Geological Map of Spain. Scale 1:50.000 - Sheet 679 - ALDEA DE TRUJILLO

The sheet 679 (ALDEA DE TRUJILLO) of the National Geological Map (MAGNA), was made in 1987 and published in 1996 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1987年编制、1996年发布了国家地质图（National Geological Map, MAGNA）的第679幅图幅（阿尔德亚-德特鲁希略，ALDEA DE TRUJILLO），该图幅的分发比例尺为1:50000。该地质图展示了地表出露的物质（岩石与沉积物）的属性、空间分布特征，以及所绘不同制图单元之间的几何关系。 地质填图单元（geological mapping unit）是指具有共同年代范围的一种或多种岩性（lithologies）的集合体，以对应比例尺或既定分辨率在图上进行表达。每个填图单元以及各类地质构造，均通过专属的图式图例在图上进行表示。将这些单元绘于地形底图（topographic base map）之上，可提供一定的三维信息，该信息可通过其他地质数据、地质剖面、地层剖面（stratigraphic profiles）以及勘探孔等资料进行补充完善。本图的图例为象形图示，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、几何关联以及侧向相变化等；同时还涵盖了区域地质格架内该图幅的构造、水文地质（hydrogeological）与地质位置信息。 自1991年起，MAGNA国家地质图系列与同比例尺的地貌图（geomorphological map）一体化编制，不可分割。该图整合了地表地质的全部内容，并提供了关于地表形态的结构化精准信息。其编制以地貌成因学（morphogenesis）与地貌年代学（morphocronology）为基础，通过借鉴地质图的表格/图例格式，引入对应的年代地层柱（chronostratigraphic column）来实现内容组织。侵蚀与沉积成因的各类地表形态，均通过专属符号、色彩样式，以及可提供相关信息的地表沉积物或岩性地层要素进行表达。 MAGNA图系列的每一幅图幅均配有公开出版、经过编辑且为数字格式的说明报告。 该数字信息以ESRI的Coverage与Shape格式（Shape format）进行存储，配套有一份指南，用于说明该数字信息的物理结构与编码规则。