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据加速器质谱仪１４Ｃ测年，ＲＣ２６－１６孔提供了南海北部近１５２００ａ来古海洋学的连续沉积记录。其古海洋学发展过程可分为３期，（１）最后冰期（１５．２～１３．３ｋａ）；（２）冰消期（１３．３～９．０ｋａ）；（３）间冰期（９．０ｋａ～现代）。末次冰期至全新世时，冬季海水表层温度由１８℃上升至２４℃，夏季则保持在２７～２９℃之间。在１１ｋａ时，冬季水温曾短暂的一度变凉（约３℃），此可能代表区内新仙女木事件。末次冰期时，夏季与冬季温度差约为９℃，它的变化幅度较全新世的５℃要大。末次冰期时，表层水（０～５０ｍ）与次表层水（５０～１００ｍ）间碳、氧同位素递减梯度较全新世的为小。１５～１３ｋａ时大洋表层动物衍生营养含量相对较高，推测这与较强的冬季风导致较强的上升流，而造成高养分和高生物生产率有关，全新世时冬季风变弱。全新世碳酸盐补偿深度和有孔虫溶跃层较浅，５．３ｋａ时有短暂的变深，浮游有孔虫保存高峰和碳酸钙高峰值发生在１４～１２ｋａ间，相当于全球性的ＴｅｒｍｉｎａｔｉｏｎⅠ事件。
According to the 14C dating of the accelerator mass spectrometer, the RC26-16 borehole provides a continuous sedimentary record of nearly 15,200 years of paleoceanography in the northern South China Sea. The Paleoceanography can be divided into three phases: (1) the last glacial period (15.2 ~ 13.3 ka); (2) the eclogite period (13.3-9.0 ka); (3) the interglacial period . 0ka ~ modern). During the last glacial to the Holocene, the surface temperature of seawater in winter increased from 18 ℃ to 24 ℃ in winter and kept between 27 ℃ and 29 ℃ in summer. At 11 ka, the winter water temperature once briefly cooled (about 3 ° C), which may represent the new fairy wood event in the area. During the last ice age, the temperature difference between summer and winter was about 9 ℃, which was larger than that of the Holocene at 5 ℃. During the last glacial period, the descending gradient of carbon and oxygen isotope between surface water (0-50 m) and subsurface water (50-100 m) was smaller than that of Holocene. From 15 to 13 ka, the nutrient content derived from the surface oceanic animals was relatively high, which is presumed to be associated with stronger upwelling caused by the stronger winter monsoon, which resulted in higher nutrients and higher biological productivity. The Holocene winter monsoon weakened. The depth of carbonate compensation and foraminifera of the Holocene are shallow, with a brief decrease at 5.3 ka, the peak of planktonic foraminifera and the peak of calcium carbonate occur between 14 and 12 ka, which is equivalent to the global Termination I event.