Environmental factors for around 410 million years ago in the Voyage area
Freshwater West Formation
Interbedded purple, brown and green sandstones and red mudstones with intraformational conglomerates containing calcrete clasts.
Around 410 million years
Environment of rock formation
Flood plain and channel deposits of slow meandering southward flowing rivers
Tropical. Semi-arid. Wet season.
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
Minimum night time temperature
Heat. Dust storms. Extensive floods in wet season.
High in northern sky
Earthquake risk (scale 1 low risk to 9 high risk)
Uplift of areas to NW gives faster rivers.
None in area
Large scorpions. Fish and eurypterids in rivers.
Low growing vascular plants – shallow roots
Days in year