Summations Only

Another detailed photo from Siccar Point. And the caption reads:

Afraid the photograph is illegible, don't know what I'm looking at.The greywacke section would have eroded because it's upended, exposing broken-off parts to the friction with the upper layer, the red sandstone, and that section isn't eroded, or is less eroded, because it would have presented a flat smooth surface to the lower layers.

I know and it's irrelevant to my point. What I meant was that it is not continuing upward from the Geo Column. Where it "goes" is not the point. It has to continue the Geologic Column and it can't do that except where the Geo Column exists AS a column. This is silly, this is gobbledygook. The Geologic Column IS a stack of horizontal strata, that is what it IS. If you want to say the Time Scale can continue anywhere that would be more reasonable because at least time doesn't stop (although it's so closely tied to the physical strata it really can't be separated), but physical formations can stop and the Geo Column has stopped wherever it is no longer a horizontal stack of layers but is eroded, buckled and so on.

The problem is that nobody can figure out what the hell your point is.

Of course not. This is a detailed photo.What you are looking at is Old Red Sandstone on the right and Silurian graywackes on the left. There is a cobble of the graywacke within the sandstone. This shows that there was a period of erosion between the two units. That period is constrained to the period after the 425ma Silurian sediments and before the Devonian sandstone at 345ma.If you read the caption, that would help. Or maybe not... I would find your explanation of the irregular surface and the presence of rounded cobbles to be interesting in that case. No one says the sandstone is eroded (until now). It was deposited on the unconformity. The surface is clearly not smooth as various photos and diagrams have indicated to you.Here is a video of the unconformity with some close up images of the contact.https://www.youtube.com/watch?v=oQzmfcUKSFMEdited by edge, : No reason given.

For one thing there aren't any of those little nubbin holes available except on the true original horizontal surface.

So let's talk about ordinary wooden blocks, simple cubes with no little nubbin holes. What prevents me from stacking and restacking the blocks ad infinitum? How do the blocks even know whether they're being stacked on the "original" layer? And why would they care?

Actually, it is because it shows that the layers are not 'flat and continuous'. Bu it does continue at another location. Yes, at those locations the geological column has stopped. At least temporarily. It has continued in other places.

Edited by Faith, : No reason given.

They'll fall off the curves, end up in the dips.

Yes indeed, they will. It's called "erosion". That's how the surfaces get flat if they weren't initially deposited flat.So, since you agree that I can deposit more blocks on top of the Block Column, what's your idea about the geological column "stopping"? The grains that make it up are just smaller versions of my blocks.

Have to be or they aren't the Geo Column. So everyone says but hasn't proved. Must continue AS the Geo Column and that doesn't happen. Assertion assertion assertion, no reality.

So you have no intlligent response?What's the difference? If I can put a block on top of the pile - even if it slips to a new location - why can't natural forces put a grain of sand on top of the pile - even if it slips to a new location?

Faith, no matter how you bray on about it, that sandstone is not sheared by faulting along the unconformity, just as the Tapeats is not sheared in the Grand Canyon.