中沙环礁晚全新世珊瑚礁沉积物理力学特性数据集（2020年）

本数据集为项目于2020年5月在中沙群岛中北暗沙水下钻探所获取的珊瑚礁沉积岩心和珊瑚骨骼岩心样品仪器测试分析所获得的相关参数数据，包括：年代学（C-14和U系年龄）、矿物学（文石、高镁方解石）、地球化学（C、O同位素，常微量元素：Ca、Sr、Mg、Al、Ti、Fe、Li、B、V、Cr、Mn、Co、Ni、Cu、Zn、As、Cd、Ba、Pb）、物理（干燥质量、饱和质量、体积、干密度、饱和密度、比重、孔隙率、干燥热导率、饱和热导率、干燥波速、饱和波速）、力学（弹性模量、泊松比、峰值应力、起裂应力、起裂应变、损伤应力、损伤应变、损伤程度、总轴向应变、闭合应力、闭合应力/峰值应力、起裂强度、起裂强度/峰值应力、损伤强度、损伤强度/峰值应力）、声学（纵波声速、声衰减系数、频率）、电学（电阻率）、生物（珊瑚骨骼生长率）。

This dataset comprises relevant parameter data derived from instrumental testing and analysis of coral reef sediment cores and coral skeletal core samples acquired through underwater drilling at Zhongbei Shoal, Zhongsha Islands in May 2020. The covered parameters are categorized into the following types: Chronology (C-14 and U-series ages), Mineralogy (aragonite, high-magnesium calcite), Geochemistry (carbon and oxygen isotopes, major and trace elements including Ca, Sr, Mg, Al, Ti, Fe, Li, B, V, Cr, Mn, Co, Ni, Cu, Zn, As, Cd, Ba, Pb), Physical properties (dry mass, saturated mass, volume, dry density, saturated density, specific gravity, porosity, dry thermal conductivity, saturated thermal conductivity, dry wave velocity, saturated wave velocity), Mechanical properties (elastic modulus, Poisson's ratio, peak stress, initiation stress, initiation strain, damage stress, damage strain, damage degree, total axial strain, closure stress, closure stress/peak stress, initiation strength, initiation strength/peak stress, damage strength, damage strength/peak stress), Acoustic properties (compressional wave velocity, acoustic attenuation coefficient, frequency), Electrical properties (resistivity), and Biological properties (coral skeletal growth rate).