Science & Space :  The Official GrahamHancock.com forums
For all that is Scientifically related to Cosmology and Space. (NB: Please take discussions about UFOs, possible Alien contact, Crop-Circles, Alien Abductions, Planet-X and Niburu to the ‘Paranormal and Supernatural’ Message Board). 
Welcome! Log InRegister
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




This post was created using 100% recycled electrons

Options: ReplyQuote


Subject Views Written By Posted
I found something big..... 428 andre.chaisson 14-Jan-10 23:05
Re: I found something big..... 279 Ahatmose 15-Jan-10 00:14
Re: I found something big..... 266 andre.chaisson 15-Jan-10 00:57
Off topic for Ahatmose 297 Absinthujone 15-Jan-10 04:38
Re: I found something big..... 257 andre.chaisson 15-Jan-10 00:52
Re: I found something big..... 236 obsolete 15-Jan-10 01:31
Re: I found something big..... 255 andre.chaisson 15-Jan-10 01:59
Take it easy, Andre... 269 Absinthujone 15-Jan-10 03:53
Re: Take it easy, Andre... 287 Absinthujone 15-Jan-10 04:16
Re: I found something big..... 324 andre.chaisson 15-Jan-10 12:43
Re: I found something big..... 332 Absinthujone 15-Jan-10 13:45
Re: I found something big..... 200 andre.chaisson 15-Jan-10 14:05
Re: I found something big..... 291 NetWorkAngel 15-Jan-10 15:02
Re: I found something big..... 253 andre.chaisson 15-Jan-10 20:36
Re: I found something big..... 247 andre.chaisson 15-Jan-10 20:44
Re: I found something big..... 237 andre.chaisson 15-Jan-10 21:14
The Core Samples Already Exist and Hace Been Described and Published 265 Xebec 10-Feb-10 04:37
Re: I found something big..... 311 JonnyMcA 16-Jan-10 14:17
Re: I found something big..... 231 andre.chaisson 16-Jan-10 18:26
Re: I found something big..... 220 JonnyMcA 16-Jan-10 19:41
Re: I found something big..... 306 richarddullum 27-Jan-10 03:30
Re: I found something big..... 255 Essan 27-Jan-10 14:48
Re: I found something big..... 225 Green Ruby 01-Feb-10 00:30
Re: I found something big..... 239 Ahatmose 01-Feb-10 03:48
Re: I found something big..... 222 Feralkiwi 01-Feb-10 02:32
Otto Muck's Atlantic "Craters" 1877 Xebec 11-Feb-10 02:02
Re: I found something big.....Yeah: GOOD MUSIC!! 294 Avatar 01-Feb-10 15:05
Re: I found something big.....Yeah: GOOD MUSIC!! 268 andre.chaisson 01-Feb-10 21:06
Need Some Hard Data 349 Xebec 10-Feb-10 04:26
Re: Need Some Hard Data 266 Ahatmose 10-Feb-10 20:30


Sorry, only registered users may post in this forum.