latitude longitude dut_O18c ruber_O18c ruber_MgCa MgCa_temp 7.856 -83.608 -0.16 -2.87 null null 7.317 -84.113 0.69 -2.78 4.34 27.1 5.846 -86.449 0.16 -2.30 4.31 27.0 4.614 -86.704 0.29 null 4.18 26.6 3.212 -86.486 0.21 -2.89 4.23 26.8 0.022 -86.463 1.05 null null null -0.513 -81.995 0.45 -1.40 3.33 24.1 -1.853 -82.787 0.61 null null null