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Geological development of a gypsum lake formed at the beginning of the 20th century in central Sicily, Italy: integration of historical data with modern survey techniques
Author(s)
Language
English
Status
Published
JCR Journal
JCR Journal
Peer review journal
Yes
Title of the book
Issue/vol(year)
sup 1 / 22 (2006)
Publisher
Taylor & Francis
Pages (printed)
S333–S347
Issued date
2006
Alternative Location
Abstract
Alimnological investigationwas carried out on the small, endorheic lake, called Lake Sfondato, located
in central Sicily (Italy). All the aquatic environments in the central part of the island are rich in salt,
with conductivity values above 5mS cm−1, and are characterized by high alkalinity values and hard
waters. In addition, due to intensive agriculture, many of these ecosystems have experienced a strong
anthropogenic eutrophication over the last decades. In order to better understand the functioning of
these peculiar environments, the morphology, hydrology, and geochemistry, as well as several selected
physical and biological characteristics of Lake Sfondato, were studied in the years 2003 and 2004. The
results showed that the water body is characterized by meromixis, with permanent water stratification.
This condition reduces the eutrophication processes within the lake, which have kept the trophic
conditions constant over the last 50 yr.
in central Sicily (Italy). All the aquatic environments in the central part of the island are rich in salt,
with conductivity values above 5mS cm−1, and are characterized by high alkalinity values and hard
waters. In addition, due to intensive agriculture, many of these ecosystems have experienced a strong
anthropogenic eutrophication over the last decades. In order to better understand the functioning of
these peculiar environments, the morphology, hydrology, and geochemistry, as well as several selected
physical and biological characteristics of Lake Sfondato, were studied in the years 2003 and 2004. The
results showed that the water body is characterized by meromixis, with permanent water stratification.
This condition reduces the eutrophication processes within the lake, which have kept the trophic
conditions constant over the last 50 yr.
References
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HTML (accessed 27 June 2005).
172–187 (1971).
L. Ogniben. Petrografia della Serie solfifera siciliana e considerazioni geologiche relative. Mem. Descr. Carta
Geol. Ital., 22, 1–275 (1957).
O. Marinelli. Conche lacustri nei gessi in Sicilia. Rivista. Geograf. Ital., 5, 273–285 (1900).
A. De Gregorio. Formazione di un nuovo lago minuscolo a Mimiani (presso Marianopoli). Natural. Sicil., 1,
223–224 (1910).
H. Utermöhl. ZurVervollkommnung der quantitativen Phytoplankton Methodik. Mitt. Int.Ver. Theor. Angewand.
Limnol., 9, 1–38 (1958).
P. Mezzadri. La Serie Gessoso Solfifera della Sicilia Parte IV. Le acque minerali. La serie gessoso solfifera della
Sicilia ed altre memorie geo-minerarie, pp. 492–493, Roberto De Nicola, Rome (1989).
G. Cumin. Il laghetto ‘Lo Sfondato’ nella Sicilia centrale. Boll. Soc. Geogr. Ital., S. VI, 5, 207–211 (1953).
L. Natale (1981). Idrologia Tecnica. Manuale di Ingegneria Civile, Vol. 1, p. 339, Zanichelli, Bologna (1981).
P. Celico. Prospezioni Idrogeologiche, Vol. 2, p. 65, Liguori, Naples (1988).
D.L. Parkhurst. PHREEQC-a computer program for speciation, reaction path, advective transport and inverse
geochemical calculations. USGS Water-Resources Investigations Report, 95, 4227, (1995).
W.M.White. Geochemistry.Available online at http://www.geo.cornell.edu/geology/classes/geo455/Chapters.
HTML (accessed 27 June 2005).
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