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Author Topic:   Siliceous Ooze And Siliceous Rocks
Dr Adequate
Member (Idle past 284 days)
Posts: 16113
Joined: 07-20-2006


Message 1 of 3 (554560)
04-08-2010 11:40 PM


Of all the subjects in sedimentology, this is the one where I've found it hardest to get any solid information, especially such as might be suited for beginners.
I hope that you don't think that I'm just asking you to do my homework for me, I've been googling around this subject literally for weeks. And yet some things are still slightly beyond my grasp.
Let's start with a (hopefully) easy question (I shall number them for your convenience, this is number 1).
(1) When I first came across the term "radiolarian chert" I supposed that it was a term analogous to "oolitic limestone": i.e. the word radiolarian meant that in thin section one could see that it was composed of radiolarians. But I haven't found anyone saying so directly.
Gradually, by observing usage, I came to suspect that I was putting the emphasis in the wrong place and that the word chert implied that sufficient recrystalization had taken place that no radiolarian structures were to be seen any more; and that the radiolarian origin was a matter of inference rather than observation. But I can't find anyone directly stating that either.
All anyone tells me is that it's chert of radiolarian origins, but not how it is so identified.
I could make similar remarks about diatomaceous chert (mutatis mutandis).
Can anyone help me with this? Thank you.

AdminSlev
Member (Idle past 4640 days)
Posts: 113
Joined: 03-28-2010


Message 2 of 3 (554568)
04-09-2010 2:28 AM


Hi,
It would be great that if this has any link to the Creo/Evo debate (particularly the flood) that you could mention how exactly during the course of discussion.
If it does not well, I hope you get the answers you are looking for.

AdminSlev
Member (Idle past 4640 days)
Posts: 113
Joined: 03-28-2010


Message 3 of 3 (554570)
04-09-2010 2:28 AM


Thread Copied to Geology and the Great Flood Forum
Thread copied to the Siliceous Ooze And Siliceous Rocks thread in the Geology and the Great Flood forum, this copy of the thread has been closed.

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