by Staff Writers
London (UPI) Sep 10, 2013
Water found in ancient Moon rocks might have actually originated on the early Earth and even survived the Moon-forming collision event, British researchers say.
That's the suggestion of Jessica Barnes and colleagues at The Open University who investigated the amount of water present in the mineral apatite, a calcium phosphate mineral found in samples of the ancient lunar crust brought back to earth by the Apollo missions.
"These are some of the oldest rocks we have from the Moon and are much older than the oldest rocks found on Earth," Barnes said. "The antiquity of these rocks make them the most appropriate samples for trying to understand the water content of the Moon soon after it formed about 4.5 billion years ago and for unraveling where in the Solar System that water came from."
Barnes presented the study's finding Monday at the European Planetary Science Congress in London.
The ancient lunar rocks contain appreciable amounts of water locked into the crystal structure of apatite, the researchers said, noting they have measured the hydrogen isotopic signature of the water in these lunar rocks to identify the potential source for the water.
"The water locked into the mineral apatite in the Moon rocks studied has an isotopic signature very similar to that of the Earth and some carbonaceous chondrite meteorites," Barnes said.
"The remarkable consistency between the hydrogen composition of lunar samples and water-reservoirs of the Earth strongly suggests that there is a common origin for water in the Earth-Moon system."
Mars News and Information at MarsDaily.com
Lunar Dreams and more
|The content herein, unless otherwise known to be public domain, are Copyright 1995-2012 - Space Media Network. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA Portal Reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement,agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. Privacy Statement|