Origins TheologyForum for the discussion of Creation Science (Young/Old) vs Theistic Evolution. Discussion of Atheistic Evolution should be taken to the Discussion and Debate forums.
Are mammilary coatings formed on surfaces which in contact with water for a prolongued period of time?
Seems so.
Can Molal elaborate, maybe? How are mammilary coatings formed, exactly? They sound like precipitates that form on rocks marking the surface of the water table. I doubt very much if you would see these forming in the turbulent waters that, according to the neo-creationists, carved the Grand Canyon.
__________________ "There is evidence for evolution, gobs and gobs of it. It is not just speculation or a faith choice or an assumption or a religion. It is a productive framework for lots of biological research, and it has amazing explanatory power. There is no conspiracy to hide the truth about the failure of evolution. There has really been no failure of evolution as a scientific theory. It works, and it works well." -- creation scientist Dr. Todd Wood
ou can't get caves forming in the wall of a canyon that hasn't even formed yet, juvie.
I can't believe you teach geology.
I assume the rock existed before the canyon. Should that be the case? So the cave could be made in between the time of the rock and the canyon.
What "favourable chemistry"? Provide an example, because it strikes me you're just making things up to save face.
Yes, it is hypothetical (who knows what exactly happened?). But it is not that hard to spell out the favorable conditions. It is simply an environment in which carbonate is favorable to precipitate, such as: saturated Ca, alkaline solution, warm T, etc. (check your geochem book. Did you skip that course?).
Seems so.
Can Molal elaborate, maybe? How are mammilary coatings formed, exactly? They sound like precipitates that form on rocks marking the surface of the water table. I doubt very much if you would see these forming in the turbulent waters that, according to the neo-creationists, carved the Grand Canyon.
Actually Mallon hit the nail on the head! Mammillary coatings are coatings on sedimentary particles that consists of carbonate precipitate.
Here are a couple of links to articles, abstracts, etc. for further reading:
So I have to ask again: How do neo-creationists explain the presence of mammilary precipitates in the caves of the Grand Canyon?
__________________ "There is evidence for evolution, gobs and gobs of it. It is not just speculation or a faith choice or an assumption or a religion. It is a productive framework for lots of biological research, and it has amazing explanatory power. There is no conspiracy to hide the truth about the failure of evolution. There has really been no failure of evolution as a scientific theory. It works, and it works well." -- creation scientist Dr. Todd Wood
So I have to ask again: How do neo-creationists explain the presence of mammilary precipitates in the caves of the Grand Canyon?
How is this question relevant to the origin of the Grand Canyon? Every cave has some carbonate deposits on its roof. It has nothing to do with the mechanical process of erosional.
So basically they're formed by slow moving water which contains calcium carbonate or something similar, and when that water comes into contact with air as it would do at the water table, a chemical reaction occurs causing precipitation of the calcium carbonate. The fact that these coatings are found at different levels of the canyon, from the highest to the lowest is evidence of a slow and gradual erosion and lowering of the level of the river.
If a flood had caused the canyon to form in a very short space of time I would expect that there would be no evidence of ancient water tables in the lower parts of the canyon, but only in the highest caves
It's now up to the creationists here to attempt to explain how these mamilliary coatings could form over days/weeks.
So basically they're formed by slow moving water which contains calcium carbonate or something similar, and when that water comes into contact with air as it would do at the water table, a chemical reaction occurs causing precipitation of the calcium carbonate. The fact that these coatings are found at different levels of the canyon, from the highest to the lowest is evidence of a slow and gradual erosion and lowering of the level of the river.
If a flood had caused the canyon to form in a very short space of time I would expect that there would be no evidence of ancient water tables in the lower parts of the canyon, but only in the highest caves
It's now up to the creationists here to attempt to explain how these mamilliary coatings could form over days/weeks.
Well done MinervaMac! An excellent description.
reps
__________________
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. dir="ltr">
I'll be more enthusiastic about encouraging thinking outside the box when there's evidence of any thinking going on inside it.
Linear Mode
