We present magnetic data for a 20-m long sedimentary sequence. The cores were retrieved in Grand Lake, Labrador, Canada at 245m water depth. The fiel includes magnetic susceptibility (kLF), magnetic susceptibility of the anhysteretic remanent magnetization (kARM), inclination values, maximum angular deviation (MAD) values, median destructive field (MDF), NRM intensity values at 0, 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70 and 80 mT deagnetization steps, pseudo S-ratio, S-ratio, Hcr/Hc and Mrs/Ms. Magnetic susceptibility was measured on the half section of the cores, on a multi-sensor core logger at ISMER (Rimouski, Canada). S-ratio, Hcr/Hc and Mrs/Ms were determined on discrete samples, measured with an alternating field gradient magnetometer at ISMER. Continuous paleomagnetic data (NRM, inclination, MAD, MDF) were obtained from u-channels measurements with a 2G Enterprises 755SRM‐1.65 cryogenic magnetometer at ISMER.