Environmental factors for around 410 million years ago in the Voyage area

Rock Name
Fynnon Limestone

Lithology (appearance)
Silicate-conglomerate, Calcite-cemented (calcrete).

Period
Devonian

How old
Around 410 million years

Environment  of rock formation
Semi-arid conditions, seasonal rainfall.

Climate
Tropical. Semi-arid. Wet season.

Latitude
21′ S of Equator

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

Carbon Dioxide as parts per million of atmosphere composition
3500ppm (around 415ppm today and rising)

Maximum day time temperatures
35’C

Minimum night time temperature
15’C

Sea temperature
24’C

Weather risk
Heat. Dust storms. Extensive floods in wet season.

Midday Sun
High in northern sky

UV index
8

Earthquake risk (scale 1 low risk to 9 high risk)
3

Tectonic
Crust of area coming under compressional forces.

Volcano risk
None in area

Top predator
Scorpions

Animal Life
Scopions. Jawless fish in rivers.

Plant Life
Low growing vascular plants – shallow roots

Humidity
Low

Rainfall
100-500mm per year in wet season

Wind
SE

Day length
21.4 hours

Days in year
410