| 31. | It also contains gypsum and geothite, and was crushed to simulate the martian regolith.
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| 32. | The column of regolith in the drill tube was then transferred to the soil sample container.
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| 33. | The regolith is the zone through which aquifers are recharged and through which aquifer discharge occurs.
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| 34. | Some badlands have no regolith layer whatsoever, capping instead in bare rock such as sandstone.
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| 35. | Raw lunar regolith would be refined by a variety of techniques, primarily hydrofluoric acid leaching.
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| 36. | There are two profound differences in the chemistry of lunar regolith and soil from terrestrial materials.
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| 37. | A huge debris flow descended Humphrys Rivulet, stripping the upstream parts of trees and regolith.
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| 38. | The pitted appearance of some grooves may suggest that the surface is covered by a regolith.
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| 39. | The element that most limited the growth rate was chlorine, needed to process regolith for aluminium.
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| 40. | Because of this process, older regolith appears more red in color compared to freshly exposed material.
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