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Hi Andre,

the argument I make about the magnetic domains in newly formed rocks is this. When rock forms, and cools below the Curie temperature for ferromagnetic materials, the field cooling creates a remnant magnetic field with the direction of this field aligned with the polarity and direction of the earth's magnetic field at the time of cooling. In the case of mid ocean ridges, this forms a striation of rock in which the polarity of the magnetic field can be ascertained through the direction of the remnant magnetisation, and is one method by which we know that the earths magnetic field reverses.

Now if ECD takes place along the 70th meridian, and because earth is a sphere, then parts of the world will have its crust now at a different angle to the magnetic field, and thus the domain striations will also be recoded at an angle to the magnetic field. For example, a shift along the 70th meridian will cause the longitudes between to tilt with respect to their original orientation with respect the magnetic field. This would result in a distinct skew of a very appreciable angle, in the magnetic field direction of rock formed after an ECD event. To my knowledge this skewing of the magnetisation direction is not observed, thus casting doubt upon the ECD model.

On the note of 95% extinction, I think perhaps you were thinking of the Permian-Triassic extinction at the end of the Permian era, which resulted in the extinction of 90-95% of species.

For the Hawaiian argument, the tubes that form the islands, are connected to a mantel plume, and any major shift in the crust would disconnect them from the plume source. The chain of islands formed and are still forming because of the slow movement of the plate above the plume. Thus if there was a discontinuous shift in the crust such as proposed by ECD, then there would be a discontinuity in this chain of islands which have been growing for 6 million years. It would also likely move the islands away from the underlying plume system, cutting off the tubes from the magma plume reservoir, halting (or at the least retarding) volcanic activity (which is still observed on the isalnds today).

Jonny




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Subject Views Written By Posted
I found something big..... 501 andre.chaisson 14-Jan-10 23:05
Re: I found something big..... 315 Ahatmose 15-Jan-10 00:14
Re: I found something big..... 315 andre.chaisson 15-Jan-10 00:57
Off topic for Ahatmose 338 Absinthujone 15-Jan-10 04:38
Re: I found something big..... 312 andre.chaisson 15-Jan-10 00:52
Re: I found something big..... 259 obsolete 15-Jan-10 01:31
Re: I found something big..... 313 andre.chaisson 15-Jan-10 01:59
Take it easy, Andre... 295 Absinthujone 15-Jan-10 03:53
Re: Take it easy, Andre... 319 Absinthujone 15-Jan-10 04:16
Re: I found something big..... 372 andre.chaisson 15-Jan-10 12:43
Re: I found something big..... 358 Absinthujone 15-Jan-10 13:45
Re: I found something big..... 251 andre.chaisson 15-Jan-10 14:05
Re: I found something big..... 317 NetWorkAngel 15-Jan-10 15:02
Re: I found something big..... 315 andre.chaisson 15-Jan-10 20:36
Re: I found something big..... 301 andre.chaisson 15-Jan-10 20:44
Re: I found something big..... 294 andre.chaisson 15-Jan-10 21:14
The Core Samples Already Exist and Hace Been Described and Published 302 Xebec 10-Feb-10 04:37
Re: I found something big..... 344 JonnyMcA 16-Jan-10 14:17
Re: I found something big..... 280 andre.chaisson 16-Jan-10 18:26
Re: I found something big..... 249 JonnyMcA 16-Jan-10 19:41
Re: I found something big..... 343 richarddullum 27-Jan-10 03:30
Re: I found something big..... 295 Essan 27-Jan-10 14:48
Re: I found something big..... 253 Green Ruby 01-Feb-10 00:30
Re: I found something big..... 278 Ahatmose 01-Feb-10 03:48
Re: I found something big..... 258 Feralkiwi 01-Feb-10 02:32
Otto Muck's Atlantic "Craters" 2040 Xebec 11-Feb-10 02:02
Re: I found something big.....Yeah: GOOD MUSIC!! 335 Avatar 01-Feb-10 15:05
Re: I found something big.....Yeah: GOOD MUSIC!! 332 andre.chaisson 01-Feb-10 21:06
Need Some Hard Data 389 Xebec 10-Feb-10 04:26
Re: Need Some Hard Data 295 Ahatmose 10-Feb-10 20:30


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