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Earl Detra
First of all, observation and calculations are two different things. The latter may be based on the former, but that presumes both uniformitarianism and gradualism where the trenches are concerned.
Well, as far as I can see uniformitarianism is still valid. I mean how do you live in a world where you cannot be sure that the sun will 'rise' tomorrow? Why can we not assume that processes occurring today are no different from those of the past? Why call upon processes and mechanisms that have never been seen and really have no evidence in the geological record?
In addition, there are some real problems with the current explanations, as I presume you know. We are not seeing what we should see in terms of types of depositional layering under the current evolutionary model. If you need examples, I’ll ask Barry to come in on this a bit, as this is his field.
I am not aware of any significant problems with mainstream geological explanations of what happens at trenches.
If you have trouble with the idea of the Himalayas still rising slightly as opposed to the enormous amount of runoff which washes away topsoil from mountain valleys yearly, I don’t know what to tell you. They both happen. Erosion is far more prevalent and faster than either mountain rise or soil formation. And that is the point I was making.
Well, then according to you, there never should have been ANY mountains if erosion is faster than uplift. Do I understand you correctly on this? Do you understand that there are different rates of erosion and soil formation? As far as I can see, soil formation argues quite effectively for long ages rather than rapid formation of the earth's surface.
You asked when the last time a storm washed away soil in my yard. Since there is only a ten foot drop, ‘catty-corner’ in my one acre, and that all but the old paddock area is planted or compost heaps or house and patio, I would have to say it hasn’t happened to any appreciable degree. I’m not sure what this has to do with spring runoffs and glacial melt runoff through mountain valleys, however, which have steep drops and much more water going through them! We get about 17 inches a year…
Then erosion is not occurring very rapidly at your house. How long do you think it took for your present landforms to develop?
You then asked why I would assume erosion and uplift have been constant for so long and yet the speed of light is variable. I think you are totally confused regarding things I have been trying to present. First, I don’t assume erosion and uplift have been constant ‘for so long.’ I think the data and evidence point to massive catastrophes which would have had a lot to do with both. I also think the data and evidence point to a changed speed of light since the beginning. In both cases I am depending, however, on data and evidence, and not on presuppositions.
I believe in catastrophes also. I think they are largely responsible for what we see. My point is that there are long periods of little change in between the catastrophes.
And in the presence of data and evidence, hypotheses can be formed. Just-so stories are not needed.
I agree. That is why I cannot understand why you rely upon them.
And regardless of your red herring about argon and biotite, my point still stands that we do not know the original ratios of various elements in rocks.
Then you missed the point completely. We either know this information or we do not need it in some cases.
We presume when we see a daughter element that only exists as an isotope of radio-decay, that there was none to begin with.
I'm not sure why you have a problem with this. The evidence for this assumption is empirical.
And that is certainly a fair and data-backed assumption. But there are a number of other daughter elements which are indistinguishable from naturally occurring isotopes.
Still not a problem.
And that means very simply we must make presuppositions based on current models regarding the original state. Those presuppositions and current models may not be correct.
Except that we have independent evidence that they are correct. If you were right in you analysis there should be virtually NO dates that are concordant, but there are. Why is this? Could it be that the assumptions are correct?
I was taught, and I taught also, that challenging currently accepted theories was part of good science. That solid theories should be able to stand up to examination. Evolution has been accepted, examined, and found wanting.
By whom? There are plenty of people who do not feel this way.
What has happened, however, is that because it was accepted, the idea that it could be found wanting seems to be anathema.
Not at all. It is just that the tests have not shown evolution to be lacking. After so many years, it is time to move on. Accept the assumption and if it is incorrect we will know shortly.
Nor is it people ‘out of the field’ who are finding the radiometric assumptions currently prevailing to be wanting. There are experts in the field who have questions as well, and are examining the data with a mind to accepting what it might indicate rather than what presuppositions demand it indicates.
Oh, I have reservations about any date as well. I question every one. The problem is that this does not invalidate the message. We could pretend that the systematics mean nothing or we can use the data to advance science. Your choice.
That, by the way, in my personal estimation, takes a lot of nerve and a very determined person who is probably independently funded in some way to do that. It’s really hard to buck the system, even when you are sure you are right.
Sort of like Darwin, eh?
I had to laugh when you said, ”If there was evidence for creationism, the pressure to publish and obtain credit would be vicious.” What do you think has been happening in the past thirty years or so? GRI publishes its own material. Who else will? And they are quite respected professionally – strange thing! The two creation technical journals (CRSQ and TJ) both have come up with some interesting challenges, although I will admit with the rest of you that I think GRI holds itself to a higher standard for publication. Nevertheless, these journals and publications came into being for the express purpose of getting material refused by the evolutionist journals out on the table for discussion and consideration.
