Environmental factors for around 299 million years ago in the Voyage area
Rock Name
Haffield Breccia (also called Permian Breccia and may be equivalent to Clent Breccia in Birmingham area)
Lithology (appearance)
Breccia – angular fragments – in a red-brown mudstone matrix. Clasts (the fragments) are mainly Precambrian volcanic rocks.
Period
Permian (possibly very end of Carboniferous)
How old
Around 299 million years
Environment of rock formation
Desert, hot, occasional violent torrential rain, producing flash floods that spread rock debris over plain.
Climate
Desert
Latitude
20′ N of Equator
Oxygen as percentage of atmosphere
26% (21% today)
Carbon Dioxide as parts per million of atmosphere composition
1000ppm (around 415ppm today and rising)
Maximum day time temperatures
50’C
Minimum night time temperature
-4’C (deserts go very cold at night due to clear atmosphere)
Sea temperature
Weather risk
Violent flash floods. Extreme heat. No shade
Midday Sun
Sun high in southern sky
UV index
10
Earthquake risk (scale 1 low risk to 9 high risk)
4
Tectonic
Midst of the vast super continent Panagea.
Volcano risk
None in area
Top predator
Little life about?
Animal Life
Possibly the odd reptile . end Permian Mass Extinction
Plant Life
Few conifers in areas where playas (temporary lakes) frequently form.
Humidity
Low
Rainfall
Extreme during short lived storms
Wind
SE
Day length
23.6 hours
Days in year
413