Feeds

ROCK FROM MARS FOUND in Africa, reveals Red Planet's SECRETS

Meteorite comes from the early days on the Red Planet

Secure remote control for conventional and virtual desktops

Boffins have dated a piece of Martian meteorite they reckon is the oldest bit of the planet ever collected.

Martian meteorite NWA7533

Radioactive analysis of the zircons in NWA7533, a meteorite found in Northwest Africa, have revealed that the rock is around 4.4 billion years old - so it was formed just 100 million years after Mars itself. In planetary terms, this is very young indeed.

Florida State University's Muni Humayun and his team investigated the rock using sophisticated mass spectrometers and found that it also contains trace metals like iridium that put its origin in the elusive cratered area of Mars' southern highlands.

"This cratered terrain has been long thought to hold the keys to Mars' birth and early childhood," Humayun explained.

The meteorite is not only a part of the Red Planet's ancient crust, but it's also the first sample to come from this area. Using the rock, the researchers have already been able to figure out the thickness of Mars' crust and confirm what spacecraft measurements have indicated, that the planet didn't experience a giant impact that melted the entire planet in its early history.

"We now know that Mars had a crust within the first 100 million years of the start of planet building, and that Mars' crust formed concurrently with the oldest crusts on Earth and the Moon," Humayan said.

Rather strangely, dating measurements on another meteorite fragment from the same impact, known as NWA7034 or Black Beauty, found that it was just 2.1 billion years old. That research used rubidium dating rather than uranium testing to age the rock and it's possible that the original whole meteorite was actually an amalgamation of several different kinds of stone, which would lead to different ages.

The full study, "Origin and age of the earliest Martian crust from meteorite NWA 7533", was published in Nature. ®

The essential guide to IT transformation

More from The Register

next story
Our LOHAN spaceplane ballocket Kickstarter climbs through £8000
Through 25 per cent but more is needed: Get your UNIQUE rewards!
LOHAN tunes into ultra long range radio
And verily, Vultures shall speak status unto distant receivers
EOS, Lockheed to track space junk from Oz
WA facility gets laser-eyes out of the fog
Volcanic eruption in Iceland triggers CODE RED aviation warning
Lava-spitting Bárðarbunga prompts action from Met Office
NASA to reformat Opportunity rover's memory from 125 million miles away
Interplanetary admins will back up data and get to work
Major cyber attack hits Norwegian oil industry
Statoil, the gas giant behind the Scandie social miracle, targeted
China building SUPERSONIC SUBMARINE that travels in a BUBBLE
Shanghai to San Fran in two hours would be a trick, though
prev story

Whitepapers

Implementing global e-invoicing with guaranteed legal certainty
Explaining the role local tax compliance plays in successful supply chain management and e-business and how leading global brands are addressing this.
Endpoint data privacy in the cloud is easier than you think
Innovations in encryption and storage resolve issues of data privacy and key requirements for companies to look for in a solution.
Why cloud backup?
Combining the latest advancements in disk-based backup with secure, integrated, cloud technologies offer organizations fast and assured recovery of their critical enterprise data.
Consolidation: The Foundation for IT Business Transformation
In this whitepaper learn how effective consolidation of IT and business resources can enable multiple, meaningful business benefits.
High Performance for All
While HPC is not new, it has traditionally been seen as a specialist area – is it now geared up to meet more mainstream requirements?