Geological Map of Spain. Scale 1:50.000 - Sheet 488 - ABLANQUE

The sheet 488 (ABLANQUE) of the National Geological Map (MAGNA), was made in 1981 and published in 1993 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1981年编制、1993年发布了国家地质图（MAGNA）的第488幅（ABLANQUE幅），该图采用1:50000比例尺发行。本地质图展示了地表出露的物质（岩石与沉积物）的属性、空间分布特征，以及所绘不同制图单元间的几何关系。 地质填图单元是指具有共同时代范围的一种或多种岩性的集合体，以对应比例尺或既定分辨率在图上予以表示。每个填图单元及不同地质构造均通过专属的符号系统在图上呈现。将这些单元绘于地形底图之上，可提供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、地层剖面及钻孔等资料予以补充完善。本图的图例为图示符号，用于展示不同填图单元的空间关系，包括年代序列、叠置关系、几何关联及侧向相变等。图例同时涵盖了该幅图在区域地质格架中的构造、水文地质及地质位置信息。 自1991年起，MAGNA国家地质图系列与同比例尺地貌图不可分割地联合编制。该系列图件涵盖了地表所有地质信息，并提供了结构化且精准的地表形态数据。其编制基于地貌成因与地貌年代学，采用借鉴地质图的表格/图例形式，附以对应的年代地层柱。图中的侵蚀与沉积地貌形态，通过专属符号、色彩样式以及地表沉积或岩性地层要素予以单独标识，以此传递相关信息。 MAGNA系列的每一幅图件均配有经过编辑发布的数字化说明报告。 该数字化信息以ESRI的Coverage与Shape格式存储。另有一份指南对数字化信息的物理结构及编码规范进行说明。