Environmental factors for around 308 million years ago in the Voyage area

Rock Name
Trenchard Formation

Lithology (appearance)
Grey or pinkish grey quartzose (mainly quartz grains) sandstone. Quartzose conglomerate beds are common at the base of the formation, increasing in thickness and clast (pebbles) size towards the north. Points to a source to the north.

Period
Upper Carboniferous

How old
Around 308 million years

Environment  of rock formation
Sea to S gone. Rapid erosion of uplifted land.

Climate
Equatorial rainforest

Latitude
On the Equator

Oxygen as percentage of atmosphere
35% (21% today)

Carbon Dioxide as parts per million of atmosphere composition
340ppm (around 415ppm today and rising)

Maximum day time temperatures
38’C

Minimum night time temperature
26’C

Sea temperature

Weather risk
Lightning triggering mega forest fires

Midday Sun
Sun overhead no shade, except in rainforest

UV index
10

Earthquake risk (scale 1 low risk to 9 high risk)
6

Tectonic
Elevated areas from Variscan Orogeny

Volcano risk
None in area

Top predator
Megarachne

Animal Life
Arthropods over 2m long. Giant dragonflies

Plant Life
Forests of Calamites, Lepidodendron, Sigillaria

Humidity
High

Rainfall
Heavy thunderstorms

Wind
SE?

Day length
22.7 hours

Days in year
389