The rim and inner wall of Numerov has undergone considerable erosion, and much of the eastern side is pock-marked by small craterlets.

Since 1990 considerable erosion has damaged the mound, after portions of it were removed to build a dam across a nearby bayou.

"The wave action has caused considerable erosion," Mr. Douglas said, both to the shoreline and to the city's public boat launch, which is in the park.

It's a wall that despite considerable erosion is maintained by parties on both sides.

But there has been a "considerable erosion" of the privilege in recent years, according to Professor Stone.

Despite the considerable erosion, it was possible to estimate the original diameter to have been 2.7 to 3 km, assuming the impact hypothesis is correct.

The country to the north and east of the Warner Valley is a high volcanic plateau that has undergone considerable erosion.

However, this is only a relic of the original crater after considerable erosion.

Immediately after the 1939-45 war considerable erosion started on the Sussex coast between Worthing and Littlehampton, due probably to the decay of the groyne system.

Apparently there has been considerable erosion of the funny bone.