These reservations have been addressed in the mainstream. You have simply decided to ignore them.
My point here was that if there was credible evidence it would be recognized by mainstream scientists and published in mainstream journals. Mainstreamers would be fighting for the recognition to publish ground-breaking material. But there is no such evidence.
Nor does this have ANYTHING to do with your question “would you have an attorney conduct brain surgery?” The scientists challenging evolution are scientists working in their own fields who have been brave enough to finally say, “Wait a minute – this is not working!”
Actually, it does. Most proponents for creationism usually end up outside their field, making pronouncements that make no sense whatsoever.
Now, you said some interesting things in response to my questions regarding K/Ar dating in modern lavas. Here is the quote from above:
Nevertheless, when you said that the argon differences makes young rocks un-datable, I would wonder how many ‘old’ lavas are not really old, but presumed that way because those dates are showing up with false ages…?
I think I said that the argon differences are too difficult to measure. This makes them undatable by current methods and any minor differences could be attributed to very miniscule contamination effects. But yes, I wonder too, how often my watch is off by several minutes. But I still use it because I am not an absolutist.
And, finally, what ON EARTH does body plan have to do with a faster light speed???
Well, being a dumb geologist, it would seem to me that a highly energetic environment where the speed of light is thousands (or millions?) of time faster than present, that the lifeforms would probably be very different from what we see to day. Can you imagine the energy/radiation released by radiometric decay if lightspeed varied that much? Seems kind of weird to me.
I really think you have not read the work on this at all. Why don’t you?
My time is limited. When respected scientists in the field verify that this is even possible, I will take the time. Until then, I really have more pressing matters
First of all, observation and calculations are two different things. The latter may be based on the former, but that presumes both uniformitarianism and gradualism where the trenches are concerned.
Well, as far as I can see uniformitarianism is still valid. I mean how do you live in a world where you cannot be sure that the sun will 'rise' tomorrow? Why can we not assume that processes occurring today are no different from those of the past? Why call upon processes and mechanisms that have never been seen and really have no evidence in the geological record?
In addition, there are some real problems with the current explanations, as I presume you know. We are not seeing what we should see in terms of types of depositional layering under the current evolutionary model. If you need examples, I’ll ask Barry to come in on this a bit, as this is his field.
I am not aware of any significant problems with mainstream geological explanations of what happens at trenches.
If you have trouble with the idea of the Himalayas still rising slightly as opposed to the enormous amount of runoff which washes away topsoil from mountain valleys yearly, I don’t know what to tell you. They both happen. Erosion is far more prevalent and faster than either mountain rise or soil formation. And that is the point I was making.
Well, then according to you, there never should have been ANY mountains if erosion is faster than uplift. Do I understand you correctly on this? Do you understand that there are different rates of erosion and soil formation? As far as I can see, soil formation argues quite effectively for long ages rather than rapid formation of the earth's surface.
You asked when the last time a storm washed away soil in my yard. Since there is only a ten foot drop, ‘catty-corner’ in my one acre, and that all but the old paddock area is planted or compost heaps or house and patio, I would have to say it hasn’t happened to any appreciable degree. I’m not sure what this has to do with spring runoffs and glacial melt runoff through mountain valleys, however, which have steep drops and much more water going through them! We get about 17 inches a year…
Then erosion is not occurring very rapidly at your house. How long do you think it took for your present landforms to develop?
You then asked why I would assume erosion and uplift have been constant for so long and yet the speed of light is variable. I think you are totally confused regarding things I have been trying to present. First, I don’t assume erosion and uplift have been constant ‘for so long.’ I think the data and evidence point to massive catastrophes which would have had a lot to do with both. I also think the data and evidence point to a changed speed of light since the beginning. In both cases I am depending, however, on data and evidence, and not on presuppositions.
I believe in catastrophes also. I think they are largely responsible for what we see. My point is that there are long periods of little change in between the catastrophes.
And in the presence of data and evidence, hypotheses can be formed. Just-so stories are not needed.
I agree. That is why I cannot understand why you rely upon them.
And regardless of your red herring about argon and biotite, my point still stands that we do not know the original ratios of various elements in rocks.
Then you missed the point completely. We either know this information or we do not need it in some cases.
We presume when we see a daughter element that only exists as an isotope of radio-decay, that there was none to begin with.
I'm not sure why you have a problem with this. The evidence for this assumption is empirical.
And that is certainly a fair and data-backed assumption. But there are a number of other daughter elements which are indistinguishable from naturally occurring isotopes.
Still not a problem.
And that means very simply we must make presuppositions based on current models regarding the original state. Those presuppositions and current models may not be correct.
Except that we have independent evidence that they are correct. If you were right in you analysis there should be virtually NO dates that are concordant, but there are. Why is this? Could it be that the assumptions are correct?
