Quote:Hi. I am conducting some research on a meteorite impact scenario. I know this forum is filled with scientific geniuses so here's to hoping we have a resident expert (amateur or otherwise) who can shed light on a few things for me.As an example, suppose we have a smaller meteorite about 1.3 meters wide leaving a crater with diameter of 45 meters & depth of 16 meters into the bedrock of a desert environment...based on Kamil Crater in Egypt. However, our scenario calls for a similar meteorite striking a salt flat which is more than a kilometer deep.1. Given that the impacted material in our scenario is compacted salt, would you expect the resulting crater to be similar, larger or smaller than Kamil Crater?2. Do you think the ejected salt chunks would be on fire (or hot enough to ignite other materials) when they hit the ground?3. Could you give a rough estimate for how far you would expect the ejecta to travel? I know this might vary based on angle of impact & whatnot but a ball park figure is all I'm looking for.4. I know that certain types of meteorites may leave stones or crystals of a green color within the surviving debris. Would this still be a possibility if our meteorite hit a salt flat?5. Would the answers to these questions vary based on whether the salt flat was exposed or covered in, say, 10 meters of water? If so, how would the water change things?Please humor me...this is a serious inquiry and I'm not sure where else to go with this. Thanks!
Celestron 8SE Dobstuff 13.1": Swayze refigured Coulter mirror, 6 pt mirror cell (2 pt edge support) and CF focuser board made by me StarBlast 4.5 ST80/PortaMount II Zhumell 20x80/Oberwerk 15x70 on a Seronik-style tripod boom mount Hubble Optics 18 inch F/4 mirror.
Quote:A 1.6 m (8 tonne) iron meteor hits the ground at 2.2-3.3 km/sec, which is fast enough to have the kinetic energy equal to a similar weight of high explosive. So this is similar to a WWII era blockbuster "earthquake bomb", perhaps a little larger. Try this query in Google Maps to see one such: "54.186029,7.878935".1. A salt bed would be similar to sedimentary rock (it is, as a matter fact, sedimentary rock).2. No. The meteor fragments themselves would be hot, but the ejecta (which outweighs the meteor by more than 1000-to-1) would be unaffected in temperature.3. Hundreds of meters.4. No. This is an iron meteorite. It will give pieces of iron.5. Yes 10 meters of water would change the situation dramatically. There would be a big splash, and a much shallower underwater crater. The iron would be cooled immediately by the water. Little, if any, ejecta other than water.
Quote: Genesis19:24 Then the LORD rained upon Sodom and upon Gomorrah brimstone and fire from the LORD out of heaven;19:25 And he overthrew those cities, and all the plain, and all the inhabitants of the cities, and that which grew upon the ground.19:26 But his wife looked back from behind him, and she became a pillar of salt.19:27 And Abraham gat up early in the morning to the place where he stood before the LORD:19:28 And he looked toward Sodom and Gomorrah, and toward all the land of the plain, and beheld, and, lo, the smoke of the country went up as the smoke of a furnace.
Quote:Ordinary chondrite (H5)One piece of 73.5 g was found on sandy soil. Classification and analysis: olivine Fa19.1, pyroxene Fs17.4Wo0.5; Jürgen Otto, Mineralog. Petrogr. Institut der Universitat, Albert-Strasse 23 b, D79104 Freiburg. Main mass: Swiss Meteorite Laboratory, P.O.Box 126, CH-8750 Glarus, Switzerland.
Brian S. Johnson
All Terrain Z10 http://tinyurl.com/ouxfsyu with refigured primary, 63mm Protostar secondary.
Quote:The Salt Flats (Sebkah) that I saw in Saudi Arabia and Iraq could be wet or dry. If dry, you could land a C-130 on them without any worries. It was a challenge to make a dent in them with a pick-axe. If they were wet, it could swallow a tank up to its turret! Concrete vs. Slime
Michael Gilmer - Member of the Meteoritical Society & Collector of Falling Stars.
☄ ⒼⒶⓁⒶⒸⓉⒾⒸ ⓈⓉⓄⓃⒺ - www.galactic-stone.com
Quote:I also have another question. Follow this LINK to see a photo regarding this question. These large & generally spherical rock balls are all over the ground in an area of this rocky desert. Some of them are huge enough that two people can hug it & touch hands. They are apparently protected by the government because they emit the smell of sulfur when broken open
Wojo's Lone Pine Observatory
Starmaster 14.5 f4.5 and a Meade 2080 Astro Systems Nexus W/iPad DSC 9mm,13mm,17mm Naglers 19mm,24mm,27mm,35mm Panoptics, Paracorr and 2x Powermate
Quote:We have Concretion in shale around here . We called them turtle rocks as kids, In some areas their made of iron sulfide when they are either cut or hammered, they produce sparks and a burning sulfur smell