what is the Soddy crater?
149121
Soddy is an eroded lunar impact crater that lies to the south-southeast of the prominent King crater. Material from the ray system surrounding King covers the sides and interior of Soddy crater. Less than a crater diameter to the west of Soddy is the smaller Heron crater.\n\nThis crater has been heavily worn and eroded, so that only a remnant of a crater depression survives. There are small craterlets along the rim edge to the southwest and southeast. The interior is uneven and almost indistinguishable from the surrounding terrain.\nhttp://en.wikipedia.org/wiki/Soddy_%28crater%29
897783
Also check out the " Four Peaks Amethyst Mine", its in Arizona. It will give you additional information which you are seeking.
414259
crater THANK YOU THE 2POINTS
771981
Meteor craters are usually circular.\n\nThe Barringer Crater has a diameter of 4000 ft, so it has a radius of 2000ft.\n\nRadius = 2pi*r, so it'd be 12560 ft in circumference, give or take.
784744
The K-T event is a mass extinction, which killed the dinosaurs and 90% of all species, the 2nd largest ever (to the Permo-Triassic), is famous for the large bolide (extraterrestrial object) impact that occured off the Yucatan, creating the Chixulub crater. Glass from the crater is dated to 64.98 +/- .01 million years ago.\n\nThis event caused global devistation, evidenced by:\n1) Differing Sr ratios from global wildfires\n2) Microdiamonds from fried Carbon\n3) Tsunami deposits found all over the southeast US\n4) Stishovite (a variety of quartz which forms in extreme pressures)\n5) Worldwide Iridium anomaly. Ir is usually found abundantly in space, but it is very rare on earth. All over the world, at the K-T layer, the amount of Ir is much higher than normal.\n\nIt is theorized that the impact created magnitude 12 earthquakes and blocked the sun for as long as 9 weeks.
1173795
One of the clearest sign of a massive impact was massive extinction of life. The greatest extinction event sometimes called the Great Dying was the Permian-Triassic extinction. It occurred approximately 251 million years ago (mya), forming the boundary between the Permian and Triassic geologic periods. It was the Earth's most severe extinction event, with about 96 percent of all marine species and 70 percent of terrestrial vertebrate species becoming extinct. Recently, a 300-mile-wide crater was discovered in the Wilkes Land region of East Antarctica, which is believed to be linked with the extinction.\n\nA 300-mile-wide crater more than a mile beneath the East Antarctic Ice Sheet was found using gravity fluctuations measured by NASA's GRACE satellites to peer beneath Antarctica's icy surface, imaging a 200-mile-wide plug of mantle material—a mass concentration, or "mascon" in geological parlance—that occurs within the Earth's crust and appears to have been emplaced somewhere between 100 and 500 million years ago—a broad time span that brackets the specific age of the Permian-Triassic extinction.\n\nWhen the scientists overlaid their gravity image with airborne radar images of the ground beneath the ice, they found the mascon perfectly centered inside a circular ridge some 500 km (300 miles) wide. The Wilkes Land crater is more than twice the size of the Chicxulub crater in the Yucatan peninsula, which marks the impact that may have ultimately killed the dinosaurs 65 million years ago. The Chicxulub impactor (most likely an asteroid) is thought to have been 6 miles wide, while the Wilkes Land impactor (either an asteroid or perhaps a large comet nucleus) could have been up to 30 miles wide—four or five times as wide.
133931
There is the base of Multnomah Falls, or Crown Point for the view.  I am biased about Mt. Tabor in SE Portland,it is an extinct volcano. I was married on top of Mt. Tabor,nice view of the city.
631145
I have to admit im not too clued up on the geology of Maryland, however over here in the UK we have in the Mendip Hills something which resembles Obsidian but in fact its not. On a university field trip we went to an old smelt, where the guys used to smelt Limestone and the result was this black shiny stuff that looked identical to Obsidian. The stuff was strewn all over the place in big heaps. Confused the 'ell out of us students initially until we were told the what it actually was. I wish I could remember more about it but then again uni was a bit of a blur!
805319
There are three possible causes for a crater:\n\n- Volcanic activity\n- Meteor impacts\n- Explosions (from, for example, a bomb)\n\nEarth's moon has never been bombed, and doesn't have volcanoes.  Is that enough help?
247030
thats an igneoous rock. dont know where to get one though
574830
Here you go:\n\nhttp://volcano.und.edu/vwdocs/msh/
85952
(You probably mean NON-terrestrial planets.)  Craters (whether you mean meteor craters or valocanic craters) on earth are less evident because they are constantly being eroded by weather effects such as wind, rain including floods, and geological activity such as volcanoes and plate tectonics.  The moon for example, does not have any of that, so the only thing that might make meteor craters less evident is another later meteor strike.
163888
Our minds work in a way we can make faces in many this we see, in this case the moon. It is not a smiling face, those are craters that were made in a way that to us it seems as if the moon is smiling.
1123416
It's called Blazon Gap. It's a natural feature. The ridge is Oyster Ridge.
175595
epicenter\nif you want to learn more:\nhttp://earthquake.usgs.gov/learning/facts.php
409171
Good question.  Meteors strike the moon at all angles, yet always leave round craters.  Why is that?  Well the answer lies in the way the craters are formed.  They are not formed by a plowing motion like a rock hitting a pile of sand, but rather they are formed by an explosion.\n\nA meteroite striking the surface of the moon is traveling at a very , very high speed (10-70km/s!), as a result it carries with it a great deal of kinetic energy.  When the impactor hits the surface it compresses and distorts the ground around the impact.  This compressed ground creates a shockwave and then rebounds upward, eploding up and out of the crater.  If you have ever seen a slow-motion movie of water or milk drops slashing, that is what the impact more resembles.  Remember that with this much energy being transfered you are really dealing with an explosion, just like one caused by a very large bomb.\n\nSince it is caused by this compression and then explosive decompression of the surface, you will get a round hole, regardless of what angle your impactor comes in from.  Almost.  If the impact is at a very, very steep, almost glancing angle you will leave more of an elliptical carter, you will also knock rocks off of the surface, as you really are just gouging the surface in this extream case.
195123
no.  you're going to get a variety of responses ranging from the reasonable, like david's to the utterly ridiculous, like a lot of the others already here.\n\nas for the claims that the crater in the yucatan is supposition or "only a theory" (ever heard these words before?) there is a lot of evidence for it:\n\n"Probably the most convincing evidence for a worldwide catastrophe was the discovery of the crater which has since been named Chicxulub Crater. This so-called smoking gun is centered on the Yucatan Peninsula of Mexico and was discovered by Tony Camargo and Glen Pentfield while working as geophysicists for the Mexican oil company PEMEX. What they reported as a circular feature later turned out to be a crater estimated to be 180 kilometers in diameter. Other researchers would later find that the end-Cretaceous extinction event that wiped out the dinosaurs had lasted for thousands of years instead of millions of years as had previously been thought. This would be the final piece of evidence that convinced the vast majority of scientists that this extinction resulted from a point event that is most probably an extra-terrestrial impact and not from increased volcanism and climate change (which would spread its main effect over a much longer time period)."\n\nIt seems to be a bit more than a layer of clay in the ground.\n\nwhether this is worthy enough for biblical mention is debatable, but it seems that such a large impact would have had tremendous effects on any living species at the time, including (as creationists claim) humans.  why is there no mention of it either in the bible or other human cultures?  probably because it happened long before any humans were around.  it would have been a very important event, more important than a lot of the mentioned events in the bible.\n\nand if it is mentioned in the bible, please provide a passage.