Event label Optional label Method/Device Abbreviation O2A Registry URI Date/Time Latitude Longitude Elevation Date/Time end Latitude end Longitude end Elevation end Comment M41/2-track Underway cruise track measurements CT 1998-03-18T00:00:00 0.39850 9.43610 1998-04-15T00:00:00 -20.30750 -40.25460 Libreville - Vitoria GeoB5001-2 Bottle, Niskin NIS 1998-03-20T00:00:00 -2.03667 1.15333 -4600 Samples at water depth 200m, 150,50,20,10 GeoB5001-1 CTD/Rosette CTD-RO 1998-03-20T00:00:00 -2.03833 1.15167 -4593 CTD data for calibration of Hydrosweep GeoB5002-4 Bottle, Niskin NIS 1998-03-27T00:00:00 -8.14667 -14.53333 -2846 water samples from 200,150, 90, 50, 20, 10m depth GeoB5002-1a CTD/Rosette CTD-RO 1998-03-27T10:15:00 -8.14333 -14.54167 -2851 GeoB5002-1 MultiCorer MUC 1998-03-27T10:15:00 -8.14333 -14.54167 -2851 8 big, 4 small tubes filled, 27cm GeoB5002-2 Gravity corer (Kiel type) SL 1998-03-27T10:57:00 -8.14333 -14.54167 -2851 Tube bended, no core recovery GeoB5002-3 Gravity corer (Kiel type) SL 1998-03-27T13:52:00 -8.14333 -14.54167 -2849 5.60m core recovery GeoB5003-1 Gravity corer (Kiel type) SL 1998-03-27T19:37:00 -7.80167 -14.19667 -2884 no core recovery GeoB5004-1 MultiCorer MUC 1998-04-01T23:23:00 -9.16667 -13.34167 -2791 no core recovery GeoB5004-1a CTD/Rosette CTD-RO 1998-04-01T23:23:00 -9.16667 -13.34167 -2791 GeoB5004-2 MultiCorer MUC 1998-04-02T01:23:00 -9.16667 -13.34000 -2790 6 big, 4 small tubes filled, 10cm GeoB5004-2a CTD/Rosette CTD-RO 1998-04-02T01:23:00 -9.16667 -13.34000 -2790 GeoB5004-3 Gravity corer (Kiel type) SL 1998-04-02T03:05:00 -9.16667 -13.34000 -2789 Tube bended, core recovery 67cm GeoB5005-1 Dredge, frame DRG_F 1998-04-03T00:00:00 -9.72833 -12.82833 Corals GeoB5006-1 MultiCorer MUC 1998-04-04T18:27:00 -9.76000 -12.36833 -3244 7 big, 4 small tubes filled 30cm, 1 big tube 10cm GeoB5006-1a CTD/Rosette CTD-RO 1998-04-04T18:27:00 -9.76000 -12.36833 -3244 GeoB5006-2 Gravity corer (Kiel type) SL 1998-04-04T20:20:00 -9.76000 -12.36833 -3244 core recovery 5.71m GeoB5007-1 MultiCorer MUC 1998-04-08T20:42:00 -12.39333 -13.93833 -3668 5 big, 3 small tubes filled to 8 - 10cm GeoB5007-1a CTD/Rosette CTD-RO 1998-04-08T20:42:00 -12.39333 -13.93833 -3668 GeoB5007-2 Gravity corer (Kiel type) SL 1998-04-08T22:54:00 -12.39333 -13.93833 -3668 core recovery 9.34m GeoB5008-1 Bottle, Niskin NIS 1998-04-09T00:00:00 -12.93000 -15.68500 -3405 water samples from 200,150, 100, 50, 20m GeoB5008-2 Gravity corer (Kiel type) SL 1998-04-09T12:18:00 -12.93000 -15.68500 -3405 Tube bended, core recovery 3.73m GeoB5008-3a CTD/Rosette CTD-RO 1998-04-09T14:40:00 -12.93000 -15.68500 -3407 GeoB5008-3 MultiCorer MUC 1998-04-09T14:40:00 -12.93000 -15.68500 -3407 8 big and 4 small tubes, 20-24cm M41/2_159 Dredge DRG -8.90930 -13.46780 -1899 -8.91280 -13.45770 -1951 Mid Atlantic Ridge, south of Ascension Fracture Zone, segment A2 M41/2_160 Dredge DRG -8.96750 -13.46030 -2166 -8.97420 -13.45130 -2080 Mid Atlantic Ridge, south of Ascension Fracture Zone, segment A2 M41/2_161 Dredge DRG -9.01250 -13.45670 -2232 -9.01730 -13.44970 -2258 Mid Atlantic Ridge, south of Ascension Fracture Zone, segment A2 M41/2_162 Dredge DRG -9.08000 -13.44520 -2460 -9.08320 -13.43730 -2369 Mid Atlantic Ridge, south of Ascension Fracture Zone, segment A2 