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Modelling pedogenization of zeolitized tuff; effects of water and phenolic substances on weathering rates of the Campanian ignimbrite (yellow facies)

Eleonora Grilli, A. Colella, E. Coppola, A. Langella and A. Buondonno
Modelling pedogenization of zeolitized tuff; effects of water and phenolic substances on weathering rates of the Campanian ignimbrite (yellow facies) (in Zeolite 2010, Ognyan E. Petrov (prefacer) and David L. Bish (prefacer))
Clay Minerals (June 2011) 46 (2): 311-327

Abstract

An experimental pedology research project, based on a "process-system" pedogenetic model, was initiated to investigate the weathering of Phlegraean Yellow Tuff (PYT)--the yellow facies of the Campanian Ignimbrite with phillipsite>chabazite--as representative of the parent rock material as the soil-forming factor. PYT was weathered by water (W) and tannic acid solutions (TA) at concentrations ranging from 3X10 (super 1) to 3X10 (super 4) mu mol l (super -1) . The most concentrated TA solution (3X10 (super 4) mu mol l (super -1) ) showed the greatest extracting efficiency. Na and K were continually solubilized by W; Al, Ca and Mg contributed to the ionic composition of all the TA supernatants. A significant dissolution of the amorphous component and an associated decrease of the zeolite content, especially phillipsite, were noted. The features of PYT weathered outcomes fitted the "process-system" model very well. PYT showed a pedogenic potential, in being prone to weathering, as well as in releasing elements of importance for plant settlement and development, such as K, Ca, Mg and Fe.


ISSN: 0009-8558
EISSN: 1471-8030
Coden: CLMIAF
Serial Title: Clay Minerals
Serial Volume: 46
Serial Issue: 2
Title: Modelling pedogenization of zeolitized tuff; effects of water and phenolic substances on weathering rates of the Campanian ignimbrite (yellow facies)
Title: Zeolite 2010
Author(s): Grilli, EleonoraColella, A.Coppola, E.Langella, A.Buondonno, A.
Author(s): Petrov, Ognyan E.prefacer
Author(s): Bish, David L.prefacer
Affiliation: Seconda Universita di Napoli, Napoli, Italy
Affiliation: Bulgarian Academy of Sciences, Institute of Mineralogy and Crystallography, Sofia, Belgium
Pages: 311-327
Published: 201106
Text Language: English
Publisher: Mineralogical Society, London, United Kingdom
Meeting name: 8th international conference on the Occurrence, properties and utilization of natural zeolites (Zeolite 2010)
Meeting location: Sofia, BEL, Belgium
Meeting date: 20100710July 10-18, 2010
References: 76
Accession Number: 2011-073193
Categories: Geochemistry of rocks, soils, and sedimentsSoilsSedimentary petrology
Document Type: Serial Conference document
Bibliographic Level: Analytic
Illustration Description: illus. incl. 3 tables, 2 plates
Secondary Affiliation: Indiana University, USA, United StatesUniversita di Napoli Federico II, ITA, ItalyUniversita del Sannio, ITA, Italy
Country of Publication: United Kingdom
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland. Reference includes data from GeoScienceWorld, Alexandria, VA, United States
Update Code: 201140
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