Environmental factors for around 310 million years ago in the Voyage area
Rock Name
Coleford Member (a member of the Pennant Sandstone Formation)
Lithology (appearance)
Coarse-grained sandstone with beds of grey and green mudstone with ironstone concretions and coal.
Period
Carboniferous
How old
Around 306 million years
Environment of rock formation
Rain forest, with large areas of decaying vegetation in swamps and buried by sediments deposited by rivers.
Climate
Equatorial
Latitude
On/near Equator
Oxygen as percentage of atmosphere
27% (21% today)
Carbon Dioxide as parts per million of atmosphere composition
450ppm (around 415ppm today and rising)
Maximum day time temperatures
35’C
Minimum night time temperature
18’C
Sea temperature
26’C
Weather risk
Lightning causing mega forest fires – high oxygen levels
Midday Sun
Sun directly overhead
UV index
10
Earthquake risk (scale 1 low risk to 9 high risk)
4
Tectonic
Variscan Mts to south
Volcano risk
None in area
Top predator
Scorpion
Animal Life
Giant dragonflies and other insects
Plant Life
Forests of Lepidodendron, Sigillaria, Calamites
Humidity
Very high
Rainfall
Frequent torrential thunderstorms
Wind
Trade winds SE
Day length
22.7 hours
Days in year
389