Jump to content
Main menu
Main menu
move to sidebar
hide
Navigation
Main page
Recent changes
Random page
Help about MediaWiki
Special pages
Niidae Wiki
Search
Search
Appearance
Create account
Log in
Personal tools
Create account
Log in
Pages for logged out editors
learn more
Contributions
Talk
Editing
Martian meteorite
(section)
Page
Discussion
English
Read
Edit
View history
Tools
Tools
move to sidebar
hide
Actions
Read
Edit
View history
General
What links here
Related changes
Page information
Appearance
move to sidebar
hide
Warning:
You are not logged in. Your IP address will be publicly visible if you make any edits. If you
log in
or
create an account
, your edits will be attributed to your username, along with other benefits.
Anti-spam check. Do
not
fill this in!
===Nakhlites=== [[File:Nakhla meteorite.jpg|thumb|200px|[[Nakhla meteorite]]'s two sides and its inner surfaces after breaking it]] {{Main|Nakhlite}} Nakhlites are named after the first of them, the [[Nakhla meteorite]], which fell in [[El-Nakhla]], [[Alexandria]], [[Egypt]] in 1911 and had an estimated weight of 10 [[gram|kg]]. Nakhlites are [[igneous rock]]s that are rich in [[augite]] and were formed from [[basalt]]ic [[magma]] from at least four eruptions, spanning around 90 million years, from 1416βΒ±β7 to 1322βΒ±β10 million years ago.<ref name=":0">{{Cite journal|last1=Cohen|first1=Benjamin E.|last2=Mark|first2=Darren F.|last3=Cassata|first3=William S.|last4=Lee|first4=Martin R.|last5=Tomkinson|first5=Tim|last6=Smith|first6=Caroline L.|date=2017-10-03|title=Taking the pulse of Mars via dating of a plume-fed volcano|journal=Nature Communications|language=En|volume=8|issue=1|pages=640|doi=10.1038/s41467-017-00513-8|pmid=28974682|pmc=5626741|issn=2041-1723|bibcode=2017NatCo...8..640C}}</ref> They contain [[augite]] and [[olivine]] [[crystal]]s. Their crystallization ages, compared to a crater count chronology of different regions on Mars, suggest the nakhlites formed on the large volcanic construct of either [[Tharsis]], [[Elysium Planitia|Elysium]], or [[Syrtis Major Planum]].<ref name=Nakhlites>{{cite journal |author=Treiman, A.H. |url=https://www.lpi.usra.edu/science/treiman/nakhlite_rev.pdf |title=The nakhlite meteorites: Augite-rich igneous rocks from Mars |volume=65 |issue=3 |journal=Chemie der Erde |pages=203β270 |year=2005 |access-date=July 30, 2011|bibcode=2005ChEG...65..203T |doi=10.1016/j.chemer.2005.01.004 }}</ref> It has been shown that the nakhlites were suffused with liquid water around 620 million years ago and that they were ejected from Mars around 10.75 million years ago by an asteroid impact. They fell to Earth within the last 10,000 years.<ref name=Nakhlites/>
Summary:
Please note that all contributions to Niidae Wiki may be edited, altered, or removed by other contributors. If you do not want your writing to be edited mercilessly, then do not submit it here.
You are also promising us that you wrote this yourself, or copied it from a public domain or similar free resource (see
Encyclopedia:Copyrights
for details).
Do not submit copyrighted work without permission!
Cancel
Editing help
(opens in new window)
Search
Search
Editing
Martian meteorite
(section)
Add topic