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Table Mountain Sandstone (TMS), formally known by its geological name the Peninsula Formation Sandstone, is a group of rock formations within the Cape Supergroup sequence. While the term "Table Mountain Sandstone" remains widely used, it is no longer formally recognized; the correct geological name is "Peninsula Formation Sandstone," which is ...
A deposit, known as the Peninsula Formation (also often referred to as Table Mountain Sandstone), consisting of thickly layered quartzitic sandstone, with a maximum thickness of 2000 m, was laid down. These sandstones are very hard, and erosion resistant.
Anticlinal traps are formed by folding of rock. For example, if a porous sandstone unit covered with low permeability shale is folded into an anticline, it may form a hydrocarbons trap, oil accumulating in the crest of the fold. Most anticlinal traps are produced as a result of sideways pressure, folding the layers of rock, but can also occur ...
The Atlantic side of the Back Table is known as the Twelve Apostles, which extends from Kloof Nek (the saddle between Table Mountain and Lion's Head) to Hout Bay. The eastern side of this portion of the Peninsula's mountain chain, extending from Devil's Peak , the eastern side of Table Mountain (Erica and Fernwood Buttresses), and the Back ...
Convolute bedding forms when complex folding and crumpling of beds or laminations occur. This type of deformation is found in fine or silty sands, and is usually confined to one rock layer. Convolute laminations are found in flood plain, delta, point-bar, and intertidal-flat deposits. They generally range in size from 3 to 25 cm, but there have ...
The rock sequence most closely associated with the park is the Old Red Sandstone from which most of its mountains are formed. The older parts of the succession, in the northwest, were folded and faulted during the Caledonian orogeny. Further faulting and folding, particularly in the south of the park is associated with the Variscan orogeny.