I was taught, and I taught also, that challenging currently accepted theories was part of good science. That solid theories should be able to stand up to examination. Evolution has been accepted, examined, and found wanting.
By whom? There are plenty of people who do not feel this way.
What has happened, however, is that because it was accepted, the idea that it could be found wanting seems to be anathema.
Not at all. It is just that the tests have not shown evolution to be lacking. After so many years, it is time to move on. Accept the assumption and if it is incorrect we will know shortly.
Nor is it people ‘out of the field’ who are finding the radiometric assumptions currently prevailing to be wanting. There are experts in the field who have questions as well, and are examining the data with a mind to accepting what it might indicate rather than what presuppositions demand it indicates.
Oh, I have reservations about any date as well. I question every one. The problem is that this does not invalidate the message. We could pretend that the systematics mean nothing or we can use the data to advance science. Your choice.
That, by the way, in my personal estimation, takes a lot of nerve and a very determined person who is probably independently funded in some way to do that. It’s really hard to buck the system, even when you are sure you are right.
Sort of like Darwin, eh?
I had to laugh when you said, ”If there was evidence for creationism, the pressure to publish and obtain credit would be vicious.” What do you think has been happening in the past thirty years or so? GRI publishes its own material. Who else will? And they are quite respected professionally – strange thing! The two creation technical journals (CRSQ and TJ) both have come up with some interesting challenges, although I will admit with the rest of you that I think GRI holds itself to a higher standard for publication. Nevertheless, these journals and publications came into being for the express purpose of getting material refused by the evolutionist journals out on the table for discussion and consideration.
These reservations have been addressed in the mainstream. You have simply decided to ignore them.
My point here was that if there was credible evidence it would be recognized by mainstream scientists and published in mainstream journals. Mainstreamers would be fighting for the recognition to publish ground-breaking material. But there is no such evidence.
Nor does this have ANYTHING to do with your question “would you have an attorney conduct brain surgery?” The scientists challenging evolution are scientists working in their own fields who have been brave enough to finally say, “Wait a minute – this is not working!”
Actually, it does. Most proponents for creationism usually end up outside their field, making pronouncements that make no sense whatsoever.
Now, you said some interesting things in response to my questions regarding K/Ar dating in modern lavas. Here is the quote from above:
There were fewer methods.You said K/Ar dating was known not to be accurate/applicable to modern lavas.
Correct.
A couple of questions:
1. When you say that this was known “generations” ago, I am curious as to what your definition of a generation is? When do you think this became known? When do you think this became accepted?
Well, I was in school 20 years ago, and by then it was known. I presume it was known well before that. We discussed the pitfalls of all radiometric methods (there were less of them then). One of those pitfalls is that the precision of measuring small differences in argon isotope contents makes young rocks virtually undateabel by this method.
I find it fascinating, first of all, that you mention there were fewer pitfalls known in radiometric dating twenty years ago than now. Or were you talking about types of radiometric dating? I couldn’t tell.
Nevertheless, when you said that the argon differences makes young rocks un-datable, I would wonder how many ‘old’ lavas are not really old, but presumed that way because those dates are showing up with false ages…?
I think I said that the argon differences are too difficult to measure. This makes them undatable by current methods and any minor differences could be attributed to very miniscule contamination effects. But yes, I wonder too, how often my watch is off by several minutes. But I still use it because I am not an absolutist.
I think you are missing something. You asked for other methods to date recent lavas. I said to use artifacts or fossils. And yes, they can be found in volcanic rocks. I recently saw a picture of the remains of an elephant caught up in a basalt(?) flow and I have personally seen trees engulfed by lavas at Hawaii. And what do you think of the artifacts at Pompeii, for instance? Could they not be used to date the eruption?
2. How do you know a lava is old, then, if the method is not acceptable for modern lavas?
Well from some of the samples I have heard about from creationist sources, one could look for fossils or artifacts. However, there are other methods such as devitrification rims that can be used to fairly accurately date recent lavas. The point is that if you come up with something around, or older than the maximum workable age for a given method, that is a red flag. Don't just publish a critique of the method, try something else first. It's like the old story of the inept carpenter blaming his tools.
Fossils or artifacts in lava? Ummm, OK. Can you tell me where anyone, creationist or otherwise has suggested that flowing lava would preserve and not burn them to a crisp? There must be something I am missing here.
And, finally, what ON EARTH does body plan have to do with a faster light speed???
Well, being a dumb geologist, it would seem to me that a highly energetic environment where the speed of light is thousands (or millions?) of time faster than present, that the lifeforms would probably be very different from what we see to day. Can you imagine the energy/radiation released by radiometric decay if lightspeed varied that much? Seems kind of weird to me.
I really think you have not read the work on this at all. Why don’t you?
My time is limited. When respected scientists in the field verify that this is even possible, I will take the time. Until then, I really have more pressing matters