Immature lunar formations and palaeoregolith deposits as sources
... • Formation preserved regolith under new volcanic lava. The volcanic lava of resent volcano of Tsiolkovsky crater. • Formation preserved regolith under impact melt flow on edges of any craters rims. ...
... • Formation preserved regolith under new volcanic lava. The volcanic lava of resent volcano of Tsiolkovsky crater. • Formation preserved regolith under impact melt flow on edges of any craters rims. ...
No Slide Title
... • If they are big enough, they will not totally burn up and will hit the earth. Meteors that survive are called METEORITES • Meteorites can cause damage. When they hit the earth they create CRATERS, just like on the moon. The earth has been hit by millions of meteorites in the past, their craters h ...
... • If they are big enough, they will not totally burn up and will hit the earth. Meteors that survive are called METEORITES • Meteorites can cause damage. When they hit the earth they create CRATERS, just like on the moon. The earth has been hit by millions of meteorites in the past, their craters h ...
Chapter 9 Planetary Geology What are terrestrial planets like on the
... History of Cratering • Most cratering happened in first ...
... History of Cratering • Most cratering happened in first ...
Powers of ten notation
... Radar images of Venus Bright areas in radar images indicate rough terrain, while dark areas are smooth. Typically, rough terrain is younger than smooth terrain. ...
... Radar images of Venus Bright areas in radar images indicate rough terrain, while dark areas are smooth. Typically, rough terrain is younger than smooth terrain. ...
While watching the movie video Asteroids, answer the follow
... believe it was a meteor crater? (There are 2.) What type of rock had been altered by the impact and was the clue needed to determine it was an asteroid impact? How long ago do scientists believe the impact occurred? ...
... believe it was a meteor crater? (There are 2.) What type of rock had been altered by the impact and was the clue needed to determine it was an asteroid impact? How long ago do scientists believe the impact occurred? ...
Impact cratering
... • Molten rock rises for a number of reasons – It is of lower density than solid rock. – Most of Earth’s interior is NOT molten, so molten rock can be squeezed up to the surface. – Contains trapped gases that expand as it rises. ...
... • Molten rock rises for a number of reasons – It is of lower density than solid rock. – Most of Earth’s interior is NOT molten, so molten rock can be squeezed up to the surface. – Contains trapped gases that expand as it rises. ...
CAN IMPACTS INDUCE VOLCANIC ERUPTIONS? by H. J. Melosh
... the K/T impact does nearly coincide with the beginning of the Deccan volcanic episode, recent evidence suggests that the volcanism actually pre-dated the impact by a few million years [11]. Another problem with such an association is the sheer amount of energy involved. The volume of the Deccan trap ...
... the K/T impact does nearly coincide with the beginning of the Deccan volcanic episode, recent evidence suggests that the volcanism actually pre-dated the impact by a few million years [11]. Another problem with such an association is the sheer amount of energy involved. The volume of the Deccan trap ...
Simple Impact Craters
... surface material and that of Earth concerns the most common kinds of rocks. On the Earth, the most common rocks are sedimentary, because of atmospheric and water erosion of the surface. On the Moon there is no atmosphere to speak of and little or no water, and the most common kind of rock is igneous ...
... surface material and that of Earth concerns the most common kinds of rocks. On the Earth, the most common rocks are sedimentary, because of atmospheric and water erosion of the surface. On the Moon there is no atmosphere to speak of and little or no water, and the most common kind of rock is igneous ...
Metallic meteorites
... Stony meteorites are similar to the composition of rocks you would find on Earth. Metallic meteorites are made of mostly ...
... Stony meteorites are similar to the composition of rocks you would find on Earth. Metallic meteorites are made of mostly ...
Slide 1
... • Shield volcanoes have a steep cliff wall called a scarp • They also have a caldera – the largest and most explosive volcanic eruptions eject tens to hundreds of cubic kilometers of magma. When such a large volume of magma is removed from beneath a volcano, the ground subsides or collapses into the ...
