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  geomorphic feature
Lake Wales Ridge is the principal geomorphic feature of the region, with younger ridges, including Trail Ridge, occurring to the north and east.
      
Unit names are chosen to identify each unit by its primary characteristics or to show association with a major geomorphic feature.
      
The rift region shows a geomorphic feature of fault depression on the surface and deep structure exhibits uplifted in upper mantle.
      
For the geomorphic feature category, various types of water bodies were included from lakes and depressional wetlands to arroyos and desert washes.
      
Each category represents a geomorphic feature, and revegetation strategies vary by geomorphic feature.
      
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On the basis of remote-sensing information and geological environments for the formation of in-situ leachable sandstone-type uranium deposits such as geomorphic features, distribution of drainage system, and paleo-alluvial (diluvial) fans and time-space distribution regularities of orehosting rocks and sandstone theies in Songliao and Liaohe faulted-depressed basins, image features, tectonic patterns and paleo-geographic environment of the prospective areas are discussed for both basins in this...

On the basis of remote-sensing information and geological environments for the formation of in-situ leachable sandstone-type uranium deposits such as geomorphic features, distribution of drainage system, and paleo-alluvial (diluvial) fans and time-space distribution regularities of orehosting rocks and sandstone theies in Songliao and Liaohe faulted-depressed basins, image features, tectonic patterns and paleo-geographic environment of the prospective areas are discussed for both basins in this paper, and based on a great number of petroleum-geological data and comparison analysis, a remote sensing-geological prospecting model for in-situ leachable sandstonetype uranium deposits in the region is established,providing indications for selection of prospective area.

本文从松辽、辽河两断坳盆地的地形地貌、水系及古冲(洪)积扇分布等遥感地质信息特征出发,根据可地浸砂岩型铀矿床成矿地质环境、矿床围岩──砂体的时空分布规律,对两盆地找矿远景地段的遥感影像特征、构造样式及古地理环境进行分析,并结合丰富的石油地质科研资料,建立了区内可地浸砂岩型铀矿的遥感地质找矿模型,进而以此判断找矿选区的最佳部位,指出找矿方向。

Coalmine district 3D seismic prospecting technique already extensively popularized in plain, mountainous terrain, hillock, gobi and desert areas. Yet in loess tableland in western China, because of its special geomorphic features, complex geological conditions and relatively low degree of exploration, those areas are still regarded as 3D seismic prospecting ″fenced-off area″. Aimed at the situation, based on multiple experimentation, we adopted corresponding technical measures of to improve shooting conditions,...

Coalmine district 3D seismic prospecting technique already extensively popularized in plain, mountainous terrain, hillock, gobi and desert areas. Yet in loess tableland in western China, because of its special geomorphic features, complex geological conditions and relatively low degree of exploration, those areas are still regarded as 3D seismic prospecting ″fenced-off area″. Aimed at the situation, based on multiple experimentation, we adopted corresponding technical measures of to improve shooting conditions, multidomain iterative static correction and so on, have overcame main nodi to carry on 3D seismic prospecting in loess tablelands. To incorporate actual engineering examples, put forward some considerations and suggestions to develop 3D seismic prospecting in loess tablelands.

在平原、山区、丘陵、戈壁和沙漠地区,煤矿采区三维地震勘探技术已得到了大范围的推广应用,但在西部黄土塬区,由于其特有的地貌特征及复杂地质条件,勘探程度不高,三维地震勘探在该类地区仍被视为“地震禁区”。对此在多次试验的基础上,采取改善激发条件、多域迭代静校正等相应技术措施,克服了黄土塬区开展三维地震勘探的主要难点,并结合具体工程实例,提出了今后在黄土塬区开展三维地震勘探的一些设想和建议。

The tailings dam in Tonglushan Mine was dammed in quadrilateral on flatland. On March 26, 2004, the sinking of tailings dam on the north happend. Through analysing the geomorphic feature of tailings reservoir and calculating the limitative stable critical data, it was proved that the sinking of tailings dam was caused by disorderly mining and the destruction of ground water. In the sametime, the treatment scheme and control means were put forward.

铜绿山矿尾砂库是平地四面筑堤而成,2004年3月26日,库北部一段坝体出现沉陷现象。通过对库区地质地貌分析及计算极限稳定临界值,证明坝体沉陷系地下无序乱采形成空区或破坏地下水系导致,提出了治理方案及其控制方法。

 
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