Digital Geological Map Data of Great Britain - 10k (DiGMapGB-10) Mass Movement version 2

Data identifying landscape areas (shown as polygons) attributed with type of mass movement e.g. landslip. The scale of the data is 1:10 000 scale. Onshore coverage is partial with approximately 30% of England, Scotland and Wales available in the version 2 data release. BGS intend to continue developing coverage at this scale; current focus is to include all large priority urban areas, along with road and rail transport corridors. Mass movement describes areas where deposits have moved down slope under gravity to form landslips. These landslips can affect bedrock, superficial or artificial ground. Mass movement deposits are described in the BGS Rock Classification Scheme Volume 4. However the data also includes foundered strata, where ground has collapsed due to subsidence (this is not described in the Rock Classification Scheme). Caution should be exercised with this data; historically BGS has not always recorded mass movement events and due to the dynamic nature of occurrence significant changes may have occurred since the data was released. The data are available in vector format (containing the geometry of each feature linked to a database record describing their attributes) as ESRI shapefiles and are available under BGS data licence.

识别景观区域（以多边形形式呈现）并标注山体运动类型（如滑坡）的数据集。数据比例尺为1:10000。第二版数据发布中，英格兰、苏格兰和威尔士的陆上覆盖范围为部分区域，约占30%。BGS计划继续扩展该比例尺下的覆盖范围；当前重点是纳入所有大型重点城区，以及公路和铁路交通走廊。

山体运动（mass movement）指沉积物在重力作用下沿斜坡下滑形成滑坡的区域。这些滑坡可影响基岩、表层土或人工地面。

山体运动沉积物在《BGS岩石分类方案第4卷》中有述。但本数据还包含沉陷地层——即因沉降导致地面塌陷的地层（该类未纳入岩石分类方案）。

使用本数据时需谨慎：历史上BGS并非始终记录所有山体运动事件，且由于山体运动的动态发生特性，自数据发布以来可能已出现显著变化。

本数据以矢量格式（包含各要素的几何信息，且与描述其属性的数据库记录相关联）提供，格式为ESRI shapefiles，并受BGS数据许可协议约束。