多源地质数据综合三维建模及地质学分析——以青海木里三露天勘探区为例

发布时间：2019-04-26 03:41

【摘要】：常规的二维地质图件难以直观地表达煤炭资源的三维空间展布。基于青海木里三露天勘探区的钻孔数据、二维平面地形地质图、煤层底板等高线和地质勘探剖面图,对该地区地形、煤层底板和断层的三维空间形态及温度场进行了重构。三维重建结果清晰明确地展示了三露天勘探区煤层的形态特征、各个沉积旋回的聚煤范围和强度、构造轮廓特征以及地下地温特征等。结果表明,基于多源地质数据的三维可视化技术可直观形象地反映煤层等地质体的形态和属性特征,可有效地分析复杂断层在地质历史中产生的先后顺序及古构造应力场特征。使用三维建模技术重构地质体对沉积构造及地质体属性特征分析是一种行之有效的手段。
[Abstract]:It is difficult to express the three-dimensional spatial distribution of coal resources intuitively by conventional two-dimensional geological maps. Based on the borehole data, two-dimensional topography geological map, contour line of coal seam floor and geological exploration section map, the 3D spatial morphology and temperature field of the terrain, coal seam floor and fault in Muli area of Qinghai Province were reconstructed. The results of three-dimensional reconstruction clearly show the morphological characteristics of coal seams in the three open-pit exploration areas, the range and intensity of coal accumulation in each sedimentary cycle, the characteristics of structural outlines and the characteristics of underground ground temperature, etc. The results show that the 3D visualization technology based on multi-source geological data can directly and vividly reflect the morphological and attribute characteristics of geological bodies such as coal seams, and can effectively analyze the order of occurrence of complex faults in geological history and the characteristics of paleotectonic stress fields. It is an effective method to reconstruct geological body by using 3D modeling technique to analyze sedimentary structure and geological body attribute characteristics.
【作者单位】：中国矿业大学(北京)地球科学与测绘工程学院;中国测绘科学研究院测绘科学重点实验室;辽宁工程技术大学;青海煤炭地质局;深圳大学海岸带地理环境监测重点实验室;
【基金】：国家自然科学基金项目(41272367,41572141)~~
【分类号】：P628

【相似文献】