HIP HOP LIFESTYLE

Announcement

Collapse
No announcement yet.

[7/13] Researchers Find Ancient Evidence of 'Snowball Earth'

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • [7/13] Researchers Find Ancient Evidence of 'Snowball Earth'

    LSU scientist Huiming Bao, along with colleagues from UCLA and China, recently discovered some of the first atmospheric evidence in support of the “Snowball Earth” hypothesis. This theory suggests that Earth was entirely covered by ice during the Cryogenian period, which took place from about 790 to 630 million years ago. Their findings were reported in the May 22 issue of Nature.

    Bao and his group used a new parameter called “sulfate oxygen-17 anomaly” to measure atmospheric records found in mineral sulphate deposits. “My group specializes in measuring these anomalies – very few other groups do,” said Bao. “This puts us in an extremely good position for uncovering previously unknown information.”

    These oxygen-17 anomalies are usually not measured by scientists who study Earth rocks because they were originally believed to be exclusively extra-terrestrial in nature, coming only from specific types of asteroids. Over the years, Bao’s group has worked on many extremely dry deserts on Earth and shown that there are a large range of oxygen-17 anomalies among desert salts that record atmospheric reactions.

    All of the previous documented anomalies are positive, meaning that there is an excess in oxygen-17 isotopes. This finding, however, reveals a large depletion in oxygen-17 content in some of the sulfate minerals. These are the first oxygen-17 depletions, or negative anomalies, found in Earth minerals. What is even more striking is the timing of the negative anomalies – there is a spike in the depletion right at the time when a global glaciation came to an abrupt end approximately 635 million years ago.

    To account for the data, Bao and his colleagues proposed that this depletion spike was caused by an extremely high atmospheric carbon dioxide concentration at that time, at least 40 times the modern level. That is what the “Snowball Earth” hypothesis predicted when the entire oceans were frozen over for millions of years. Bao and his colleagues will still have to rule out other scenarios before calling their evidence a “smoking gun” for the theory. “But we have found a new way to look into the details of very old glaciations events that other approaches couldn’t,” said Bao. “Using this new parameter, we should be able to read from the rock record the dynamics of the glaciations as well as the impact to biosphere, atmosphere and hydrosphere of our Earth system.”

    http://www.physorg.com/news135005681.html

  • #2
    Crazy sh*t
    R.I.P. Michael Joseph Jackson

    Comment


    • #3
      wait a minute i thought the earth was only created 6000 years ago?!?!?!?!??!?!?!?!?!?!?
      Originally posted by FunkySuicideGirl
      Ima sucker when some suck my lip or bite in it
      Originally posted by Syko Squidge
      ^
      fuck off you gay piece of cunt
      Originally posted by Otto
      That shit is fuck,

      Comment


      • #4
        Makes sense now why my family crest got niggas ridin' tauntauns and shit.
        KING SHEAMUS

        Comment


        • #5
          Originally posted by franc34 View Post
          wait a minute i thought the earth was only created 6000 years ago?!?!?!?!??!?!?!?!?!?!?
          Are you serious?
          Kid Cudi
          =
          The Future

          Comment


          • #6
            Solar System is mad SEXY!
            I ain't a desperado I'm desperate to hit the lotto and meet a model who can put a smile on my face like Mcdonalds

            Comment


            • #7
              This shit Blows My High Really lol

              Comment


              • #8
                Originally posted by franc34 View Post
                wait a minute i thought the earth was only created 6000 years ago?!?!?!?!??!?!?!?!?!?!?
                It's roughly 1.3 billion years old.
                R.I.P. Michael Joseph Jackson

                Comment


                • #9
                  Originally posted by franc34 View Post
                  wait a minute i thought the earth was only created 6000 years ago?!?!?!?!??!?!?!?!?!?!?
                  Champagne for my real friends, Real pain for my sham friends.

                  Comment


                  • #10
                    but tha bible says so so it must be tru, morans
                    Originally posted by FunkySuicideGirl
                    Ima sucker when some suck my lip or bite in it
                    Originally posted by Syko Squidge
                    ^
                    fuck off you gay piece of cunt
                    Originally posted by Otto
                    That shit is fuck,

                    Comment


                    • #11
                      ^

                      hes got you there!

                      Comment


                      • #12
                        srsly i dnt no why ppl try and doubt the bable
                        Originally posted by FunkySuicideGirl
                        Ima sucker when some suck my lip or bite in it
                        Originally posted by Syko Squidge
                        ^
                        fuck off you gay piece of cunt
                        Originally posted by Otto
                        That shit is fuck,

                        Comment


                        • #13
                          Originally posted by franc34 View Post
                          srsly i dnt no why ppl try and doubt the bable
                          because christians say shit like "bable"
                          Just me and my daughter

                          Comment


                          • #14
                            tha bable is tha tru way of life boi
                            Originally posted by FunkySuicideGirl
                            Ima sucker when some suck my lip or bite in it
                            Originally posted by Syko Squidge
                            ^
                            fuck off you gay piece of cunt
                            Originally posted by Otto
                            That shit is fuck,

                            Comment


                            • #15
                              long ass time ago

                              Comment

                              Post ad widget 300x250

                              Collapse

                              LATEST POSTS

                              Collapse

                              Topics Statistics Last Post
                              Started by Deborahlanker, Today, 02:05 PM
                              0 responses
                              3 views
                              0 likes
                              Last Post Deborahlanker  
                              Started by Deborahlanker, Today, 12:16 PM
                              0 responses
                              4 views
                              0 likes
                              Last Post Deborahlanker  
                              Started by Deborahlanker, Today, 11:17 AM
                              0 responses
                              2 views
                              0 likes
                              Last Post Deborahlanker  
                              Started by Deborahlanker, Today, 10:37 AM
                              0 responses
                              8 views
                              0 likes
                              Last Post Deborahlanker  
                              Started by OlmanGrand, 04-17-2021, 04:12 AM
                              3 responses
                              20 views
                              0 likes
                              Last Post nicklloyd  
                              Started by cryptoengineuk, Today, 02:03 AM
                              0 responses
                              4 views
                              0 likes
                              Last Post cryptoengineuk  
                              Started by cryptoengineuk, Today, 02:01 AM
                              0 responses
                              3 views
                              0 likes
                              Last Post cryptoengineuk  
                              Started by taliagiselle, Today, 01:48 AM
                              0 responses
                              3 views
                              0 likes
                              Last Post taliagiselle  
                              Started by euikhgfgasw, Today, 01:01 AM
                              0 responses
                              2 views
                              0 likes
                              Last Post euikhgfgasw  
                              Started by Deborahlanker, Yesterday, 10:56 AM
                              0 responses
                              2 views
                              0 likes
                              Last Post Deborahlanker  
                              Working...
                              X