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Blouberg
on the north side of Table Bay
Outcrops of Malmesbury Group greywackes
and shales |
Steeply
plunging tight folds in the Malmesbury Group at Blouberg |
Close-up
of a fold axis in the Malmesbury Group at Blouberg |
Flat
veins of white quartz cutting greywackes of the Malmesbury Group, Blouberg |
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| Flat
veins of white quartz cutting greywackes of the Malmesbury Group, Blouberg |
Red
lenses of mafic volcanics within the Malmesbury Group, Blouberg |
Redeposited
volcanic conglomerate within the Malmesbury Group, Blouberg |
Discolouration
of the red volcanic horizon along a fault within the Malmesbury Group,
Bouberg |
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| View
south from Gabbro Point across to Yzerfontein |
Layered
gabbros of the Yzerfontein intrusive complex, Gabbro Point |
Detail
of phase layering in the Yzerfontein gabbro |
Phase
layering (plagioclase and clinopyroxene) in the Yzerfontein gabbro |
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| Orphaned
seal pup, Gabbro Point, Yzerfontein |
Orphaned
seal pup, Gabbro Point, Yzerfontein |
Rusty
gossan s developed by weathering of sulphide veins in diorite, Die Eiland,
Yzerfontein |
Cross-cutting
sulphide and epidote veins in altered diorite, Die Eiland, Yzerfontein |
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| Cross-cutting
sulphide and epidote veins in altered diorite, Die Eiland, Yzerfontein |
Cross-cutting
granite and epidote veins in altered diorite, Die Eiland, Yzerfontein |
Pink
granite veins in diorite, Die Eiland, Yzerfontein |
Gabbro
and pyroxenite xenoliths in granite, Die Eiland, Yzerfontein |
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| Southern
part of Kraal Bay, Langebaan Lagoon |
Steeply
cross-bedded fossil dunes of the Langebaan Formation |
Outcrops
of cross-bedded fossil dunes along the shores of Langebaan Lagoon |
High
spring tide laps up against cliffs of dune rock, Langebaan Lagoon |
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| Negotiating
the flood tide in Langebaan Lagoon |
Negotiating
the flood tide in Langebaan Lagoon |
Dune
bedding in the Langebaan Formation |
Pulpit
Rock, a sea stack remnant of fossil dunes, Langebaan lagoon |
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| Pulpit
Rock, a sea stack remnant of fossil dunes, Langebaan lagoon |
Outcrops
of Hoedjies Punt granite at the entrance to Saldanha Bay |
Contact
beween the Hoedjies Punt granite (G1) and Saldanha quartz porphyry (G2) |
Mussel
beach at the Bomsgat |
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| Xenolith
of G1 granite in G2, Bomsgat |
Contact
between G1 and G2 granites, Bomsgat |
Inclined
contact between G1 (right) and G2 (left) granites, Bomsgat |
Banding
developed within the G2 granite along its contact with G1, Bomsgat |
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| View
up the mussel shell beach to the Bomsgat, a sea cave |
Erosion
of the G1 granite along a fracture has produced the Bomsgat, a sea cave |
The
roof of the Bomsgat is a sequence of Quaternary surficial sediments |
Trish Doyle explaining
the geology of the Bomsgat
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| Trish
Doyle explaining with the aid of histrionics the geology of the Bomsgat |
West
side of Hoedjiespunt peninsula overlooking the entrance to Saldanha Bay |
West
side of Hoedjiespunt peninsula overlooking the entrance to Saldanha Bay |
View
north from the Bomsgat trail across Brandy Bay, with the vegetated fossil
dunes overlying the shoreline outcrops of Saldanha quartz porphyry |
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| Saldanha
quartz porphyry outcrops at Brandy Bay |
Visit
to the fossil excavation site at the Langebaanweg fossil park |
View
across the open pit mine workings of Chemfos, who extracted phosphate at
Langebaanweg |
Sidewall
of the Chemfos open pit exposing the surficial cover sediments above the
phosphate zone, Langebaanweg |
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| Fabric
shelter over the fossil excavation site, Langebaanweg |
Fossil
excavation site at Langebaanweg |
Fossil
excavation site at Langebaanweg |
The
fossil pavement numerous bones of ancient mammals |
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| Fossil
bones of Sivatheres - giraffe-like mammals |
Fossil
bones of Sivatheres - giraffe-like mammals |
Fossil
bones of Sivatheres - giraffe-like mammals |
Jawbone
of the a large Sivathere, Langebaanweg fossil park |
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| Jawbone
of the a large Sivathere, Langebaanweg fossil park |
Jawbone
of the a large Sivathere, Langebaanweg fossil park |
Leg
bones of Sivatheres, Langebaanweg fossil park |
Sieve
worktables are used to collect small fossil remains from the sandy sediments,
Langebaanweg |
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| Hard
at work sieving through the fossiliferous sands, Langebaanweg fossil park |
Hard
at work sieving through the fossiliferous sands, Langebaanweg fossil park |
Close
up view of the bone fragments exposed by sieving the sands at the Langebaanweg
fossil park |
Doug
Anderson explaining the geology of the Piekenierskloof Pass |
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| Coarse
conglomerates cross-bedded pebbly sandstones of the Piekenierskloof Formation
forms of the base of the Cape Supergroup |
Piekenierskloof
Formation |
Coarse
pebbly sandstones of the Piekenierskloof Formation |
View
from Piekenierskloof Pass across the wheatfields of the Swartland, at numerous
small hummocks or heuveltjies |
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| Negotiating
the storm lashed farm tracks of Sevilla, between the Pakhuis Pass and Wuppertal
in the northern Cederberge |
Busdriver
John |
Entrance
to Botterkloof Pass between Doringbos and Nieuwoudtville |
Thickly
bedded fluvial sandstones of the Bokkeveld Group, Botterkloof Pass |