M41/2_163 Dredge DRG -9.19600 -13.44220 -2398 -9.21930 -13.43650 -2547 Mid Atlantic Ridge, south of Ascension Fracture Zone, segment A2 M41/2_164 Dredge DRG -9.24420 -13.42120 -2622 -9.25100 -13.41020 -2616 Mid Atlantic Ridge, south of Ascension Fracture Zone, segment A2 M41/2_166 Dredge DRG -9.23000 -13.31600 -2299 -9.24150 -13.30420 -2352 Mid Atlantic Ridge, south of Ascension Fracture Zone, segment A3 M41/2_167 Dredge DRG -9.26450 -13.30030 -2107 -9.27170 -13.29770 -2075 Mid Atlantic Ridge, south of Ascension Fracture Zone, segment A3 M41/2_169 Dredge DRG -9.34180 -13.25200 -1958 -9.34500 -13.24750 -1920 Mid Atlantic Ridge, south of Ascension Fracture Zone, segment A3 M41/2_170 Dredge DRG -9.43350 -13.23550 -1805 -9.44070 -13.22820 -1789 Mid Atlantic Ridge, south of Ascension Fracture Zone, segment A3 M41/2_171 Dredge DRG -9.48270 -13.23320 -1652 -9.48830 -13.22630 -1620 Mid Atlantic Ridge, south of Ascension Fracture Zone, segment A3 M41/2_172 Dredge DRG -9.55980 -13.21030 -1488 -9.55900 -13.20550 -1497 Mid Atlantic Ridge, south of Ascension Fracture Zone, segment A3 M41/2_173 Dredge DRG -9.63650 -13.19150 -1477 -9.63950 -13.18570 -1512 Mid Atlantic Ridge, south of Ascension Fracture Zone, segment A3 M41/2_174 Dredge DRG -9.70400 -13.15730 -1539 -9.71070 -13.14850 -1521 Mid Atlantic Ridge, south of Ascension Fracture Zone, segment A3 M41/2_188 Dredge DRG -9.77200 -13.16170 -1603 -9.77500 -13.15470 -1667 Mid Atlantic Ridge, south of Ascension Fracture Zone, segment A3 M41/2_189 Dredge DRG -9.83780 -13.08720 -1945 -9.84030 -13.11850 -1960 Mid Atlantic Ridge, south of Ascension Fracture Zone, segment A3 M41/2_190 Dredge DRG -9.88650 -13.08720 -2052 -9.88720 -13.08220 -2002 Mid Atlantic Ridge, south of Ascension Fracture Zone, segment A3 M41/2_191 Dredge DRG -9.94830 -13.06680 -2188 -9.95320 -13.05780 -2190 Mid Atlantic Ridge, south of Ascension Fracture Zone, segment A3 M41/2_194 Dredge DRG -10.07100 -13.19800 -2953 -10.07630 -13.18770 -2943 Mid Atlantic Ridge, south of Ascension Fracture Zone, segment A4 M41/2_196 Dredge DRG -10.23070 -13.18850 -3241 -10.23550 -13.17730 -3598 Mid Atlantic Ridge, south of Ascension Fracture Zone, segment A4 M41/2_197 Dredge DRG -10.28880 -13.18000 -3100 -10.29220 -13.16880 -3421 Mid Atlantic Ridge, south of Ascension Fracture Zone, segment A4 M41/2_198 Dredge DRG -10.38150 -13.17830 -3500 -10.38450 -13.17780 -3569 Mid Atlantic Ridge, south of Ascension Fracture Zone, segment A4 M41/2_199 Dredge DRG -10.48350 -13.16980 -3528 -10.48470 -13.15850 -3347 Mid Atlantic Ridge, south of Ascension Fracture Zone, segment A4 M41/2_200 Dredge DRG -10.60870 -13.09220 -3791 -10.61430 -13.08550 -3772 Mid Atlantic Ridge, south of Ascension Fracture Zone, segment A4 M41/2_201 Dredge DRG -10.68350 -13.07450 -3712 -10.69530 -13.05170 -3500 Mid Atlantic Ridge, south of Ascension Fracture Zone, segment A4 M41/2_202 Dredge DRG -10.78180 -13.05050 -3463 -10.79300 -13.04630 -3466 Mid Atlantic Ridge, south of Ascension Fracture Zone, segment A4 M41/2_203 Dredge DRG -10.88230 -13.03770 -3639 -10.88780 -13.02180 -3643 Mid Atlantic Ridge, south of Ascension Fracture Zone, segment A4 M41/2_195 Dredge DRG -10.13150 -13.19730 -3091 -10.13300 -13.19180 -3067 Mid Atlantic Ridge, south of Ascension Fracture