Eclipse 2017

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eclipse
from post.google.com Aug 18 2017

 

The Day I Was Almost Eaten by a Shark, and The Day the Dinosaurs Died

ECORD Expedition 364 - 2016
IODP, International Ocean Discovery Program, ECORD Expedition 364, Apr-May 2016

If the rock that hit the Earth 66 million years ago had been just a little later, or a little earlier, we might not be here talking about it.  

“They illustrate what happened in the seconds and hours after the impact, revealing that had the huge asteroid struck the Earth a moment earlier, or later, the destruction might not have been total for the dinosaurs. And if they still roamed the world, we humans may never have come to rule the planet.” — BBC Two — The Day the Dinosaurs Died

 

I was once almost eaten by a shark in the warm waters off Chicxulub. It was 1972 and I was on holiday in Mexico. We were spending a week in the Yucatan.  After leaving Merida our concierge, driver, cook, and friend took us to his mother-in-law’s summer home on the beaches of Chicxulub.  My spanish is not good and I thought we had rented the little cabin/hut in the back of the beach front property. “No, no esa cosa pequeña … esa casa grande!”

 It was awesome. The sand, the art, the cool tiles, the warm sea … and it seemed that we had it all to ourselves.   After a few days of our fabulous holiday, my partner had to go into town about the car rental, but despite the warnings I’d heard about swimming with a partner, I couldn’t stay out of the ocean and I went into those waves anyways. I’m splashing around about 100 feet off shore when I noticed a small boy on the beach, jumping up and down, waving, and yelling at me …  “hola!”  “What’s that you’re saying?”  I swam back to shore but he ran away, up the beach, toward the nearby small town of Chicxulub.  

My partner and I regularly walked into Chicxulub in the evening, where we ate street food and soaked up the ambiance.   That night, as we walked along the beach, we could see there was quite a happening on the town dock,  boats and trucks, lots of people, lights and action.  It wasn’t long before we were at the scene and had it figured out.  They were hauling a huge dead shark onto the dock.   This was no baby shark. It was gianormous.  Indeed I’m convinced it was the inspiration for the movie “Jaws” which was released only a few years later.   When people talked about the movie I thought, that was nothing! You should have seen the monster we saw in Chicxulub!  

Anyways, we left the dock and walked the short distance to a large restaurant we had planned to eat at on our last day in the Yucatan.  We enter, and who is the first person I see?  The boy who was on the beach that morning!   He seemed really happy to see me and soon his Dad was ushering us to a table where he handed us a couple of menus.  And there, on the menu, was the word the boy had been yelling at me that afternoon.  Hola! tiburón! tiburón! tiburón! “

 

Then, in 1980, the father-and-son team of scientists Luis and Walter Alvarez, suggested the hypothesis that the mass extinction of the dinosaurs was caused by the impact of a large asteroid hitting Earth.  And last year, ECORD, the European Consortium for Ocean Research Drilling, launched an expedition to drill core from the crater peak of that event.   Here is the web page.

http://www.ecord.org/expedition364/

Here is the flyer. 

Expedition 364 flyer
Expedition 364 flyer

Earth Craters – North America

Earthshine Rocks in Space Earth Craters, North America

 
 

This is:  North American Impact Craters

Quaternary Tertiary Cretaceous Jurassic Triassic Permian
Carboniferous Devonian Silurian Ordovician Cambrian Precambrian

View Maps   | View more continents: South America - Europe - Africa - Asia - Australia

