Editing 2013: Rock
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.
The edit can be undone.
Please check the comparison below to verify that this is what you want to do, and then save the changes below to finish undoing the edit.
Latest revision | Your text | ||
Line 11: | Line 11: | ||
Megan either knows enough about geology to tell on sight how this particular rock formed, or has brought this rock from a collection. Alternatively she’s simply guessing. Despite admiring its formation, all she wants is to use it as a skipping stone to give it "a weird day in its life" (similar to [[325: A-Minus-Minus]]), and possibly confuse future geologists. | Megan either knows enough about geology to tell on sight how this particular rock formed, or has brought this rock from a collection. Alternatively she’s simply guessing. Despite admiring its formation, all she wants is to use it as a skipping stone to give it "a weird day in its life" (similar to [[325: A-Minus-Minus]]), and possibly confuse future geologists. | ||
− | Megan provides three pieces of information about the rock: It formed at the south pole, during an ice age, just before multicellular life developed. Unfortunately, due to disagreements among geologists and | + | Megan provides three pieces of information about the rock: It formed at the south pole, during an ice age, just before multicellular life developed. Unfortunately, due to disagreements among geologists and paleontologists about when exactly the first multicellular life emerged it is unclear which time Megan refers to - and consequently where she is and what kind of rock she is holding. There are two possibilities: |
# The {{w|Francevillian biota}}, living about 2.1 billion years ago, has been proposed as the first multicellular life. If Megan subscribes to this theory, then the Ice age just before would be the {{w|Huronian glaciation}} which extended from 2.4 to 2.1 billion years ago. The land which was at the South pole at that time would eventually [http://www.youtube.com/watch?v=UwWWuttntio become part of Africa]. | # The {{w|Francevillian biota}}, living about 2.1 billion years ago, has been proposed as the first multicellular life. If Megan subscribes to this theory, then the Ice age just before would be the {{w|Huronian glaciation}} which extended from 2.4 to 2.1 billion years ago. The land which was at the South pole at that time would eventually [http://www.youtube.com/watch?v=UwWWuttntio become part of Africa]. |