![]() |
|
|
|
Thread Tools | Display Modes |
|
#1
|
|||
|
|||
![]()
On 31 Dec 2004 23:27:20 -0800, "don findlay" wrote:
Wally Anglesea™ wrote: On 31 Dec 2004 18:09:52 -0800, "don findlay" wrote: Meteorite impacts leave evidence, like trace elements in the right places, and at the right "depths". Earthquakes don't. LIPS over millions of years are are "not evidence", but trace elements on Tuesday are?? Is this the logic we're up against, Commander? This encounter will be difficult. There's a **** more evidence for meteorites than your silly "Inflatable Earth" theory. Sorry about that. -- Maj. General, Fanatic Legions. Commander of Southern Hemisphere Forces. Find out about Australia's most dangerous Doomsday Cult: http://users.bigpond.net.au/wanglese/pebble.htm |
#2
|
|||
|
|||
![]()
I continue to be amazed how any news group discussion invariably degenerates
into a bunch of name calling, semi-flame wars (sometimes actual flame wars), and a bunch of silly abuse. Meteorites, asteroids, and comets might leave trace elements (like iridium), but there is ample evidence for massive volcanic action (such as the deccan traps), and given plate tectonics and the separation of the continents from Panagea, we could reasonably hypothesize truly intense earthquakes at times in earth's history. I am not a geologist, but I suspect there are earthquake signatures that could be found and dated which would support massive earthquakes. This thread started, however, with the assertion that perhaps the dinosaurs were killed off by a huge tsunami. The question then becomes, could any truly huge tsunami (or even a series of huge tsunami), regardless of the cause, do sufficient damage world-wide to kill off the dinosaurs (recalling that dino fauna have been found in South America, in the arctic, in the American west, in Australia, etc.) Right off the bat, it doesn't seem plausible. e. "Wally AngleseaT" wrote in message ... On 31 Dec 2004 23:27:20 -0800, "don findlay" wrote: Wally AngleseaT wrote: On 31 Dec 2004 18:09:52 -0800, "don findlay" wrote: Meteorite impacts leave evidence, like trace elements in the right places, and at the right "depths". Earthquakes don't. LIPS over millions of years are are "not evidence", but trace elements on Tuesday are?? Is this the logic we're up against, Commander? This encounter will be difficult. There's a **** more evidence for meteorites than your silly "Inflatable Earth" theory. Sorry about that. -- Maj. General, Fanatic Legions. Commander of Southern Hemisphere Forces. Find out about Australia's most dangerous Doomsday Cult: http://users.bigpond.net.au/wanglese/pebble.htm |
#3
|
|||
|
|||
![]()
In article , EarlCox wrote:
The question then becomes, could any truly huge tsunami (or even a series of huge tsunami), regardless of the cause, do sufficient damage world-wide to kill off the dinosaurs (recalling that dino fauna have been found in South America, in the arctic, in the American west, in Australia, etc.) Right off the bat, it doesn't seem plausible. Throw in the demonstrated fact that dinosaurs were living in mid-Arctic latitudes in the mid-Cretaceous and it gets very hard to argue that there were *no* dinosaurs in upland areas in the summer hemisphere at the time of impact/ tsunami, and it gets really hard to sustain the argument. The point for the asteroid impact hypothesis is that a "asteroid winter" could last *several years*. -- Aidan Karley, Aberdeen, Scotland, Location: 57°10'11" N, 02°08'43" W (sub-tropical Aberdeen), 0.021233 |
#4
|
|||
|
|||
![]()
Exactly. While the elapsed KT transition period was a blink of geological
time, it may have lasted several decades or several centuries. Dinosaur populations were scattered all over the world and, as recent evidence suggests, they were very robust and diverse. It is extraordinarily difficult to image a scenario where a series of tsunami, even huge tsunami, could obliterate all these populations. And a tsunami event would not explain why late Mesozoic sea reptiles as well as pterosaurs would also be wiped out. Unless of course you believe that a few of the sea beasties are still hiding out in a long thin but very deep lake in Scotland! grin e. "Aidan Karley" wrote in message . invalid... In article , EarlCox wrote: The question then becomes, could any truly huge tsunami (or even a series of huge tsunami), regardless of the cause, do sufficient damage world-wide to kill off the dinosaurs (recalling that dino fauna have been found in South America, in the arctic, in the American west, in Australia, etc.) Right off the bat, it doesn't seem plausible. Throw in the demonstrated fact that dinosaurs were living in mid-Arctic latitudes in the mid-Cretaceous and it gets very hard to argue that there were *no* dinosaurs in upland areas in the summer hemisphere at the time of impact/ tsunami, and it gets really hard to sustain the argument. The point for the asteroid impact hypothesis is that a "asteroid winter" could last *several years*. -- Aidan Karley, Aberdeen, Scotland, Location: 57°10'11" N, 02°08'43" W (sub-tropical Aberdeen), 0.021233 |
#5
|
