塔里木盆地罗布泊钻孔同位素/青藏高原野外地质考察记录及照片数据集

数据包含塔里木盆地罗布泊钻孔180米沉积岩心的碳酸盐碳同位素和氧同位素。沉积物中的碳酸盐碳氧同位素记录了地质历史时期的水文和植被等信息，是目前古环境示踪研究应用的主要指标之一。罗布泊钻孔沉积物样品经磨匀过筛后，由样品处理单元（碳酸盐装置）和MAT252同位素质谱联机的全自动在线系统完成碳氧同位素分析。样品的分析精度为：碳同位素优于±0.06‰，氧同位素优于±0.08‰。通过罗布泊钻孔的高分辨率碳氧同位素数据，可以重建塔克拉玛干沙漠更新世以来干旱环境的演化历史，进而探讨区域的气候变化趋势、变率、和影响因素。青藏高原野外地质考察照片数据集，主要为野外考察过程中拍摄的野外工作照以及地质剖面照片。

This dataset contains carbonate carbon and oxygen isotope data from the 180-meter sediment core drilled in Lop Nur, Tarim Basin. The carbonate carbon and oxygen isotopes in sediments record hydrological and vegetation information from geological history, and are one of the main proxies currently applied in paleoenvironmental tracing research. After homogenization and sieving, sediment samples from the Lop Nur core were analyzed for carbon and oxygen isotopes using a fully automated online system coupled with a sample preparation unit (carbonate device) and a MAT252 isotope ratio mass spectrometer. The analytical precision of the samples is better than ±0.06‰ for carbon isotopes and ±0.08‰ for oxygen isotopes. Using the high-resolution carbon and oxygen isotope data from the Lop Nur core, the evolutionary history of the arid environment in the Taklimakan Desert since the Pleistocene can be reconstructed, allowing further investigation into regional climate change trends, variability, and influencing factors. The dataset of field geological survey photos from the Qinghai-Tibet Plateau mainly includes field work photographs and geological section photographs taken during field surveys.

搜集汇总

背景与挑战

背景概述

该数据集包含塔里木盆地罗布泊180米长沉积物核心的碳氧同位素数据，用于研究更新世以来干旱环境演变；同时包含青藏高原地层剖面照片，为地质考察提供视觉资料。数据格式为XLSX，时间分辨率为年，空间分辨率为1-10米。