Preserved Spreading Length (AGE in Ma, length in 10^3 km) Data from: Conrad and Lithgow-Bertelloni, Geology, 35, 29-32, 2007. AGE GLOBAL R.FAR E.PAC W.PAC S.PAC S.BAS E.IND W.IND S.ATL N.ATL 1.0 110.4 110.4 11.8 9.2 12.6 0.0 15.7 24.8 14.2 22.0 2.0 110.6 110.6 11.6 9.2 12.6 0.0 15.6 24.9 14.3 22.3 3.0 110.4 110.4 11.6 9.3 12.6 0.0 15.5 24.7 14.3 22.4 4.0 110.2 110.2 11.4 9.3 12.7 0.0 15.4 24.5 14.3 22.5 5.0 110.0 110.0 11.2 9.4 12.8 0.0 15.3 24.2 14.2 22.8 6.0 109.6 109.6 11.0 9.5 12.9 0.0 15.1 24.0 14.2 22.9 7.0 108.7 108.7 10.8 9.6 13.0 0.0 15.0 23.6 14.0 22.7 8.0 108.1 108.1 10.4 9.6 13.2 0.0 14.9 23.4 14.0 22.7 9.0 107.8 107.8 9.9 9.5 13.6 0.0 14.8 23.2 13.9 22.9 10.0 107.7 107.8 9.3 9.4 14.2 0.0 14.7 23.1 13.9 22.9 11.0 107.6 108.2 8.7 9.3 14.9 0.0 14.7 22.9 14.0 23.1 12.0 107.6 108.6 8.2 9.2 15.5 0.0 14.7 22.7 14.0 23.3 13.0 107.3 108.8 7.7 9.2 16.0 0.0 14.7 22.4 14.1 23.2 14.0 106.7 108.7 7.3 9.3 16.1 0.0 14.7 22.2 14.1 23.0 15.0 106.1 108.5 7.0 9.4 16.0 0.0 14.8 22.1 14.0 22.9 16.0 105.1 108.0 6.6 9.4 15.8 0.0 14.8 21.9 14.0 22.6 17.0 104.6 107.8 6.2 9.4 15.7 0.0 14.9 21.9 14.0 22.4 18.0 105.3 109.0 5.8 9.6 15.7 0.0 15.0 22.2 14.1 22.3 19.0 106.1 110.6 5.3 9.8 15.7 1.2 15.2 22.4 14.2 22.3 20.0 106.7 111.9 4.8 10.1 15.7 2.1 15.4 22.3 14.3 22.0 21.0 107.5 113.5 4.4 10.4 15.7 3.0 15.6 22.2 14.4 21.8 22.0 108.7 115.4 4.1 10.8 15.7 3.9 15.7 22.2 14.6 21.7 23.0 108.3 115.6 3.7 11.0 15.8 4.1 15.8 21.9 14.6 21.5 24.0 108.1 115.6 3.6 11.1 15.9 4.1 15.8 21.5 14.7 21.4 25.0 108.0 115.6 3.6 11.2 15.9 4.1 15.8 21.3 14.8 21.3 26.0 107.9 115.4 3.7 11.2 15.8 4.1 15.8 21.1 14.9 21.3 27.0 107.1 114.6 3.7 11.2 15.7 4.2 15.8 20.6 14.8 21.1 28.0 106.9 114.4 3.6 11.1 15.5 4.7 15.8 20.2 14.9 21.2 29.0 106.4 113.8 3.5 11.0 15.1 5.4 15.7 19.9 14.8 21.0 30.0 105.2 112.7 3.3 10.8 14.7 5.7 15.6 19.5 14.8 20.9 31.0 103.7 111.3 3.0 10.6 14.1 