Stromatolite meaning

strō-mătl-īt
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A usually rounded or columnar sedimentary structure consisting of alternating layers of carbonate or silicate sediment and fossilized microbial mats, produced over geologic time by the trapping, binding, or precipitating of minerals by groups of microorganisms, primarily cyanobacteria.
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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.
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A dome-shaped structure consisting of alternating layers of carbonate or silicate sediment and fossilized algal mats. Stromatolites are produced over geologic time by the trapping, binding, or precipitating of sediment by groups of microorganisms, primarily cyanobacteria. They are widely distributed in the fossil record and contain some of the oldest recorded forms of life, from over three billion years ago. They continue to form today especially in western Australia.
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(geology) A laminated, columnar, rock-like structure built over geologic time by microorganisms such as cyanobacteria.
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Origin of stromatolite

  • Late Latin strōma strōmat- covering stroma –lite

    From American Heritage Dictionary of the English Language, 5th Edition