古河道

CSAMT法在内蒙古某古河道砂岩型铀矿勘查中的试验应用

Application test of CSAMT method to the exploration of paleo-channel sandstone type uranium deposit in Inner Mongolia

以PHC管桩加固某电厂古河道地基为依托，进行了PHC管桩受力特性研究。

Based on the old channel ground of a power plant improved by PHC pipe piles , the mechanical characteristics of PHC pipe piles are studied .

古河道由水流切割而侵入下伏的红色粉砂岩中。

Channels are incised by streams into the underlying red siltstones .

南京市古河道及其与城市建设的关系

Old channel and its influence on municipal construction in Nanjing City

3启用古河道分流泄洪；

The old river ways should be used to discharge the flood ;

古河道桩基施工实践

The Practice of Foudation Piling in the Old Channel in Longyan City

杭州城区古河道承压含水层特性研究

Study on the Properties of Confined Aquifer of Old Stream in Hangzhou

空间上，它与侏罗纪直罗组辫状古河道体系有关。

It is spatially related to Jurassic Zhiluo Formation with braided palaeochannel systems .

古河道砂岩型铀矿水文地质找矿研究

Research on hydrogeologic prospecting for paleochannel sandstone-type uranium deposit

古河道砂岩型铀矿的几种勘查方法

Some prospecting methods for paleochannel sandstone-type uranium deposit

上海陆域地区古河道溺谷相沉积层工程地质特征研究

Engineering Geological Feature Study of Paleochannel Drowned-valley Facies Strata in the Shanghai Land Area

海岸地貌以及滨海平原区古河道、古湖沼洼地是影响海水入侵的重要地貌因素；古河道带上，海水以层状入侵和越流入侵为主；

Paleochannels and coastal landforms were the main geomorphic types that affected seawater intrusions .

大安古河道盐碱土类型与开发利用模式研究

Research on the types and exploitation models of saline soil in Da'an Ancient Riverway

古河道沉积体系与赋铀性

Paleochannel depositional system and its uraniferous characteristics

古河道砂层的存在，是影响围坝稳定的主要环境因素。

The sand stratum in old river bed is important factor affecting stability of dam .

吴淞江古河道地基土液化的评价

Evaluation of the liquefaction ancient stream channel of the foundation soil of the wu-song River

晚更新世以来潍河古河道沉积及其对现代咸水入侵的控制

Sedimentary Characteristics of Weihe Palaeochannel Since Late Pleistocene and Their Control to Modern Salt-Water Intrusion

潍河下游地区浅埋古河道沉积与第四系地层划分

Shallowly buried ancient channels and Quaternary strata division in the lower reaches of the Weihe River

青岛近海古河道断面特征与古地理变迁关系研究

Relationship Between River Cross Section Characters and Change of Ancient Geography of Offshore in Qingdao Bay

在垂向上，古河道自下而上分为5段，其粒径呈愈向上愈细的趋势。

The ancient river channel can be divided into 5 parts vertically , in fining upwards tendency .

上海及长江口第四纪沉积层中埋盖的古河道

The buried channels in the Quaternary sediment at the mouth of the Yangtse River and in Shanghai area

辽东湾中北部浅层埋藏古河道沉积特征及对海上工程的影响

Sediment Characteristics of the Shallow Buried Paleo-Channels in the North-central Liaodong Bay and Their Negative Effects on Nautical Engineering

古河道沉积物形成承压含水层，其中蕴藏丰富的淡水资源，可供开发。

The confined aquifers have been formed by sediments of the ancient five channels which containing plenty of fresh-water resources to be exploited .

该研究表明，在富水性较强的古河道发育位置，要合理留设防水煤岩柱，才能保证煤矿安全生产。

Through above research , in the old river channel where water-abundance is good , the pillar must be suitably left for the safe of mining .

滇西发育一系列地堑&向斜小型自流盆地，是寻找古河道砂岩型铀砂的有利地区。

A series of small artesian basins of graben-syncline type are developed in West Yunnan , which are the advantageous areas to prospecting the sandstone U deposit of ancient river bed .

利用雷达遥感的穿透特性，对在北非撒哈拉的埃及南部发现沙层覆盖下的古河道，对阿拉伯半岛风沙覆盖的地质特征等作了广泛的研究。

With this ability of radar , paleo-river covered by drift-sand was found in the south of Egypt , northern Africa , and the geological features beneath the sand in Arab peninsula was also outlined .

本文研究古河道砂岩型铀矿化特征、控制因素和成矿规律，分析盆地铀成矿条件和找矿前景。

In this paper , we have the study of metallogenetic characteristics , controlling factors and metallogenetic rule of sandstone U deposit of ancient river bed and the analysis of metallogenetic conditions and ore prospecting potentiality of U in the basin .

单县组为黄河古决口扇、古河道沉积，岩性主要为细砂、粉砂；

Shanxian formation is old crevasse splay and old channel sedimentary of the Yellow river , and its propery is mainly fine silt and silt ;

内陆架地貌主要有陆架堆积平原、水下阶地、古海岸线、古河道、小丘和坑洼群等；

In the inner shelf , the main geomorphic types have the accumulational plain , shoreface terrace , an - cient costal line , ancient stream channel , mamelon and pit-and-pots .