Borehole and core measurement data for the rock mass characterization of ICDP expedition 5071, DIVE (Drilling the Ivrea-Verbano zonE), borehole 5071_1_B

To structurally and petrophysically characterize the rock mass in the Ivrea-Vebarno Zone, a comprehensive downhole geophysical dataset from has been collected in borehole 5071_1_B (IGSN ICDP5071EH30001) of the ICDP-DIVE project located in the Central part of the Ivrea-Verbano Zone at the Linea Cadorna in Migiandone near Ornavasso. Natural gamma ray (GR), magnetic susceptibility (MS), mud parameter (MP), dual laterolog resistivity (DLL), full waveform sonic (FWS), acoustic televiewer (ATV), optical televiewer (OTV), single point resistance (SPR) logs and vertical seismic profiling data (VSP) are recorded.

The borehole data is complemented by magnetic susceptibility measurements conducted on the cored rocks on site during the drilling campaign and by density measurements of 96 core sections using a multi sensor core logger (MSCL) after the drilling campaign at the BGR Core Repository in Berlin-Spandau. Additionally, for 15 whole-round core samples, the bulk density as well as ultrasonic velocities are measured at ambient conditions in the laboratory at Montanuniversität Leoben.

Several logging campaigns have been conducted. The logging data contain logs from a logging campaign conducted by GFZ-Operational Support Group (OSG) after the drilling operation in December 2022 and from complementary logging operations carried out by Montanuniversität Leoben and the University of Lausanne in June 2023. The repository data include: processed and/or interpreted properties of the well log data; zero-offset VSP P- and S-wave velocities; and petrophysical properties inferred from the core measurements. The full description of the data and methods is provided in the data description file.

为对伊夫雷亚-韦巴诺带（Ivrea-Vebarno Zone）的岩体开展结构与岩石物理特征表征，研究人员于位于奥纳瓦索附近米吉安多内的卡多纳沿线、伊夫雷亚-韦巴诺带中部的ICDP-DIVE项目的5071_1_B钻孔（IGSN编号：ICDP5071EH30001）中采集了一套完整的井下地球物理数据集。本次采集的测井数据涵盖自然伽马射线（Natural Gamma Ray, GR）、磁化率（Magnetic Susceptibility, MS）、泥浆参数（Mud Parameter, MP）、双侧向电阻率（Dual Laterolog Resistivity, DLL）、全波形声波测井（Full Waveform Sonic, FWS）、声波成像测井（Acoustic Televiewer, ATV）、光学成像测井（Optical Televiewer, OTV）、单点电阻测井（Single Point Resistance, SPR）以及垂直地震剖面（Vertical Seismic Profiling, VSP）数据。

该钻孔数据集还补充了钻井现场岩芯的磁化率原位测量数据，以及钻探作业结束后，在柏林-施潘道的BGR岩芯库（BGR Core Repository）中，借助多传感器岩芯扫描仪（Multi Sensor Core Logger, MSCL）对96段岩芯完成的密度测量数据。此外，针对15块完整岩芯样品，研究人员在莱奥本矿业大学（Montanuniversität Leoben）的实验室中，于常温环境下开展了块体密度与超声波速度测试。

本次测井共实施两期作业：第一期为2022年12月钻井作业完成后，由GFZ运维支持小组（GFZ-Operational Support Group, OSG）开展的测井作业；第二期为2023年6月由莱奥本矿业大学与洛桑大学共同实施的补充测井作业。本数据集包含的内容包括：经处理和/或解释的测井数据属性、零偏移距垂直地震剖面（Zero-offset VSP）的纵波与横波速度，以及由岩芯测量推导得到的岩石物理参数。完整的数据与方法说明详见数据描述文档。