Environmental factors for around 432 million years ago in the future Voyage area

Rock Name
Coalbrookdale Formation

Lithology (appearance)
Olive grey to dark blue-grey silty mudstones with some calcareous siltstones, nodular calcareous beds and bentonites.

Period
Silurian – Wenlock

How old
Around 432 million years

Environment  of rock formation
Shallow warm sea on continental shelf. Ash from distant volcanoes.

Climate
Warm tropical / sub-tropical

Latitude
30′ S of Equator

Oxygen as percentage of atmosphere
17% (21% today)

Carbon Dioxide as parts per million of atmosphere composition
3300ppm (around 415ppm today and rising)

Maximum day time temperatures
24’C

Minimum night time temperature
15’C

Sea temperature
24’C

Weather risk
Occasional storms churning up sea floor

Midday Sun
High in northern sky

UV index
8

Earthquake risk (scale 1 low risk to 9 high risk)
7

Tectonic
Continental plate collision to west

Volcano risk
Ash falls and earthquakes – perhaps tsunami

Top predator
Sharks

Animal Life
Rich marine life – bryozoans, corals, crinoids, trilobites

Plant Life
Primitive plants on some land areas – no flowers or grasses

Humidity

Rainfall

Wind
SE?

Day length
21.1 hours

Days in year
414