The Sea 's Ability Of An Intertidal Rock Platform

1715 WordsAug 18, 20157 Pages
Introduction The sea’s ability to produce an intertidal rock platform was first commented on as early as 1846 by Ramsey, and then decisively classified into four themes by Trenhaile (1980), which is still relevant to scientist studying the formations today. The four themes are: 1) the role of marine and subaerial processes in platform development; 2) morphology of shore platforms; 3) modelling platform development; and 4) measuring rates of erosion (Stevenson 1, 2000). Research has commonly assumed that the origins of the shore platform are wave-cut, however in recent years there has been research into a wider range of platforms and process leading to more theories. Defining and Distinguishing between Shore Platforms In order attempt to distinguish between different types of shore platforms, the most basic form of description is those, which slope seaward, and then those with a distinctive seaward edge characterised by a cliff (Stephenson et al., 2013). Sunamura has helped characterize those cliffs with the use of calling the slope edge a Type A Platform and a Cliff edge and a Type-B Platform, this is represented in Figure 1. Fig. 1. A visual representations of shore platform categories as described by Sunamura (1992) in Kennedy (2015). Morphological Approaches It is a contentious issue amongst researchers as to whether weathering or wave erosion have a bigger role in the development of a shore platform. Bartrum, 1935; Hills, 1972) both regard wave erosion as the
Open Document