The term "traps" I am using here only to make parallel with the
Deccan traps.
We see that Deccan traps were at the opposite side of Yucatan asteroid impact. Well, at the opposite side of Popigai asteroid impact
is Drake Passage.
Ice began to collect on Antarctica some 45.5 mya. But it intensified at the time of Popigai impact. They don't know when Drake
Passage opened (sometime 47 to 17 mya), but they take that opening of
Drake Passage could have a role in intensifying the collection of ice on Antarctica:
https://en.wikipedia.org/wiki/Antarctic_ice_sheet#History https://upload.wikimedia.org/wikipedia/commons/1/1b/65_Myr_Climate_Change.png
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