Geology Reference
In-Depth Information
Intermontane troughs
Tectonic mega-element
Region
Areal extent, 1,000 km
2
Average thickness of
sediment cover, km
Sediment cover volume,
1,000 km3
Clay content of sedimentary
section, % of total thickness
Oil and gas complexes
Dominant accumulation
type
Number of discovered oil
and gas fields
Productive interval depth
range, m
Original appraised
hydrocarbons in-place,
MMT
Hydrocarbon occurrence
density, 1,000 T/km
2
Hydrocarbons per unit
volume of sediment cover,
1,000 T/km
3
