封闭盆地

基于对西北地区干旱化趋势的讨论，研究了西北内陆封闭盆地水盐迁移聚集的系统动力学模式，阐明了盆地浅表积盐与水盐失衡的根本原因。

In terms of the arid trend in the Northwest China , this paper deals with the system dynamic pattern of water transfer and salt accumulation in this closed inland basin and elucidates the basic cause for the corresponding imbalance between the supergene salt accumulation and water salt .

亚洲中部大地构造格局及地貌轮廓均以山盆体系为特征，所有封闭性盆地中都发育有尾闾湖。

The outline of geotectonic and geomorphology of the Central Asia is characterized by range and basin complex . All the closed basins develop tail-end-lake ( or lakes ) .

罗布泊地区位于新疆巴音郭楞蒙古自治州境内，处于封闭性盆地&塔里木盆地的东端，东、南、北为高山屏蔽。

Lop Nur region is located in Bayingolin Mongolian Prefecture of Xinjiang and the eastern part of the Tarim Basin which is a closed basin , the east , north and south sides of which are shielded by the mountains in this region .

本文把古生界一中、上元古界海相盆地分为封闭型承压盆地和开启型泄压盆地两大类型。

This paper divides the Paleozoic - Middle-Upper Proterozoic marine basins into the closed bearing basin type and open relief basin type .

中新生代的准噶尔盆地为一封闭型内陆盆地，湖水位升降主要受气候和构造因素的控制。

The Junggar Basin was an enclosed inland basin during Meso-Cenozoic time . The lake-level fluctuations were mostly controlled by the climatic and tectonic factors .

按封闭机理划分塔里木盆地的圈闭类型

Dividing the trap types of Tarim basin according to confining mechanism

山西大同盆地属干冷荒漠景观条件的半封闭型断陷盆地。

The Datong Basin is a semi-closed fault basin developed in an arid dry desert environment .

金和成矿流体的来源：（3）相对封闭的聚矿盆地；

The sources of gold and oreforming fluid ; ( 3 ) relatively closed basin of gold concentration ;

边界断层封闭性差，盆地内部断层封闭性从古至今逐渐变好。

The boundary faults are also poorly closed , and the sealing ability of the internal faults of the basin gradually increased through geologic time .

沉积场所为古陆边缘半封闭&封闭沉积盆地的斜坡地段，为进一步找矿指出了方向。

The sedimentation area is in the declivity sections of closed / semi-closed sedimentary basin at the edge of old land , which shows the direction of ore exploitation .

说明含矿硅岩建造中沉积黄铁矿的硫，主要来自封闭-半封闭盆地海水硫酸盐的细菌分解。

It is clear that the sulfur of sedimentary pyrite in ore-forming silicolite formation is meanly derived from sea-water sulfate by bacterium fractionation in a close or half-close basin .

塔里木盆地为封闭的内陆干旱盆地，属一级地下水系统，根据盆地的沉积环境条件、地表水流域特征，结合地下水补径排条件，进一步划分出二、三级地下水系统。

Tarim Basin , a closed inland droughty basin , belongs to first order groundwater system and can be divided into second and third order groundwater system according to their sedimentary environment and surface water drainage area .