Please use this identifier to cite or link to this item:
Authors: Madonia, P.* 
Federico, C.* 
Favara, R.* 
Title: Isotopic composition of rain- and groundwater at Mt. Vesuvius: environmental and volcanological implications
Issue Date: Sep-2014
Series/Report no.: /72(2014)
DOI: 10.1007/s12665-014-3110-3
Keywords: Groundwater
Orographic cloud
Oxygen isotopic composition
Subject Classification03. Hydrosphere::03.04. Chemical and biological::03.04.07. Radioactivity and isotopes 
Abstract: The present work reports on the isotopic characterization of rainfall and groundwater at Mt. Vesuvius. Values of d18O, monthly measured on rain samples collected during the period 2002–2004 in a rain-gauge network composed of 10 stations, were compared with meteorological and DEM data. Air temperature, controlled by the local orographic structure, was identified as the main factor influencing rain isotopic composition. Another important role is played by orographic clouds, whose condensation over the top of Mt. Vesuvius is responsible for anomalously high d18O values recorded in rain samples from the summit area of the volcanic edifice. A spatial model of rain isotopic composition, based on a 3D distribution of temperature derived by a 1 9 1 km DEM, was implemented and used for calculating the theoretical isotopic signature of seepage, further compared with data measured in the groundwater monitoring network. The analysis evidenced the role of local meteoric recharge as the main source feeding Mt. Vesuvius aquifers. The unique exception is the Olivella drainage gallery, located on the north-eastern flank of the volcanic edifice, whose isotopic composition is slightly more positive than the one expected for its altitude, likely caused by both evaporation processes and mixing with condensed hydrothermal vapor.
Appears in Collections:Papers Published / Papers in press

Files in This Item:
File Description SizeFormat 
EES-VES-ISO.pdfMain text2.41 MBAdobe PDFView/Open
Erratum-VES-ISO-EES.pdfErratum151.54 kBAdobe PDFView/Open
Show full item record

Page view(s)

Last Week
Last month
checked on Jun 24, 2018


checked on Jun 24, 2018

Google ScholarTM