|||
|
|||
![]()
In article , EarlCox wrote:
While the elapsed KT transition period was a blink of geological time, it may have lasted several decades or several centuries. A decidedly moot point. Several hundred thousand years is also a possibility. And a tsunami event would not explain why late Mesozoic sea reptiles as well as pterosaurs would also be wiped out. The marine "reptiles" certainly; the pterosaurs would only need to be kept on the wing for a generation or so to be rendered extinct (no one has seriously suggested that they lay, incubate, hatch on the wing). Unless of course you believe that a few of the sea beasties are still hiding out in a long thin but very deep lake in Scotland! grin Two such lakes (several hundred miles apart). My aunt swears blind that she's seen one of the beasties from her garden abutting Loch Ness. Knowing my aunt, I take this as strong evidence of the non-existance of Nessie. -- Aidan Karley, Aberdeen, Scotland, Location: 57°10'11" N, 02°08'43" W (sub-tropical Aberdeen), 0.021233 |
#6
|
|||
|
|||
![]() EarlCox wrote: Exactly. While the elapsed KT transition period was a blink of geological time, it may have lasted several decades or several centuries. Dinosaur populations were scattered all over the world and, as recent evidence suggests, they were very robust and diverse. It is extraordinarily difficult to image a scenario where a series of tsunami, even huge tsunami, could obliterate all these populations. Really? I find it quite easy. It's a question of food. Earthquakes, Runaway volcanism ('LIPS'), Volcanic 'winters' lasting (on and off) for a million or two years. Or thousands if you like.. But it has all the ingredients of catastrophe and fast burial. I would have thought it provides the most plausible explanation by a long way. And a tsunami event would not explain why late Mesozoic sea reptiles as well as pterosaurs would also be wiped out. Food again. All this volcanism didn't just happen on the one day. Unless of course you believe that a few of the sea beasties are still hiding out in a long thin but very deep lake in Scotland! grin |
#7
|
|||
|
|||
![]()
Yes, really.
I agree that world-wide and long lasting disruptions to the climate (runaway volcanism, volcanic winters, etc) whether caused by an asteroid impact or terrestrial events can significantly interfere with the food chain and bring on a mass extinction. But I was just saying that I don't think a set of tsunami, in and of themselves, could account for the extinction. The possible extinction of one or two species with a geographically restricted distribution, perhaps, but not of all the dinosaurs, marine reptiles and the pterosaurs. "don findlay" wrote in message ups.com... EarlCox wrote: Exactly. While the elapsed KT transition period was a blink of geological time, it may have lasted several decades or several centuries. Dinosaur populations were scattered all over the world and, as recent evidence suggests, they were very robust and diverse. It is extraordinarily difficult to image a scenario where a series of tsunami, even huge tsunami, could obliterate all these populations. Really? I find it quite easy. It's a question of food. Earthquakes, Runaway volcanism ('LIPS'), Volcanic 'winters' lasting (on and off) for a million or two years. Or thousands if you like.. But it has all the ingredients of catastrophe and fast burial. I would have thought it provides the most plausible explanation by a long way. And a tsunami event would not explain why late Mesozoic sea reptiles as well as pterosaurs would also be wiped out. Food again. All this volcanism didn't just happen on the one day. Unless of course you believe that a few of the sea beasties are still hiding out in a long thin but very deep lake in Scotland! grin |
#8
|
|||
|
|||
![]() Aidan Karley wrote: In article , EarlCox wrote: The question then becomes, could any truly huge tsunami (or even a series of huge tsunami), regardless of the cause, do sufficient damage world-wide to kill off the dinosaurs (recalling that dino fauna have been found in South America, in the arctic, in the American west, in Australia, etc.) Right off the bat, it doesn't seem plausible. Throw in the demonstrated fact that dinosaurs were living in mid-Arctic latitudes in the mid-Cretaceous How do you know they were living there? Their bones are just lying there right now. That's all. Never heard of continental drift? Once, Alaska, Antarctica, and China were closely justaposed, in around (relative to each other) where China is now - with the big bone beds of the Americas very closely (on a smaller Earth) along strike. (Earth expansion retrofit) and it gets very hard to argue that there were *no* dinosaurs in upland areas in the summer hemisphere at the time of impact/ tsunami, and it gets really hard to sustain the argument. The point for the asteroid impact hypothesis is that a "asteroid winter" could last *several years*. Not nearly as long as the million or two from the BIG LIPS, that was happening right under the Dinos feet. Tsunamis for sure, ...washing them up creeks and backwaters by the score. Seen the way they have to dig out the motor cars after the Aceh one? And that did happen on Tuesday (well, Sunday) -- Aidan Karley, Aberdeen, Scotland, Location: 57=B010'11" N, 02=B008'43" W (sub-tropical Aberdeen), 0=2E021233 |
