Environmental factors for around 285 million years ago in the Voyage area
Clent Formation (Breccia)
Breccia, sub-angular, with red-brown mudstone matrix, clasts predominantly ‘Precambrian-Uriconian’ volcanic rocks and subordinate Lower Palaeozoic rocks.
Environment of rock formation
Harsh desert plain covered in gravel, with debris fans extending from high ground. Intense heat.
Arid. Occasional violent storms giving flash floods.
20′ S of Equator
Oxygen as percentage of atmosphere
35% (21% today)
Carbon Dioxide as parts per million of atmosphere composition
350ppm (around 415ppm today and rising)
Maximum day time temperatures
Minimum night time temperature
Torrential rainstorms. River and coastal flooding. Heat
Sun overhead no shade.
Earthquake risk (scale 1 low risk to 9 high risk)
Formation of Woreestershire graben as crust is subject to tensional forces.
None in area
None known – possible early reptiles
None known in area
Occasional torrential storms
Days in year