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| Finely
bedded sandstones and siltstones marking the transition zone between formations
of the Bokkeveld Group |
Slick
wet roads across the Karoo are a menace to buses |
Stuck
in the wilderness - somewhere between Doringbos and Nieuwoudtville |
Loss
of traction on the wet mud surface of the road leads to sideways sliding
into the surrounding veld |
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| Braving
the storm to complete a group photo of the intrepid party |
Futile
attempt to push the bus from the muddy clutches of the Karoo |
Lunch
at the top of Botterkloof Pass after successfully extricating from the
bog |
Removal
of the front bumper in readiness for towing up the wet inclines in the
road |
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| Lunch
format |
Approaching
the wet incline for another uphill run |
The
muddy tracks of previous failures at negotiating the upslopes |
Rescue
at last with the appearance of a substantial farm tractor |
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| Hooking
the tow chain up to the tractor |
Oorlogskloof
glacial pavement |
Deep
sriations cut in soft sand by ice sheets during the Permian-Carboniferous
Gondwana glaciation, Oorlogskloof |
Preserved
soft-sediment slumping down the slopes of glacial scours, Oorlogskloof
pavement |
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| Bulldoze
structure in a glacial groove, signifying right to left transport |
Oorlogskloof
glacial pavement |
Springbok
Atlas buses can take you anywhere! |
Downed
stone pines after a late winter storm, Pine Forest Resort, Ceres |
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| Large
pine uprooted next to the golf course, Pine Forest Resort, Ceres |
Large
pinse uprooted next to the golf course, Pine Forest Resort, Ceres |
Pine
leaning on the gynamsium, Pine Forest Resort, Ceres |
Sixty-plus
years on site, until 2001 when the old pine falls foul of its last winter
storm |
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| Conscientious
response to the vast quantity of mud tracked into the bus during the storm-ridden
excursion |
Conscientious
response to the vast quantity of mud tracked into the bus during the storm-ridden
excursion |
Conscientious
response to the vast quantity of mud tracked into the bus during the storm-ridden
excursion |
Preliminary
introduction from Trish Doyle at the Gydo Pass fossil site |
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| Trish
Doyle explaining the stratigraphic setting of the Gydo Pass fossil site |
Trish
Doyle explaining the stratigraphic setting of the Gydo Pass fossil site |
Gydo
Pass fossil site, north of Ceres |
Cluster
of Brachiopod fossils within the Bokkeveld shales at Gydo Pass |
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| Brachiopod
fossils in the Bokkeveld shales at Gydo Pass |
Brachiopods
and Crinoids in the Bokkeveld shales at Gydo Pass |
Student
enthusiasm directed at the Gydo Pass fossil site in the Bokkeveld shales |
Searching
for Trilobites and other marine fossils in shales of the Bokkeveld Group
at Gydo Pass |
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| Fossil
hunting at Gydo Pass |
Single
Brahiopod impression in the Bokkeveld shales at Gydo Pass |
Fold
structures in the Witteberg Group sandstone strata, Karoopoort |
Fold
structures in the Witteberg Group sandstone strata, Karoopoort |
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| Doug
Anderson covering the Witteberg Group stratigraphy, Karoopoort |
Dip
and strike of the Witteberg sandstone strata, Karoopoort |
Dip
slope exposures of Witteberg Group sandstones with Spirophytum trace fossil
impressions |
Outcrops
of Dwyka Tillite in the foreground with Witteberg Group strata in the background
towards Karoopoort |
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| Block
of Dwyka Tillite, north of Karoopoort |
Inspection
of Dwyka Tillite, north of Karopoort |
Detail
of the Dwyka Tillite sedimentary texture, large clasts floating in a clay
matrix |
Dwyka
Tillite texture, numerous exotic blocks of many different lithologies |
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| Dwyka
Tillite |
Dwyka
Tillite |
View
south into Karoopoort, with Witteberg sandstones building the surrounding
mountains |
Witteberg
Group strata in the Matroosberg area |
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| Irregular
folds developed in the Witteberg strata, Matroosberg |
Snow
covered Matroosberg in the northern Hex River mountains, built of Table
Mountain Group sandstones |
Matroosberg
in the Hex River mountains, from the N1 highway between Touws River and
De Doorns |
Nardouw
Subgroup strata with zig-zag parasitic folds, Burgers Pass |
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| Overturned
folds in the Table Mountain and Bokkeveld Groups, Burgers Pass |
Parasitic
zig-zag folds superimposed on the anticlinal limb of Nardouw strata, Burgers
Pass |
Contact
between Nardouw Subgroup sandstones (left) and shales of the Cedarburg
Formation (right), Cogmans Kloof |
Cedarburg
Formation shales in Cogmans Kloof Pass |
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| Vertical
sandstone strata of the Nardouw Subgroup, Cogmans Kloof Pass |
Parasitic
zig-zag folds superimposed on vertical strata, Nardouw Subgroup, Cogmans
Kloof Pass |
Ripple
marks exposed on a sandstone bedding plane, Peninsula Formation, Cogmans
Kloof Pass |
Intensely
foliated micaceous phyllites of the Malmesbury Group, Cogmans Kloof Pass |
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| Phyllites
of the Malmesbury Group forming the basement to the Table Mountain Group,
Cogmans Kloof Pass |
Rotated
angular unconformity between the Malmesbury Group metasediments (right)
and the Peninsula Formation sandstones (left), Cogmans Kloof Pass |
Rotated
angular unconformity between the Malmesbury Group metasediments (right)
and the Peninsula Formation sandstones (left), Cogmans Kloof Pass |
Class
of 2001 at the Cogmans Kloof unconformity site |
