Monday, October 14, 2013

Leads to the Early Solar System (Jeanne)


Based on materials provided by the Carnegie Institution the reputable article New Clues to the Early Solar System from Ancient Meteorites scientists Doug Rumble and Liping Qin share their knowledge of meteorites. Through examining samples from meteorites the scientists were able to conclude the layers in the composition of meteorites; including a metallic core, asilicate mantle, and a crust. In order to achieve this composition the object must endure a lot of heat coming from collisions and other chemical energy sources. From the composition of the crust we can determine age of the body. There is a certain amount of elements that should be in the core and mantle of a celestial body, but the Earth, Mars, and our moon have more than they should. This is due to accretion, and after being studied it shows that the core was created before these elements composed. On Earth evidence of the accretion is not preserved because of the crust formation and the development of our atmosphere and plate tectonics. This research shows us a picture of the earliest days of our Solar System and it will continue to help scientists study. Because of all the technical terms in this article, it is a bit complicated to understand, but I think have deciphered it well.

Accretion is the process of growth or increase, typically by the gradual accumulation of additional layers or matter.

"New Clues to the Early Solar System from Ancient Meteorites." ScienceDaily. ScienceDaily, 22 July 2012. Web. 14 Oct. 2013.
http://www.sciencedaily.com/releases/2012/07/120722135204.htm

1 comment:

  1. I like how you used proper citation, and defined "accretion" for your readers. I agree that you got the gist of this technical article. You captured some of the main points in your summary.

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