当前地勘单位的评价指标多采用实物性成果表述,难以准确地衡量地勘单位在当地经济社会发展中的作用。文章根据《全国地质勘查行业情况通报(2022年度)》和《中国统计年鉴(2023)》披露的数据,设置地勘单位考核体系的指标,采用G D P收入法...当前地勘单位的评价指标多采用实物性成果表述,难以准确地衡量地勘单位在当地经济社会发展中的作用。文章根据《全国地质勘查行业情况通报(2022年度)》和《中国统计年鉴(2023)》披露的数据,设置地勘单位考核体系的指标,采用G D P收入法计算我国地勘单位产业增加值,从贡献能力、发展潜力、拉动能力方面对测算结果进行分析,提出地勘成果GDP化、核算政府资产化、表达服务科普化的建议。展开更多
Using prospecting line profile map in combination with drilling and other information for 3D reconstruction of geological model is an important method of 3D geological modeling.?This paper?discusses the theory and imp...Using prospecting line profile map in combination with drilling and other information for 3D reconstruction of geological model is an important method of 3D geological modeling.?This paper?discusses the theory and implementation method of 2D prospecting line map into 3D prospecting line map and then into 3D model. The authors propose that it needs twice upgrading dimension to reconstruction 3D geology model from prospecting line profile map. The first upgrading dimension is to convert profile from 2D into 3D profile,?i.e.?the 2D points in the 2D profile map upgrading dimensional transformation to 3D points in a 3D profile. The second upgrading dimension is that transform 0D point 1D curve and 2D polygon feature into 1D curve, 2D surface and 3D solid feature. The paper reexamines contents and forms in prospecting line map from the two different viewpoints of geology and geographic information science. The process of 3D geology modeling from 2D prospecting map is summarized as follows. Firstly, profile is divided into several sections by beginning, end and drill point of the prospecting line. Next, a 3D folded upright profile frame is built by 2D folded prospecting line on the plan map. Then, 2D points of features on 2D profile are converted into 3D points on 3D profile section by section. And then, adding switch control points for the long line crossover two segments. Lastly, 1D curve features are upgraded to 2D surface.展开更多
文摘当前地勘单位的评价指标多采用实物性成果表述,难以准确地衡量地勘单位在当地经济社会发展中的作用。文章根据《全国地质勘查行业情况通报(2022年度)》和《中国统计年鉴(2023)》披露的数据,设置地勘单位考核体系的指标,采用G D P收入法计算我国地勘单位产业增加值,从贡献能力、发展潜力、拉动能力方面对测算结果进行分析,提出地勘成果GDP化、核算政府资产化、表达服务科普化的建议。
文摘Using prospecting line profile map in combination with drilling and other information for 3D reconstruction of geological model is an important method of 3D geological modeling.?This paper?discusses the theory and implementation method of 2D prospecting line map into 3D prospecting line map and then into 3D model. The authors propose that it needs twice upgrading dimension to reconstruction 3D geology model from prospecting line profile map. The first upgrading dimension is to convert profile from 2D into 3D profile,?i.e.?the 2D points in the 2D profile map upgrading dimensional transformation to 3D points in a 3D profile. The second upgrading dimension is that transform 0D point 1D curve and 2D polygon feature into 1D curve, 2D surface and 3D solid feature. The paper reexamines contents and forms in prospecting line map from the two different viewpoints of geology and geographic information science. The process of 3D geology modeling from 2D prospecting map is summarized as follows. Firstly, profile is divided into several sections by beginning, end and drill point of the prospecting line. Next, a 3D folded upright profile frame is built by 2D folded prospecting line on the plan map. Then, 2D points of features on 2D profile are converted into 3D points on 3D profile section by section. And then, adding switch control points for the long line crossover two segments. Lastly, 1D curve features are upgraded to 2D surface.