Map
Ref
Name Location Lat Long Age (Ma) Diameter
(kms)
Surface
Exposed
Pic Notes
RR Haviland Kansas, USA N 37° 35' W 99° 10' <0.001 0.015 yes yes n/a
QQ Barringer Arizona, USA N 35° 2' W 111° 1' 0.049 ± 0.003 1.186 yes yes n/a
ZZ Odessaa Texas, USA N 31° 45' W 102° 29' <0.05 0.168 yes yes n/a
G New Quebec Quebec, Canada N 61° 17' W 73° 40' 1.4 ± 0.1 3.44 yes yes n/a
B Haughton NWT, Canada N 75° 22' W 89° 41' 23 ± 1 24 yes yes NASA
  Wanapitei Ontario, Canada N 46° 45' W 80° 45' 37 ± 2 7.5 yes yes n/a
PP Chesapeake Bay Virginia, USA N 37° 17' W 76° 1'  35.5 ± 0.6 85 no yes USGS
Mistastin Nfld/Lab, Canada N 55° 53'' W 63° 18' 38 ±4 28 yes yes n/a
CC Montagnais Nova Scotia, Canada N 42° 53' W 64° 13' 50.5 ± 0.76 0.76 no no n/a
BBB Marquez Texas, USA N 31° 17'  W 96° 18'  58 ± 2 13 no no n/a
O Eagle Butte Alta, Canada N 49° 42' W 110° 30' <65 10 no yes n/a
CCC Chicxulub Yucatan, Mexico N 21° 20' W 89° 30' 64.98 ± 0.05 170  no yes wiki
II Manson Iowa, USA N 42° 35' W 94° 33' 73.8 ± 0.3 35 no no wiki
A Avak Alaska, USA N 71° 15' W 156° 38' >95 12 no no n/a
C Steen River Alta, Canada N 59° 30' W 117° 38' 95 ± 7 25 no no n/a
L Deep Bay Sask, Canada N 56° 24' W 102° 59 100± 50 13 yes yes n/a
J Carswel Sask, Canada N 58° 27' W 109° 30' 115± 10 39 yes yes n/a
P Maple Creek Sask, Canada N 49° 48'  W 109° 6'  ;<75 6 no no n/a
U West Hawk Manitoba, Canada N 49° 46' W 95° 11' 100± 50 2.44 yes yes wiki
NN Kentland Indiana, USA N 40° 45'  W 87° 24' <97 13 yes yes n/a
AAA Sierra Madera  Texas, USA N 30° 36' W 102° 55' <100 13 yes yes n/a
HH Upheaval Dome Utah, USA N 38° 26' W 109° 54' <170 10 yes yes n/a
R Viewfield Sask, Canada N 49° 35'  W 103° 4'  190± 20 2.5 no no n/a
EE Red Wing N. Dakota, USA N 47° 36' W 103° 33' 200 ± 25 9  no no n/a
VV  Wells Creek Tennessee, USA N 36° 23' W 87° 40' 200 ± 100 12 yes yes n/a
K Gow Sask, Canada N 56° 27' W 104° 29'  <250 5 yes yes n/a
T St. Martin Manitoba, Canada N 51° 47' W 98° 32' 220 ± 32 40 yes yes n/a
AA Manicouagan Quebec, Canada N 51° 23' W 68° 42' 214 ± 1 100 yes yes n/a
KK Des Plaines Illinois, USA N 42° 3'  W 87° 52' <280 8 no no n/a
M Clearwater West Quebec, Canada N 56° 13'   W 74° 30' 290± 20 36 yes yes n/a
N Clearwater East Quebec, Canada N 56° 5' W 74° 7'  290± 20 26 yes yes n/a
OO Serpent Mound Ohio, USA N 39° 2' W 83° 24' <320 8 yes yes n/a
TT Decaturville Missouri, USA N 37° 54' W 92° 43' <300 6 yes yes n/a
UU Crooked Creek Missouri, USA N 37° 50' W 91° 23' 320 ± 80 7 yes yes n/a
XX Flynn Creek Tennessee, USA N 36° 17' W 85° 40' 360 ± 20 3.55 yes yes n/a
E Nicholson NWT, Canada N 62° 40' W 102° 41' <400 12.5 yes yes n/a
BB Charlevoix Quebec, Canada N 47° 32' W 70° 18'  357 ± 15 54 yes yes n/a
H La Moinerie Quebec, Canada N 57° 26'  W 66° 37' 400± 50 8 yes yes n/a
Q Elbow Sask, Canada N 50° 59' W 106° 43' 395 ± 25 8 no no n/a
YY Middlesboro Kentucky, USA N 36° 37' W 83° 44' <300 6 yes no n/a
F Couture Quebec, Canada N 60° 8' W 75° 20' 430± 25 8 yes yes n/a
  Glasford Illinois, USA N 40° 36' W 89° 47' <430 4 no no n/a
D Pilot NWT, Canada N 60° 17' W 111° 1' 445± 2 6 yes yes n/a
S Newporte N. Dakota, USA N 48° 58' W 101° 58' <500 3.2 no no n/a
V Slate Islands Ontario, Canada N 48° 40' W 87° 0' ~450 30 yes yes odale
Z Presqu'île Quebec, Canada N 49° 43' W 74° 48' <500 24 yes yes odale
FF Brent Ontario, Canada N 46° 5' W 78° 29' 450 ± 30 3.8 yes yes passc
JJ Glover Buff Wisconsin, USA N 43° 58' W 89° 32' <500 8 yes no n/a
LL Calvin Michigan, USA N 41° 50' W 85° 57' 450 ± 10 8.5 no no n/a
SS  Ames Oklahoma, USA N 36° 15' W 98° 12' 470 ± 30 16 no yes n/a
DD Beaverhead Montana, USA N 44° 36' W 113° 0' ~600 60 yes no  
GG Holleford Ontario, Canada N 44° 28' 76° 38' 550 ± 100 2.35 no yes n/a
W Sudbury Ontario, Canada N 46° 36' W 81° 11' 1850± 3 250 yes yes wiki

UP TO VIEW  NORTH AMERICA TABLE

From www.unb.ca/passc/ImpactDatabase/


South America - Europe - Africa - Asia - Australia - Rocks in Space Home Page

Notes:
Created 2001, Updated: Feb 2007, last update (code clean) Apr 2017
>20 km The formation of impact craters as small as 20 km could produce light reductions and temperature disruptions similar to a nuclear winter. Such impacts occur on Earth with a frequency of two or three every million years.

References
1 Natural Resources Canada - Regional Geophysics Section
2 UCMP Web Time Machine
3 Image Update 2007 - PASSC
4 Aerial Explorations of Terrestrial Meteorite Craters - Charles O'Dale

Earth Craters Sorted by Continent

I began this Earth Crater project back in the late 90’s, pre-google. The html has had some updates. 😉 And, most awesomely, there are 40 more earth crater discoveries since those days. Today,  (Apr 2017) do find your details about earth impactors at 

The Planetary and Space Science Center at The University of New Brunswick.  You can use that database, combined with Wikipedia entries, and Google Earth, for an almost multi-media experience … you’ve got to love the 21st century!

The ways in which men came into the knowledge of things celestial appears to me almost as marvelous as the nature of these things themselves.
— Johannes Kepler

The impact of comets has profoundly influenced the story of life. 
— Gene Shoemaker

Earth Craters Sorted by Continent

North AmericaSouth AmericaEurope – Africa – Asia – Australia

SpaceGene’s Space Links

 
Spacegene Links to the Universe
Last Updated November 28, 2013 Do Email additions and errors Top