Event List of Sub-EIS-Obs2017/2018
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| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| EIS-1 | 20170553 | Hot Water Drill | HWD | 2017-12-29T20:00:00 | -70.63676 | -8.25373 | 38 | Ice shelf thickness 180 m, Hot Water drilling failed at about 160 m. 0 (not clear is drill penetrated full depth, likely thickness is the same as the second site)., Elevation2 = Ice surface to sea floor depth = robe length [m] | |||||
| EIS-2a | 20170553 | Grab | GRAB | 2018-01-03T13:30:00 | -70.63529 | -8.25043 | 35 | 285 | Ice shelf thickness 192 m, HWD sucessful; logging started at 12am immediately after hole was completed. This is a surface bulk sample, Elevation2 = Ice surface to sea floor depth = robe length [m] | ||||
| EIS-2b | 20170553 | Gravity corer | GC | 2018-01-03T15:00:00 | -70.63529 | -8.25043 | 35 | 285 | Ice shelf thickness 192 m, undisturbed intact surface, Elevation2 = Ice surface to sea floor depth = robe length [m] | ||||
| EIS-2c | 20170553 | Gravity corer | GC | 2018-01-03T15:45:00 | -70.63529 | -8.25043 | 35 | 285 | Ice shelf thickness 192 m, Liner broken probably due to hard material on ground, Elevation2 = Ice surface to sea floor depth = robe length [m] | ||||
| EIS-2d | 20170553 | Ice hole percussion corer, UWITEC | IPUWI | 2018-01-03T18:00:00 | -70.63529 | -8.25043 | 35 | 285 | Ice shelf thickness 192 m, Device operated from good position on sledge above hole-drill bit hurt significantly due to hard rocks on ground this is why core lost, Elevation2 = Ice surface to sea floor depth = robe length [m] | ||||
| EIS-2e | 20170553 | Ice hole percussion corer, UWITEC | IPUWI | 2018-01-03T22:00:00 | -70.63529 | -8.25043 | 35 | 285 | Ice shelf thickness 192 m, Corer got stuck in almost consolidated sediment and was hard to get out. 2 segments because core catcher sampled separately and stored in 8cm plastic tube., Elevation2 = Ice surface to sea floor depth = robe length [m] | ||||
| EIS-2f | 20170553 | Ice hole percussion corer, UWITEC | IPUWI | 2018-01-04T00:05:00 | -70.63529 | -8.25043 | 35 | 285 | Ice shelf thickness 192 m, penetration stopped because of hard rocks in sediment, Elevation2 = Ice surface to sea floor depth = robe length [m] | ||||
| EIS-2g | 20170553 | Ice hole percussion corer, UWITEC | IPUWI | 2018-01-04T02:30:00 | -70.63529 | -8.25043 | 35 | 285 | Ice shelf thickness 192 m, surface disturbed and stone recovered at the bottom of core stored in tube and corer was almost stuck at ice water interface indicating freezing ice hole therefore decision to stop coring at 3am, Elevation2 = Ice surface to sea floor depth = robe length [m] | ||||
| EIS-3a | 20170553 | Grab | GRAB | 2018-01-08T03:30:00 | -70.76785 | -7.90090 | 35 | 335 | Ice shelf thickness 190 m, HWD sucessful; logging started at 3am immediately after hole was completed; grabber was filled with ice, perhaps released too early due to irregular ice hole? small sample at tip of the grabber. Surface sample, Elevation2 = Ice surface to sea floor depth = robe length [m] | ||||
| EIS-3b | 20170553 | Gravity corer | GC | 2018-01-08T04:30:00 | -70.76785 | -7.90090 | 35 | 335 | Ice shelf thickness 190 m, probably already released in ice hole, Elevation2 = Ice surface to sea floor depth = robe length [m] | ||||
| EIS-3c | 20170553 | Gravity corer | GC | 2018-01-08T05:20:00 | -70.76785 | -7.90090 | 35 | 335 | Ice shelf thickness 190 m, short core of surface material, Elevation2 = Ice surface to sea floor depth = robe length [m] | ||||
| EIS-3 | 20170553 | Vibro corer | VC | 2018-01-08T08:00:00 | -70.76785 | -7.90090 | 35 | 335 | Ice shelf thickness 190 m, first attempt stopped due to doubts regarding the strength of the motor, Elevation2 = Ice surface to sea floor depth = robe length [m] | ||||
| EIS-3d | 20170553 | Ice hole percussion corer, UWITEC | IPUWI | 2018-01-08T09:00:00 | -70.76785 | -7.90090 | 35 | 335 | Ice shelf thickness 190 m, mixed surface sample recovered in 3m-liner, including some rock fragments, Elevation2 = Ice surface to sea floor depth = robe length [m] | ||||
| EIS-3e | 20170553 | Ice hole percussion corer, UWITEC | IPUWI | 2018-01-08T10:00:00 | -70.76785 | -7.90090 | 35 | 335 | Ice shelf thickness 190 m, mixed surface sample even though a falling depth of 55m above sediment, sample contains many rock fragments, Elevation2 = Ice surface to sea floor depth = robe length [m] | ||||
| EIS-3f | 20170553 | Gravity corer | GC | 2018-01-08T12:00:00 | -70.76785 | -7.90090 | 35 | 335 | Ice shelf thickness 190 m, mixed surface sample, silty-clayay matrix with rock fragments of different type and size; 2 subsamples: 1 core of 6,5 cm and 1 sample in an Kautex bottle from outside the line. 1 core and surface sample, Elevation2 = Ice surface to sea floor depth = robe length [m] | ||||
| EIS-3g | 20170553 | Vibro corer | VC | 2018-01-08T14:00:00 | -70.76785 | -7.90090 | 35 | 335 | Ice shelf thickness 190 m, mixed surface sample, silty-clayay matrix with numerous rock fragments of different type and size; about 30-50 cm penetration of upper part, Elevation2 = Ice surface to sea floor depth = robe length [m] | ||||
| EIS-3h | 20170553 | Vibro corer | VC | 2018-01-08T16:30:00 | -70.76785 | -7.90090 | 35 | 335 | Ice shelf thickness 190 m, no penetration into surface; small sediment sample at tip of drill bit; seafloor fauna recovered, Elevation2 = Ice surface to sea floor depth = robe length [m] | ||||
| EIS-3i | 20170553 | Gravity corer | GC | 2018-01-08T17:30:00 | -70.76785 | -7.90090 | 35 | 335 | Ice shelf thickness 190 m, not released, Elevation2 = Ice surface to sea floor depth = robe length [m] | ||||
| EIS-3j | 20170553 | Gravity corer | GC | 2018-01-08T18:30:00 | -70.76785 | -7.90090 | 35 | 335 | Ice shelf thickness 190 m, not released and broken liner; stop coring at 9pm, Elevation2 = Ice surface to sea floor depth = robe length [m] |