Palaeoceanographic changes during the late Albian-early Turonian in the Sergipe-Alagoas Basin

The file contains four worksheets: (1) the “XRF raw data” worksheet provides the X-Ray Fluorescence data obtained in samples from the Sergipe-Alagoas Basin. Analyses were performed using a Rigaku Supermini 200 Wavelength Dispersive XRF sequential spectrometer and the ZSX software by Rigaku. Results are displayed in counts per second. Only the data discussed in the paper “Palaeoceanographic changes during the late Albian-early Turonian in the Sergipe-Alagoas Basin (Northeast of Brazil) and their link with global events” are reported. ND: not determined; (2) the “XRF normalized” worksheet presents the elemental data as normalized to the sum of all elements measured in a sample and as log ratios. ND: not determined; (3) the “Magnetic data” worksheet contains Magnetic Susceptibility (MS) values measured at 976 Hz (Frequency 1) using a MFK1-FA Kappabridge (Advanced Geophysical Instruments Company, AGICO), and paleomagnetic data obtained with a 2G Enterprises 755-4K Long Core Squid magnetometer and a pulser. They include the Saturation of Isothermal Remanent Magnetization (SIRM), Backfield Isothermal Remanent Magnetization (BIRM), and S-ratio. MS/Fe values were obtained after normalizing both MS (m³/Kg) and Fe/sum data to the mean equals zero and standard deviation equals one (i.e., zero-mean normalization); (4) the “Age model” worksheet contains the ln(K/Al) data linearly interpolated for an average sampling space of 3 m, linearly detrended, and filtered for frequencies from 0.04 to 0.005 cycles/m. The worksheet also includes the tie points obtained by tuning the filtered ln(K/Al) data with the astronomical solution from Laskar (2020) and the sedimentation rates.