Once the site of a major Iron Age hillfort, now famous for its geological features, Mam Tor lies in the Peak District approximately 2km north-west of the village of Castleton, Derbyshire. Mam Tor is a textbook example of a landslide with its distinctive landslide characteristics; It is very famous among geologists and scientists. The A625 Manchester to Sheffield built in 1819 twice intersects the main part of the landslide; it was definitively closed in 1979 due to repeated landslide movements. The landslide is a rotational landslide with a large debris flow at the foot (British Geological Survey, 2014). It should be noted that the name Mam Tor is given to the highest point of the landslide which sits on the top of a sandstone ridge running between the southern area called Hope Valley and the northern area called Edale. The geology of the main strata consists mainly of micaceous sandstone to the south and shales to the north (Skempton, et al., 1989). The landslide occurred when a section of the Namurian Edale claystone and the overlying Mam Tor sandstone collapsed causing an 80 m high landslide; it is estimated that this event began between 3000 and 4000 years ago (Arkwright, et al., 2003). The landslide is still active today. Over the last few hundred years, the landslide movement has progressively shifted. Numerous research papers have been published containing measurements and trends of landslide movement. Donnelly (2006) provided a comprehensive overview of the movements of the landslide and surrounding areas, paying particular attention to the effects on the A625. The road began to crack around 1910 with 2.5m of subsidence measured in January 1915... middle of paper... negative is the cost. Some equipment required to monitor movement and water levels can be extremely costly in terms of time and money, for example TDR can be expensive and potentially easily damaged by water (Kane & Beck, 2013). Additionally, you may need to hire experts in specific areas of monitoring, which can also lead to additional expenses. Overall, probably the best method to use to characterize, monitor and predict slides at Mam Tor would be a combination of all three methods. Desk study information and field data can be entered into a computer and used to create detailed GIS maps. GIS maps can be used effectively to characterize the type of landslide that has occurred or is occurring, as well as continuous monitoring of the slide and surrounding areas, and could potentially assist in predicting any future movement or further slides.
tags