藏东内动力环境地层岩性图

基于对藏东地区1:25万地质图，1:100万西藏区域地质志的综合分析，搜集三江地区已有地层、岩石和构造研究最新进展，特别是对金沙江缝合带、碧土缝合带和班公湖-怒江缝合带的系统研究，将本区划分成松潘-甘孜复理石带、北羌塘-昌都-思茅板块、南羌塘-保山地块和冈底斯-拉萨地块几个主要的构造单元；在此基础上，将松潘-甘孜地块进一步分成巴颜喀拉地块，甘孜-理塘湖盆体系和中咱地块三个亚单元；北羌塘-昌都-思茅板块细分为：金沙江古特提斯带，昌都地体，兰坪思茅地体，临沧火山岩带及碧土古特提斯带五个单元；南羌塘-保山构造系则被细分为南羌塘地块、保山地块、班公湖-怒江中特提斯带三个构造单元。新的构造单元划分为地震防灾、工程地质、羌塘油气勘探等工作提供了基础数据。

Based on a comprehensive analysis of the 1:250,000 geological map of eastern Tibet and the 1:1,000,000 *Regional Geology of Tibet*, this study collects the latest advances in existing stratigraphic, petrological and structural studies of the Three-River Region, especially systematic research on the Jinsha River Suture Zone, Bitu Suture Zone and Bangong Lake-Nujiang River Suture Zone. The study divides this area into several major tectonic units: the Songpan-Garze Flysch Zone, North Qiangtang-Changdu-Simao Plate, South Qiangtang-Baoshan Block, and Gangdese-Lhasa Block. On this basis, the Songpan-Garze Block is further subdivided into three sub-units: the Bayan Har Block, Garze-Litang Lake Basin System and Zhongza Block. The North Qiangtang-Changdu-Simao Plate is subdivided into five units: the Jinsha River Paleo-Tethys Zone, Changdu Terrane, Lanping-Simao Terrane, Lincang Volcanic Rock Zone, and Bitu Paleo-Tethys Zone. The South Qiangtang-Baoshan Tectonic System is subdivided into three tectonic units: the South Qiangtang Block, Baoshan Block, and Bangong Lake-Nujiang River Middle Tethys Zone. The newly established tectonic unit division provides basic data for seismic disaster prevention, engineering geology, Qiangtang oil and gas exploration and other related works.

搜集汇总

背景与挑战

背景概述

该数据集是藏东地区的内动力环境地层岩性图，基于1:25万地质图和1:100万区域地质志综合分析，划分了多个构造单元，如松潘-甘孜复理石带和北羌塘-昌都-思茅板块等，为地震防灾、工程地质和油气勘探提供基础数据。数据集具有中等时空分辨率（1-10年时间分辨率，100km-1000km空间分辨率），覆盖2019年至2030年，需通过申请获取。