2.7 Billion Year Old Rocks Provide Clues to Earth’s “Great Oxidation Event"
The 2.5 billion-year-old Mt. McRae Shale from Western Australia was analyzed for thallium and molybdenum isotope compositions, revealing a pattern that indicates manganese oxide minerals were being buried over large regions of the ancient sea floor. For this burial to occur, O2 needed to have been present all the way down to the sea floor 2.5 billion-years-ago.
Image credit: Chad Ostrander, ASU
Oxygen in the form of the oxygen molecule (O2), produced by plants and vital for animals, is thankfully abundant in Earth’s atmosphere and oceans. Researchers studying the history of O2 on Earth, however, know that it was relatively scarce for much of our planet’s 4.6 billion-year existence.
So when, and in what environments, did O2 begin to build up on Earth?
By studying ancient rocks, researchers have determined that sometime between 2.5 and 2.3 billion years ago, Earth underwent what scientists call the’” or “GOE” for short. O2 first accumulated in Earth’s atmosphere at this time and has been present ever since.
Through numerous studies in this field of research, however, evidence has emerged that there were minor amounts of O2 in small areas of Earth’s ancient shallow oceans before the GOE. And in a study published recently in the journal Nature Geoscience, a research team led by scientists at Arizona State University has provided compelling evidence for significant ocean oxygenation before the GOE, on a larger scale and to greater depths than previously recognized.
For this study, the team targeted a set of 2.5 billion-year-old marine sedimentary rocks from Western Australia known as the Mt. McRae Shale.
“These rocks were perfect for our study because they were shown previously to have been deposited during an anomalous oxygenation episode before the Great Oxidation Event,” said lead author Chadlin Ostrander, of ASU’s School of Earth and Space Exploration.
Shales are sedimentary rocks that were, at some time in Earth’s past, deposited on the sea floor of ancient oceans. In some cases, these shales contain the chemical fingerprints of the ancient oceans they were deposited in.
Stromatolite in Shark Bay, Western Australia. These stromatolites are thought to be some of the most ancient forms of life on Earth and are comprised of organisms that probably contributed to the O2 scientists are inferring existed on ancient Earth (i.e., cyanobacteria).
For this research, Ostrander dissolved shale samples and separated elements of interest in a clean lab, then measured isotopic compositions on a mass spectrometer. This process was completed with the help of co-authors Sune Nielsen at Woods Hole Oceanographic Institution (Massachusetts); Jeremy Owens at Florida State University; Brian Kendall at the University of Waterloo (Ontario, Canada); scientists Gwyneth Gordon and Stephen Romaniello of ASU’s School of Earth and Space Exploration; and Ariel Anbar of ASU’s School of Earth and Space Exploration and School of Molecular Sciences. Data collection took over a year and utilized facilities at Woods Hole Oceanographic Institution, Florida State University and ASU.
Get Paid to Expose the Fake News! https://tinyurl.com/y2rodxfg
Support BeforeitsNews by trying APeX (far superior to colloidal silver) or any of our other great products at www.mitocopper.com
Check out the life changing BeforeitsNews natural health products and sign up to be an Affiliate so you earn on all sales through your links on Beforeitsnews, other websites or social networks!
APeX – Far superior to colloidal silver in destroying viruses, bacteria and other pathogens. See the videos and 50 page report!
Ultimate Curcumin – Most powerful natural pain relief you can buy. Reduce inflammation, depression, arthritis and so much more!
Supreme Fulvic – Nature’s most important supplement! Read our amazing testimonials and experience vivid dreams again!
MitoCopper – First bioavailable copper cleans up your blood from pathogens and gives you more energy! Watch all videos on our website
Use code Alton777 for a 10% discount on products
Contacts and sources:
Karin Valentine
Citation:Fully oxygenated water columns over continental shelves before the Great Oxidation Event.
Chadlin M. Ostrander, Sune G. Nielsen, Jeremy D. Owens, Brian Kendall, Gwyneth W. Gordon, Stephen J. Romaniello, Ariel D. Anbar. Nature Geoscience, 2019; DOI: 10.1038/s41561-019-0309-7
Source: http://www.ineffableisland.com/2019/02/27-billion-year-old-rocks-provide-clues.html
Anyone can join.
Anyone can contribute.
Anyone can become informed about their world.
"United We Stand" Click Here To Create Your Personal Citizen Journalist Account Today, Be Sure To Invite Your Friends.
Please Help Support BeforeitsNews by trying our Natural Health Products below!
Order by Phone at 888-809-8385 or online at https://mitocopper.com M - F 9am to 5pm EST
Order by Phone at 866-388-7003 or online at https://www.herbanomic.com M - F 9am to 5pm EST
Order by Phone at 866-388-7003 or online at https://www.herbanomics.com M - F 9am to 5pm EST
Humic & Fulvic Trace Minerals Complex - Nature's most important supplement! Vivid Dreams again!
HNEX HydroNano EXtracellular Water - Improve immune system health and reduce inflammation.
Ultimate Clinical Potency Curcumin - Natural pain relief, reduce inflammation and so much more.
MitoCopper - Bioavailable Copper destroys pathogens and gives you more energy. (See Blood Video)
Oxy Powder - Natural Colon Cleanser! Cleans out toxic buildup with oxygen!
Nascent Iodine - Promotes detoxification, mental focus and thyroid health.
Smart Meter Cover - Reduces Smart Meter radiation by 96%! (See Video).
| Online: | |
| Visits: | 1,603,561,005 |
| Stories: | 8,150,578 |
Whistler Blowers, Insiders
You are really going to upset the christians with this. They apparently believe an invisible man in the sky made the Earth about 10,000 years ago.
Can you imagine what trauma you’re causing