Geological Map of Spain. Scale 1:50.000 - Sheet 490 - ODÓN

The sheet 490 (ODÓN) of the National Geological Map (MAGNA), was made in 1983 and published in 1995 by the Geological Survey of Spain. It is distributed at scale 50000. The geological map shows the nature of materials (rocks and sediments) that appear on the surface, their spatial distribution and geometric relationships between the different cartographic units represented. A geological mapping unit is the grouping of one or more lithologies with common age range, which is represented on the map at a scale or defined resolution. Each mapping unit, and the different geological structures, is represented on the map with a symbolism itself. The representation of these units on the topographic base map provides some three-dimensional information that is completed with other geological data and geological sections, stratigraphic profiles, polls, etc. The map legend is a pictogram representing the spatial relationship of the different mapping units (chronology, overlapping, geometric relationship, lateral facies changes, etc.). It also includes structural, hydrogeological and geological location of the sheet within the regional schemes. Since 1991, the Geological Map Series MAGNA is made inseparably with the geomorphological map on the same scale. This map incorporates everything on the surface geology and provides a structured and accurate information of the land forms. It is organized on the basis of morphogenesis and morphocronology incorporated the map using the corresponding chronostratigraphic column included in a table / legend inspired by the geological map. The forms, erosional and depositional, are represented on the map by individualized by symbols and patterns of color and surface deposits or lithological formations elements that provide information. For each sheet of the series MAGNA there is an explanatory report published, edited and in digital format. The digital information is stored in coverage and Shape format (ESRI). There is a guide that describes the physical structure of the digital information and its codification.西班牙国家地质图（National Geological Map，简称MAGNA）第490幅（ODÓN幅）由西班牙地质调查局于1983年编制，1995年正式发布，比例尺为1:50000。该地质图展示了地表出露的物质（岩石与沉积物）类型、空间分布特征，以及各制图单元间的几何关系。 地质填图单元是指具有共同年代范围的一种或多种岩性的集合体，在地图上以对应比例尺或限定分辨率进行表示。每一个填图单元以及各类地质构造，均通过专属符号在地图上进行标注。将这些填绘单元叠加于地形底图之上，可获取一定的三维地表信息，此类信息可通过其他地质数据、地质剖面、地层柱状图、钻孔资料等进行补充完善。地图图例以象形图表征各填图单元的空间关系，包括年代序列、叠置关系、几何关联、侧向岩相变化等，同时还涵盖了区域地质框架内的构造、水文地质信息以及该幅图的地理位置。 自1991年起，MAGNA系列地质图与同比例尺地貌图一体化编制。该套图件完整覆盖地表地质信息，并能系统精准地提供地表形态的相关数据。其编制基于地貌成因与地貌年代学，采用依托地质图设计的表格/图例中的年代地层柱作为参照。地表侵蚀与沉积形态通过专属符号、色彩样式以及能提供相关信息的地表沉积物或岩性地层要素进行个性化表达。 MAGNA系列的每一幅图件均配有正式出版、编辑并数字化的说明报告。 该数字化数据以Coverage和Shape格式（ESRI）存储，另有一份指南对数字化数据的物理结构与编码规则进行详细说明。