by: Charles O’Dale
EXPLORED CRATERS/STRUCTURES SORTED:
ALPHABETICALLY
CONFIRMED;
PROBABLE;
PROPOSED;
IMPROBABLE;
NON-IMPACT CIRCULAR STRUCTURE.
CRATER EXPLORATION ACQUAINTANCES
PERSONAL EXPLORATIONS
MY AMATEUR ADVENTURES IN CRATER EXPLORATION;
VIDEOS OF “STUFF” I HAVE BEEN UP TO IN THE PAST LITTLE WHILE
JOURNAL of the RASC – PINGUALUIT IMPACT CRATER;
SMITHSONIAN – PINGUALUIT IMPACT CRATER;
SKY NEWS – CANADIAN IMPACT CRATERS;
CANADIAN CRATERS;
2001 CRATER TOUR QUEBEC CANADA
EARTH SCIENCE PICTURE OF THE DAY
- BRENT – BRECCIA LENS
- CHARLEVOIX – SHATTER CONE
- MANICOUAGAN – BRECCIA
- MANICOUAGAN – IMPACT MELT
- MEREWETHER – ENIGMA
- SLATE ISLANDS – SHATTER CONE
– W. Durant –
EXTINCTIONS:
ARCHEAN: 4.0 – 2.5 BILLION;
PROTEROZOIC: 2.5 BILLION – 542 MILLION;
HADEAN: 4.56 – 3.8 BILLION;
CAMBRIAN: 542 – 488 MILLION;
ORDOVICIAN: 488 – 443 MILLION;
MISSISSIPPIAN: 359.2 – 318 MILLION:;
PENNSYLVANIAN: 318 – 299 MILLION;
PERMIAN: 299 – 252.2 MILLION;
TRIASSIC: 252.2 – 199.6 MILLION;
JURASSIC: 199.6 – 145 MILLION:
CRETACEOUS: 145 – 65.5 MILLION:
PALEOCENE: 65.5 – 55.8 MILLION ;
OLIGOCENE: 33.9 – 23 MILLION;
MIOCENE: 23 – 5.3 MILLION;
PLIOCENE: 5.3 – 1.8 MILLION;
PLEISTOCENE: 1.8 MILLION – 10 THOUSAND;
HOLOCENE – 10 THOUSAND – PRESENT;
K-Pg & Tr-J GEOMORPHOMETRY COMPARISONS;
TWO EXTINCTIONS AND THE DINOSAURS;
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