Fig. 7

a The δ18O data of the core MD05-2928. Red dashed line is the ETP signal of this parameter. b Wavelet spectrum of the δ18O. White dashed lines show the Milankovitch periods (100, 40, and 20 ka)
a The δ18O data of the core MD05-2928. Red dashed line is the ETP signal of this parameter. b Wavelet spectrum of the δ18O. White dashed lines show the Milankovitch periods (100, 40, and 20 ka)