Itinerary

Thursday 6th November to Wednesday 12th- waiting at Christchurch for weather to clear.

Wednesday 12th- Arrived at Scott Base.

Thursday 13th- Following the arrival of Jack Hoffman proceeded in Haaglund to Butter Point.

Friday 14th- Unpacking and testing gear at CIROS-1 drill site.

Saturday 15th- Preparation for velocity logging of hole. Started well-shoot at midnight manually lowering the cable the first 200 metres.

Sunday 16th- After shooting several levels the cable was retrieved to chock the cause of noise. After deciding the noise was unavoidable lowered cable and started logging again. Logging was abandoned mid-afternoon after encountering a cave-in of the hole 318 metres sub-seafloor.

Monday 17th- was spent resting.

Tuesday 18th- Testing the Bolt 1900 airgun. Some problems with seals necessitated stripping and reassembly of the Bolt airgun in a heated laboratory before it would fire.

Wednesday 19th- Geophone spread laid out and ice auger set up at first shot point in preparation for overnight survey. Abandoned when Haaglund does not arrive.

Thursday 20th- Haaglund only available for four hours during which one hole was shot with explosive and airgun on a line towards MSSTS-1 drill hole.

Friday 21st- The Haaglund, scheduled for 10 a.m. arrival and survey, postponed to Saturday morning. A third string of geophones was laid out to facilitate surveying on Saturday.

Saturday 22nd- Haaglund being repaired, arrival postponed.

Surveying started using the Toyota HiLux and Ford pickup truck. 12 holes shot.

Sunday 23rd- Haaglund being repaired, arrival postponed.

Drilled 4 holes and laid out next geophone spreads. Toyota HiLux and Tait radios required in the afternoon for Butter Point relocation survey.

Monday 24th- Haaglund being repaired, arrival postponed.

18 holes shot.

Tuesday 25th- Haaglund being repaired, arrival postponed.

Informed it was unlikely to turn up at all. Request manpower assistance for airgun work to arrive on the next cargo train. Three holes were shot before the VUW Nimbus fails. All subsequent holes now needed to be double-shot. As the line was now amongst rough ice it was decided to move to the second line at right angles, heading landward towards Butter Point from the CIROS-1 drill site.

Wednesday 26th- 10.5 more holes are drilled and shot exhausting the detonator supply.

Thursday 27th- Arrival of two assistants from Scott Base means airguns can be tested as sound source. The whole day is spent unsuccessfully trying to get either airgun operating. Only subsequent to heating up at Butter Point was the VUW free-running page 22 airgun fired in the evening. Even then it was not operating as expected.

Friday 28th- Surveying resumed using VUW airgun and a jury-rigged air supply arrangement. Air consumption per shot deteriorated during the morning such that eventually about one hour was spent charging air tanks prior to shooting each hole. Pour holes were shot twice with 6 or 12 fold stacked firings of the airgun. Surveying was discontinued at 1.30 p.m. Equipment was loaded on sledges and towed to Scott Base by the D4 bulldozer overnight.

Tuesday 2nd December- The party returned to New Zealand.