Environmental factors for around 480 million years ago in the Voyage area
Quartzite, pale grey and purple (ranging from lithic arenite, subarkose to quartzite) and thin beds of fissile mudstone and possibly tuff.
Around 480 million years
Environment of rock formation
Beach (littoral) or near shore (sub-littoral)
Warm – although forming at 55′ south of Equator, Earth was in a hot house state
55′ south of Equator
Oxygen as percentage of atmosphere
19% (21% today)
Carbon Dioxide as parts per million of atmosphere composition
4400ppm (around 415ppm today and rising)
Maximum day time temperatures
Minimum night time temperature
High winds. Rough seas. Heat.
Sun low in northern sky
Earthquake risk (scale 1 low risk to 9 high risk)
On northward moving plate with a subduction zone in front.</
Possibly to NW – ash deposits
Giant Cephalopod – in the sea
Possibly some arthropods
Primitive plants appearing.
Days in year