Nd isotopic excursion across Cretaceous ocean anoxic event 2 (Cenomanian-Turonian) in the tropical North Atlantic
Nd isotopic excursion across Cretaceous ocean anoxic event 2 (Cenomanian-Turonian) in the tropical North Atlantic
复制标题
热带北大西洋白垩纪海洋缺氧事件 2（塞诺曼阶-图伦阶）的 Nd 同位素漂移
作者：
K. MacLeod;E. Martin;S. Blair
在海洋缺氧事件2（OAE2）期间，来自德梅拉拉海隆的晚白垩世鱼类残骸显示出8个Nd单位的显著正偏移，这与在研究间隔的其余时间内观察到的极低Nd（t）值（−14至−16.5）叠加。OAE2的钕漂移是迄今为止最大的记录在海洋沉积物中，和大多数的转变估计发生在Nd值的Demerara上升被解释为Nd同位素签名的南美克拉通，而爆发的加勒比大火成岩省或增强混合的中间沃茨在北大西洋可能造成的漂移。
Late Cretaceous fish debris from Demerara Rise exhibits a dramatic positive excursion of 8 ϵ Nd units during ocean anoxic event 2 (OAE2) that is superimposed on extremely low ϵ Nd(t) values (−14 to −16.5) observed throughout the rest of the studied interval. The OAE2 ϵ Nd excursion is the largest yet documented in marine sediments, and the majority of the shift is estimated to have occurred over Nd values on Demerara Rise are explained as the Nd isotopic signature of the South American craton, whereas eruptions of the Caribbean large igneous province or enhanced mixing of intermediate waters in the North Atlantic could have caused the excursion.
影响因子：
3.5
作者：
Erbacher, J;Friedrich, O;Mutterlose, J
通讯作者：
Mutterlose, J