Linking the Variation of Sediment Accumulation Rate to Short Term Sea-Level Change Using Cyclostratigraphy: Case Study of the Lower Berriasian Hemipelagic Sediments in Central Tunisia (Southern Tethys)

High-resolution magnetic susceptibility and % CaCO 3 records (5 to 10 cm sampling interval) are used track astronomical cycles from a Lower Berriasian record central Tunisia. Six hundred twenty two samples were measured for carbonate content as paleoclimate proxies the detection of potential Milankovitch cycles. Elemental data using X-Ray fluorescence analyses was acquired 19 prove reliability MS signal on recording past paleoclimatic changes. We performed multiple spectral statistical techniques signal, such Multi-taper Method, Evolutive Harmonic Analysis, Correlation Coefficient, Time-optimization, Average Spectral Misfit obtain an optimal model. The application these analysis revealed pervasive dominance E 405 -kyr e 100 showing that climate turnover across early Berriasian—middle seems had been governed by long short orbital eccentricity identification in also allowed propose floating timescale studied section, with ~4 (E ) extracted, which points duration estimate ~1.6 Myr average sediment accumulation rate (SAR, after compaction) 2.77 cm/kyr. inferred ATS tuned La2004 solution. In addition, we applied DYNOT ρ1 methods seal-level change modeling reconstruct local eustatic profile matches previously published global charts.