I was going to a video, but I'm too ugly. So this is a photo essay on the rock that is in the news. You can decide the political fate.
There it is, exposed in a valley in Toronto. Why are we up in Toronto, when that nasty rock is destroying in the Niagara Tunnel? Ah, the wonders of geology. That rock lies in thick beds which tilt up towards the north-east. That means it's very deep in Niagara, but outcrops in Toronto! If you want to learn your Queenston Shale, it's here.
I've just decided to call this 'Popcorn Rock', because it is completely different when it is down in its natural state. When it comes up, it 'pops' like this, and weathers rapidly.
And look at this! The nasty vertical fractures that hit everybody by surprise. They are invisible when the rock is all compressed in its natural state, but they come out when the rock is stress relieved, such as you would get when boring a tunnel. Here, the insitu stresses are relieved by a stream cutting.
Queenston Shale has caused endless problems in engineering geology. Here it weathers quickly, causing slope stability problems (cd's for scale :).
I love the fossils: clams and worms. (Hint for Canadian Science Ministers: We went with the worms!).
This little guy laughs at all those who didn't know about this shale.