松辽盆地南部增盛断陷油气勘探前景分析

针对增盛断陷研究程度低且未实现油气勘探突破的现状,开展了沉积特征及油气地质成藏条件系统剖析。研究结果表明:增盛断陷发育有以半深湖或浅湖为背景的扇三角洲-湖泊-湖底扇沉积体系,在沙河子组形成了一定规模的泥质中等气源岩和特低孔、低渗碎屑岩储集层,在营城组形成了特低孔、特低渗碎屑岩储集层,并构成了下生上储型、上生下储型和自生自储型三类生储盖组合,具有一定的油气勘探前景;重点勘探层位是沙河子组,兼探层位是营城组,有利勘探目标是斜坡带下端的砂体上倾尖灭带。     

吐哈盆地台南凹陷二叠系充填特征及其研究意义

以高分辨率层序地层学为指导,结合台南凹陷幕式构造演化特征,利用岩心观察、试油数据、地球物理及化学数据等,对台南凹陷二叠系进行了层序地层分析。研究表明研究区二叠系层序地层充填特征、烃源岩和储层分布受控于幕式构造演化,具有明显阶段性。断陷盆地结构特征控制着岩性叠加样式和沉积展布：LSC1沉积时期,南部觉罗塔格山脉崛起,北部陡坡带发育扇三角洲和水底扇沉积,南部缓坡带发育辫状河三角洲沉积体系;LSC2沉积时期,西部鲁西凸起和东部塔克泉凸起逐渐形成,南部物源减弱,东西物源逐渐占主导地位;LSC3沉积时期,北部博格达山脉崛起,地层南北向掀斜,北部物源逐渐发育,断陷短轴方向以扇三角洲沉积体系为主,长轴方向以扇三角洲沉积-辫状河三角洲沉积-湖泊沉积逐渐过渡。分析台南凹陷层序地层叠加样式对烃源岩和储层的控制作用后认为：LSC2水进体系域晚期和高水位体系域早期发育的大段泥岩为有利烃源岩,其上部LSC3低水位体系域发育的大套砂岩为油气主要储集层段。     

闽西南-粤东北成锰特征及优质氧化锰找矿方向

闽西南-粤东北地区为重要次生氧化锰成矿区,而优质氧化锰矿则主要分布于闽西南地区,其成矿在时空上、形成条件及产出规律等多方面具有明显 特征,据此总结出优质氧化锰6字("盆"、"层"、"断"、"溶"、"体"、"盖")找矿模式.     

苏北溱潼凹陷非线性动力学特征浅析

混沌动力学研究提出的方法，可以从观测数据角度重建系统的演变规则。本文在扼要介绍非线性数学模型反演理论的基础上，采用时序资料重建复杂系统动力学特征的方法，求得苏北溱潼凹陷演化的非线性动力学方程，并对系统Ｌｙａｐｕｎｏｖ指数、熵及Ｌｙａｐｕｎｏｖ维数的变化特征和溱潼凹陷演化过程的混沌特征进行了研究和初步分析，为分析盆地演化特征提供了方法。系统信息维的变化特征，反映了滤潼地区断陷阶段活动剧烈、凹陷阶段活     

松花江地层区古生代地层

以松花江地块为基础，论述了早寒武纪世上叠盆地局限海沉积、中奥陶世裂陷火山－沉积及晚古生代三个裂陷槽沉积的地层发育特征。     

广东永梅坳陷南段成矿区构造特征及找矿方向

永梅坳陷南段是粤东地区重要的成矿区，银铜多金属矿床的产出严格受地洼阶段形成的断裂构造控制；通过对该区构造层与成矿关系研究，阐述了成矿的构造基本特征和地洼阶段构造活动控矿的规律，指出了找矿方向。     

Tancheng－Lujiang Fault System： Its Characters and Control on Oil－Gas Distribution in Eastern China

Ｔａｎｃｈｅｎｇ－ＬｕｊｉａｎｇＦａｕｌｔＳｙｓｔｅｍ：ＩｔｓＣｈａｒａｃｔｅｒｓａｎｄＣｏｎｔｒｏｌｏｎＯｉｌ－ＧａｓＤｉｓｔｒｉｂｕｔｉｏｎｉｎＥａｓｔｅｒｎＣｈｉｎａＣｈｅｎＱｕａｎｍａｏ；ＬｉａｎｇＸｉａｏｄｏｎｇ；ＺｈａｎｇＧｕａｎｇｙａ；...     

Effect of hydrolysed aluminum(III) and chromium(III) cations on the lipophilicity of talc

Liquid-liquid extraction and electrokinetic studies show that both the talc particles and the isooctane droplets are affected by the presence of hydrolysable metal species of Al(III) and Cr(III). The inherent lipophilicity of talc is unchanged by the hydroxo complexes of these metal species, while positive shifts in zeta potentials of talc and isooctane take place due partly to the strong adsorption of these hydroxo complexes. In the pH range where the hydroxide precipitates, the talc particles are rendered hydrophillic between the precipitation pH and the point-of-zero charge of the metal hydroxide. This hydrophile-lipophile transition of talc in the isooctane-water system relates to heterocoagulation among talc particles, isooctane droplets and hydroxide precipitates.     

Inversion of breakout data from inclined boreholes for stress state of the upper crust in Jizhong depression

ＩｎｖｅｒｓｉｏｎｏｆｂｒｅａｋｏｕｔｄａｔａｆｒｏｍｉｎｃｌｉｎｅｄｂｏｒｅｈｏｌｅｓｆｏｒｓｔｒｅｓｓｓｔａｔｅｏｆｔｈｅｕｐｐｅｒｃｒｕｓｔｉｎＪｉｚｈｏｎｇ　ｄｅｐｒｅｓｓｉｏｎＹＡＮ－ＸＩＡＮＧＹＵ（俞言祥）ａｎｄＺＨＯＮＧ－ＨＵＡＩＸＵ（...     

Distribution of CO_2 in Soil Air Affected by Vegetation in the Shilin National Park

This paper studies the CO2 distribution of soil atmosphere in the Shilin National Park. The measurement sites were chosen according to different topographic features and different vegetations. Seven measurement sites on 3 cross sections were chosen to pass through 3 karstic depressions or on the slopes of depressions. All measurement results show soils with pH values lower than 7.0 (from 5.4 to 6.6). There are 2 cases for the pH values of soil in different topographic features: the pH values of 2 profiles on the ridges or upper slopes of depressions are lower than those in the depressions; and the pH values of 2 soil profiles on the slopes of depressions are higher than those in the depressions. Most samples show relatively low humidity and CO2 contents on the ridges or slopes of depressions compared with soil profiles in the depressions. High CO2 contents occur at depths from -40 to -80 cm and high and dense grassland shows high CO2 contents in the soil atmosphere. Grass roots may grow and are distribu