Geological Map of Spain. Scale 1:50.000 - Sheet 12 - BUSTO

The sheet 12 (BUSTO) of the National Geological Map (MAGNA), was made in 1976 and published in 2006 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（Geological Survey of Spain）于1976年编制、2006年出版的《国家地质图（MAGNA）》第12幅（BUSTO幅），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）的性质、空间分布，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，在地图上以对应比例尺或限定分辨率进行表示。每个填图单元及各类地质构造，均通过专属符号在地图上进行表达。将此类单元绘制于地形底图之上，可获取一定的三维空间信息，该信息可辅以其他地质数据、地质剖面图、地层剖面、勘探钻孔等进行完善。地图图例为象形图标，用以展示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、侧向相变化等），同时还涵盖了区域框架内该图幅的构造、水文地质与地质位置信息。 自1991年起，《MAGNA》国家地质图系列与同比例尺地貌图整合为不可分割的整体。该图件囊括了地表全部地质信息，并提供了关于地表形态的结构化精准数据。其编制基于地貌成因与地貌年代学，通过参考地质图设计的表格/图例中收录的对应年代地层柱，将相关信息纳入图件。地表侵蚀与沉积形态通过专属符号、色彩模式，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个性化表达。 《MAGNA》系列的每一幅图幅均配有公开出版、经过编辑且以数字格式呈现的说明报告。 数字信息以Coverage和Shape格式（ESRI出品）存储。另有一份指南对数字信息的物理结构及其编码规则进行详细说明。