Geological Survey, told NASA that the stripes resemble a pattern in sedimentary rocks known as layer cake geology.
In accordance with the image above, this sort of sedimentary layering would stand out more in winter, when white snow rests on the flatter areas, making them appear even lighter.The pattern fades as it approaches the river, where sediment gathers into more uniform piles along the banks after millions of years of erosion, Crafford added.
This explanation seems to fit well, according to NASA.