5.6 15.4 19.4 14.8 20.8 32.0 101.3 108.9 2.8 10.4 13.2 5.1 14.8 19.4 14.7 20.8 33.0 98.4 105.9 2.7 10.2 12.3 4.4 14.3 19.2 14.6 20.6 34.0 95.8 103.3 2.6 10.0 11.5 3.4 13.7 19.0 14.6 20.9 35.0 93.9 101.3 2.5 9.9 10.8 2.8 13.2 18.8 14.5 21.3 36.0 92.8 100.3 2.4 9.8 10.4 2.5 12.9 18.6 14.4 21.9 37.0 93.3 100.9 2.2 9.8 10.3 2.6 12.8 18.8 14.3 22.5 38.0 93.8 101.6 1.9 9.7 10.2 2.9 12.7 18.9 14.2 23.3 39.0 92.4 100.3 1.7 9.6 10.1 3.1 11.6 18.7 14.1 23.5 40.0 90.7 98.7 1.5 9.5 10.1 3.2 10.3 18.3 14.1 23.8 41.0 88.4 96.4 1.3 9.4 10.0 3.3 8.9 17.8 14.0 23.8 42.0 85.5 93.6 1.2 9.3 9.8 3.3 7.5 16.7 13.9 23.8 43.0 83.2 91.3 1.0 9.2 9.8 3.2 6.3 16.1 13.9 23.7 44.0 82.5 91.7 0.0 9.2 9.7 3.2 6.3 15.7 13.8 23.7 45.0 82.5 91.7 0.0 9.1 9.6 3.3 6.6 15.7 13.7 23.9 46.0 82.9 92.0 0.0 9.1 9.4 3.3 6.5 16.5 13.6 24.0 47.0 83.4 92.7 0.0 9.2 9.1 3.2 6.6 17.5 13.5 24.2 48.0 83.7 93.0 0.0 9.3 8.8 3.2 6.5 18.3 13.3 24.2 49.0 83.7 93.1 0.0 9.3 8.5 3.2 6.1 19.1 13.3 24.2 50.0 83.8 93.2 0.0 9.4 8.2 3.1 6.1 19.7 13.2 24.1 51.0 84.5 93.9 0.0 9.4 8.0 3.1 7.3 19.6 13.0 24.0 52.0 85.2 94.6 0.0 9.4 8.0 3.0 8.3 19.6 13.0 23.9 53.0 86.0 95.4 0.0 9.4 8.0 2.8 9.3 19.7 12.8 24.1 54.0 87.1 96.8 0.0 9.6 8.1 2.5 10.4 19.8 12.5 24.1 55.0 87.3 97.2 0.0 9.9 8.2 2.3 11.3 19.7 12.2 23.7 56.0 86.7 96.8 0.0 10.1 8.3 2.0 11.5 19.4 11.8 23.6 57.0 86.0 96.3 0.0 10.4 8.4 1.7 11.8 18.9 11.5 23.4 58.0 84.6 95.2 0.0 10.6 8.5 1.3 12.1 18.3 11.3 22.4 59.0 82.5 93.1 0.0 10.6 8.4 0.0 12.2 17.9 11.2 21.2 60.0 80.8 91.4 0.0 10.6 8.4 0.0 12.0 17.7 11.2 20.4 61.0 78.7 89.3 0.0 10.6 8.4 0.0 11.4 17.6 11.3 19.2 62.0 76.8 87.3 0.0 10.6 8.3 0.0 10.7 18.0 11.2 17.9 63.0 76.2 86.8 0.0 10.6 8.3 0.0 10.1 18.7 11.1 17.5 64.0 76.1 86.7 0.0 10.6 8.2 0.0 9.3 19.3 11.3 17.4 65.0 76.5 87.1 0.0 10.6 8.1 0.0 8.9 20.1 11.7 17.2 66.0 77.4 87.9 0.0 10.6 8.0 0.0 8.5 20.7 12.4 17.2 67.0 77.5 88.0 0.0 10.5 