QML1396 (Horizon D)
Basic information
Sample name: QML1396 (Horizon D)
Reference: G. J. Price and I. H. Sobbe. 2005. Pleistocene palaeoecology and environmental change on the Darling Downs, Southeastern Queensland, Australia. Memoirs of the Queensland Museum 51(1):171-201 [ER 3684]
Geography
Country: Australia
State: Queensland
Coordinate: 27° 56' S, 151° 51' E
Coordinate basis: estimated from map
Time interval: Late Pleistocene
Section: 3684
Unit number: 2
Unit order: below to above
Ma: 0.083
Age basis: OSL
Geography comments: Site QML1396 is located in the Darling Downs, southeastern Queensland, which encompasses low rolling hills and plains west of the Great Dividing Range.
"QML1396 is exposed laterally over 70 metres in the southern bank of Kings Creek, in the southern Darling Downs".
There is an OSL date for Horizon D of 83000 ± 10000 BP (Price et al. 2011).
"QML1396 is exposed laterally over 70 metres in the southern bank of Kings Creek, in the southern Darling Downs".
There is an OSL date for Horizon D of 83000 ± 10000 BP (Price et al. 2011).
Environment
Lithology: siliciclastic (mixed)
Taphonomic context: fluvial deposit
Habitat comments: "Fluvial sediments of the region consist of clays, silts and sands that are generally derived from the erosion of Mesozoic sandstones and Miocene basalts of the Great Dividing Range".
"The modern Kings Creek catchment is fed by several mainly dry or intermittent watercourses, resulting in a relatively small geographic sampling area".
"As the Pleistocene catchment area was likely not markedly larger than present, it is unlikely that material from QML1396 was subjected to long distance fluvial transport".
"The entire deposit is characterised by a fining-upwards sequence ... with vertebrate fossil material generally restricted to Horizons B and D".
"Horizon D is represented by a series of coarse to fine quartz sand beds that are overlain by laterally discontinuous horizontal and sloping shelly lenses".
"The modern Kings Creek catchment is fed by several mainly dry or intermittent watercourses, resulting in a relatively small geographic sampling area".
"As the Pleistocene catchment area was likely not markedly larger than present, it is unlikely that material from QML1396 was subjected to long distance fluvial transport".
"The entire deposit is characterised by a fining-upwards sequence ... with vertebrate fossil material generally restricted to Horizons B and D".
"Horizon D is represented by a series of coarse to fine quartz sand beds that are overlain by laterally discontinuous horizontal and sloping shelly lenses".
Methods
Life forms: rodents,other large mammals,other small mammals,lizards,snakes,turtles,frogs,fishes,clams,snails
Sampling methods: screenwash
Sample size: 1607 specimens
Sampling comments: "A section was measured representing the entire depositional sequence exposed in the creek bank".
"Fossils were recovered by in situ collecting and sieving of sediment specifically to target smaller specimens".
"Sediments were washed using graded sieves of 10 mm to 1 mm".
"Approximately 700 kg of sediment was processed from Horizon D".
"Fossils were recovered by in situ collecting and sieving of sediment specifically to target smaller specimens".
"Sediments were washed using graded sieves of 10 mm to 1 mm".
"Approximately 700 kg of sediment was processed from Horizon D".
Metadata
Sample number: 3850
Contributor: Benjamin Carter
Enterer: Benjamin Carter
Created: 2022-01-18 16:59:19
Modified: 2023-09-11 10:47:41
Abundance distribution
37 species
14 singletons
total count 1607
extrapolated richness: 73.6
Fisher's α: 6.757
geometric series k: 0.8254
Hurlbert's PIE: 0.5806
Shannon's H: 1.4568
Good's u: 0.9913
Each square represents a species. Square sizes are proportional to counts.
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