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[EarthNSky <erthnsky AT bellsouth.net>]

bob ford wrote:
> Thank's.  I once read that there is an underwater crater, I believe
> near the Yacatan Peninsula, that is enough larger than Meteor Crater
> that the cause of the crater might have also been the cause of the
> extiction of dinosaurs. ...bobford

It is partially on the peninsula and partially in the water..it is 
HUGE-you could almost say it was half of the Bay of Campeche.  When the 
crater was discovered, it was, and still is, considered the best 
rationale for the extinction of the dinosaurs, but today there is some 
discussion that perhaps it isn't...
Can't resist, here is another timeline exerpt- the part about Chixchulub..

75 million years ago	Beginning of western uplift to become the Rocky 
Mountains
65 million	Dinosaurs extinct as well as other mass extinctions probably 
due to Chixchulub impact crater on Yucutan peninsula in Mexico(K-T 
extinction event); Australia still attached to Antartica, India about to 
collide with Asia, South Atlantic Ocean now present as South America and 
Africa separate; first large mammals and primitive primates
54 million      Mammals abound, rodents and primitive whales appear
45 million      Indian continent collides with Asia; Himalayan Mountains 
formed
40 million      Ice age cycles begin**; Mass extinctions
38 million      Many new mammals appear, grasses are common
35 million	Asteroid strikes and creates Chesapeake Bay, forming a 50 
mile wide crater








> --- On Thu, 6/26/08, EarthNSky <erthnsky AT bellsouth.net> wrote:
>
> > From: EarthNSky <erthnsky AT bellsouth.net> Subject: Re: [Homestead]
> > Very fast climate change To: homestead AT lists.ibiblio.org Date:
> > Thursday, June 26, 2008, 6:42 PM bob ford wrote:
> > > Bev; how long did it take for the Colorado to carve
> > the Grand Canyon?
> > > I've been there a number of times and maybe my
> > memory is wrong, but I
> > > thought the standard theory was that it took hundreds
> > of thousands if
> > > not millions of years....bobford
> > Well, okay, you caught me exaggerating...<g>, but it can happen
> > pretty quickly, even 2000 years is geologically a blink of the eye.
> > And even if the Grand Canyon was carved out in a week, that doesn't
> > mean it hasn't been there for millions of years.  I mean, just a
> > bit south of there is a big hole in the ground known as Barringer 
> > Crater, or Meteor crater.  That happened about as quickly as you
> > can imagine, almost 50 thousand years ago (49 I think, if I'm not a
> > year behind)  The climate in that region in the last 50 thousand
> > years has been pretty dry.  But seriously, I don't know that there
> > is a consensus on how old the canyon is...somewhere between 5 and
> > 20 million years old, I would guess, depending on what area you are
> > talking about.  The process probably sped up and slowed down
> > depending on the climate of the era...whether or not Earth was in
> > an ice age, etc.  For all we know, it may have started eroding 15
> > million years ago-maybe the size of a large ditch, then through 3
> > or 4 different climate eras, carved out what we see today.  It 
> > hasn't changed all that much in the several thousand years humans
> > have been in North America, for sure, but during that time, it's
> > been relatively dry. Here's something kind of interesting in a sad 
> > way...look up Providence Canyon...it's a state park down in south
> > Georgia.  They call it Georgia's Grand Canyon.  The remarkable
> > thing is that the canyon is only about 150 years old.  It's about
> > 150 feet deep, too...that's about a foot a year for
> > uniformitarians...<g>  It was caused by poor farming practices...a
> > gully run amok<Sp>.
> >
> > I like timelines, and I have created a master geological 
> > timeline..It helps me put things in perspective..it contains things
> > like volcanic explosions, impacts, anthropology, etc.  Dates are 
> > approximate, obviously, and for the most part, I have used the
> > orthodox dating making only occasional mention of controversial
> > dating.  The GC date is the conventional, orthodox date. Here's an
> > excerpt: 25 million years ago=First hominids appear, modern looking
> >  bears, wolves, birds, and horses appear; La Garita supervolcano 
> > caldera erupts with largest volcanic eruption VEI  9.1 in Colorado 
> > 13 million years ago= Mass extinctions 8 million=Mastodons roam
> > Earth; Southern California area 1/2 mile underwater 5 million
> > Impact in Tajikstan forms Karakul crater, 28 miles wide; Colorado
> > river begins to carve out the Grand Canyon 3 million    First upright
> > hominids (Australopithecenes); modern whales; megalodon swam the
> > seas 2 million   Advanced Australopithicus in Africa; Yellowstone
> >
> > supervolcanic eruption forming Huckleberry Ridge 1.5 million    Homo
> > habilis appears 1 million       Homo erectus appears 900 thousand
> > Magnetic pole flip (Jaramillo event) 750 thousand       First stone
> > artifacts found; multiple cratering event on ice-covered Antarctica
> > over thousands of miles in area 600 thousand    Ancient volcano
> > creates Yellowstone NP
> >
> > And if you are still reading, you now understand that 'Bev is
> > Earth' thing...lol...and you say, yup, she's a Taurean alright.
> >
> > Bev
> >
> >
> > -- BevanRon of EarthNSky Farm   NW Georgia USDA Zone 7 34.498N
> > 85.076W	   Bev is Earth, Ron is Sky 
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>
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--
BevanRon of EarthNSky Farm   NW Georgia USDA Zone 7
34.498N 85.076W    Bev is Earth, Ron is Sky