7.8 0.0 8.2 20.6 13.1 17.4 68.0 77.2 87.5 0.0 10.3 7.5 0.0 7.9 20.1 13.8 17.5 69.0 76.7 86.9 0.0 10.2 7.3 0.0 7.8 19.5 14.3 17.6 70.0 76.0 85.9 0.0 9.9 7.1 0.0 7.8 18.7 14.6 17.8 71.0 75.0 84.7 0.0 9.7 6.9 0.0 7.8 18.1 14.5 17.8 72.0 74.6 84.3 0.0 9.6 6.8 0.0 7.9 17.9 14.4 18.0 73.0 74.2 83.8 0.0 9.5 6.8 0.0 7.9 17.7 14.4 18.0 74.0 74.0 83.5 0.0 9.5 6.7 0.0 7.7 17.5 14.4 18.2 75.0 73.8 83.2 0.0 9.4 6.6 0.0 7.6 17.5 14.4 18.2 76.0 73.6 82.9 0.0 9.4 6.6 0.0 7.5 17.5 14.3 18.3 77.0 73.2 82.5 0.0 9.3 6.5 0.0 7.3 17.4 14.2 18.5 78.0 72.5 81.7 0.0 9.2 6.4 0.0 7.0 17.3 14.1 18.4 79.0 72.2 81.4 0.0 9.2 6.4 0.0 6.8 17.3 14.0 18.5 80.0 71.6 80.8 0.0 9.2 6.4 0.0 6.7 17.0 13.7 18.6 81.0 71.5 80.7 0.0 9.1 6.4 0.0 6.7 16.8 13.7 18.8 82.0 70.4 79.3 0.0 8.9 6.2 0.0 6.9 15.8 13.6 18.9 83.0 69.4 78.0 0.0 8.6 5.9 0.0 7.4 15.0 13.6 19.0 84.0 68.1 76.5 0.0 8.4 5.5 0.0 7.8 13.9 13.5 19.1 85.0 66.8 74.9 0.0 8.1 5.0 0.0 8.2 13.0 13.5 19.0 86.0 65.2 73.2 0.0 8.0 4.4 0.0 8.5 12.0 13.4 18.9 87.0 64.3 72.5 0.0 8.2 4.0 0.0 8.7 11.6 13.3 18.6 88.0 63.5 71.9 0.0 8.4 3.7 0.0 8.5 11.3 13.2 18.4 89.0 62.3 70.8 0.0 8.5 3.3 0.0 8.3 11.1 13.3 18.0 90.0 61.2 69.7 0.0 8.5 2.8 0.0 8.1 10.8 13.2 17.7 91.0 60.1 68.7 0.0 8.6 2.5 0.0 7.8 10.6 13.3 17.3 92.0 59.2 67.7 0.0 8.5 2.2 0.0 7.5 10.5 13.3 17.0 93.0 58.4 66.9 0.0 8.5 1.8 0.0 7.4 10.3 13.5 16.9 94.0 58.0 66.5 0.0 8.5 1.8 0.0 7.3 10.1 13.4 16.9 95.0 57.6 66.1 0.0 8.5 1.8 0.0 7.1 9.8 13.6 16.9 96.0 57.1 65.6 0.0 8.5 1.8 0.0 7.0 9.4 13.7 16.7 97.0 56.6 65.2 0.0 8.6 1.8 0.0 6.9 8.9 13.8 16.7 98.0 56.1 64.7 0.0 8.6 1.8 0.0 6.7 8.4 13.8 16.7 99.0 55.4 64.2 0.0 8.8 1.8 0.0 6.6 7.7 14.0 16.5 100.0 55.0 64.1 0.0 9.2 1.8 0.0 6.4 7.0 14.0 16.6 101.0 54.6 64.2 0.0 9.5 1.9 0.0 6.3 6.4 14.0 16.6 102.0 54.4 64.3 0.0 9.9 1.9 0.0 6.2 5.9 14.0 16.5 103.0 54.2 64.5 0.0 10.3 1.9 0.0 6.2 5.5 13.9 16.4 104.0 54.0 64.5 0.0 10.5 1.9 