stromatolite
stromatolite
Definition
stro·mato·lite (strō mat′ə līt′)
noun
a laminated, sedimentary rock structure formed primarily in Precambrian shallow pools by mats of sticky, blue-green algae, which trapped layers of silt, esp. of calcium carbonate: these wavy or round formations serve as evidence for dating the first life forms on earth and are still being produced today
stromatolite
Usage Examples
Converse of object
- call: The reef structures are called stromatolites, which means they are sheet, or layered in shape.
- discover: Careful hunting in the limestone revealed examples of the algal laminations and small domed stromatolites discovered by Margaret Wood and colleagues in the 70s.
Modifies a noun
- reef: This means the term " algal " stromatolite reef is no longer current scientific usage.
Browse dictionary entries near stromatolite
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