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Images, UC QuakeStudies

A 'sand volcano' of liquefaction silt in Bexley. The photographer comments, "Liquefaction is just a mixture of sand and water squeezed up from the ground, but with a little imagination it has a beauty in its untouched state".

Images, UC QuakeStudies

A box containing drilling cores from soil sampling. The photographer comments, "These are the samples from drilling near my home. As you can see they are not so much samples as sand piles. The drill in a nearby street went down 20m and it was sand all the way. This is the box of samples from the ground level to 4.6m deep".

Images, UC QuakeStudies

A large pile of liquefaction silt in Parklands has been topped with a Christmas star. The photographer comments, "Not exactly the kind of sand castle you want to build on your Summer holidays. This is the biggest of several piles of liquefaction in just one street in Parklands/Queenspark".

Images, UC QuakeStudies

A 'sand volcano' of liquefaction silt. The photograph has been rotated 180 degrees. The photographer comments, "This could be just a horrible hole caused by liquefaction pouring out of a hole after the Christchurch earthquake in January, but turn it upside down and it becomes an outcrop on the floor of an unseen tidal estuary".

Images, UC QuakeStudies

A large chess board made from sand and broken shells, with a painted beach scene on the wall behind. The photographer comments, "After all the suggestions put on the wall on what to do in this area, which was once an earthquake damaged shop, they have made the chess board, painted a seaside scene on the wall and created a small wall of tyres".

Images, UC QuakeStudies

A digitally manipulated image of printer's type, spelling out "Safe Dust". The photographer comments, "After the September 2010 Christchurch earthquake liquefaction poured out of the ground mostly in the East of Christchurch. This silt, which was a form of sand was declared safe and would not harm gardens if it was spread around in moderation. After the February 2011 quake as a result of even more liquefaction and the sewers being ruptured, the liquefaction was declared as toxic. People clearing it up should wear a mask, boots and gloves especially when it had dried up and become dusty. This just so happens to be the words found on an old printing press".

Images, UC QuakeStudies

Workers operate a drilling rig, sampling soil as part of EQC's geotechnical investigation of TC3 land. The photographer comments, "The work of getting 'soil' samples from all the areas marked as green/blue zones in Christchurch. These areas may be susceptible to liquefaction if a major earthquake occurs. The soil samples were a failure as all they found was sand".

Images, UC QuakeStudies

Dried liquefaction silt in North New Brighton. The photographer comments, "I found this face amongst the liquefaction. It is like one of them diagrams where they segment different parts of the brain depending on their functions".

Images, UC QuakeStudies

Dried liquefaction silt in North New Brighton. The photographer comments, "This is the result of liquefaction which spewed out after the double earthquake in Christchurch. Having flowed into a shallow depression that was deep enough for a fair quantity of the silty liquid to settle and separate: the heavy sand below and a talcum powder like substance on top. Some of these are so delicate that a mouse crossing them would probably crack them. Here the sun has dried them out and they have contracted and curled up towards their centres".

Images, UC QuakeStudies

Liquefaction silt. The photographer comments, "After the earthquake in Christchurch New Zealand, liquefaction covered the streets, but after it had risen from below ground whilst the ground was shaking it the liquid in the liquefaction wanted to drain away".

Images, UC QuakeStudies

Dried liquefaction silt in North New Brighton. The photographer comments, "Here you can see the very fine surface layer of liquefaction starting to shrink, crack and then curl up on itself".

Images, UC QuakeStudies

A pile of liquefaction silt in Parklands has been decorated with a Santa hat, Christmas decorations and a pair of jandals to form a silt 'snowman'. The photographer comments, "Not the most welcome Santa to find on your doorstep on Xmas Eve. This was made out of damp liquefaction in Parklands".

Images, UC QuakeStudies

Dried liquefaction in North New Brighton. The photographer comments, "This shape formed as the liquefaction after the 23 December earthquake in Christchurch started to dry out".

Images, UC QuakeStudies

Dried liquefaction silt in North New Brighton. The photographer comments, "The day before this was liquefaction pouring out of the ground, but within a day it has dried up and will soon turn into a gritty dust".