陆盆层序地层研究的思路   总被引：8，自引：1，他引：7  

岳文浙  丁保良 《地质论评》2000,46(4):347-354

根据陆相地层层序发育的特点,冲积扇、河流、三角洲或湖泊沉积环境,均受地层基准面控制,地层基准面穿越旋回控制着陆相环境重大层序分布。根据不同时间间隔的基准面穿越旋回序次,可将陆层序划分为盆地充填层序、构造层序、层序、亚层序以及小层序５个级别。每个层序（三级）根据蕨面的波动可划分为基准面上升沉积体系域和基准面下降沉积体系域,然后可进一步根据亚层序组的叠置特性进行细分。  相似文献   

Integrated Reservoir Prediction and Oil-Gas Evaluation in the Maoshan Area     

HAO Peidong  CUI XiuqinNo. Geophysical Prospecting Party  East China Petroleum Bureau  China National Star Petroleum Corporation  Building  Tiantan Xincun  Guanghua Rd.  Nanjing 《《地质学报》英文版》2000,74(3):697-700

The Maoshan area is an area with well-developed igneous rocks and complex structures. The thickness of the reservoirs is generally small. The study of the reservoirs is based on seismic data, logging data and geological data. Using techniques and software such as Voxelgeo, BCI, RM, DFM and AP, the authors have made a comprehensive analysis of the lateral variation of reservoir parameters in the Upper Shazu bed of the third member of the Palaeogene Funing Formation, and compiled the thickness map of the Shazu bed. Also, with the data from ANN, BCI and the abstracting method for seismic characteristic parameters in combination with the structural factors, the authors have tried the multi-parameter and multi-method prediction of petroleum, delineated the potential oil and gas areas and proposed two well sites. The prediction of oil and gas for Well JB2 turns out to be quite successful.  相似文献   

Ore-bearing Formations and Mineral Resource Prospects of the Peripheral Areas of the Tarim Block     

HE Jurui  RUI Xinjian  GUO Kunyi  WU Quanhuai  LIU Hongying  Nanjing Institute of Geology  Mineral Resources  Geological Survey of Chin  East Zhongshan Rd.  Nanjing  JiangsuWANG FutongBureau of Geology  Mineral Resources Exploration  Development of Xinjiang  Urumqi  Xinjiangand SUN ChuanminChengdu Institute of Technology  Chengdu  Sichuan 《《地质学报》英文版》2000,74(3):473-477

The tectonic development of the Tarim block has experienced four stages, i. e. Earth's core accretion and block formation in the Precambrian, margin splitting, opening-closing and piecing up in the Early Palaeozoic, rift formation and plate unification in the Late Palaeozoic, and basin-mountain coupling and landform shaping in the Meso-Cenozoic, forming six ore-bearing formations and ore deposits of various genetic types in the Tianshan Mountains, Kunlun Mountains and Altun Mountains. In the peripheral areas of Tarim there are four giant intercontinental metallogenic belts passing through, the Central Tianshan and southwestern Tianshan belts in the former USSR and the Qinling-Qilian-Kunlun and Palaeo-Tethys belts in China. According to the macro-analysis on the nearly one thousand known deposits (occurrences) and geophysical-geochemical anomalies, and the information from reconnaissance in some areas, the region has very good prospects for mineral resources. Some of the metallogenic belts may well becom  相似文献   

辽宁四道沟热液金矿床中石英的稀土元素的特征及意义   总被引：30，自引：10，他引：20  

范建国  苏文超 《岩石学报》2000,16(4):587-590

本文用ＩＣＰ－ＭＳ测定了辽宁四道沟金矿矿脉中石英及其中流体包裹体中的稀土元素含量,发现石英的稀土元素配分模式类似于其中流体包裹体的稀土元素配分模式,推断石英中的稀土元素主要赋存于注流体包裹体中,流体包裹体中的稀土元素了石英的稀土元素配分模式,原生包裹中的流体是和石英同源的,其稀土元素指示的是石英形成过程中流体的信息。而次生包裹体中的流体是石英形成后的流体活动产物,其稀土元素指示的是后期流体活动的信  相似文献   

Experimental Study of Wave Pressure on a Breakwater Pier     

PAN Shaohua XIAQiyi LIN Shiqing XU Lunhuan Professor  Dept. of Coastal Engineering  College of Harbour  Waterway  Coastal Engineering  Hohai University  Nanjing  P. R. China. Senior Engineer  Dept. of Coastal Engineering  College of Harbour  Waterway  Coastal Engineering  Hohai University  Nanjing  P. R. China. Senior Engineer  Fujian Province Ports  Shipping Administration Bureau  Fuzhou  P. R. China. 《中国海洋工程》1999,(2)

Test studies on the wave pressure on a breakwater pier show that the influence of transmissivewave pressure on the outside wall of the breakwater pier is considerable,when the width of the pier is notvery large.The variations of transmissive wave pressure on the breakwater pier with different widths arecompared and the relationship is obtained between relative transmitting distance b/L and wave pressurereduction factor K,which may be used in the design of similar breakwater piers.  相似文献   

Wave-Current Propagation over a Frictional Topography   总被引：1，自引：0，他引：1  

ZUO Qihua  DING Bingcan Prof. Senior Engineer  River  Harbour Department  Nanjing Hydraulic Research Institute 《中国海洋工程》1998,(4)

—In this paper the parabolic approximation model based on mild-slope equation is used tostudy wave propagation over a slowly varying and frictional topography under wave-current interaction.A governing equation considering the friction effects is derived by the authors for the first time.A simpli-fied form for the rate of wave energy dissipation is presented on the basis of the wave-current action conser-vation equation and the bottom friction model given by Yoo and O＇connor(1987).Examples reveal thatthe present computational method can be used for the calculation of wave elements for actual engineeringprojects with large water areas.  相似文献   

A Numerical Model for Typhoon Surges     

PAN Junning  WANG Hongchuan  YAO Guoquan Graduate Student  River  Harbour Department  Nanjing Hydraulic Research Institute  Nanjing  P. R. China.Engineer  River  Harbour Department  Nanjing Hydraulic Research Institute  Nanjing  P. R. China. Professor  River  Harbour Department  Nanjing Hydarulic Research Institute  Nanjing  P. R. China. 《中国海洋工程》1998,(2)

-In this paper a simple and efficient implicit finite-difference scheme is used for depth-averagedtwo-dimensional storm surge model.This finite-difference scheme is simpler and more efficient than the wi-dely-used ADI scheme.Accuracy analysis and stability analysis indicate that the scheme has two-order ac-curacy and is unconditionally stable when the grid size is constant.The present analysis results show thatthe scheme is of higher numerical accuracy than that introduced by Maa(1990).After tested by ideal mod-els,a calculation example of a real typhoon surge is carried out,the results of the numerical simulation co-incide well with the observed data and the accuracy is sufficient for engineering applications.  相似文献   

江苏地温水温场特征及地热异常分布规律与控制条件探讨   总被引：1，自引：0，他引：1  

赵剑畏  许家法 《江苏地质》1997,21(1):27-35

江苏地温分布的一般规律是：坳陷区地温高于隆起区，坳陷区中次级正向构造高于负向构造，隆起区中则相反，此外，地温随深度加大而增高，全省的第Ⅱ、Ⅲ、Ⅳ含水层中，共划盼出热水异常３５个，按平面分布的重叠性归并为２１个地热异常，其中大部分可归纳为个异常带，扬子准地台区是本省地热异常的主要分布区。  相似文献