Hand sample of Dresser Formation stromatolite (IMAGE)

Geological Society of America

Hand sample of Dresser Formation stromatolite

Caption

Hand sample of Dresser Formation stromatolite, showing a complex layered structure formed of hematite, barite, and quartz, and a domed upper surface (dome arrow).

Credit

Keyron Hickman-Lewis and colleagues

Usage Restrictions

Credit must be given to the creator. Only noncommercial uses of the work are permitted.

License

CC BY-NC

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