0
141.7
Nxb
SANDSTONE
Interbedded lithic & felspathic sandstone, dolomitic in part, dolomitic siltstone, silty dolomite, becoming graphitic from 84m, rare cherty intervals, some vein quartz, rare pytite to 1%.
Strat Unit Name
Burra Group
Strat Unit Description
Siltstone, laminated; shale; sandstone, heavy mineral lamination, quartzose to feldspathic, cross bedding; dolomite, blue-grey to pale pink, lenticular.
GIS Code
N-xb
141.7
152.4
J1
KIMBERLITE
DOLOMITE ROCK
Intrusive rocks of kimberlitic character associated with carbonatites & intruding graphitic silty dolomites.
Strat Unit Name
Jurassic unit 1
Strat Unit Description
Lamprophyric intrusives, including kimberlite.
GIS Code
J-------01
165.2
178.92
Nxb
SILTSTONE
KIMBERLITE
Mainly dolomitic siltstone with sandy interbeds cut by dark green dykes of kimberlitic rock.
Strat Unit Name
Burra Group
Strat Unit Description
Siltstone, laminated; shale; sandstone, heavy mineral lamination, quartzose to feldspathic, cross bedding; dolomite, blue-grey to pale pink, lenticular.
GIS Code
N-xb