Map of the raw materials close to the surface in the Federal Republic of Germany 1:200,000 (KOR200) - CC 3902 Lingen (Ems)

In order to exploit mineral raw materials close to the Earth's surface, experts are working on trans-regional and national planning documents. To do this, they need maps which clearly depict the raw materials close to the surface in Germany. KOR200 displays Germany's national raw material potential in a comparable way, thus forming a basis for future exploration and investigations as well as making a contribution towards the assurance of the supply of raw materials. The map follows the sheet line system of the topographical survey map 1:200.000 (TÜK 200) and consists of 55 sheets, each with an explanatory booklet. There is a review of the current situation, a description, a depiction and documentation of the occurrence and deposits of mineral raw materials which are usually extracted in mines either on or close to the Earth's surface. Such deposits include, in particular, industrial minerals, rocks and soils, peat, lignite, oil shale and brines. Besides the delimited deposits and areas of raw materials coloured according to the raw material in question, the maps also depict "mining areas" (=operations) or "focal points of several mining areas", each marked with a symbol. The map entries are - just as with the topographical basis - recorded in digitalised form in a databank, from which they can be retrieved via a computer using various search criteria. The entries in the map are supplemented by between 40 to 80 pages of textual explanations, which are currently available only in the printed edition of the map. The text is divided into: - introduction - description of the deposits and occurrence of useful rocks - supply and demand assessment of the deposits and occurrence of raw materials close to the Earth's surface in the area covered by the sheet - possible ways of using the useful rocks present in the sheet area - list of publications - appendix (with, amongst other things, a general legend and survey of sheets)为开采近地表矿产原料，专家正编制跨区域及国家级规划文件。为此，亟需绘制能够清晰标注德国境内近地表矿产原料分布的地图。KOR200以可对比的统一标准呈现了德国国家级原料潜力，可为未来勘探与调查工作提供依据，同时为保障原料供应提供支撑。该地图遵循1:200000比例尺地形测量图（TÜK 200）的图幅体系，共包含55幅分幅图，每幅图均配有专属说明手册。其内容涵盖现状评述、对通常在地表或近地表矿山开采的矿产原料的产出与矿床进行描述、可视化呈现与归档。此类矿床具体包括工业矿物、岩石与土壤、泥炭、褐煤、油页岩及卤水。除了按原料类别着色的划定矿床与原料区域外，该地图还标注了"mining areas"（即作业区块）或"focal points of several mining areas"（多采矿区集聚点），并均配有专属标识符号。与地形底图一致，地图条目均以数字化形式存储于数据库中，可通过计算机依托多种检索条件调取使用。地图条目配套有40至80页的文字说明，目前仅随地图印刷版同步发行。该说明文本分为以下章节： - 引言 - 有用岩石的矿床与产出特征描述 - 对应图幅覆盖区域内近地表原料的矿床与产出供需评估 - 图幅区域内产出的有用岩石的潜在用途 - 参考文献列表 - 附录（其中包含通用图例与图幅概览等内容）