scholarly journals Paleoceanographic Implications of Stable–Isotope Data from Upper Miocene–Lower Pliocene Sediments from the Southeast Atlantic (Deep Sea Drilling Project Site 519)

Author(s):  
J.A. McKenzie ◽  
H. Weissert ◽  
R.Z. Poore ◽  
R.C. Wright ◽  
S.F. Percival ◽  
...  
2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Christopher J. Pollock ◽  
Pablo Capilla-Lasheras ◽  
Rona A. R. McGill ◽  
Barbara Helm ◽  
Davide M. Dominoni

2014 ◽  
Vol 10 (3) ◽  
pp. 1001-1015 ◽  
Author(s):  
N. J. de Winter ◽  
C. Zeeden ◽  
F. J. Hilgen

Abstract. Deep marine successions of early Campanian age from DSDP (Deep Sea Drilling Project) site 516F drilled at low paleolatitudes in the South Atlantic reveal distinct sub-Milankovitch variability in addition to precession, obliquity and eccentricity-related variations. Elemental abundance ratios point to a similar climatic origin for these variations and exclude a quadripartite structure as an explanation for the inferred semi-precession cyclicity in the magnetic susceptibility (MS) signal as observed in the Mediterranean Neogene for precession-related cycles. However, semi-precession cycles as suggested by previous work are likely an artifact reflecting the first harmonic of the precession signal. The sub-Milankovitch variability, especially in MS, is best approximated by a ~7 kyr cycle as shown by spectral analysis and bandpass filtering. The presence of sub-Milankovitch cycles with a period similar to that of Heinrich events of the last glacial cycle is consistent with linking the latter to low-latitude climate change caused by a non-linear response to precession-induced variations in insolation between the tropics.


2019 ◽  
Vol 569 ◽  
pp. 423-435 ◽  
Author(s):  
Guofeng Zhu ◽  
Huiwen Guo ◽  
Dahe Qin ◽  
Hanxiong Pan ◽  
Yu Zhang ◽  
...  

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