Figure 6. Geomorphic map of the
Mt Lyford Village area showing
landslides, active shallow sliding,
old slump scarps, old drainage
channels, and active fault traces
mapped by GNS for this review.
The sites of trenches dug across
geomorphic lineaments that are
thought to be fault traces and
slope features are also shown.
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Figure 7. Oblique aerial photo of Mt Lyford Village looking north towards the Amuri Range. This view shows landforms and geological features in the area,
including: the main trace of the Hope Fault, subsidiary fault traces (f), head scarp (hs) and debris (d) of a large prehistoric landslide (pls) in Tertiary mudstone
(with artificial (man-made) pond - ap), old slump scarps (osl), and drainage channels (dc) on the dissected old fan surface flanking the range front. To the
northwest of the village the road (rd) to Mt Lyford Skifield crosses a large rock avalanche scar (ra) and debris (d).
[GNS Photo: GH0315, 2 March 2006]
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Figure 8. Aerial photo of Mt Lyford with a closer view of active faults and slope features shown in Fig. 7: the main and subsidiary (f) traces of the Hope Fault, large
landslide (pls, hs, d), old slump scarps (osl), and sites of trenches (T-B-D; T-2,3, ) dug across drainage channels (dc) and faults (f). [GNS Photo: GH0351, 2 March 2006]
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Figure 9. Aerial photo of Mt Lyford Village showing active faults and slope features, including Hope Fault traces (f), large landslide (pls, hs, d), old slump scarps
(osl), drainage channels (dc), wet areas (wa), man-made ponds (ap), and trenches sites (TA-D; T1-3). Note that the heads of Lulus Creek and Whales Back
Stream have been dextrally offset by the main trace of the Hope Fault (at dx1 and dx2 – also evident on Figs. 2 and 3).
[GNS Photo: GH0310, 2 March 2006]
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Figure 10. Aerial photo of Mt Lyford Village showing another view of faults and slope features: subsidiary fault traces (f), large landslide (pls, hs, d), old slump
scarps (osl), drainage channels (dc) and wet area (wa), man-made pond (ap), and three trenches sites (T-B,C; T-3 ).
[GNS Photo: GH0378, 2 March 2006]
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Figure 11. Aerial view of trench sites (T-B,C; T-3) across a fault trace (f) and drainage channels (dc) at Mt Lyford Village. Old slump scarp (osl) on the side of
unnamed stream also visible. The main channel draining into Lulus Creek (site of trench T-B) is a shallow trough-like feature, with no bounding scarps or vertical
offset across it. The channel to the right (trench T-C) is broader and more equivocal as the area has been modified by construction of Mt Lyford Avenue and a
pond (ap). This short feature is possibly a subsidiary fault similar to that in trench T-5, and is mapped as such (see Figs. 6, 14). [GNS Photo: GH0338, 2 March 2006]
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Figure 12. Aerial photo of two subsidiary fault traces (f) and drainage channels (dc) on the broad interfluve surface northeast of Lulus Creek showing sites of
trenches (T-1, 2; T-D) dug across these features. The northern drainage channel (left) is deflected (into Lulus Creek) by a fault trace which has ponded drainage
behind it on the downthrown side. The drainage channel to the right is a shallow trough-like feature, with no obvious bounding scarps or vertical offset across it.
Trenching across this entire feature (at T-D) showed no subsurface offsets or disturbance of the soil deposits (see Fig. 15).
[GNS Photo: GH0395, 2 March 2006]
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Figure 13. Aerial photo of Mt Lyford Village looking southeast. A subsidiary trace of the Hope Fault (f) is visible at the top of Tinline Terrace, along with old slump
scarps (osl), drainage channels (dc), pond (ap), trenches (TB,C; T-3,6), and future residential development areas (FRD).
[GNS Photo: GH0366, 2 March 2006]
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Figure 14. Aerial photo showing the main subsidiary trace of the Hope Fault which has disrupted and ponded (p) drainage. A lineament that trends at a high
angle to the fault has also been shown (by trenching) to be a subsidiary fault (f). Note small fault scarp (s) and trench sites (T 4-6).
[Photo: GH0390, 2 March 2006]
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