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Cattamarra Coal Measures

Coordinates: 30°18′S 115°12′E / 30.3°S 115.2°E / -30.3; 115.2
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Cattamarra Coal Measures
Stratigraphic range: Pliensbachian-Aalenian
~190–172 Ma
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
Region Western Australia
Country Australia
ExtentPerth Basin
Cattamarra Coal Measures is located in Australia
Cattamarra Coal Measures
Cattamarra Coal Measures (Australia)

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

Description

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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

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References

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  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

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