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petrified wood
(redirected from Petrified log)

    Also found in: Wikipedia 0.06 sec.

petrified wood

Fossil formed by the infiltration of minerals into cavities between and within cells of natural wood, usually by silica (silicon dioxide, SiO2) or calcite (calcium carbonate, CaCO3). Often this replacement of organic tissue by mineral deposits is so precise that the internal structure as well as the external shape is faithfully represented; sometimes even the cell structure may be determined.



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Also, the thick layer of sediment atop the ash contained charred, petrified logs up to 3 feet thick, which had burned in the fire and fell later.
Did ancient wildfire end in barbecue? by S.P. / Science News
Later, the area was uplifted by forces of nature, cracking the petrified logs as neatly as if someone had sawed them.
TRAVELERS DISCOVER THE CURSE OF ARIZONA'S PETRIFIED FOREST by Daily News (Los Angeles, CA)
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