Rapid thawing and refreezing, in turn, can heave the soil, uprooting perennials or even unearthing bulbs that you worked so hard to plant in fall.
32.
In other cases, black ice formed, as the snow fell on ground that was nearly frozen, which allowed the crystals to melt briefly before refreezing.
33.
"There's the possibility that ice and snow on Mars melted from time to time, forming those gullies and then refreezing again ."
34.
Travel over much of Britain was badly affected by ice and snow on roads, and was made more slippery by partial daytime thaw followed by overnight refreezing.
35.
Some New Englander's call it the crust moon, since days of thawing and refreezing cause a crust on the snow that skiers know only too well.
36.
The ice pattern is caused by repeated cycles of freezing, fracturing, and refreezing of the ice due to variations in temperature and wind-induced ice motion.
37.
De-icing chemicals accelerate the thawing and refreezing cycle and can speed up the concrete's demise, but it's hard to get around using them.
38.
In addition, by insulating the soil a blanket of mulch protects planted areas from the cycle of thawing and refreezing that otherwise accompanies any break in the winter weather.
39.
Temperatures near the freezing point also tend to cause jumble ice, as the higher temperatures weaken the ice structure, allowing for more pieces to be torn free before refreezing.
40.
New Zealand Antarctic program director Gillian Wratt said there was too little time for refreezing to produce an ice shelf " of the consistency and thickness for safe operations ."
