HomeHome  RegisterRegister  Log in  

Share | 
 

 Asteroid Impact

View previous topic View next topic Go down 
Go to page : 1, 2  Next
AuthorMessage
Ciderman
V.I.P Member
V.I.P Member
avatar

Posts : 696
Join date : 2014-09-24
Age : 78
Location : Hawkes Bay New Zealand

PostSubject: Asteroid Impact   Fri Oct 17, 2014 7:53 am

I found this rather interesting and it could possibly tie in with the loss of a Chinese fleet mentioned in the Gavin Menzies website.


Mahuika crater is a proposed submarine [url=/wiki/Bolide]bolide[/url] [url=/wiki/Impact_crater]impact crater[/url], 20 ± 2 km wide and over 153 m deep, on the [url=/wiki/New_Zealand]New Zealand[/url] continental shelf named after the [url=/wiki/Mahuika]Māori god of fire[/url]. It was discovered by [url=/wiki/Dallas_Abbott]Dallas Abbott[/url] and her colleagues from the [url=/wiki/Lamont-Doherty_Earth_Observatory]Lamont-Doherty Earth Observatory[/url] of the [url=/wiki/Columbia_University]Columbia University[/url].

Around the year 1400, the natives of New Zealand abandoned their southern coastal settlements. New Zealand tsunami expert Professor James Goff attributes coastal abandonment in New Zealand at 1500 AD to an earthquake-induced tsunami event. However, the largest historical earthquakes produced maximum tsunami runups of 40 to 60 metres. On [url=/wiki/Stewart_Island]Stewart Island[/url], New Zealand, beach sand is present ~220 metres above sea level at Hellfire Hut and ~150 metres above sea level at Mason Bay. In eastern Australia, there are [url=/wiki/Megatsunami]megatsunami[/url] deposits with maximum run-ups of over 130 metres and a C-14 age of ~1500 AD[2]. Megatsunami deposits occur on the eastern side of [url=/wiki/Lord_Howe_Island]Lord Howe Island[/url] in the middle of the [url=/wiki/Tasman_Sea]Tasman Sea[/url], implying a source crater for the tsunami further east. Abbott et al. (2003) suggests that a bolide impact would explain both the geological and anthropological evidence better than an earthquake.

Based on elemental anomalies, fossils, and minerals, which are interpreted to be derived from the impact, found in an [url=/wiki/Ice_core]ice core[/url] from the Siple Dome in [url=/wiki/Antarctica]Antarctica[/url], Abbott et al. (2005) argues that the impact, which created the Mahuika crater occurred around 1443 AD.
Back to top Go down
http://www.geocities.ws/ciderman_nz/
davo
V.I.P Member
V.I.P Member
avatar

Posts : 2207
Join date : 2016-10-19
Location : OZ

PostSubject: Re: Asteroid Impact   Sun Dec 18, 2016 1:40 am

didn't quite get that can you summarize it?
Back to top Go down
Ciderman
V.I.P Member
V.I.P Member
avatar

Posts : 696
Join date : 2014-09-24
Age : 78
Location : Hawkes Bay New Zealand

PostSubject: Re: Asteroid Impact   Sun Dec 18, 2016 2:26 am

A big meteor hit about AD 1431, Made a hole in the ocean floor about 20km wide. Wiped out a Chinese fleet and put beach sand 200 metres up on Stewart Island. I'd love to have seen that!

___________________________________________________
Civilisation is a veneer, easily soluble in alcohol!
Back to top Go down
http://www.geocities.ws/ciderman_nz/
davo
V.I.P Member
V.I.P Member
avatar

Posts : 2207
Join date : 2016-10-19
Location : OZ

PostSubject: Re: Asteroid Impact   Sun Dec 18, 2016 3:35 am

could you have picked a safe place to view from?
Back to top Go down
Ciderman
V.I.P Member
V.I.P Member
avatar

Posts : 696
Join date : 2014-09-24
Age : 78
Location : Hawkes Bay New Zealand

PostSubject: Re: Asteroid Impact   Sun Dec 18, 2016 4:27 am

The Moon!  :-)

___________________________________________________
Civilisation is a veneer, easily soluble in alcohol!
Back to top Go down
http://www.geocities.ws/ciderman_nz/
andsome
V.I.P Member
V.I.P Member
avatar

Posts : 4525
Join date : 2014-09-24
Age : 81
Location : Burntwood in Staffordshie, ENGLAND

PostSubject: Re: Asteroid Impact   Sun Dec 18, 2016 8:06 am

davo wrote:
could you have picked a safe place to view from?

