What is a terraced crater?

When an object impacts into layered material, it can form a crater with terraces in the crater’s walls at the layer boundaries, rather than the simple bowl-shape that is expected.

What is a terrace on the Moon?

Terrace of the Moon. The Terrace of the Moon is a large section of the Tomb of Sargeras, being the halls of the Sisterhood of Elune. The Sisters of the Moon are fought here on a platform called the Font of Elune.

How is a terraced crater formed?

Walls – The interior sides of a crater, usually steep. They may have giant stair-like terraces that are created by slumping of the walls due to gravity. Rim – The edge of the crater. It is elevated above the surrounding terrain because it is composed of material pushed up at the edge during excavation.

What is the crater on the Moon called?

Lunar craters are impact craters on Earth’s Moon. The Moon’s surface has many craters, all of which were formed by impacts.

How is an ejecta blanket formed?

A blanket of ejecta is formed during the formation of meteor impact cratering and is composed usually of the materials of that are ejected from the cratering process. An ejecta blanket is deposited in the interior regions of the crater rim to the final crater rim and beyond the crater rim.

What made craters on the Moon?

One reason the moon has craters because it gets hit by objects, small pieces of rocks that come from outer space. These are pieces of asteroids, comets that are flying around in the solar system. When they hit the surface, there’s an impact. The moon has no atmosphere, and so even a tiny rock will create a crater.

What do lines around craters on the Moon tell us?

In some images, streaks appear along the walls of certain impact craters, designating material that has fallen down into the hole. Other images show long-casted shadows spreading away from the impact point, which speaks to the immense force generated by each impact.

What are lines on the Moon?

Those circular shapes are craters and the lines are “ejecta rays” made from material blasted out of the crater. These craters formed when rocks or comets from space smashed into the surface of the Moon.

What do craters on the Moon tell us?

Easily the most prominent observable geologic features on the Moon and the other terrestrial planets are impact craters. And to a geologist, craters are useful features, because they allow us to make an assessment of the age of a planetary surface and even the nature of its interior.

What ejecta means?

material thrown out
Definition of ejecta : material thrown out (as from a volcano)

What are rays on the moon?

Lunar rays are filamentous, high-albedo deposits occurring radial or subradial to impact craters. “Immaturity” rays are bright due to the presence of fresh, high-albedo material.

What is the size of a typical crater on the Moon?

Typical diameter is about 15 km. The lunar crater archetype is Biot. SOS — the interior floor is wide and flat, with no central peak. The inner walls are not terraced. The diameter is normally in the range of 15–25 km. The archetype is Sosigenes.

What is a complex crater?

Complex craters, on the other hand, display structures such as central peaks, or an inner “peaked” ring, terraced rim walls, and outer concentric faulted zones.

What is the difference between a crater and impact crater?

A crater is a bowl-shaped depression, or hollowed-out area, produced by the impact of a meteorite, volcanic activity, or an explosion. Impact Craters. Craters produced by the collision of a meteorite with the Earth (or another planet or moon) are called impact craters.

What are the different types of craters on Earth?

ALC — small, cup-shaped craters with a diameter of about 10 km or less, and no central floor. The archetype for this category is Albategnius C. BIO — similar to an ALC, but with small, flat floors. Typical diameter is about 15 km. The lunar crater archetype is Biot. SOS — the interior floor is wide and flat,…