d13C and d18O isotopic data for carbonate nodules and sedimentary carbonates in Guaymas Basin and Sonora Margin sediments collected from R/V El Puma, leaving Guaymas on October 14, 2014 and returning to Mazatlan on October 27, 2014

<p>d13C and d18O isotopic data for carbonate nodules and sedimentary carbonates in Guaymas Basin and Sonora Margin sediments collected from R/V El Puma (the Pacific Coast research vessel of the Autonomous University of Mexico) from October 14, 2014 to October 27, 2014.</p>

<p>Data for each core include: sample identification (core No., section number, cm within section, sample type), total sediment depth in cm, and d¹³C isotopic composition in permille. background = sediment around the nodule.</p>