(Appendix) Oxygen isotope record and carbonate mineralogy of the top part of ODP Hole 101-633A@en

Hole 633A was drilled in the southern part of Exuma Sound on the toe-of-slope of the southeastern part of Great Bahama Bank during ODP Leg 101. The top 55 m, collected as a suite of six approximately 9.5-m-long hydraulic piston cores, represents a Pliocene-Pleistocene sequence of periplatform carbonate ooze, a mixture of pelagic calcite (foraminifer and coccolith tests), some pelagic aragonite (pteropod tests), and bank-derived fine aragonite and magnesian calcite. A 1.6-m.y.-long hiatus was identified at 43.75 mbsf using calcareous nannofossil biostratigraphy and magnetostratigraphy. […]633A号钻孔于大洋钻探计划（Ocean Drilling Program, ODP）第101航次期间，在大巴哈马滩东南部坡脚处的埃克苏马湾南部钻成。该钻孔顶部55米以一套共计6根长度约9.5米的液压活塞岩心（hydraulic piston cores）获取，对应上新世-更新世时期的台地周缘碳酸盐软泥（periplatform carbonate ooze）序列，其组成为远洋方解石（有孔虫与颗石藻壳体）、部分远洋文石（翼足类壳体），以及来自滩体的细粒文石与镁方解石的混合物。通过钙质超微化石生物地层学与磁性地层学研究，在43.75米钻孔下方深度（meters below seafloor, mbsf）处识别出一段时长160万年的沉积间断。[…]