Thermal conductivity of IODP Hole 389-M0100A@en

Thermal conductivity data from the above given hole of International Ocean Discovery Program (IODP) Expedition 389 (Hawaiian Drowned Reefs). Measurements of thermal conductivity took place during the onshore phase of the expedition, which took place between 2025-02-06 to 2025-02-26 at the Bremen Core Repository (BCR) hosted at MARUM – Center for Marine Environmental Sciences, University of Bremen. Thermal conductivity was measured with the TeKa TK04 system using the HLQ probe H11047. For each measurement five measuring cycles are generally recorded with a 10 minutes pause between measurements. Archive split cores were measured at room temperature. From these recordings the coefficient pf thermal conductivity was then calculated according to the formula given in Webster et al. (2025). Thermal conductivity measurements were generally taken every 10 meters at locations with even split core surfaces to increase rock contact with the probe. However, the uneven surfaces of the dominating lithologies (reef limestones and vesicular lava) prevented successful measurements in some sections. […]本数据集涵盖国际大洋发现计划（International Ocean Discovery Program, IODP）389航次（夏威夷淹没礁）上述钻孔的热导率数据。热导率测量于航次陆上阶段开展，实施时段为2025年2月6日至2025年2月26日，作业地点位于不来梅大学海洋环境科学中心（MARUM – Center for Marine Environmental Sciences）托管的不来梅岩芯库（Bremen Core Repository, BCR）。热导率测量采用TeKa TK04系统搭配HLQ探针H11047完成。单次测量通常记录5个测量循环，各循环间设置10分钟的静置间隔。归档劈分岩芯均在室温条件下开展测量。基于上述测量数据，依照Webster等人（2025）提出的公式计算得到热导率系数。为提升探针与岩石的接触效果，测量通常在劈分岩芯面平整的位置每10米布设一次。但研究区优势岩性（礁灰岩与多孔熔岩）的表面凹凸不平，导致部分岩芯段无法完成有效测量。[…]