Science. 1965 Dec 31;150(3705):1822-4. doi: 10.1126/science.150.3705.1822.
Ice-rafted detritus is readily identified in sediment cores raised from the deep ocean floor around Antarctica. A few cores have reached a depth below which no ice-rafted material is found. This depth is interpreted as indicating the establishment of earliest Pleistocene glaciation in the Southern Hemisphere. It is just below a depth where there is a change in assemblages of Radiolaria which Hays associates with the Pliocene-Pleistocene boundary. The presence of ice-rafted material throughout the upper zone in cores taken south of the Polar Front indicates continuity of glaciation in Antarctica. Further north, near 45 degrees S in the Argentine Basin, zonation of the ice-rafted detritus can be used to delineate glacial stages of the Pleistocene.
从南极洲周围深海海底采集的沉积岩心很容易识别出冰山碎屑。一些岩心已经达到了没有发现冰山碎屑的深度。这一深度被解释为表明了在南半球最早的更新世冰川作用的建立。这刚好低于 Hays 认为与上新世-更新世边界有关的放射虫组合发生变化的深度。在南极地区采集的岩心的上层区域中存在冰山碎屑，这表明南极洲的冰川作用是连续的。再往北，在阿根廷盆地的南纬 45 度附近，冰山碎屑的分带可以用来划定更新世的冰川阶段。
