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