Environmental factors for around 240 million years ago in the Voyage area

Rock Name
Helsby Formation (old name Bromsgrove Sandstone)

Lithology (appearance)
Fine- to medium-grained, cross-bedded and flat-bedded sandstones. Fluvatile (water) and aeolian (wind) origin.

Period
Triassic

How old
Around 240 million years

Environment  of rock formation
Braided rivers crossing semi-arid land. Rivers often seasonal. Some dunes.

Climate
Semi-arid with seasonal rainfall giving flash floods

Latitude
20′ N of 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
40’C

Minimum night time temperature
15’C

Sea temperature

Weather risk
Flash floods. High temperatures.

Midday Sun
Sun high in northern sky

UV index
8

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

Tectonic
Midst of supercontinent Panagea

Volcano risk
None in area

Top predator
Bromsgroveia

Animal Life
Triassic reptiles e.g. Bromsgroveia

Plant Life
Pine like trees growing close to main river channels

Humidity
Low

Rainfall
Seasonal

Wind
Strong hot dry E to NE winds

Day length
23.2 hours

Days in year
376