿多河之间未遭破坏的低洼地区,那里的背斜构造形成于原有正断层和走滑断层的收缩性活化。这里的石油生成于在半咸到碱性层状湖泊中形成的基本源于藻类的无定形有机物质(TOC1%-3%,重量百分比)。模拟结果表明,生油期是110-30Ma。低比重度原油是由生物降解和冲刷造成的。储集岩由冲积、河道和曲流河相以及重叠砂席构成。叠置的油层之间夹有页岩,降 低了油田的连通性。在火山碎屑颗粒格架中存在自生的沸石和脱玻的火山玻璃副产物,降低了储层空隙度。圈闭形成了侏罗系半地堑在中新世的挤压和反转,表现为局部凸起(pop-up)、褶皱和轻微反转的构造。局部隆起使部分圈闭遭受剥蚀和破裂。在油气运移的第一阶段,一个正常充注的油气系统以及垂向排驱促进了油气运移。砂岩和凝灰质页岩一般都不利于油气运移。晚期构造反转过程促进了油气的散失。 展开更多
关键词 阿根廷 安第斯 前陆构造 反转区 油气聚集
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一类有机体系分子内电子转移反应的理论研究 被引量:2
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作者 李顺来 许慧君 李宗和 《中国科学(B辑)》 CSCD 北大核心 1997年第4期325-330,共6页
对1984年Miller和Closs设计的有机分子内电子转移反应体系的反应速率常数进行了直接理论计算研究,获得与实验值接近的结果,理论计算结果进一步证明了体系中反转区的存在.
关键词 分子内电子转移 应速率常数 反转区 有机体系
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Focal Mechanism Solutions and Stress Field Inversion of Moderately Strong Earthquakes in the Northern Tianshan Area
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作者 Long Haiying Gao Guoying Nie Xiaohong Li Yinzhen 《Earthquake Research in China》 2008年第4期374-382,共9页
Using the focal mechanism solutions of 24 moderately strong earthquakes in the northern Tianshan area,we carried out system cluster and stress field inversion analysis.The result indicates that,the focal mechanism sol... Using the focal mechanism solutions of 24 moderately strong earthquakes in the northern Tianshan area,we carried out system cluster and stress field inversion analysis.The result indicates that,the focal mechanism solutions of moderately strong earthquakes are mainly dip-slip reverse faulting in the northern Tianshan area.The principal rupture planes of earthquakes are NW-oriented.It is basically consistent with the strike of earthquake structure in its adjacent area.The direction of the principal compression stress P axis is nearly NS,and its inclination angle is small;while the inclination angle of the principal extensional stress T axis is large.It shows that the regional stress field is mainly controlled by the near-NS horizontal compressive stress.The direction of the maximum principal stress shows a gradation process of NNE-NS-NW from east to west. 展开更多
关键词 Northern Tianshan area Moderately strong earthquake Focal mechanism solution System cluster Stress field inversion
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Origin of Particle Spins, Bosons and Fermions, Compounds of Zero Spin Particles, in Complex Spin Region
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作者 Shaoxu Ren 《Journal of Physical Science and Application》 2017年第3期47-58,共12页
This paper shows: Bosons and Fermions maybe the compounds П of two zero spin particles which are spin-conjugates each other in complex region. There are two kinds of spin-conjugates of zero spin particle: real spin... This paper shows: Bosons and Fermions maybe the compounds П of two zero spin particles which are spin-conjugates each other in complex region. There are two kinds of spin-conjugates of zero spin particle: real spin-conjugate (πReal,π) and imaginary spin-conjugate (πImaginary,π). Using (πReal, π), Bosons and Fermions of Antimatter ПR could be formed, and using (πImaginary,π), Bosons and Fermions of Matter П1 could be formed. 展开更多
关键词 Zero spin particle Casimir Operator real region complex region spin-conjugate real spin-conjugate imaginary spin-conjugate spin-conjugate-composite matter antimatter.
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An improved diagnostic stratocumulus scheme based on estimated inversion strength and its performance in GAMIL2 被引量:11
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作者 GUO Zhun ZHOU TianJun 《Science China Earth Sciences》 SCIE EI CAS 2014年第11期2637-2649,共13页
Based on satellite data and the estimated inversion strength(EIS) derived by Wood et al.(2006), a feasible and uncomplicated stratocumulus scheme is proposed, referred to as EIS scheme. It improves simulation of cloud... Based on satellite data and the estimated inversion strength(EIS) derived by Wood et al.(2006), a feasible and uncomplicated stratocumulus scheme is proposed, referred to as EIS scheme. It improves simulation of cloud radiative forcing(CRF) in the Grid-point Atmospheric Model of IAP/LASG version 2(GAMIL2.0) model. When compared with the original lower troposphere stability(LTS) scheme, the EIS scheme reproduces more reasonable climatology distributions of clouds and CRF. The parameterization partly corrects CRF underestimation at mid and high latitudes and overestimation in the convective region. Such improvements are achieved by neglecting the effect of free-tropospheric stratification changes that follow a cooler moist adiabat at middle and high latitude, thereby improving simulated cloudiness. The EIS scheme also improves simulation of the CRF interannual variability. The positive net CRF and negative stratiform anomaly in the East Asian and western North Pacific monsoon regions(EAWNPMR) are well simulated. The EIS scheme is more sensitive to sea surface temperature anomalies(SSTA) than the LTS. Therefore, under the effect of a warmer SSTA in the EAWNPMR, the EIS generates a stronger negative stratiform response, which reduces radiative heating in the low and mid troposphere, in turn producing strong subsidence and negative anomalies of both moisture and cloudiness. Consequent decreases in cloud reflection and shading effects ultimately improve simulation of incoming surface shortwave radiative fluxes and CRF. Because of the stronger subsidence, a stronger anomalous anticyclone over the Philippines Sea is simulated by the EIS run, which leads to a better positive precipitation anomaly in eastern China during ENSO winter. 展开更多
关键词 stratocumulus scheme AGCM cloud radiative forcing
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