Simple craters are 10 miles in diameter or less.
Flat floored crater.
In diameter located about 40 miles southwest of the crater lalande is a good example of a simple crater.
Flat floored craters occur in complex craters or highly degraded or modified simple craters.
The flat portion of the floor may occur at the crater center or occur as an annulus around a central uplift synonymsflat floored impact craterdescriptionimpact craters can have a variable floor.
One variant of the floor morphology is a relatively flat more or less level floor.
They start with rounded floors then progress to a flat floor resulting from a cascade of boulders that have rolled down the interior walls and settled at the bottom.
Partially surrounding the bay is a ridge up to 100 m above the lake with a maximum diameter of 13 km which probably represents the outer rim of the crater.
Other examples of such craters are doh and bran.
Flat floored craters occur in complex craters or highly degraded or modified simple craters.
Such flat floors extend across the entire reach of the crater bottom or can be interrupted at the center by a central peak or peak ring.
Lalande a only 8 mi.
The deep bay flat floored crater is a nearly circular lake near the south end of reindeer lake.
This is the main reason why it is called a flat floored or anomalous dome crater.