On the SE side of Lake Bonney, immediately adjacent to and near the snout of the Hughes Glacier; a bouldery gully alongside the margin of the Hughes Glacier; near the northern end at an outcrop of reddish brown scoria; approximately 15m from the glacier front
Altitude:
345 m
Aspect:
NW
Slope:
6 °
Location Data
Observer
IBC
GGC
GPS
No
Latitude Longitude DMS
77° 43.7' S 162° 26.8' E
77° 43' S 162° 34' E
Latitude Longitude DD
-77.7283 162.4470
-77.717 162.567
Latitude longitude precision DD
0.0008 0.0008
0.008 0.008
Locality
Taylor Dry Valley, McMurdo Dry Valley region near Lake Bonney
Survey
USGS 1:50,000 Antarctic Topo. Ser. Lake Bonney Quadrangle
Climate
Soil climate zone:
Inland Mountain
Estimated mean annual temperature:
-23
°C
Frozen ground depth:
0 cm
Frozen type:
Frozen comment:
Geology
Geological setting:
Scoria cones occur in numerous places in Taylor Valley and provide useful markers for determining ages of the glacial deposits; this small occurrence at the edge of the Hughes glacier is overlain by recent till
Patterned ground:
Nil
Surface weathering or surface features:
Weakly disaggregated bedrock with some surface salt precipitations
Soil
Soil parent material:
Reddish scoria, partly disaggregated from in situ flow material
brown to dark brown (10YR 4/3) granular gravel; loose; many surface salt precipitations; rock particles angular and unstained; rock fabric partly crumbly; sharp boundary, on firm reddish brown basalt