Rock unit name
Dominant rock
Lithological summary
Age
brown, laminated siltstone (in upper part), carbonaceous shale, lithic sublabile sandstone, granule conglomerate
Mount Morgan trondhjemite
Dioritoid – Intrusive unit
Middle Devoian
Grey medium-grained hornblende diorite, quartz diorite, gabbro
Gravel, sand and silt; man-made deposits generally associated with landfill or mining (tailings, dumps and rehabilitated areas)
Man-made deposits
Qhh-QLD
Anthropocene
3.1.3 Soils Soils across the project area largely reflect the underlying geologies with Volcanic hills and mountains with eucalypt forest in north-east. The major soil types occurring in the project area based on the Australian Soil Classification mapping are Rudosols. These soils have a low fertility and low water-holding capacity and are often shallow, stony soils with minimal organic matter accumulation on the surface.
3.2
Survey effort
The field survey covered the project area or survey area (refer to Section 1.4.1 for survey limitations).
Conditions during the survey from 7 April – 9 April 2025 (Rockhampton Aero, station 039083) were warm, reaching a peak temperature of 30.1 C and a low of 19.7 C. There was no rainfall during the survey, however there was 168.4mm of rainfall in the week prior to the survey (BOM, 2025).
A summary of survey efforts for flora and fauna is presented in Table 3-3.
Table 3-3
Survey effort
Date
Team
Flora survey effort
Fauna survey effort
7 - 9 April 2025
One ecologist One botanist
94 Weed observations 90 conservation significant species observations 18 RE verifications points 74 rapid flora assessments Timed meanders covering project area and survey area.
4 Fauna breeding places 35 Habitat assessments 123 Photo points 18 Spot Assessment Technique (SAT) searches 157 active searches 5 Habitat Bearing Tree (HBT) assessments
GHD | Heritage Minerals Pty Ltd | 12626510 | Heritage Minerals Mount Morgan
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