Zone, segment A4 M41/2_132 Dredge DRG -7.66580 -13.45600 -3925 -7.67450 -13.45080 -3991 Mid Atlantic Ridge, south of Ascension Fracture Zone, segment A1 M41/2_133 Dredge DRG -7.71800 -13.44400 -3980 -7.72600 -13.42420 -3809 Mid Atlantic Ridge, south of Ascension Fracture Zone, segment A1 M41/2_136 Dredge DRG -7.77250 -13.43150 -3727 -7.77420 -13.43520 -3719 Mid Atlantic Ridge, south of Ascension Fracture Zone, segment A1 M41/2_137 Dredge DRG -7.82020 -13.42720 -3405 -7.81870 -13.42270 -3420 Mid Atlantic Ridge, south of Ascension Fracture Zone, segment A1 M41/2_138 Dredge DRG -7.86720 -13.43050 -3451 -7.87280 -13.42100 -3264 Mid Atlantic Ridge, south of Ascension Fracture Zone, segment A1 M41/2_139 Dredge DRG -7.91880 -13.41050 -3631 -7.93250 -13.40180 -3680 Mid Atlantic Ridge, south of Ascension Fracture Zone, segment A1 M41/2_140 Dredge DRG -7.96500 -13.39880 -3670 -7.96570 -13.39430 -3482 Mid Atlantic Ridge, south of Ascension Fracture Zone, segment A1 M41/2_141 Dredge DRG -7.98570 -13.43050 -3364 -7.98580 -13.42670 -3346 Mid Atlantic Ridge, south of Ascension Fracture Zone, segment A1 M41/2_142 Dredge DRG -8.01870 -13.43000 -3576 -8.02180 -13.41850 -3377 Mid Atlantic Ridge, south of Ascension Fracture Zone, segment A1 M41/2_143 Dredge DRG -8.05480 -13.41720 -3457 -8.05550 -13.40900 -3468 Mid Atlantic Ridge, south of Ascension Fracture Zone, segment A1 M41/2_144 Dredge DRG -8.08950 -13.45280 -3522 -8.09230 -13.44350 -3653 Mid Atlantic Ridge, south of Ascension Fracture Zone, segment A1 M41/2_145 Dredge DRG -8.12480 -13.41050 -3470 -8.13220 -13.44780 -3251 Mid Atlantic Ridge, south of Ascension Fracture Zone, segment A1 M41/2_146 Dredge DRG -8.16670 -13.44550 -3401 -8.16680 -13.44500 -3292 Mid Atlantic Ridge, south of Ascension Fracture Zone, segment A1 M41/2_147 Dredge DRG -8.31350 -13.60650 -3055 -8.32520 -13.60950 -2825 Mid Atlantic Ridge, south of Ascension Fracture Zone, segment A2 M41/2_148 Dredge DRG -8.34450 -13.60000 -2959 -8.34670 -13.58750 -2778 Mid Atlantic Ridge, south of Ascension Fracture Zone, segment A2 M41/2_149 Dredge DRG -8.37420 -13.61620 -3063 -8.37730 -13.59830 -2902 Mid Atlantic Ridge, south of Ascension Fracture Zone, segment A2 M41/2_151 Dredge DRG -8.45120 -13.58980 -2811 -8.45670 -13.57930 -2733 Mid Atlantic Ridge, south of Ascension Fracture Zone, segment A2 M41/2_152 Dredge DRG -8.50820 -13.56400 -2693 -8.51200 -13.55980 -2515 Mid Atlantic Ridge, south of Ascension Fracture Zone, segment A2 M41/2_153 Dredge DRG -8.55488 -13.55030 -2552 -8.56630 -13.55700 -2642 Mid Atlantic Ridge, south of Ascension Fracture Zone, segment A2 M41/2_154 Dredge DRG -8.60780 -13.53470 -2523 -8.61180 -13.53270 -2447 Mid Atlantic Ridge, south of Ascension Fracture Zone, segment A2 M41/2_155 Dredge DRG -8.69330 -13.54320 -2380 -8.69630 -13.52950 -2374 Mid Atlantic Ridge, south of Ascension Fracture Zone, segment A2 M41/2_156 Dredge DRG -8.74930 -13.50300 -2257 -8.75020 -13.49670 -2255 Mid Atlantic Ridge, south of Ascension Fracture Zone, segment A2 M41/2_157 Dredge DRG -8.80770 -13.49620 -2212 -8.81300 -13.49020 -2079 Mid Atlantic Ridge, south of Ascension Fracture Zone, segment A2 M41/2_158 Dredge DRG -8.83780 -13.49530 -2139 -8.85980 -13.48330 -2086 Mid Atlantic Ridge, south of Ascension Fracture Zone, segment A2