OCEAN SCIENCE AND ENGINEERING

p.98, Ben Oostdam's Autobiography, 1965

Thur., Feb.11: Mr.Gowdy picked me up at 07:30; we had some trouble finding de Graaff's house, after which we went to Goodwood to collect Johnson. The airplane was a bit late, so we first had coffee and then went to Vincent at Air Cape to ask for Raubenheimer's radio. On the flight I perused Logan's book "The Namib Desert", and mainly enjoyed the fantastic scenery below. Because of strong SW winds, t the flight took from 09:40 till 13:00.


Next, we were taken by private car to Kapps for lunch with Mr and Mrs Friedrich. We loaded up on film at Mrs Coleman's store, then left by truck for Saddle Hill by 14:40. This was an exhilarating drive through sand dunes and across rockoutcrops with sparse sands and even sparser vegetation, of two types, one resembling Japanese dwarf trees. I took copious photographs. It was a bit hazy and I noted that vegetation increased when we were getting closer to the sea.
Here were large outcrops of schist with pronounced orthoclase crystals. I also caught some beetles who race around the rocks in pairs. Elongated bodies of dune sands, "seifs", ran about parallel with the coast here. The sand blows up vertically along the lee slope, which also has vertical ripples at its surface. Another observation was of flat rocks marked with "stretchmarks" and incipient mounds of sands with coarser sand arcs pointing windwards as opposed to finer in the lee.


The route was marked by tires and other markers, including an old shower head on a pipe. At the end of each seif, there was a strong slope appearing to exceed the nominal angle of repose of abgout 33 degrees. About 17:30 we drove on the surface of a saltpan which constituted an excellent road. At 18:50 we finally reached Hottentot Bay, which boasted 3 fishing boats playing optical illusions. a dead sea lion and very few birds. At 19:30 we arrived at Saddle Hill, where 10 of our rough kids constituted the shore party, including George Erlanger, Pieter van Zijl, Pat Way, and two helicopter pilots with decades of experience, a Norwegian named Knud and a true English bloke who has to remain nameless. We had a quick dinner, than were briefed by George, o.a. about to-day's calamity involving the 'Collinstar' (13 crew, 6 drowned) and the stranding of MDC's mining barge "Colpontoon" - which we plan to view to-morrow.
We ended up the exciting day having a beer with Mr.van Heerden, the CDM manager, then went to our beds in a caravan.


TIDAL Dune-Beach-Offshore Sediments
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