| 徐 阳.CASS 8.0在绘制地质工作部署图坐标转换中应用[J].地质与勘探,2021,57(5):1127-1135 |
| CASS 8.0在绘制地质工作部署图坐标转换中应用 |
| Application of CASS 8.0 to coordinate transformation in preparation of geological work deployment maps |
| 投稿时间：2020-08-19 修订日期：2021-06-18 |
| DOI：10.12134/j.dzykt.2021.05.017 |
| 中文关键词: 磁法勘探 激电中梯 测点坐标 工作部署图 CASS 8.0 |
| 英文关键词: magnetic exploration, IP middle ladder, survey point coordinates, work deployment map, CASS 8.0 |
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| 中文摘要: |
| 针对多金属矿勘探中测点坐标的批量生成过程步骤繁琐的问题，文中提出了一种利用CASS8.0直接生成1:1万高精度磁法勘探测点及1:1万激电中梯探测测点坐标的思路。通过利用现有地形地质图以及专业绘图软件CASS8.0在制图及坐标转换方面的优越性，直接生成可以应用于手持GPS测量仪的数据格式文件和绘制出可以用于野外找点的地形地质图，达到测绘坐标点在地图上快速导入导出的效果。在内蒙古自治区额济纳旗黑鹰山南区铅多金属矿普查项目的工作中，针对工区面积大，地形复杂，在工作部署中，需要布置探测点数量庞大，采用原始方法计算并人工将每个测点坐标输入手持GPS定位仪中的工作量大且极易出错，探测点点位不能根据实际地形合理规避危险区域或者障碍物（悬崖、峭壁等）等问题，通过利用黑鹰山南区铅多金属矿普查区地形地质图及CASS8.0绘图方面的优越性，批量对工作部署图中测点进行定位编号并调整，从CASS8.0导出坐标数据点并导入天宝R4 GPS手持定位仪中的方法，避免了人工输入数据出错的问题，合理规划了探测路线，提高工作效率，保障了工作人员的生命安全，该应用表明，此方法在工作部署图绘制中更加直观、方便，解决大面积比例尺工作部署图坐标导出导入问题，并且效率极高，在工作中取得了较好的效果。 |
| 英文摘要: |
| In polymetallic mineral exploration, the steps of the batch generation process of measuring point coordinates are usually cumbersome. To solve this problem, this paper proposes a method to directly generate 1:10,000 high-precision magnetic survey points and 1:10,000 high-precision IP intermediate gradient work points by using CASS8.0. Drawing upon existing topographic and geological maps and the superiority of professional mapping software CASS8.0 in cartography and coordinate conversion, data format files are directly generated that can be applied to handheld GPS surveying instruments and draw topographic geological maps that make points are easily found in the field, thus quickly importing and exporting the survey and mapping coordinate points on the maps. In the work of the lead polymetallic ore survey project in the southern district of Heiyingshan, Ejina Banner, Inner Mongolia Autonomous Region, the work area is large and the terrain is complex. In the work deployment, a large number of geophysical exploration points need to be arranged. The original method to calculate and manually calculate coordinates of each point for input handheld GPS locator has a large workload and is extremely error-prone. The exploration points cannot reasonably avoid problems such as dangerous areas or obstacles (cliffs and faults etc.) in the actual terrain. In the lead polymetallic mines in the southern area of Heiying Mountains, in terms of superiority of the topographic and geological maps of the census area and CASS8.0 drawing, the coordinates of prospecting points are located, numbered and adjusted in a batch manner, and coordinate data are derived from the CASS8.0 and imported into the Trimble R4 GPS handheld locator. In this way, the problem of manual data input errors is avoided, exploration routes are planned reasonably, work efficiency is enhanced, and the safety of the staff is ensured. The application shows that this method is more intuitive and convenient in preparation of deployment maps. The problem of exporting and importing coordinates of large-scale scale work deployment maps is solved, the work efficiency very high, and good results are achieved. |
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