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
--- 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 carvethe Grand Canyon?
I've been there a number of times and maybe mymemory is wrong, but I
thought the standard theory was that it took hundredsof thousands if
not millions of years....bobfordWell, 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 _______________________________________________ Homestead list and
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