Titanic Struggle Removes Theia

  • Author: David Bradley
  • Published: 29 March 2012
  • Copyright: Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
  • Source / Publisher: Nature Geoscience/Nature Publishing Group
thumbnail image: Titanic Struggle Removes Theia

Planetary scientists have long hypothesized that the Moon formed when an object the size of the planet Marsknown as Theia—collided with the early Earth. However, the discovery that oxygen isotope ratios on the Moon and Earth are almost identical is inconsistent to this moon-formation model that has 40 % of the Moon's mass deriving from Theia.


A similar finding based on mass spectrometry carried out at the University of Chicago, USA, and the University of Bern, Switzerland, on the more refractory material, titanium, now suggests that the Moon was formed from material of the mantle of the proto-Earth rather than material from an enormous impactor, such as Theia.


Article Views: 1763

Sign in Area

Please sign in below

Additional Sign In options

Please note that to comment on an article you must be registered and logged in.
Registration is for free, you may already be registered to receive, e.g., the newsletter. When you register on this website, please ensure you view our terms and conditions. All comments are subject to moderation.

Article Comments - To add a comment please sign in

Bookmark and Share

If you would like to reuse any content, in print or online, from ChemistryViews.org, please contact us first for permission. more


CONNECT:

ChemistryViews.org on Facebook

ChemistryViews.org on Twitter ChemistryViews.org on YouTube ChemistryViews.org on LinkedIn Sign up for our free newsletter


A product of ChemPubSoc Europe (16 European Chemical Societies)and Wiley-VCH