Geological Map of Spain. Scale 1:50.000 - Sheet 432 - RIAZA

The sheet 432 (RIAZA) of the National Geological Map (MAGNA), was made in 2005 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.西班牙地质调查局于2005年编制了国家地质图（National Geological Map，简称MAGNA）的第432幅（RIAZA）图幅，该图幅比例尺为1:50000。本地质图展示了地表出露物质（岩石与沉积物）的性质、空间分布特征，以及各表征制图单元间的几何关联。 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，将以对应比例尺或既定分辨率在地图上进行表征。每一个填图单元以及各类地质构造，均通过专属符号系统在图上进行表达。将此类填绘单元叠加于地形底图之上，可获取一定的三维空间信息，此类信息可通过其他地质数据、地质剖面、地层柱状图、勘探采样孔等进行补充完善。本图的图例为象形符号集，用以表征不同填图单元的空间关系，包括年代序列、叠置关系、几何关联、侧向相变等。同时还涵盖了该图幅在区域地质框架内的构造、水文地质与地质位置信息。 自1991年起，MAGNA系列地质图与同比例尺地貌图一体化编制，不可分割。该系列图件囊括了地表所有地质相关内容，并可提供关于地表形态的结构化、精准化信息。其编制基于地貌成因与地貌年代学，同时借助参考地质图图例设计的表格/图例中收录的对应年代地层柱，实现内容的整合。侵蚀与沉积成因的各类地貌形态，通过专属符号、色彩样式以及可提供相关信息的地表沉积物或岩性地层单元要素进行单独表征。 针对MAGNA系列的每一幅图幅，均配有公开出版、编辑并以数字格式存储的说明报告。 该数字信息以Coverage格式与Shape格式（ESRI）存储，另有一份指南对该数字信息的物理结构及其编码规则进行详细说明。