昂龙岗日、角东、角西地区锆石CL、BSE图像拍摄图片（2025）

本数据为昂龙岗日、角东、角西等地区锆石CL、BSE图像数据。ANG22-1、JD-1、JX23LX1-4数据分别来源于西藏自治区昂龙岗日、角东和角西矿区。昂龙岗日、角东和角西矿区位于藏西北阿里地区，是近年来新发现的石英脉-伟晶岩型W-Nb-Ta矿床(点)。采集的样品岩性为淡色花岗岩，采样坐标为80°50′-81°05′，32°41′-32°54′。将选好的矿物样品经前处理后，使用场发射扫描电镜（FEI NOVA NANOSEM 450）进行CL、BSE图像采集。拍摄过程中，为避免因长时间扫描导致样品发热或辐照损伤，采用低束流分区域对矿物样品进行扫描。数据质量良好。获得的CL、BSE图像图像可有效揭示锆石岩浆振荡环带、包裹体、裂隙等发育情况，从而有助于选择环带明显，包裹体和裂隙不发育的锆石颗粒进行后续的U-Pb定年工作。This dataset comprises zircon cathodoluminescence (CL) and backscattered electron (BSE) image data from the Anggangri, Jiaodong, Jiaoxi and adjacent regions. The samples ANG22-1, JD-1, and JX23LX1-4 were collected from the Anggangri, Jiaodong, and Jiaoxi mining areas in the Tibet Autonomous Region, respectively. These mining areas, located in Ngari Prefecture, northwestern Tibet, are newly discovered quartz vein-pegmatite-type W-Nb-Ta deposits (occurrences) in recent years. The collected samples are leucogranite, with sampling coordinates ranging from 80°50′ to 81°05′E and 32°41′ to 32°54′N. After preprocessing the selected mineral samples, CL and BSE image acquisition was conducted using a field-emission scanning electron microscope (FEI NOVA NANOSEM 450). To avoid sample heating or radiation damage caused by prolonged scanning during imaging, the mineral samples were scanned in sub-regions with a low beam current. The data quality is excellent. The acquired CL and BSE images can effectively reveal the development of zircon magmatic oscillatory zoning, inclusions, fissures and other microstructures, thereby assisting in the selection of zircon grains with distinct zoning and poorly developed inclusions and fissures for subsequent U-Pb dating.