0.0 6.2 5.1 13.8 16.5 105.0 53.6 64.2 0.0 10.6 1.9 0.0 6.3 4.9 13.7 16.2 106.0 53.2 63.9 0.0 10.7 1.9 0.0 6.3 4.6 13.6 16.2 107.0 52.5 63.3 0.0 10.9 1.9 0.0 6.3 4.4 13.4 15.6 108.0 51.0 62.1 0.0 11.1 1.7 0.0 6.3 4.1 13.2 14.5 109.0 48.8 60.2 0.0 11.4 1.4 0.0 6.3 3.9 12.8 13.0 110.0 45.6 56.3 0.0 10.7 0.0 0.0 6.2 3.7 12.4 11.6 111.0 42.4 52.3 0.0 9.9 0.0 0.0 6.0 3.5 12.1 10.3 112.0 39.5 48.6 0.0 9.1 0.0 0.0 5.8 3.3 11.8 9.3 113.0 37.3 45.4 0.0 8.1 0.0 0.0 5.5 3.2 11.7 8.9 114.0 36.1 43.1 0.0 7.1 0.0 0.0 5.2 3.3 11.7 8.8 115.0 35.9 42.8 0.0 6.8 0.0 0.0 4.9 3.4 11.8 8.9 116.0 36.1 43.0 0.0 6.9 0.0 0.0 4.7 3.6 12.0 8.8 117.0 36.3 43.5 0.0 7.2 0.0 0.0 4.5 3.8 12.1 8.7 118.0 36.2 43.7 0.0 7.5 0.0 0.0 4.4 4.2 11.3 8.9 119.0 35.3 43.1 0.0 7.9 0.0 0.0 4.4 4.4 9.9 8.7 120.0 34.2 42.4 0.0 8.3 0.0 0.0 4.4 4.6 8.5 8.5 121.0 33.1 41.8 0.0 8.6 0.0 0.0 4.4 4.7 7.0 8.4 122.0 32.1 40.9 0.0 8.8 0.0 0.0 4.4 4.8 5.6 8.4 123.0 31.4 40.4 0.0 9.0 0.0 0.0 4.4 4.8 5.1 8.1 124.0 32.0 41.4 0.0 9.3 0.0 0.0 4.4 4.9 5.2 8.3 125.0 32.5 42.1 0.0 9.7 0.0 0.0 4.4 5.0 5.2 8.3 126.0 32.3 42.0 0.0 9.7 0.0 0.0 4.5 4.8 5.2 8.1 127.0 31.9 41.6 0.0 9.6 0.0 0.0 4.4 4.7 5.2 8.0 128.0 31.5 41.0 0.0 9.5 0.0 0.0 4.4 4.6 5.1 7.9 129.0 30.2 39.6 0.0 9.4 0.0 0.0 4.1 4.3 5.1 7.3 130.0 29.5 38.8 0.0 9.3 0.0 0.0 3.8 4.1 5.1 7.2 131.0 29.0 38.4 0.0 9.4 0.0 0.0 3.2 4.2 5.1 7.1 132.0 28.3 37.8 0.0 9.5 0.0 0.0 2.7 4.2 5.0 6.9 133.0 27.2 36.9 0.0 9.6 0.0 0.0 2.0 4.3 4.5 6.7 134.0 26.1 35.7 0.0 9.6 0.0 0.0 1.6 4.4 3.6 6.9 135.0 24.3 33.7 0.0 9.4 0.0 0.0 1.2 4.3 2.7 6.7 136.0 23.1 32.3 0.0 9.2 0.0 0.0 0.0 4.6 1.8 6.7 137.0 22.2 31.1 0.0 8.9 0.0 0.0 0.0 4.8 0.0 6.8 138.0 21.7 30.4 0.0 8.7 0.0 0.0 0.0 5.0 0.0 6.9 139.0 21.5 30.0 0.0 8.5 0.0 0.0 0.0 5.1 0.0 6.9 140.0 21.5 29.8 0.0 8.3 0.0 0.0 0.0 5.2 0.0 6.9 141.0 21.3 29.5 0.0 8.2 0.0 0.0 0.0 5.2 0.0 7.0 142.0 21.1 29.2 0.0 8.1 0.0 