metabentonite

metabentonite

[¦med·ə′bent·ən‚īt]
(geology)
Altered bentonite, formed by compaction or metamorphism; it swells very little and lacks the usual high colloidal properties of bentonite.
References in periodicals archive ?
On the distribution of the main metabentonite stratum (d, XXII) in the Middle Ordovician of Baltoscandia.
New correlations of Telychian (Silurian) bentonites in Estonia/Telychi (Silur) bentoniitide uued korrelatsioonid Eestis
Occurrence: In a metabentonite within a sequence of dark gray mudstones.
Abstracts of new mineral descriptions
However, C rugata occurs in certain intervals of the Halliku Formation both below and above the metabentonite bII (Figs.
The Pirgu regional stage (Upper Ordovician) in the East Baltic: lithostratigraphy, biozonation, and correlation/Pirgu regionaalne lade (Ulem-Ordoviitsium) Baltikumis: litostratigraafia, biotsonaalsus ja korrelatsioon
Metabentonite geochemistry: magmatic cycles and graptolite extinctions at Dob's Linn, southern Scotland.
Traces of explosive volcanic eruptions in the Upper Ordovician of the Siberian Platform
In the Ohesaare drill core a metabentonite layer at a depth of 345.
Chitinozoans of the Margachitina margaritana Biozone and the Llandovery-Wenlock boundary in West Estonian drill cores/Margachitina margaritana biotsooni kitiinikud ja Llandovery-Wenlocki piir Laane-Eesti labiloigetes
Metabentonite layers in the Estonian geological sections of Pirgu age refer to volcanism and tectonic activity in the west (Kiipli et al.
Mean grain size fluctuations of the siliciclastic component in the Aizpute-41 core: implication for end-Ordovician glaciation
On the distribution of the main metabentonite stratum (d; XXII) in the Middle Ordovician of Baltoscandia.
Geochemical discrimination of the Upper Ordovician Kinnekulle Bentonite in the Billegrav-2 drill core section, Bornholm, Denmark
Metabentonite composition related to sedimentary facies in the Lower Silurian of Estonia.
Correlation of Telychian sections from shallow to deep sea facies in Estonia and Latvia based on the sanidine composition of bentonites/Eesti ja Lati madal- ja suvamere faatsieste Telychi labiloigete korrelatsioon bentoniitide sanidiini koostise alusel
The last paper noted also all known metabentonite beds (in the Isakivtsy--3, Prygorodok--6, Varnytsya--2, Trubchyn--2, Dzvenygorod--1).
Pridoli carbon isotope trend and upper Silurian to lowermost Devonian chemostratigraphy based on sections in Podolia (Ukraine) and the East Baltic area/Susinikisotoopide suhte arengutrend Pridolis ja Ulem-Siluri ning Devoni alguse kemostratigraafia Podoolia (Ukraina) ja Baltikumi andmetel
Tsegelnyuk initiated a multidisciplinary revision of the sequence, including stratigraphy (especially lithostratigraphy), different groups of fossils, metabentonite beds for correlation purposes, etc.
Three global carbon isotope shifts in the Silurian of Podolia (Ukraine): stratigraphical implications/ Kolm globaalset susinikisotoopide suhte anomaaliat Podoolia (Ukraina) Siluris: stratigraafilised jareldused
Geochemical "Golden Spike" for Lower Palaeozoic metabentonites.
Internal stratification of two thick ordovician bentonites of estonia: deciphering primary magmatic, sedimentary, environmental and diagenetic signatures/Kahe paksu Ordoviitsiumi bentoniidi sisemine stratifikatsioon: magmaliste, setteliste, keskkonna ja diageneetiliste tunnuste desifreerimine
6% (as hematite) in thin violet layers of altered volcanic ash, metabentonites (Kiipli et al.
Redox changes in the deep shelf of the East Baltic Basin in the Aeronian and early Telychian (early Silurian)/Redokstingimuste muutused Ida-Balti basseini sugaval selfil Aeronis ja Telychis (Vara-Siluris)
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