A composite fall-slippage model for cliff recession in the sedimentary coastal cliffs
Document Type
Article
Publication Date
7-1-2017
Abstract
© 2016 China University of Geosciences (Beijing) and Peking University A composite fall-slippage model is proposed in this study for the Tertiary sedimentary coastal cliffs of Varkala in the western coastal tract of Peninsular India which are retreating landwards due to the combination of several factors. The fall model in the present study accounts both spring seepage and wave action, resulting in undercutting and this fall affects only the topmost laterite and the just below sandstone in the cliff. Slippage in this area affects all the litho-units and hence the geologic characteristics of all the litho-units are considered for developing the slippage model. This mathematically derived model can be used in other cliffs exhibiting the same morphology as well as the one controlled by the same influencing factors. This model differs from other models in incorporating multi-lithounits as well as multi-notches. Varkala cliffs form a part of the aspiring geopark in the Global Geopark Network and hence a study on the cliff recession is a pressing requirement.
Publication Title
Geoscience Frontiers
Recommended Citation
Sajinkumar, K.,
Kannan, J.,
Indu, G.,
Muraleedharan, C.,
&
Rani, V.
(2017).
A composite fall-slippage model for cliff recession in the sedimentary coastal cliffs.
Geoscience Frontiers,
8(4), 903-914.
http://doi.org/10.1016/j.gsf.2016.08.006
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/6483