Differential response at the seafloor during Palaeocene and Eocene ocean warming events at Walvis Ridge, Atlantic Ocean (ODP Site 1262)
Differential response at the seafloor during Palaeocene and Eocene ocean warming events at Walvis Ridge, Atlantic Ocean (ODP Site 1262)
复制标题
大西洋沃尔维斯海脊古新世和始新世海洋变暖事件期间海底的差异响应(ODP 站点 1262)
作者:
Deprez;Bornemann;Speijer
The Latest Danian Event (LDE,c. 62.1 Ma) is an early Palaeogene hyperthermal or transient (<200 ka) ocean warming event. We present the first deep‐sea benthic foraminiferal faunal record to study deep‐sea biotic changes together with new benthic (Nuttallides truempyi) stable isotope data from Walvis Ridge Site 1262 (Atlantic Ocean) to evaluate whether the LDE was controlled by similar processes as the minor early Eocene hyperthermals. The spacing of the double negative δ13C and δ18O excursion and the slope of the δ18O–δ13C regression are comparable, strongly suggesting a similar orbital control and pacing of eccentricity maxima as well as a rather homogeneous carbon pool. However, in contrast to early Eocene hyperthermals, the LDE exhibits a remarkable stability of the benthic foraminiferal fauna. This lack of benthic response could be related to the absence of threshold‐related circulation changes or better pre‐adaptation to elevated deep‐sea temperatures, as the LDE was superimposed on a cooling trend, in contrast to early Eocene warming.
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影响因子:
5.8
作者:
D. Lunt;P. Valdes;T. Jones;A. Ridgwell;A. Haywood;D. Schmidt;R. Marsh;M. Maslin
通讯作者:
D. Lunt;P. Valdes;T. Jones;A. Ridgwell;A. Haywood;D. Schmidt;R. Marsh;M. Maslin
影响因子:
1.9
作者:
N. Shackleton;M. Hall;A. Boersma
通讯作者:
A. Boersma
影响因子:
1.9
作者:
S. Monechi;V. Reale;G. Bernaola;B. Balestra
通讯作者:
B. Balestra
DOI:
--
发表时间:
2013
期刊:
影响因子:
--
作者:
P. Schulte;L. Schwark;P. Stassen;T. Kouwenhoven;A. Bornemann;R. Speijer
通讯作者:
R. Speijer
DOI:
--
发表时间:
2015
期刊:
影响因子:
--
作者:
Suzanne M Jennions;Ellen Thomas;D. Schmidt;D. Lunt;A. Ridgwell
通讯作者:
A. Ridgwell