About This Item
- Full TextFull Text(subscription required)
- Pay-Per-View PurchasePay-Per-View
Purchase Options Explain
Share This Item
The AAPG/Datapages Combined Publications Database
CSPG Bulletin
Abstract
The Identification and Significance of Kaolinite-Rich, Volcanic Ash Horizons (Tonsteins) in the Ardley Coal Zone, Wabamun, Alberta, Canada
ABSTRACT
Clay mineral assemblages present within the coals and coal-bearing strata of the Wabamun area of the central Alberta Plains are a product of the original peat-accumulating and adjacent fluvial depositional environments. In the Highvale area, acidic conditions promoted by the accumulation and humification of thick peats were conducive to the diagenetic mineralization of kaolinite from parent volcanic ash. Detrital minerals are few, and the presence of cristobalite is evidence that dissolution processes were active. Volcanic ash horizons from adjacent environments at Whitewood and Genesee, which were under a greater influence of fluvial activity and fresh water, are composed predominantly of smectite and display a diversity of detrital minerals.
RESUME
Les assemblages de mineraux argileux dans les charbons et dans les couches charbonneuses dans la region de Wabamun des plaines du centre de l'Alberta sont un produit des environnements de depots d'accumulation de la tourbe primaire et des depots fluviaux adjacents. Dans la region de Highvale, des conditions acides favorisees par l'accumulation et l'humidification de tourbes epaisses, ont conduit a la mineralisation diagenetique de kaolinite provenant de cendres volcaniques parents. Les mineraux detritiques sont peu nombreux et la presence de cristobalites est la preuve que les procedes de dissolution sont actifs. Les horizons de cendres volcaniques des environnements adjacents a Whitewood et a Genesee, qui ont ete sous une plus grande influence d'activites fluviatiles et d'eau fraiche, sont composes principalement de smectites et montrent une diversite de mineraux detritiques.
Traduit par Marie Louise Tomas
Pay-Per-View Purchase Options
The article is available through a document delivery service. Explain these Purchase Options.
Watermarked PDF Document: $14 | |
Open PDF Document: $24 |