Randall Carlson

Glacio fluvial basalt erratic on the Waterville Plateau. So you see, the next slide should show you, yeah, and you can see the human figure there next to it. And see, this is, and you see it sitting in this mound of debris? Well, that's called a berg mound, because if you've got an iceberg that's coming from a glacier, that's really dirty ice. It's not clean ice.

Glacio fluvial basalt erratic on the Waterville Plateau. So you see, the next slide should show you, yeah, and you can see the human figure there next to it. And see, this is, and you see it sitting in this mound of debris? Well, that's called a berg mound, because if you've got an iceberg that's coming from a glacier, that's really dirty ice. It's not clean ice.

Glacio fluvial basalt erratic on the Waterville Plateau. So you see, the next slide should show you, yeah, and you can see the human figure there next to it. And see, this is, and you see it sitting in this mound of debris? Well, that's called a berg mound, because if you've got an iceberg that's coming from a glacier, that's really dirty ice. It's not clean ice.

Now, let's suppose you've got a nice chunk of ice that's floating in the melt water, doesn't have the boulder on it, But when that chunk of ice strands, like it's being swept along, right? Then the water begins to subside. The ice will strand on the land. It'll come to ground. Then when it melts, it leaves behind, it's actually called a berg mound, right?

Now, let's suppose you've got a nice chunk of ice that's floating in the melt water, doesn't have the boulder on it, But when that chunk of ice strands, like it's being swept along, right? Then the water begins to subside. The ice will strand on the land. It'll come to ground. Then when it melts, it leaves behind, it's actually called a berg mound, right?

Now, let's suppose you've got a nice chunk of ice that's floating in the melt water, doesn't have the boulder on it, But when that chunk of ice strands, like it's being swept along, right? Then the water begins to subside. The ice will strand on the land. It'll come to ground. Then when it melts, it leaves behind, it's actually called a berg mound, right?

And you can find hundreds, maybe even thousands of these berg mounds strewn all through the pathways of the floodwaters. Some of them have giant erratics. Most of them don't. Most of them are just a mound of debris. So it's just the dirt that was all inside of the ice. In the ice itself, yes. Wow. But that doesn't explain how you get a 10,000-ton boulder on it. Right.

And you can find hundreds, maybe even thousands of these berg mounds strewn all through the pathways of the floodwaters. Some of them have giant erratics. Most of them don't. Most of them are just a mound of debris. So it's just the dirt that was all inside of the ice. In the ice itself, yes. Wow. But that doesn't explain how you get a 10,000-ton boulder on it. Right.

And you can find hundreds, maybe even thousands of these berg mounds strewn all through the pathways of the floodwaters. Some of them have giant erratics. Most of them don't. Most of them are just a mound of debris. So it's just the dirt that was all inside of the ice. In the ice itself, yes. Wow. But that doesn't explain how you get a 10,000-ton boulder on it. Right.

So how do you get a 10,000-ton boulder on it? Well, that's... Funny you should ask. Well, this is okay.

So how do you get a 10,000-ton boulder on it? Well, that's... Funny you should ask. Well, this is okay.

So how do you get a 10,000-ton boulder on it? Well, that's... Funny you should ask. Well, this is okay.

It's a bit of a tale.

It's a bit of a tale.

It's a bit of a tale.

Okay, so we've seen the Great Cataract Complex at Dry Falls. Okay, let's go to the next one there. Ryan's laughing because I'm not- Okay, this is going to give you some good sense of scale here. You ever been to Niagara? Okay, so you've seen, this is Horseshoe Falls. Now, notice the horseshoe shape. Yes. Right? This alcove, it's called, the alcove. Well, this has to do with water flow.

Okay, so we've seen the Great Cataract Complex at Dry Falls. Okay, let's go to the next one there. Ryan's laughing because I'm not- Okay, this is going to give you some good sense of scale here. You ever been to Niagara? Okay, so you've seen, this is Horseshoe Falls. Now, notice the horseshoe shape. Yes. Right? This alcove, it's called, the alcove. Well, this has to do with water flow.

Okay, so we've seen the Great Cataract Complex at Dry Falls. Okay, let's go to the next one there. Ryan's laughing because I'm not- Okay, this is going to give you some good sense of scale here. You ever been to Niagara? Okay, so you've seen, this is Horseshoe Falls. Now, notice the horseshoe shape. Yes. Right? This alcove, it's called, the alcove. Well, this has to do with water flow.

And it's basically, think of it this way. Look at my hands here. You've got a flow of water, right? The most friction is along the channel walls. That slows the water down. Right here in the middle, the water's moving faster. So what happens is you get what's called the velocity curve.

And it's basically, think of it this way. Look at my hands here. You've got a flow of water, right? The most friction is along the channel walls. That slows the water down. Right here in the middle, the water's moving faster. So what happens is you get what's called the velocity curve.