Chicxulub crater

It is difficult to envision that one of the greatest impact craters on Earth that measures up to 180km wide and 900m deep could just vanish just from sight. There have been many different dinosaur extinction theories offered in the recent decades. These range from poisonous plants to mass suicide by dinosaur herds. Although one concept as to how the dinosaurs became extinct has gained a wide acceptance since the 1980’s, involving a major earth impact by a meteor or comet (Icr.org, 2014). This horrific

on the Chicxulub asteroid in which she analyzed new core samples taken from the asteroid site (Botzer 2004). These samples indicate that the impact that occurred at Chicxulub actually predated the mass extinction of the dinosaurs, which occurred at the Cretaceous-Tertiary boundary about sixty-five million years ago. Keller claims that the Chicxulub impact occurred approximately 300,000 years before the extinction (Keller 2004). Although previous researchers estimated that the Chicxulub asteroid

of Leuven in Belgium clarified that, “Dim the lights and the entire ecosystem collapses.” Another thing that happened at first impact was numerous tsunamis. One of the tsunamis was created when the asteroid landed in the water off the coast of Chicxulub. The other tsunami was formed on the Western Interior Seaway that cut across the western United States. The giant tsunami from the Western Interior Seaway dumped sediment on a gathering of dinosaurs, sealing and petrifying their whole body remains

slammed into what is now Mexico's Yucatan Peninsula at a site known as Chicxulub. The impact had left a crater 110 to 170 miles in diameter buried nearly a kilometer underground and sparked massive volumes of ash into Earth's atmosphere. This impact is believed to end the existence of the dinosaur and paved the way for the rise of mammals and other species which is now in existence. Scientists have identified 139 impact craters scattered over the surface of the Earth as a result of the main impact

(Barone 2009). LCROSS stands for Lunar Crater Observation and Sensing Spacecraft. The mission was designed to search for water on the surface of the Moon. Water on the Moon has long been theorized, but previous moon missions have not found any (Lutgens 2008). The

cratering. If the colliding objects are of a similar size, collisional fragmentation and annihilation occur, producing a large number of smaller fragments from both involved bodies. If the objects are of differing sizes, collision results in an impact crater on the target body. Since objects that encounter the Moon are dramatically smaller than the Moon itself, cratering occurs. Typical impact velocities of asteroidal objects on the Moon are between 15 and 25 km/sec. With these high velocities, in

the “dare devils” of the group. We both wanted to ride the craters! The craters were the scariest, most dangerous rides. You got into a big metal crate and your crate is loose while it spins you around. So you can change whether or not you want to go fast or slow. Gabe and I started spinning it a ton and were super dizzy afterward. Then the Hudson Lacrosse hat that I was wearing that night fell off my head onto the floor of the crater! I didn't know it at first, but after the ride it was nowhere

its deposition and enrichment thanks to the impaction of a meteorite 1.85 million years ago. The impact of the meteorite is thought to have caused fracturing that led to the generation of magma from deep in the crust that helped in later filling the crater and producing the igneous complex (Faggart et. al., 1985). The igneous complex (Figure 1a) has an elongated shape (60 km long and 27 km wide) with circular deposits surrounding it similar to a bulls-eye. Evidence of the meteoric impact includes brecciation

When read top to bottom, Mina Loy's poem "Lunar Baedeker" may sound like a story of drugs, sex, and desperation. In reality, it is an encrypted biography of part of Loy's life, as well as symbolic of the cycles of life. Let's start with the title, shall we? "Lunar Baedeker," the word 'lunar' means moon. It can also mean relating to the moon, but more importantly it can mean measured by the moon's cycles. What in the world is a "Baedeker" though? Baedeker is actually one Karl Baedeker, a German who

Aim To determine whether the height at which a marble is dropped affect the size of the crater. Scientific knowledge Impact craters are geologic structures formed when a large meteorite, asteroid or comet smashes in to a planet or a satellite. Meteorites are small rocks in space that hit the earth's atmosphere at a high velocity. Throughout their history they have heavily bombarded all the inner bodies in our solar system. In this experiment we will use marbles as our meteorites, these will be