Müller Ice Cap Daily Report Monday May 12

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 Daily Report for 12 May 2025

 An exciting day here in our camp at the Müller Ice Cap. First of all the first samples were collected in the firn-gas tent: in-situ measurements of mercury, CO2 and CH4 and 5 cannisters were filled with air for analyses at home.  Hence, now we hope for many more samples taken at gradually increasing depths in the coming days. In the main core drill tent there was also lots of excitement, during the first half of the day, due to the ever-increasing likelihood of us hitting bedrock.

Unfortunately, a different kind of excitement could be felt in the tent, as it was increasingly difficult to break the core! After a difficult core break, the filter was deployed in the bore hole, coming up 1/3 full. Drilling was resumed, yet core breaking remained difficult for the next two runs. Thus, filtering continued until the end the late shift, and a top up of estisol in the borehole.

 

What we have done today:

- Drilling main core, drilled 9 runs from 557.66m to 573.91m (16.25m).

- Logged and O18 sampled bags from bag 558 to 573.

- Filtered main bore hole twice.

- Started drilling of shallow core for firn-gas sampling, current depth: 5m. 

- Made first firn-gas sample.

 

We are 13 in camp (Alison, Etienne, Iben, Rebecca, Fei, Richard, Nicholas, Tessa, Nerilie, Anais, Jamie, Julien and Bo)

 

Alison Criscitiello and Bo Vinther.

 

Wx at Müller: Sunny day. Wind between 2 and 5 kn from between 270 deg true 300 deg true, temperatures between -24 and -10 deg C.

 

Caption: Fei, Jamie and Anais started the firn-gas sampling today – first sample is for mercury analysis. 


Caption: After Richard has carried out the logging of the latest section of the main core, he crosses out the bedrock bets, that we know have not won. We are all hoping to find a winner sooner rather than later!  


Caption: Outhouse maintenance is important and has to be done on a regular basis. Bo and Julien are happy - after the job is done and the toilet tent is back in working condition



 

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