From Wood to Stone

From Wood to Stone (HM1AYU)

Location: Petrified Forest National Park, AZ 86028 Apache County
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Country: United States of America
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N 34° 51.869', W 109° 47.46'

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Approximately 225 million years ago, during the Triassic Period, a floodplain existed here - littered with fallen trees. Periodic flooding buried the logs beneath layers of silt. Over time, silica-laden waters filtered through these deposit and petrified the wood by encasing the trees' organic material with minerals.

Iron oxides give petrified wood its distinctive red, yellow, and orange hues; manganese oxides produce blues, purples and deep blacks, while the original carbon produces the shades of gray. Centuries of erosion washed away concealing sediment deposits to expose these remnants of Triassic woodlands.

Could today's woodlands become petrified forest of tomorrow? Geologic forces similar to those of the Triassic period still shape the Earth's surface, and may create the preliminary conditions for future petrification.

Side Bar:
The processes that created petrified wood here ceased millions of years ago. Petrified wood and other fossils are irreplaceable resources to be cherished undisturbed.
Placed ByPetrified National Forest Services
Marker ConditionNo reports yet
Date Added Monday, September 15th, 2014 at 3:23am PDT -07:00
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Locationbig map
UTM (WGS84 Datum)12S E 610507 N 3858681
Decimal Degrees34.86448333, -109.79100000
Degrees and Decimal MinutesN 34° 51.869', W 109° 47.46'
Degrees, Minutes and Seconds34° 51' 52.14" N, 109° 47' 27.60" W
Driving DirectionsGoogle Maps
Area Code(s)928
Closest Postal AddressAt or near 4501-4665 Petrified Forest Rd, Petrified Forest National Park AZ 86028, US
Alternative Maps Google Maps, MapQuest, Bing Maps, Yahoo Maps, MSR Maps, OpenCycleMap, MyTopo Maps, OpenStreetMap

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