http://www.space.com/834-mystery-arizona-meteor-crater-solved.html
Published on March 9, 2005 by Robert Roy Britt there is a new theory that explains how the meteor crater near Winslow Arizona was formed. The asteroid that created the crater is believed to have been traveling much slower than originally thought. The article suggests that the meteor was traveling at speeds greater than ten time the speed of a bullet shot from a rifle. The main mystery surrounding this impact event concerns the fact that the liquefied rock in the crater is significantly less than anticipated because of the impact. The size of the crater measures a depth of 570 feet with a diameter of 4,100 feet. The crater was created approximately fifty thousand years ago
The article explains the consequences of their efforts to drill into the Chicxulub crater in Mexico, the site where the asteroid supposedly struck. There was a lot of arguments as to which scientist would take the core section to analyze. In the end
Gerta Keller, professor of geosciences at Princeton University, has recently conducted research 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 was the cause of the extinctions, there had always been doubts about the exact age and size of the crater, and about the origin of the “mega tsunami deposits” that were located within the crater (Keller 2004). The focus of Keller’s recent research was on finding some answers to these questions. To do so she analyzed Cretaceous limestone, dolomite, and anhydrite deposits as the site of the Chicxulub crater (Keller 2004).
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 free falling objects that will be used to copy an asteroid impact. The surfaces of the Moon, Mars and Mercury, where other geologic processes stopped millions of years ago, record this bombardment clearly. On the Earth, however, which has been
The Meteorite has a mid-level durability. It comprises of two layers of Thermium fabric. This saves cost, makes the jacket lighter, and prevents compressed insulation. It is more durable than single-layer nylon jackets but it does fall short of those with three layers.
Scientist have discovered that a meteor, has been lost for 25 years after losing orbit has finally been found headed toward Clare High School. Most of the people in Clare, Michigan were all freaking out, while the student of Clare High were calm and collective. “We say it will hit in approximately 5 days,” one scientist said, “So we shall head to the Smithsonian Institute of Science and Technology in Washington D.C.”
Viewed from a distance there appeared to be a shining beacon coming from Ceres that mesmerized scientist, the beautiful glow turned out to be a complex reflective material in a 57-mile crater called “Occator”. It is thought that following the huge impact that formed the crater, underground briny salt water came up to
Background Research: A meteoroid is a small chunk of rock that has been broken apart from a much larger chunk of rock called an asteroid, these chunks of rock are located in between Mars and Jupiter, called the asteroid belt. When a meteoroid has been knocked out of the asteroid belt and is on it way towards earth the meteoroid is now a meteor, if the the meteor hits the ground it changes to a meteorite. When the meteorite makes contact with the ground it causes a crater to form, craters are holes on the ground made by the impact of a meteoroid coming towards earth.
Cheryl explains that due to an eruption the mountain was reduced to a pile of ash, pumice and lava. The explosion also created a huge indentation that slowly filled and was named Crater Lake ( Strayed 262). Cheryl compares the crater to an enormous empty bowl that was slowly filled back up by rain, snow and mud. This once wasteland was somehow no longer even there.
Dr. Richard Waitt inform us that the eruption on May 18, 1980 surprise scientists because they had a lot of data that they collected and that data didn’t indicated that an eruption was going to come on that day. When it blast in May 18, 1980, it destroyed everything in their path. For example, a total of 57 people were killed, thousands of deer, elk, bears, and other wildlife were killed, and the eruption had cut open a 2,000-foot-wide crater in the top. The landscape was unrecognizable by geologist who had spent about two months before the explosion on May 18 working up the volcano every day. It is interesting to know that discolored rock in the valley and in the crater wall were evidence that the mountain was decaying before the eruption.
Yellowstone National Park is one of the most beautiful and wild life filled places in the United States, and also one of the most dangerous places. Yellowstone is home to a supervolcano that can decimate populations of animals and humans. This volcano is named Yellowstone Caldera. The volcano is currently dormant but can strike any minute.The volcano has three dangerous aspects and possible effects to it. If the Yellowstone Caldera ever erupted, the ash, lava, and change of climate from the volcano can forever change the United States.
Lacustrine deposits at profiles 13-6 and 13-5, located within the maar crater near its eastern wall, occur at elevations of 1921.5 ± 0.2 m and 1919.4 ± 0.2 m, respectively. The profile 13-6 deposits are ~25 m higher than the modern lake level (1895.9 m) and ~10 m higher than highstand deposits at ~1911 m previously documented and radiocarbon dated by Bradbury (1967) on the northeast flank of the west cinder cone. The ~1921.5 m lacustrine deposits in the eastern part of the crater thus appear to represent the highest documented level of ZSL. Although Bradbury (1967:Figure 13) apparently also documented the same lacustrine highstand deposits as we did at profiles 13-5 and 13-6, it appears he mapped them ~50 m west (and downslope) of their actual location. We were able to more accurately plot their location and elevation using a
There is evidence of grooves and craters in the land where water would have flowed similar to the rivers, channels, and lakes on Earth. The textbook notes runoff channels that were “found in the southern highland” (Chaisson & McMillan, 2014, p 245), similar to our rivers, and outflow channels where large amounts of water drained “from the southern highlands into the northern plains” (Chaisson & McMillan, 2014, p 245). Also, chemical compounds found in the rocks suggested that there was water on the planet. Rocks found in the huge Endurance crater showed evidence that they had been wet before. The crater was huge (over 300 feet long) which could hold an immense amount of water.
Meators hit earth very hard from where they come from theres no gravtiy and wheres no gravtiy? Ha you guessed it space! Metors fall from space with no gravtiy causing them to get all the flueds that pass by. Witch sets them on fire and when they get to earth they cause a power explosion! KABOOM! Some metors hit the same place so many times they have signs or it hits near that place a-lot just take a look at this!
How exactly the asteroid damaged the Earth remains unclear, but the power released by such an impact is unquestionable. Effects possibly include reduced sunlight over a period of several months which possibly led to the decline or even total halt of primary production (via photosynthesis). One of the dominant signatures of the extinction at the KT boundary was the low activity of primary production, the possibility of reduced sunlight is high (Schulte et al. 2010) . Even if the primary production proved to be on a decline when this impact occurred, there is still some uncertainties as to where exactly the impact hit. This was why asymmetries in subsurface features of the Chicxulub crater were observed via geophysical methods were analyzed and it was calculated from estimates that the
The asteroid instantaneously made a hole that was 100km wide and 30km deep. Experts say that " it hit at the same energy as 100 million atomic bombs and left behind a 100-mile-wide scar known today as the Chicxulub creator” Many scientists believe that the impact of the Chicxulub asteroid played a big part in the "KT Extinction" which was the extinction of almost all life on earth, including the dinosaurs. When the bowl collapsed it left behind a 200km creator across and a couple of km deep. Later, on the centre of the crater "rebounder and collapsed again", this time it produced an inner ring. Now days a larger percentage of the creator is buried offshore, under about 600m of sediments. The parts of the crater that are still on land are cover in limestone and at the rim of the crater there is an arc of