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Braintree Argillite and Weymouth Formation (MACAbw;0)
Geologic Formation
near
Hingham
,
MA
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Lithology
Argillite
Limestone
Limestone
Geologic Age
Early Cambrian – Middle Cambrian (542 Ma – 497 Ma ago)
Geologic Unit Label
CAbw
Argillite, some with rare limestone; contains Middle and Early Cambrian faunae respectively.
—
USGS
Taxonomy
Classified As
Geologic Formation
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