Cattamarra Coal Measures

Cattamarra Coal Measures
Stratigraphic range: Pliensbachian-Aalenian
~
TypeGeological formation
Sub-unitsBitter Pool Claystone
UnderliesCadda & Yarragadee Formations
OverliesEneabba Formation, Lesueur Sandstone
Thickness1,500 m (4,900 ft)
Lithology
PrimarySandstone
OtherSiltstone, claystone, coal
Location
Coordinates30°18′S 115°12′E / 30.3°S 115.2°E / -30.3; 115.2
Approximate paleocoordinates39°18′S 56°12′E / 39.3°S 56.2°E / -39.3; 56.2
RegionWestern Australia
CountryAustralia
ExtentPerth Basin
Cattamarra Coal Measures (Australia)

The Cattamarra Coal Measures is an Early Jurassic geological unit in Western Australia.[1]

Description

They are part of the Perth Basin, and are a sequence of non-marine, probably fluvial sandstones, shales and silts including bituminous coal, and are up to 300 m thick. The Cattamarra Coal Measures conformably overly the Eneabba Formation.[2]

The Cattamarra Coal Measures constitute an unconventional tight gas reservoir.[3]

There are well preserved fossil insects from the Jurassic age in the deposit.[4]

See also

References

  1. ^ "Cattamarra Coal Measures". Australian Stratigraphic Units Database. Geoscience Australia. Retrieved 6 December 2015.
  2. ^ Suwarna, Nana (1993), Petrology of Jurassic coal, Hill River area, Perth Basin, Western Australia, Curtin University of Technology, Department of Applied Geology, retrieved 20 October 2016 - the summary to this thesis in Trove is a detailed overview
  3. ^ Rezaee, M. Reza (2011), Complexity in tight gas sand development—an example from Perth Basin, Western Australia, Department of Petroleum Engineering, retrieved 12 December 2015
  4. ^ Martin, Sarah Kerry; Monash University. School of Geosciences (2008), Early Jurassic insects of the Mintaja locality, Cattamarra Coal Measures, Perth basin, Western Australia, retrieved 20 October 2016

Further reading