Varved Marine Sediments in a Stagnant Fjord.
Varved sediments, containing planktonic marine diatoms, occur in Saanich Inlet, British Columbia. An olive-gray lamina, rich in opal, apparently forms during the bloom of Skeletonema costatum in the spring or summer, after which an olive-black lamina is deposited.
Gross
M G
MG
Gucluer
S M
SM
Creager
J S
JS
Dawson
W A
WA