Sentences with phrase «glacial ice loaded»
Unlike space probes, which pass through sterile space, ice drills must pass through thousands of feet of glacial ice loaded with microbes before they reach their target; therefore a microbial buildup on equipment and drilling fluids is «inevitable.»
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During the last glacial maximum, Wiens explained, the weight of the ice bent the Earth's crust, forcing the plastic rock in the upper layer of the Earth's mantle to flow away from the loaded region.
At the last glacial maximum (20,000 yrs ago), forcings by ice sheets, vegetation, greenhouse gases and dust loading are estimated to be around -7 W / m2, and that sustained a climate 5 to 6 degrees cooler than present.
The load of ice in the area during the last glacial maximum would have added significant pressure to the crust below.
Post-glacial rebound - The vertical movement of the land and sea floor following the reduction of the load of an ice mass, for example, since the Last Glacial Maximum (21 ka).