Table AT1. Sr isotope data, La Luna Formation, Venezuela.
Sample
87Sr/86Sr (corrected)
Standard error (±%)
Carbon (wt%)
TOC
(wt%)
Average of standards
Las Hernandez




MLA 75(0.5) 0.707756 0.0008 95.27 1.28 0.710253
MLA 75(0.5) 0.707755 0.0007 95.27 1.28 0.710264
MLA 75(1.0) 0.707745 0.0008 95.27 1.28 0.710253
MLA 75(2.0) 0.707767 0.0015 95.27 1.28 0.710253
MLA 75(4.0) 0.707807 0.0018 95.27 1.28 0.710253
MLA 75(6.0) 0.707817 0.0014 95.27 1.28 0.710253
MLA 80(0.5) 0.707703 0.0006 97.49 0.66 0.710264
MLA 80(1.0) 0.707685 0.0007 97.49 0.66 0.710264
MLA 80(2.0) 0.707675 0.0008 97.49 0.66 0.710264
MLA 80(4.0) 0.707680 0.0010 97.49 0.66 0.710264
MLA 80(6.0) 0.707679 0.0010 97.49 0.66 0.710264
MLA 84(0.5) 0.707547 0.0007 95.51 4.11 0.710264
MLA 84(0.5) 0.707511 0.0009

0.710260
MLA 84(1.0) 0.707557 0.0008

0.710260
MLA 84(2.0) 0.707507 0.0008 95.51 4.11 0.710264
MLA 84(4.0) 0.707514 0.0008 95.51 4.11 0.710264
MLA 84(6.0) 0.707523 0.0156 95.51 4.11 0.710264
MLA 87 0.707615 0.0007 69.67 6.73 0.710252
MLA 92 0.707591 0.0007 83.34 1.16 0.710260
MLA 96 0.707607 0.0010 82.52 1.54 0.710260
MLA 101 0.707526 0.0008 96.46 2.48 0.710264
MLA 105 0.707690 0.0006 26.09 5.13 0.710260
MLA 108 0.707555 0.0007 98.40 2.56 0.710260
MLA 108 0.707562 0.0007

0.710260
MLA 112 0.707698 0.0010 45.25 2.72 0.710260
MLA 115 0.707837 0.0008 34.17 3.13 0.710260
MLA 119 0.707747 0.0008 77.28 2.06 0.710260
MLA 119 0.707746 0.0008

0.710260
MLA 122 0.707803 0.0007 70.36 2.96 0.710260
MLA 126 0.707853 0.0007 77.07 2.33 0.710260
MLA 129 0.708039 0.0008 32.54 1.72 0.710260
MLA 130 0.708483 0.0009 38.10 1.11 0.710264
San Pedro del Rio



MLA 475 0.707762 0.0006 26.01 1.82 0.710260
MLA 483 0.707837 0.0008 59.04 0.76 0.710260
MLA 491 0.707961 0.0007 18.97 2.06 0.710260
MLA 499 0.707809 0.0006 71.13 1.25 0.710260
MLA 507 0.707808 0.0009 19.25 2.85 0.710260
MLA 515 0.707868 0.0005 30.68 2.25 0.710260
MLA 523 0.707711 0.0008 20.28 0.89 0.710260
MLA 531 0.707681 0.0005 87.94 0.63 0.710260
MLA 539 0.707968 0.0008 28.77 1.04 0.710260
MLA 547 0.708012 0.0005 68.32 1.26 0.710260
MLA 555 0.707916 0.0006 17.47 1.87 0.710260
MLA 563 0.707752 0.0007 72.64 1.15 0.710260
MLA 571 0.707790 0.0005 30.67 2.27 0.710260
MLA 579 0.707766 0.0008 41.31 0.88 0.710260
MLA 587 0.708268 0.0008 54.53 0.70 0.710260
MLA 595 0.708021 0.0008 56.17 2.20 0.710260
MLA 603 0.707807 0.0007 49.82 1.08 0.710260
MLA 611 0.707899 0.0008 49.19 0.66 0.710260
MLA 619 0.707960 0.0008 58.49 0.49 0.710260
MLA 627 0.707956 0.0007 42.90 0.79 0.710260
MLA 635 0.707910 0.0007 37.75 0.53 0.710260
MLA 643 0.707813 0.0007 52.21 1.34 0.710260
MLA 651 0.707782 0.0006 62.59 2.22 0.710260
MLA 659 0.707914 0.0007 71.82 1.50 0.710260
MLA 667 0.708125 0.0006 9.57 0.67 0.710260
MLA 675 0.707933 0.0008 38.01 1.03 0.710260
MLA 683 0.707969 0.0007 39.90 4.06 0.710260
MLA 691 0.708276 0.0008 9.70 3.21 0.710260
MLA 697 0.710384 0.0008 10.11 3.24 0.710260

Note: TOC = total organic carbon.