Peanut Gallery - What variety of creationist is Buzsaw? (Minnemooseus and Buzsaw)

Obviously Buz realizes that dating the rocks in his wall will produce an answer that's far older than the date his wall was constructed, and therefore radiometric dating of rocks can produce a date that's far older than the date they were formed.The problem with this scenario is that formation of igneous and metamorphic rocks is not at all analogous to assembling a rock wall; we know how they are formed and modified and how that affects or does not affect their radiometric dates. Formation of sedimentary rocks can be thought of as somewhat analogous to assembling a wall, and that's why we don't do radiometric dates on sedimentary rocks (except for a few cases in which we date the "mortar" that holds the grains together).

Of course strata is the wrong word; some strata are sedimentary and some strata are not.Nope, the old creationist PRATT "layers are usually dated by the fossils in them and the fossils are dated by the layers" just ain't so. Sedimentary rocks are dated by their relationship with igneous and metamorphic rocks. As a simple example, a sedimentary layer above a 100 million year old igneous layer and below a 90 million year old igneous layer¹, is between 90 and 100 million years old, no dating-by-the-fossils involved. There are lots of other scenarios which don't involve fossils. Index fossils are used to correlate between geographically separated layers. An index fossil is one that is easily identified and only appears in rocks spanning a small period of time, as determined by dating igneous and metamorphic layers without using any fossils. If a sedimentary layer in the U.S contains a particular index fossil and lies above a 100 million year old igneous layer and below a 90 million year old igneous layer, and a similar layer in Latvia contains the same index fossil, the layer in Latvia is between 90 and 100 million years old. But that layer in Latvia hasn't been dated by the index fossil, its similar-age relationship to another layer has been established by the index fossil.Sorry, Buz, you've swallowed yet another canard.--
¹And with no signs of the rare and easily identifiable case where a set of layers is overturned.

The analogy is erroneous. Consider your rock wall sitting on a poured concrete floor and supporting a poured concrete ceiling, The floor dates at 75 years old, the ceiling dates at 60 years old, the rocks in the wall date to 120 million years old, and we can tell from the construction of the wall that it's made of old rocks created long before the wall was built. How old is the wall?Oh, and the igneous and metamorphic rocks we do date aren't deposited by floods or any form of water. We can tell. Of course that pattern is not what is actually found in the geologic record, with elephants and blue whales found above the first birds and way above the first flying insects.

If the wall is made of sedimentary rocks, no, it won't date to the time the sediment was deposited. If it's made of igneous rocks those rocks will date to the time they solidified. Actually, yes. BUT THAT"S NOT ANALOGOUS TO HOW WE DATE SEDIMENTARY ROCKS!!!!!!!!!one11one1shift!.WE DON"T DATE SEDIMENTARY ROCKS BY TRYING TO DATE THEM DIRECTLY. WE DATE SEDIMENTARY ROCKS BY THEIR RELATIONSHIP WITH IGNEOUS AND METAMORPHIC ROCKS.Which both I and Minne have already explained.Many times.My concrete analogy is analogous to how we date sedimentary rocks. Your analogy isn't.Buzzie-poo, if a sedimentary layer is sandwiched between two igneous layers, and the lower igneous layer dates to 100 million years, and the upper igneous layer dates to 90 million years, do you really think we can't conclude that the sedimentary layer is between 90 and 100 million years old?Forget the analogies and address the reality.Edited by JonF, : No reason given.Edited by JonF, : No reason given.

No. No. Example. plesiosaurs and dolphins. Same size, same shape, same habitat, but never found together in the fossil record.Also Stegosaurs and elephants. Same size, same environment, same diet, never found anywhere near each other in the fossil record.There's lots of examples if you actually look rather than makig stuff up.Hey, Buz, while you're here, if a sedimentary layer is sandwiched between two igneous layers, and the lower igneous layer dates to 100 million years, and the upper igneous layer dates to 90 million years, do you really think we can't conclude that the sedimentary layer is between 90 and 100 million years old?