Smear slide microscopy images of IODP Hole 386-M0082D

Collection of smear slide microscopy images from the above given hole of International Ocean Discovery Program (IODP) Expedition 386 (Japan Trench Paleoseismology). The offshore phase of this expedition took place between 2021-04-13 and 2021-06-01 onboard Japanese R/V Kaimei from and to Yokosuka, Japan. This was followed by an onshore phase onboard D/V Chikyu between 2022-02-14 – 2022-03-15. During the offshore phase, smear slides were prepared from paleontology samples collected with a tip-cut syringe from section ends every 5 m. During the onshore phase, smear slides samples were collected every 2 m to complement visual core description observations and identify the composition of fine-grained sediment. The smear slides were prepared by putting a small amount of sediment on a glass slide mixed with distilled water. The slide was subsequently evaporated on a hot plate, and the dried sample was mounted in Norland Optical Adhesive 61 using ultraviolet light. Sediment grain size and composition were examined under a polarized light petrographic microscope (Zeiss Axio Imager A1m POL-1) with an ocular micrometer. With a few exceptions, one photo with open and one with crossed nicol prisms was taken of each slide.For further methodological information see methods chapter in Strasser, M. et al., 2023 https://doi.org/10.14379/iodp.proc.386.102.2023

国际大洋发现计划（International Ocean Discovery Program, IODP）第386航次（日本海沟古地震学）指定钻孔的涂片显微镜图像集。该航次的海上阶段于2021年4月13日至6月1日在日本科考船R/V Kaimei上开展，往返于日本横须贺；随后于2022年2月14日至3月15日在D/V Chikyu船上进行陆上阶段工作。海上阶段每隔5米从岩心断面末端用尖端截断的注射器采集古生物样本并制备涂片；陆上阶段每隔2米采集涂片样本，以补充岩心目视描述观测结果，识别细粒沉积物成分。涂片制备流程为：取少量沉积物置于载玻片，加入蒸馏水混合；随后在加热板上蒸发，干燥样本通过紫外线固化的Norland Optical Adhesive 61固定。使用配备目镜测微尺的偏振光岩相显微镜（Zeiss Axio Imager A1m POL-1）分析沉积物粒度与成分。除少数例外，每张涂片均拍摄明场（尼科尔棱镜开放）与正交偏光（尼科尔棱镜交叉）照片。更多方法学细节参见Strasser, M.等人2023年发表的方法章节，DOI：https://doi.org/10.14379/iodp.proc.386.102.2023。