Scientific Results, Volume 181 L.D. Millwood et al., Ms 181SR-208 Table ATD4. Carbonate model parameter estimates, Site 1122. Note: FD = first derivative of the spectral value, DF = degrees of freedom. Variable DF Parameter estimate Standard error t value Probability > |t| Intercept 1 -3.468443 0.34917308 -9.933 0.0001 R1 1 0.083495 0.03199619 2.61 0.0102 FD1 1 -0.135564 1.09738822 -0.124 0.9019 FD2 1 0.385547 1.25895955 0.306 0.7599 FD3 1 2.843244 1.67442428 1.698 0.092 FD4 1 -6.050862 1.93205619 -3.132 0.0022 FD5 1 3.270204 2.08845871 1.566 0.1199 FD6 1 1.546564 2.39147613 0.647 0.519 FD7 1 -1.827609 2.65128781 -0.689 0.4919 FD8 1 6.306459 2.91249788 2.165 0.0323 FD9 1 -0.130816 3.62342379 -0.036 0.9713 FD10 1 -1.997526 3.67184398 -0.544 0.5874 FD11 1 -4.331576 3.61102073 -1.2 0.2326 FD12 1 -0.657204 2.31582148 -0.284 0.777 FD13 1 3.693833 2.74086755 1.348 0.1802 FD14 1 3.766126 2.99810836 1.256 0.2114 FD15 1 0.598826 2.80640415 0.213 0.8314 FD16 1 -2.192557 2.76860924 -0.792 0.4299 FD17 1 -4.819435 3.06717936 -1.571 0.1186 FD18 1 -1.86988 3.03179697 -0.617 0.5385 FD19 1 -2.719279 3.32958889 -0.817 0.4157 FD20 1 4.32702 3.12336881 1.385 0.1684 FD21 1 4.353374 3.04718516 1.429 0.1556 FD22 1 5.845123 3.09968423 1.886 0.0617 FD23 1 3.662064 3.29173707 1.113 0.2681 FD24 1 3.939838 2.92208429 1.348 0.18 FD25 1 2.067159 2.45690793 0.841 0.4017 FD26 1 -5.19903 2.19128415 -2.373 0.0192 FD27 1 -3.364824 1.87781259 -1.792 0.0756 FD28 1 -5.120462 2.73008164 -1.876 0.063 FD29 1 -0.528119 1.9072034 -0.277 0.7823 FD30 1 0.016276 1.66908074 0.01 0.9922