... • Shield volcanoes have a steep cliff wall called a scarp • They also have a caldera – the largest and most explosive volcanic eruptions eject tens to hundreds of cubic kilometers of magma. When such a large volume of magma is removed from beneath a volcano, the ground subsides or collapses into the ...
NATS1311_120408_bw
... temperature, and surrounding pressure. Weaker rock can slowly deform and flow over millions of years. Why asteroids are irregularly shaped - weak gravity unable to overcome rigidity of rock. Gravity of larger world can overcome strength of solid rock, shaping it into a sphere - will shape anything o ...
... temperature, and surrounding pressure. Weaker rock can slowly deform and flow over millions of years. Why asteroids are irregularly shaped - weak gravity unable to overcome rigidity of rock. Gravity of larger world can overcome strength of solid rock, shaping it into a sphere - will shape anything o ...
Solar System Notes:
... These planets are much father away from the sun. Made of gas, have many rings and moons An asteroid best separates the outer planets from the inner planets. Jupiter is the largest planet. Pluto is now considered a dwarf planet Crater: A crater is a large, bowl-shaped hole found in solid, ...
... These planets are much father away from the sun. Made of gas, have many rings and moons An asteroid best separates the outer planets from the inner planets. Jupiter is the largest planet. Pluto is now considered a dwarf planet Crater: A crater is a large, bowl-shaped hole found in solid, ...
ppt - Earth2Class
... Crater in northern Canada shows the remains of a collision estimated to have taken place 215 million years ago. It’s about 85 km in diameter. ...
... Crater in northern Canada shows the remains of a collision estimated to have taken place 215 million years ago. It’s about 85 km in diameter. ...
Impact crater
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 with the surface. 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. Impact craters range from small, simple, bowl-shaped depressions to large, complex, multi-ringed impact basins. Meteor Crater is perhaps the best-known example of a small impact crater on Earth.Impact craters are the dominant geographic features on many solid Solar System objects including the Moon, Mercury, Callisto, Ganymede and most small moons and asteroids. On other planets and moons that experience more active surface geological processes, such as Earth, Venus, Mars, Europa, Io and Titan, visible impact craters are less common because they become eroded, buried or transformed by tectonics over time. Where such processes have destroyed most of the original crater topography, the terms impact structure or astrobleme are more commonly used. In early literature, before the significance of impact cratering was widely recognised, the terms cryptoexplosion or cryptovolcanic structure were often used to describe what are now recognised as impact-related features on Earth.The cratering records of very old surfaces, such as Mercury, the Moon, and the southern highlands of Mars, record a period of intense early bombardment in the inner Solar System around 3.9 billion years ago. The rate of crater production on Earth has since been considerably lower, but it is appreciable nonetheless; Earth experiences from one to three impacts large enough to produce a 20 km diameter crater about once every million years on average. This indicates that there should be far more relatively young craters on the planet than have been discovered so far. The cratering rate in the inner solar system fluctuates as a consequence of collisions in the asteroid belt that create a family of fragments that are often sent cascading into the inner solar system. Formed in a collision 160 million years ago, the Baptistina family of asteroids is thought to have caused a large spike in the impact rate, perhaps causing the Chicxulub impact that may have triggered the extinction of the non-avian dinosaurs 66 million years ago. Note that the rate of impact cratering in the outer Solar System could be different from the inner Solar System.Although Earth's active surface processes quickly destroy the impact record, about 170 terrestrial impact craters have been identified. These range in diameter from a few tens of meters up to about 300 km, and they range in age from recent times (e.g. the Sikhote-Alin craters in Russia whose creation were witnessed in 1947) to more than two billion years, though most are less than 500 million years old because geological processes tend to obliterate older craters. They are also selectively found in the stable interior regions of continents. Few undersea craters have been discovered because of the difficulty of surveying the sea floor, the rapid rate of change of the ocean bottom, and the subduction of the ocean floor into Earth's interior by processes of plate tectonics.Impact craters are not to be confused with landforms that in some cases appear similar, including calderas and ring dikes.