Please use this identifier to cite or link to this item:
Authors: Bini, M.* 
Isola, I.* 
Ribolini, A.* 
Pappalardo, M.* 
Favalli, M.* 
Ragaini, L.* 
Zanchetta, G.* 
Title: Abrasive notches along the Atlantic Patagonian coast and their potential use as sea level markers: the case of Puerto Deseado (Santa Cruz, Argentina).
Journal: Earth Surface Processes and Landforms 
Series/Report no.: /39(2014)
Publisher: Wiley-Blackwell
Issue Date: 2014
DOI: 10.1002/esp.3612
Keywords: notch; rocky coast; sea level marker; Patagonia; Argentina
Subject Classification01. Atmosphere::01.01. Atmosphere::01.01.02. Climate 
Abstract: Patagonia Argentina is a key area for the study of sea level changes in the southern hemisphere, but the availability of reliable sea level markers in this area is still problematic. In fact the storm deposits (beach ridge) commonly used here to reconstruct past sea level oscillations introduce a wide error. Along the Puerto Deseado coast (Santa Cruz), morphometric analyses of 11 features were carried out using traditional measurement tools and a digital software-based method (tested on one selected feature) with the aim to investigate the possibility of their use as sea level markers. By undertaking accurate topographic profiles we identified the relationship between notches and current sea level. In detail, we identified two clusters of notch retreat point elevations, with a very low internal variability. The lower was located a little below the mean high tide level (mHT) and the upper located at least 0.5m above the maximum high tide level (MHT). Field observations of tidal levels and the position of notches suggest that the lower notches are active and the upper are inactive. This study on the abrasive notches attests their quality as sea level markers and opens up the use of fossil abrasive notches as palaeo sea level markers because the error linked to these features is substantially smaller than that introduced by beach ridges commonly used in the study area
Appears in Collections:Article published / in press

Files in This Item:
File Description SizeFormat Existing users please Login
2014_Bini_al_Notches_esp.pdf2.38 MBAdobe PDF
Show full item record


checked on Feb 10, 2021

Page view(s)

checked on Jul 3, 2022


checked on Jul 3, 2022

Google ScholarTM