#9
|
|||
|
|||
![]() "don findlay" wrote in message oups.com... Aidan Karley wrote: In article , EarlCox wrote: The question then becomes, could any truly huge tsunami (or even a series of huge tsunami), regardless of the cause, do sufficient damage world-wide to kill off the dinosaurs (recalling that dino fauna have been found in South America, in the arctic, in the American west, in Australia, etc.) Right off the bat, it doesn't seem plausible. Throw in the demonstrated fact that dinosaurs were living in mid-Arctic latitudes in the mid-Cretaceous How do you know they were living there? Their bones are just lying there right now. That's all. Never heard of continental drift? Once, Alaska, Antarctica, and China were closely justaposed, in around (relative to each other) where China is now - with the big bone beds of the Americas very closely (on a smaller Earth) along strike. (Earth expansion retrofit) The geiolgists say that North America and Antartica are about as for North and South then as now. The temps at those locations didn't get that cold at the time in those locations based on what was living there. At worst it was like coastal North Carolina. That doesn't mean you can live in modern Anarctica or Northern Greenland. and it gets very hard to argue that there were *no* dinosaurs in upland areas in the summer hemisphere at the time of impact/ tsunami, and it gets really hard to sustain the argument. The point for the asteroid impact hypothesis is that a "asteroid winter" could last *several years*. Not nearly as long as the million or two from the BIG LIPS, that was happening right under the Dinos feet. Tsunamis for sure, ...washing them up creeks and backwaters by the score. Seen the way they have to dig out the motor cars after the Aceh one? And that did happen on Tuesday (well, Sunday) -- Aidan Karley, Aberdeen, Scotland, Location: 57°10'11" N, 02°08'43" W (sub-tropical Aberdeen), 0.021233 |
#10
|
|||
|
|||
![]() "EarlCox" wrote in message om... I continue to be amazed how any news group discussion invariably degenerates into a bunch of name calling, semi-flame wars (sometimes actual flame wars), and a bunch of silly abuse. Why? This it normal behavior for bob tailed monkeys. Meteorites, asteroids, and comets might leave trace elements (like iridium), but there is ample evidence for massive volcanic action (such as the deccan traps), and given plate tectonics and the separation of the continents from Panagea, we could reasonably hypothesize truly intense earthquakes at times in earth's history. I am not a geologist, but I suspect there are earthquake signatures that could be found and dated which would support massive earthquakes. You don't get the big quakes where the land is tearing apart. You get the big ones where they are being shoved past are into each other. Don't forget exploding volcanoes such as Thera or major land slides several of which have now been mapped on Hawaii alone though none in historic time. It does have a huge crack that looks like a big chunk is about ready to go. This thread started, however, with the assertion that perhaps the dinosaurs were killed off by a huge tsunami. The question then becomes, could any truly huge tsunami (or even a series of huge tsunami), regardless of the cause, do sufficient damage world-wide to kill off the dinosaurs (recalling that dino fauna have been found in South America, in the arctic, in the American west, in Australia, etc.) Right off the bat, it doesn't seem plausible. e. "Wally AngleseaT" wrote in message ... On 31 Dec 2004 23:27:20 -0800, "don findlay" wrote: Wally AngleseaT wrote: On 31 Dec 2004 18:09:52 -0800, "don findlay" wrote: Meteorite impacts leave evidence, like trace elements in the right places, and at the right "depths". Earthquakes don't. LIPS over millions of years are are "not evidence", but trace elements on Tuesday are?? Is this the logic we're up against, Commander? This encounter will be difficult. There's a **** more evidence for meteorites than your silly "Inflatable Earth" theory. Sorry about that. -- Maj. General, Fanatic Legions. Commander of Southern Hemisphere Forces. Find out about Australia's most dangerous Doomsday Cult: http://users.bigpond.net.au/wanglese/pebble.htm |
|
Thread Tools | |
Display Modes | |
|
|
![]() |
||||
Thread | Thread Starter | Forum | Replies | Last Post |
Tsunami Disturbs Earth's Rotation | SaberScorpX | Amateur Astronomy | 38 | January 1st 05 04:26 PM |
How to Help the Tsunami Victims | Gareth Slee | Amateur Astronomy | 2 | December 31st 04 11:11 PM |
How to Help the Tsunami Victims | Gareth Slee | UK Astronomy | 7 | December 31st 04 08:46 AM |
Equivalent Asteroid size for generating Tsunami? | Tom Luton | Amateur Astronomy | 13 | December 30th 04 07:45 AM |
Is Tsunami Binos any Good? | Von Fourche | Misc | 0 | April 19th 04 02:12 AM |