(Table 1) Average aluminium accumulation rate at 40 DSDP Sites for the time interval 0-10 Ma and relative rates for other time intervals

A six-fold increase in the rate of accumulation of Al in north and central Atlantic and Pacific Ocean sediments indicates vastly increased denudation of the continents during the past 15 Ma. The increase is more apparent in hemipelagic than pelagic sites, demonstrating widely distributed local controls. Similarities in the rate of increase in the Atlantic and Pacific show that tectonic elevation is not responsible for the difference in sedimentation rate. Also, similarities in the difference at sites of low and high latitude suggest that glaciation is not the most significant source. A lack of correspondence between sedimentation rates and Vail's sea-level curve similarly rule out that effect. The conclusion drawn here is that worldwide climatic deterioration during the late Tertiary is the explanation for the striking increase in detrital sedimentation in the World ocean.北大西洋、中大西洋及太平洋沉积物中铝（Al）的累积速率增长了六倍，这表明过去15 Ma间大陆剥蚀作用显著增强。相较于远洋沉积站位，半远洋沉积站位的该增长更为显著，这反映出其受控于广泛分布的局地因素。大西洋与太平洋的沉积速率增长速率存在相似性，这表明构造抬升并非造成两者沉积速率差异的原因。此外，高低纬度站位的沉积速率增长差异呈现相似性，这说明冰川作用并非最主要的成因。沉积速率与维尔（Vail）海平面曲线之间缺乏对应性，这同样排除了海平面变化的影响。本研究得出的结论为：晚第三纪期间全球气候恶化，是全球海洋碎屑沉积作用显著增强的合理解释。