Figure 4. Lake near western Greenland Ice Sheet margin in 1964 and 1985. The photographs illustrate how some lakes can receive glacier rock flour during the maximum phase of a glacier advance. In this case, the image from 1964 captures the lake when the ice margin was still nearby, and the lake shows a gray color from the suspended rock flour in the water column. By 1985, the ice margin had receded such that rock flour no longer is transported to the lake, hence its darker tone. Location can be seen in Google Earth at 69° 14'N, 50° W.
Image 37879 is a 272 by 275 pixel WebP
Uploaded:
Nov30 12