He would have been OK in a helicopter. cool

___________________________________________________
Gustav Mahler is the finest composer who ever lived.

Back to top Go down
AlanHo
V.I.P Member
V.I.P Member
avatar

Posts : 7425
Join date : 2016-10-16
Age : 80
Location : Solihull

PostSubject: Re: Asteroid Impact   Sun Dec 18, 2016 8:36 am

andsome wrote:
Quote :
He would have been OK in a helicopter. cool

No chance - a meteorite coming in at that speed would cause violent local winds that would bring a helicopter down close enough to see the strike

___________________________________________________
This post may contain controversial personal opinion, humour,  ironic comment or sarcasm. If I have accidentally offended you - please contact me and I will unreservedly apologise. If however it was intentional - it will add to my pleasure. whistle
Back to top Go down
andsome
V.I.P Member
V.I.P Member
avatar

Posts : 4525
Join date : 2014-09-24
Age : 81
Location : Burntwood in Staffordshie, ENGLAND

PostSubject: Re: Asteroid Impact   Sun Dec 18, 2016 8:50 am

A strike that big would be seen from a great height, SO THERE SMARTY PANTS.

___________________________________________________
Gustav Mahler is the finest composer who ever lived.

Back to top Go down
AlanHo
V.I.P Member
V.I.P Member
avatar

Posts : 7425
Join date : 2016-10-16
Age : 80
Location : Solihull

PostSubject: Re: Asteroid Impact   Sun Dec 18, 2016 9:11 am

Helicopters can't fly all that high - they are rotarians

___________________________________________________
This post may contain controversial personal opinion, humour,  ironic comment or sarcasm. If I have accidentally offended you - please contact me and I will unreservedly apologise. If however it was intentional - it will add to my pleasure. whistle
Back to top Go down
davo
V.I.P Member
V.I.P Member
avatar

Posts : 2207
Join date : 2016-10-19
Location : OZ

PostSubject: Re: Asteroid Impact   Sun Dec 18, 2016 9:30 am

there weren't no helicopters in 1431?
Back to top Go down
AlanHo
V.I.P Member
V.I.P Member
avatar

Posts : 7425
Join date : 2016-10-16
Age : 80
Location : Solihull

PostSubject: Re: Asteroid Impact   Sun Dec 18, 2016 10:15 am

Didn't Leonardo da Vinci invent one
.
.
.

___________________________________________________
This post may contain controversial personal opinion, humour,  ironic comment or sarcasm. If I have accidentally offended you - please contact me and I will unreservedly apologise. If however it was intentional - it will add to my pleasure. whistle
Back to top Go down
andsome
V.I.P Member
V.I.P Member
avatar

Posts : 4525
Join date : 2014-09-24
Age : 81
Location : Burntwood in Staffordshie, ENGLAND

PostSubject: Re: Asteroid Impact   Sun Dec 18, 2016 10:43 am

davo wrote:
there weren't no helicopters in 1431?


Eric Biggs invented one before D Vinci, but only one was made specially because a large asteroid was expected and he wanted to see the impact.

___________________________________________________
Gustav Mahler is the finest composer who ever lived.

Back to top Go down
Sponsored content




PostSubject: Re: Asteroid Impact   

Back to top Go down
 
Asteroid Impact
View previous topic View next topic Back to top 
Page 1 of 2Go to page : 1, 2  Next
 Similar topics
-
» Mighty Big Asteroid Heading Our Way !!
» U.K. Banks downgraded
» George's Interview & Letter
» Effects Of The Cold War Era In Canada
» 5 tax changes that will impact your 2016 return

Permissions in this forum:You cannot reply to topics in this forum
Murgatroyd's Drop-in centre and Forum :: Popular Topics :: Public Bar and Lounge-
Jump to: