Athletics and Recreation

Albert Formation

Albert Formation


So the drive from Hampton to Sussex along
Highway 1 is roughly equivalent to driving from a floodplain with trees,
out into the middle of a lake 360 million years ago. So here at this first outcrop we are on
the equivalent to a river floodplain with upright trees growing and
occasionally getting flooded by little channel sandstones and
sheetfloods. So we have travelled a few
kilometers east along Highway 1, and that’s equivalent to travelling from
the river floodplain to the lakeshore. And the evidence of the lakeshore is here,
and the presence of wave ripples. Now this is a top surface. The rocks have
all been tilted since they were first deposited on a lakeshore. Sometimes the lakes had a sandy shore,
which then had wave ripples on them. Other times the shoreline was very muddy
and very quiet water, and that water occasionally dried out,
and then the mud dried out, forming a lot of these desiccation cracks. Okay, so here we are in the deeper
part of the lake. The lake was probably fairly steep sided,
so we see up here that these muds, these dark grey muds have slid and
slumped down the side of the lake. Now these muds are very dark, dark grey.
Lots of organic matter in it, and further west of here, these rocks are
found about two and a half kilometers below the surface, and that is a depth
sufficient to heat up the organic matter in here and produce natural gas which is
being extracted at the McCully gas field.


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