What triggered the Cambrian Explosion? with Professor Rachel Wood
The origin and rise to dominance of animals - the Cambrian Explosion - from about 575 to 520 Million years ago was a revolutionary event on Earth. But why, and how, this happened at this time remains unresolved. Here I will explore two possible triggers for this event - a rise of oxygen in the atmosphere and in the oceans, and changes in the chemistry of sea water. I will explore these using examples from insight gained from fieldwork in Siberia and Namibia. We have made great strides over the last decade in understanding how changes in the earth system itself may have enabled the rise of complex life, but there is still much we have left to understand about this extraordinary event.
Rachel Wood has been Professor of Carbonate Geoscience at the University of Edinburgh since 2012. She has a first degree in Geology/Zoology, and a PhD in Geology. She held research fellowships at the Free University, Berlin, and the University of Cambridge, and worked in industry for 5 years before returning to academia in
1 view
5
6
2 months ago 00:10:44 1
Two theories for an unsolved Soviet mystery
2 months ago 00:10:03 1
SHOCK Confession Of New Syrian Leader Triggers Global Alarm!
2 months ago 01:03:33 1
I was sex trafficked by GirlsDoPorn Pt.1 || Consider Before Consuming Podcast
2 months ago 01:24:29 1
【Full Album】Monarch of Monsters
4 months ago 00:04:18 1
Red Hot Chili Peppers - Otherside [Official Music Video] [HD UPGRADE]
4 months ago 00:05:50 34
How To Use Nicky Romero Kickstart 2 in 5 Minutes
4 months ago 00:11:49 1
Dave Chappelle DESTROYED Woke Culture And Hollywood Is FUMING
4 months ago 01:25:49 1
Cascadia MEGAQUAKE: The Future Mega-Seaquake That Will Destroy Westcoast America!
4 months ago 00:10:13 1
Best GoPro Gimbal that works with Media Mod ? Inkee Falcon Plus Review
4 months ago 01:18:33 1
Is Blackrock bankrolling the WAR in Ukraine & Middle East?
4 months ago 00:31:01 1
Poltergeist or Alien? What We Caught on Camera Will Shock You!
4 months ago 00:35:46 1
Boeing: The perfect story of what’s wrong with America’s economy? | Gautam Mukunda
4 months ago 00:17:43 1
ASMR Role Play | Ear Exam with Breathy Whispers “GOOD“ “OKAY“ and “HMM“ Deep in your Ears
4 months ago 00:02:11 1
Tripper - “Addicted“ Thirty Something Records - Official Music Video
4 months ago 00:24:06 1
ASMR ⋆.˚🦋༘⋆ close whispers,mic brushing,pampering,mouth sounds + hand sounds !! (Michael’s CV)