Floor Of A Impact Crater

Lroc wac image of tycho crater.

Floor of a impact crater.

3000 2800 bce meteorite impact event possibly resulting from a comet. The proposed constellation site is to the north of the. From a distance the arizona meteor crater looks like nothing more than a low ridge. The central cavity is initially bowl shaped the word crater comes from the greek word for bowl but the rebound of the crust partially fills it in producing a flat floor and sometimes creating a central peak.

It is not until one climbs the slope and reaches the top of the rim that the great chasm is revealed. An impact crater is an approximately circular depression in the surface of a planet moon or other solid body in the solar system or elsewhere formed by the hypervelocity impact of a smaller body. In the image below impact melt flowed downhill and pooled where it cooled. Due to the cratering process itself and due to postimpact modification.

This image is viewable in 3d using red blue glasses. Such postimpact modification can include regolith transported down the crater walls and onto the floor infilling by aeolian or lacustrine material or infilling by lava unrelated to the impact process e g plato flooding of the crater by lavas e g schultz 1976a. The shape and depth of the bay contrast sharply with other lakes in the area. In contrast to volcanic craters which result from explosion or internal collapse impact craters typically have raised rims and floors that are lower in elevation than the surrounding terrain.

An impact explosion of the sort described above leads to a characteristic kind of crater as shown in figure 3. The floor of the crater is covered in impact melt rocks that were heated to such high temperatures during the impact event that they turned to liquid and flowed across the floor. Flat floored craters occur for two reasons. Local indian legend has a taboo on fishing in the bay presumably due to its unusual appearance and depth.

For a very long time immediately after the impact the crater was a lake. The crater is defined by a 220 m deep circular bay in a lake which elsewhere averages only 50 m in depth. There are 90 feet 27 m of lake deposits on the floor of the crater today. Burckle crater is an undersea feature about 29 kilometres 18 mi in diameter in the southwestern indian ocean.

Rather the crater still showed distinct ripples structures that radiated from the center of the bomb blast like if somebody dropped a very large pebble onto the sea bed trembanis said. The holocene impact working group hiwg propose that it was formed by a very large scale and relatively recent c. Intrusive volcanic activity likely caused the floor of the crater to lift up and then fracture.