利用210Pb、137Cs和14C测定阿拉伯海东部大陆边缘的沉积物沉积速率。
Sediment deposition rates on the continental margins of the eastern Arabian Sea using 210Pb, 137Cs and 14C.
作者信息
Somayajulu B L, Bhushan R, Sarkar A, Burr G S, Jull A J
机构信息
Physical Research Laboratory, Ahmedabad, India.
出版信息
Sci Total Environ. 1999 Sep 30;237-238:429-39. doi: 10.1016/s0048-9697(99)00155-2.
Eight gravity cores from the active eastern continental margins of the Arabian Sea were dated using 210Pbxs, 137Cs and 14C. The short-term (< or = 100 years) sedimentation rates range from 0.06 to 0.66 cm/year where as the long-term (> or = 1000 years) ones using AMS 14C on planktonic foraminifera varied from 0.004 to 0.13 cm/year. For long-term chronology (< or = 50,000 years) AMS dating of well-cleaned planktonic foraminifera is most suited.
利用210Pbxs、137Cs和14C对阿拉伯海东部活跃大陆边缘的8个重力岩芯进行了年代测定。短期（≤100年）沉积速率为0.06至0.66厘米/年，而使用浮游有孔虫的AMS 14C测定的长期（≥1000年）沉积速率则在0.004至0.13厘米/年之间。对于长期年代学（≤50000年），对清洁良好的浮游有孔虫进行AMS测年最为合适。
Zotero 插件