HomeLatest ThreadsGreatest ThreadsForums & GroupsMy SubscriptionsMy Posts
DU Home » Latest Threads » Forums & Groups » Main » General Discussion (Forum) » From The BBC Travel: "Str...

Mon Jan 18, 2021, 09:02 AM

From The BBC Travel: "Stromatolites: The Earths oldest living lifeforms" (...)

I'm always on the lookout for information that provides perspective and this is good!

From Article: snip

"Stromatolites are living fossils and the oldest living lifeforms on our planet. The name derives from the Greek, stroma, meaning “mattress”, and lithos, meaning “rock”. Stromatolite literally means “layered rock”. The existence of these ancient rocks extends three-quarters of the way back to the origins of the Solar System.

With a citizen scientist’s understanding, stromatolites are stony structures built by colonies of microscopic photosynthesising organisms called cyanobacteria. As sediment layered in shallow water, bacteria grew over it, binding the sedimentary particles and building layer upon millimetre layer until the layers became mounds. Their empire-building brought with it their most important role in Earth’s history. They breathed. Using the sun to harness energy, they produced and built up the oxygen content of the Earth’s atmosphere to about 20%, giving the kiss of life to all that was to evolve.

Living stromatolites are found in only a few salty lagoons or bays on Earth. Western Australia is internationally significant for its variety of stromatolite sites, both living and fossilised. Fossils of the earliest known stromatolites, about 3.5 billion years old, are found about 1,000km north, near Marble Bar in the Pilbara region. With Earth an estimated 4.5 billion years old, it’s staggering to realise we can witness how the world looked at the dawn of time when the continents were forming. Before plants. Before dinosaurs. Before humans."

much more at link http://www.bbc.com/travel/story/20210117-stromatolites-the-earths-oldest-living-lifeforms?referer=https%3A%2F%2Fwww.bbc.com%2Fnews%2Fworld

4 replies, 697 views

Reply to this thread

Back to top Alert abuse

Always highlight: 10 newest replies | Replies posted after I mark a forum
Replies to this discussion thread
Arrow 4 replies Author Time Post
Reply From The BBC Travel: "Stromatolites: The Earths oldest living lifeforms" (...) (Original post)
abqtommy Jan 18 OP
lastlib Jan 18 #1
abqtommy Jan 18 #2
BadgerKid Jan 18 #3
Wounded Bear Jan 18 #4

Response to abqtommy (Original post)

Mon Jan 18, 2021, 09:30 AM

1. Fascinating!

I love "sciency" stuff!

Reply to this post

Back to top Alert abuse Link here Permalink


Response to abqtommy (Original post)

Mon Jan 18, 2021, 10:19 AM

2. K&R

Reply to this post

Back to top Alert abuse Link here Permalink


Response to abqtommy (Original post)

Mon Jan 18, 2021, 10:20 AM

3. It's old news (no pun), but damn fascinating.

Thanks

Reply to this post

Back to top Alert abuse Link here Permalink


Response to abqtommy (Original post)

Mon Jan 18, 2021, 11:23 AM

4. Thanks for the link! nt

Reply to this post

Back to top Alert abuse Link here Permalink

Reply to this thread