Iscayachi Formation

Iscayachi Formation
Stratigraphic range: Tremadocian
~488–479 Ma
TypeGeological formation
Thickness1,000 m (3,300 ft)
Lithology
PrimaryShale, sandstone
Location
Coordinates22°00′S 65°00′W / 22.0°S 65.0°W / -22.0; -65.0
Approximate paleocoordinates46°18′S 128°18′W / 46.3°S 128.3°W / -46.3; -128.3
RegionPotosí & Tarija Departments
CountryBolivia
Type section
Named forIscayachi
Iscayachi Formation is located in Bolivia
Iscayachi Formation
Iscayachi Formation
Iscayachi Formation
Iscayachi Formation
Iscayachi Formation (Bolivia)

The Iscayachi Formation, in older literature also referred to as Guanacuno Formation, is an extensive Tremadocian geologic formation of western and southern Bolivia. The shales and sandstones were deposited in a shallow marine to pro-delta environment. The formation reaches a thickness of 1,000 metres (3,300 ft).

Fossil content

The formation has provided the following fossils:

See also

References

  1. 1 2 Suárez Riglos et al., 2018, p.37
  2. ↑ Quebrada de Rota at Fossilworks.org
  3. ↑ Palqui at Fossilworks.org
  4. ↑ Tres Cruces at Fossilworks.org
  5. ↑ Iscayachi Formation at Fossilworks.org
  6. 1 2 Suárez Riglos et al., 2018, p.52
  7. 1 2 Suárez Riglos et al., 2018, p.43
  8. ↑ Suárez Riglos et al., 2018, p.48
  9. ↑ Suárez Riglos et al., 2018, p.53
  10. 1 2 Suárez Riglos et al., 2018, p.45
  11. 1 2 Suárez Riglos et al., 2018, p.51
  12. ↑ Suárez Riglos et al., 2018, p.42
  13. ↑ Suárez Riglos et al., 2018, p.47

Bibliography

Further reading