Abstract
This paper reports novel data concerning the volcanic formation of the Piperno, a stone that has been used for a long time in the monumental architecture of Naples and the Campanian region (Southern Italy). A careful field survey of the outcrops or underground sites so far accessible allowed us to draw a lithostratigraphic reconstruction of the formation and enabled the recognition of the three main layers exploited in past centuries and which provided dimension stones for architectural and structural purposes. Petrophysical and mineralogical characterization also enabled us to discriminate the same layers previously identified. Different scoriae/matrix ratio, scoriae dimension and welding degree are the most peculiar features of these horizons. The combination of these three parameters, even though they did not affect the use of Piperno as dimension stone, somehow determined its variable susceptibility to the weathering agents. However, a linear relationship between the exposure time and the decay of the stone itself, at a parity of weathering intensity, was not observed. This assumption was proved by verifying that the specific layers of the volcanic sequence controlled the weathering degree of Piperno from monuments disregarding their age of emplacement.
Similar content being viewed by others
References
Broch E, Franklin JA (1972) The Point-Load Strength Test. Int J Rock Mech Min Sci Geomech Abstr 9:669–697
Calcaterra D, Cappelletti P, de’ Gennaro M, Iovinelli R, Langella A, Morra V (1995) The stone materials of the Ancient Centre of Naples: methodologic criteria for a survey of lithotypes and weathering phenomena. Geologia Applicata e Idrogeologia 30:13–27 (in Italian)
Calcaterra D, Cappelletti P, Langella A, Morra V, de’ Gennaro R, Colella A (2000) The building stones of the ancient centre of Naples (Italy): the Piperno from Phlegrean Fields. Contributions to the knowledge of features of a long-time used stone. J Cultural Heritage 1:415–427
Calcaterra D, Cappelletti P, Colella A, de Gennaro M, de Gennaro R, Langella A (2003) The Stones of the Historical Architecture of Campania Region. ARKOS 2:40–46 (in Italian)
Cardone V, Papa L (1993) The identity of Campi Flegrei. CUEN Napoli, 299 pp (in Italian)
de’ Gennaro M, Calcaterra D, Cappelletti P, Langella A, Morra V (2000) Building stones and related weathering in the architecture of the ancient city centre of Naples. J Cultural Heritage 1:399–414
Deere DU, Miller RP (1966) Engineering classification and index properties for intact rock. Tech Report No AFWL-TR-65–116, Air Force Weapons Lab, Kirtland Air Force Base, New Mexico
Farmer IW (1968) Engineering properties of rocks. E. & F.N. Spon, London, 180 pp
Hawkins AB (1998) Aspects of rock strength. Bull Eng Geol Env 57:17–30
Maggiore L (1934) Information on volcanic materials of Campania used in building construction. Estr Rel Serv Min Statistiche Ind Estr 45(60):57–61 (in Italian)
Normal 1/88 (1988) Weathering of stone materials and conservative treatments. Lexicon. Ed. CNR-ICR, Rome, (in Italian)
Rittmann A (1950) Geological survey of Camaldoli Hill in Campi Flegrei. Boll Soc Geol It 49, Roma, 48 pp (in Italian)
Rosi M, Sbrana A (1987) Phlegrean Fields. Quaderni de “La Ricerca Scientifica”, CNR, Progetto Finalizzato Geodinamica 114(9):176
Acknowledgments
The authors are grateful to L. Melluso and V. Morra (CISAG/Dipartimento Scienze della Terra – Università FEDERICO II) for providing XRF data on the Piperno (G. Ricci – unpublished Ph.D. thesis). Work carried out with the financial support of the CO.FIN. 2003 granted to M. de’Gennaro and within the scientific activities of the Centro di Competenza “INNOVA” – Dimostratore Campi Flegrei.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Calcaterra, D., Langella, A., de Gennaro, R. et al. Piperno from Campi Flegrei: a relevant stone in the historical and monumental heritage of Naples (Italy). Env Geol 47, 341–352 (2005). https://doi.org/10.1007/s00254-004-1156-3
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00254-004-1156-3