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Titolo:
Hydrotalcite and an amorphous clay mineral in high-magnesium mudstones from the Kozani Basin, Greece
Autore:
Hall, A; Stamatakis, MG;
Indirizzi:
Univ London Royal Holloway & Bedford New Coll, Dept Geol, Egham TW20 0EX, Surrey, England Univ London Royal Holloway & Bedford New Coll Egham SurreyEngland TW20 0EX Natl Tech Univ Athens, Dept Geol, Athens 15784, Greece Natl Tech Univ Athens Athens Greece 15784 ept Geol, Athens 15784, Greece
Titolo Testata:
JOURNAL OF SEDIMENTARY RESEARCH
fascicolo: 3, volume: 70, anno: 2000,
parte:, A
pagine: 549 - 558
SICI:
1527-1404(200005)70:3<549:HAAACM>2.0.ZU;2-#
Fonte:
ISI
Lingua:
ENG
Soggetto:
SYNTHETIC HYDROTALCITES; GLASSES;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
35
Recensione:
Indirizzi per estratti:
Indirizzo: Hall, A Univ London Royal Holloway & Bedford New Coll, Dept Geol, Egham TW20 0EX, Surrey, England Univ London Royal Holloway & Bedford New Coll Egham Surrey England TW20 0EX
Citazione:
A. Hall e M.G. Stamatakis, "Hydrotalcite and an amorphous clay mineral in high-magnesium mudstones from the Kozani Basin, Greece", J SED RES, 70(3), 2000, pp. 549-558

Abstract

The paper describes two unusual lithologies that occur in a sequence of Mg-rich lacustrine sediments in northern Greece. The first is a laminated mudstone in which layers composed of magnesian smectite alternate with layers composed of an amorphous clay of similar chemical composition. The second lithology is a thin bed of mudstone in which the only crystalline constituent is hydrotalcite (a magnesium aluminum hydroxide), accompanied by amorphous high-magnesium clay. Hydrotalcite has not previously been recorded from sedimentary rocks except as a product of industrial pollution. The high-magnesium clay is considered to have formed by precipitation from Mg rich lake water onto volcanic ash particles, whilst the hydrotalcite has filled the molds left by dissolution of volcanic glass within the clay-coated particles.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 20/09/20 alle ore 04:32:25