Paleoceanographic changes during the late Albian-early Turonian in the Sergipe-Alagoas Basin (Northeast of Brazil) and their link with global events

The file contains 4 worksheets: (1) the “XRF raw data” worksheet provides the X-Ray Fluorescence data obtained in bulk samples from a boring core collected in 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 “Paleoceanographic 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 with respect to the sum of all elements measured in a sample and as the logarithms of elemental 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 measurements obtained with a 2G Enterprises 755-4K Long Core Squid magnetometer and a pulser. The latter include Anhysteretic Remanent Magnetization (ARM), Saturation of Isothermal Remanent Magnetization (SIRM), Hard Isothermal Remanent Magnetization (HIRM), Soft-IRM, and S-ratio. Directions of the Characteristic Remanent Magnetization (ChRM) obtained by degaussing of Natural Remanent Magnetization were determined through the Principal Component Analysis. Maximum Angle Deviation (MAD) values are also reported. 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). GR: Gyro Remanent (4) the “Age model” worksheet contains the ln (K/Al) data linearly interpolated for an average sampling space of 3.05 m, with the respective spectral analysis through the redfit method using the software PAST, and the ln (K/Al) data filtered in the long eccentricity (400 kyr) frequency range. The worksheet also reports the tie points obtained by tuning the filtered ln (K/Al) data with the astronomical solution from Laskar et al. (2011), also filtered at the long eccentricity. The age model obtained with the astronomical tuning provided the sedimentation rate.