0.0 0.0 5.2 0.0 6.9 143.0 20.9 28.9 0.0 8.0 0.0 0.0 0.0 5.1 0.0 6.9 144.0 20.9 28.9 0.0 8.0 0.0 0.0 0.0 5.1 0.0 6.8 145.0 21.0 29.1 0.0 8.1 0.0 0.0 0.0 5.3 0.0 6.7 146.0 21.3 29.4 0.0 8.1 0.0 0.0 0.0 5.5 0.0 6.8 147.0 21.4 29.4 0.0 8.0 0.0 0.0 0.0 5.7 0.0 6.9 148.0 21.6 29.6 0.0 8.0 0.0 0.0 0.0 6.0 0.0 6.8 149.0 21.7 29.5 0.0 7.8 0.0 0.0 0.0 6.1 0.0 6.9 150.0 21.8 29.4 0.0 7.6 0.0 0.0 0.0 6.3 0.0 6.9 151.0 21.6 29.1 0.0 7.5 0.0 0.0 0.0 6.3 0.0 6.9 152.0 21.8 29.5 0.0 7.7 0.0 0.0 0.0 6.4 0.0 6.8 153.0 21.8 29.5 0.0 7.7 0.0 0.0 0.0 6.5 0.0 6.8 154.0 21.8 29.5 0.0 7.7 0.0 0.0 0.0 6.7 0.0 6.8 155.0 21.6 29.3 0.0 7.8 0.0 0.0 0.0 6.7 0.0 6.8 156.0 21.5 29.2 0.0 7.8 0.0 0.0 0.0 6.7 0.0 6.8 157.0 21.1 28.7 0.0 7.6 0.0 0.0 0.0 6.7 0.0 6.7 158.0 20.7 28.2 0.0 7.5 0.0 0.0 0.0 6.4 0.0 6.7 159.0 20.5 28.0 0.0 7.4 0.0 0.0 0.0 6.4 0.0 6.7 160.0 20.3 27.7 0.0 7.3 0.0 0.0 0.0 6.3 0.0 6.7 161.0 20.1 27.3 0.0 7.2 0.0 0.0 0.0 6.2 0.0 6.7 162.0 20.0 27.2 0.0 7.1 0.0 0.0 0.0 6.2 0.0 6.7 163.0 19.9 27.0 0.0 7.0 0.0 0.0 0.0 6.1 0.0 6.8 164.0 19.9 26.8 0.0 7.0 0.0 0.0 0.0 6.1 0.0 6.8 165.0 19.8 26.7 0.0 6.9 0.0 0.0 0.0 6.0 0.0 6.8 166.0 19.7 26.5 0.0 6.8 0.0 0.0 0.0 6.0 0.0 6.9 167.0 19.2 25.7 0.0 6.5 0.0 0.0 0.0 5.9 0.0 6.9 168.0 18.1 24.2 0.0 6.0 0.0 0.0 0.0 5.2 0.0 6.9 169.0 16.7 22.2 0.0 5.5 0.0 0.0 0.0 4.3 0.0 6.9 170.0 14.2 19.0 0.0 4.9 0.0 0.0 0.0 3.4 0.0 5.9 171.0 11.0 15.0 0.0 4.0 0.0 0.0 0.0 2.4 0.0 4.6 172.0 7.9 11.1 0.0 3.2 0.0 0.0 0.0 1.6 0.0 3.2 173.0 5.4 7.7 0.0 2.3 0.0 0.0 0.0 1.3 0.0 1.8 174.0 3.1 4.6 0.0 1.4 0.0 0.0 0.0 1.2 0.0 0.0 175.0 2.0 2.7 0.0 0.7 0.0 0.0 0.0 1.3 0.0 0.0 176.0 1.5 1.8 0.0 0.3 0.0 0.0 0.0 1.2 0.0 0.0 177.0 1.3 1.4 0.0 0.1 0.0 0.0 0.0 1.3 0.0 0.0 178.0 1.1 1.1 0.0 0.0 0.0 0.0 0.0 1.1 0.0 0.0 179.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 180.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0