川藏交通廊道断层分布数据（2020）

数据覆盖区域为川藏交通廊道，为矢量线数据。数据定义了其活动时期，并对其进行了命名。描述了断层走向、性质、活动时期、出露情况。但内容有所缺失，次级断裂带没有命名。此数据集川藏交通廊道范围内共有590条线状要素，但有部分线状要素为同一断裂带的多部分要素。活动断裂带往往是不同板块、不同地块的结合带，是地壳的相对薄弱带，易诱发极为严重的地震灾害，也是崩塌、滑坡、泥石流等地质灾害的集中发育带。对断裂带位置及性质的判断对地质灾害的风险易发性评价具有重要意义，是研究地质灾害的关键因子。This dataset covers the Sichuan-Tibet Transportation Corridor and consists of vector line features. The active periods of the corresponding fault zones are defined, and some of the fault zones have been named. It documents the strike, nature, active period, and outcrop condition of these fault zones. However, some information is missing, and secondary fault zones remain unnamed. In total, there are 590 linear features within the corridor, though some features represent multiple segments of the same fault zone. Active fault zones typically act as junctions between different tectonic plates and blocks, constituting relatively weak crustal zones. They are prone to triggering extremely severe seismic disasters, and also serve as concentrated development areas for geological disasters including collapses, landslides, and debris flows. Determining the location and nature of fault zones holds great significance for the risk susceptibility assessment of geological disasters, and is a critical factor in geological disaster research.

搜集汇总

背景与挑战

背景概述

该数据集是2020年川藏交通廊道（含川藏铁路和公路）的断层分布矢量线数据，包含590条线状要素，描述了断层走向、性质和活动时期等信息，但存在内容缺失和次级断裂带未命名的局限。数据集聚焦于活动断裂带作为地质灾害的关键因子，对地质灾害风险易发性评价具有重要价值，可通过国家青藏高原科学数据中心开放获取。