Kingak Shale Formation

Geology

Members: unnamed (34)

Lithologies: not reported (1), "shale" (28), siltstone (5), sandstone (5), "limestone" (2), ironstone (18)

Paleoenvironments: marine indet. (32), offshore (1), deep-water indet. (1)

Age range: base of the Toarcian to the top of the Oxfordian or 184.20000 to 154.80000 Ma
Collections

Time interval Ma Country or state Original ID and collection number
Early/Lower Jurassic201.4 - 174.7USA (Alaska) (5230 5233 5471 5477 5479 5491 5492 5493)
Toarcian184.2 - 174.7USA (Alaska) (5475)
Early/Lower Bajocian170.9 - 168.6USA (Alaska) (5237 5446 5472 5486 5487 5488 5489 5490)
Callovian165.3 - 161.5USA (Alaska) (5226 5227 5234 5443)
Early/Lower Callovian165.3 - 161.5USA (Alaska) (5235 5485)
Middle Callovian165.3 - 161.5USA (Alaska) (5236)
Oxfordian161.5 - 154.8Canada (Yukon) (55965 55969)
Late/Upper Oxfordian - Early/Lower Kimmeridgian157.9 - 152.21USA (Alaska) (5228 5231 5232 5455 5467 5470)
Late/Upper Oxfordian - Kimmeridgian157.9 - 149.2USA (Alaska) (5229 5450)