X-ray computed microtomography datasets obtained using stromatolites samples from Lake Ashenge, Tigray, Ethiopia

X-ray computed microtomography (X-ray µCT) datasets acquired from a sample of stromatolites growing over basalt at Lake Ashenge, Ethiopia. Data are presented as DICOM files with all associated metadata. X-ray µCT data were acquired using a Zeiss Xradia Versa 620 X-ray microscope (Korea Basic Science Institute Gwangju Centre, KJ318) operating at an energy of 80 kV, power of 10 W and equipped with an LE4 filter. The sample was rotated horizontally by a 180°+fan and scanned using the vertical stitching feature over 5 hours, acquiring 2401 projections at a voxel size of 6.7 µm. Tomograms were exported as DICOM files. DICOM data are suitable for 3D visualisation using most tomography visualisation software, e.g. Dragonfly.本数据集为埃塞俄比亚阿申奇湖（Lake Ashenge）生长于玄武岩之上的叠层石样本采集的X射线计算机显微断层扫描（X-ray computed microtomography, X-ray µCT）数据集，数据以医学数字成像与通信（DICOM）格式文件及全部关联元数据形式提供。 本次X-ray µCT数据采用蔡司（Zeiss）Xradia Versa 620 X射线显微镜采集，该设备部署于韩国基础科学研究所光州中心（编号KJ318），工作参数为加速电压80 kV、功率10 W，配备LE4滤光片。样本以水平旋转180°+扇形扫描模式运行，并通过垂直拼接功能完成全扫描，总耗时5小时，共采集2401幅投影图像，体素尺寸为6.7 µm，采集得到的断层图像以DICOM格式导出。 该DICOM格式数据可兼容绝大多数断层扫描可视化软件实现三维可视化，例如Dragonfly。