Groundwater resources in a fractured-rock aquifer, Conglomerate of Portofino

Abstract

Hydrogeological mapping is a key tool for groundwater resource management. Generally, hydrogeological maps focus mainly on porous or karst aquifer at large scale. In a fracturedrock aquifer, the groundwater flow path is not immediately deductible due to the intrinsic complexity of fracture systems. Then, it is of crucial importance collecting a complete dataset describing the site of interest: fault and strata patterns, geomorphological features, occurrence of springs. Here we present the hydrogeological map at 1:10,000 scale of the fractured rock aquifer of Conglomerate of Portofino (Italy). The graphical information contained in this map is based on the authors' field survey and the revision of papers written for academic purposes and technical reports. The aim of the research is to achieve a useful tool for land planning, conservation of groundwater resource and geo-hydrological risk reduction in the unique area of the Natural Park of Portofino.

Heatwaves and physiological discomfort: the strange case of the year 2022 on the ‘Kiss Pass’ of Portofino Natural Park, Italy

“…Average rainfall ranges from 1200mm along the coast to more than 1700mm at high elevations (Terrone et al ., 2021) and precipitation is spread year‐round, with a peak in autumn and a minimum in summer. Average temperature varies between 15°C along the coast up to just less than 13°C on the top.…”

“…Southerly winds are very rich in water vapour: as they meet the natural barrier of the Promontory and gain elevation the temperature drops causing the condensation of a significant amount of water, particularly in the summer. This process partly feeds high‐altitude perennial springs (Terrone et al ., 2021). Land use is characterised by large stretches of high and rocky coast with Mediterranean shrubs in the southern side and localised terraced areas with olive trees and occasional conifer woods.…”

Study on Seepage Characteristics of Grouting Slurry for Water-Absorbing Mudstone with Rough Fissure

“…The interaction between rocks and water has always been a hot topic of research both domestically and internationally, such as the mechanical properties of water-bearing rocks [3][4][5], the water-rock coupling seepage characteristics [6,7] and the softening mechanism of rocks when encountering water [8][9][10]. Mudstone is a common special soft rock system, and has a certain water absorption ability because its mineral composition contains a large amount of clay minerals such as kaolinite, illite and montmorillonite, and due to capillary phenomenon and the presence of internal fissures in mudstone, the fissured mudstone exhibits strong water absorption [11].…”