Lithofacies types and vertical profile models; an alternative approach to the description and environmental interpretation of glacial diamict and diamictite sequences

Kemmis, Timothy J.; Hallberg, George R.

doi:10.1111/j.1365-3091.1984.tb00896.x

Cited by 7 publications

(3 citation statements)

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“…It becomes a somewhat subjective choice, and stratigraphers often disagree. Of course, the lacustrine or glacial origin of the Sunnybrook Drift remains a major controversy, as extensively discussed previously (C. H. Karrow 1984aKarrow , 1984bDreimanis 1984aDreimanis , 1984bSharpe 1984;Gravenor 1984;Kemmis and Hallberg 1984). New evidence has been presented on both sides (Westgate et al 1987;N.…”

Section: Sunnybrook Driftmentioning

confidence: 89%

Last interglacial sediments of the Don Valley Brickyard, Toronto, Canada, and their paleoenvironmental significance: Discussion

Karrow¹

1989

Can. J. Earth Sci.

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Section: Sunnybrook Driftmentioning

confidence: 89%

Last interglacial sediments of the Don Valley Brickyard, Toronto, Canada, and their paleoenvironmental significance: Discussion

Karrow¹

1989

Can. J. Earth Sci.

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“…They presented a four-letter lithofacies code and additional symbols for general surveys of field sequences, or drill cores. This lithofacies code became the subject of intense discussion (cf., Dreimanis 1984;Karrow 1984;Kemmis & Hallberg 1984). Dreimanis (1984) stressed that the variability taken by the code is too narrow for recognition of the various possible types of glacial diamicts.…”

mentioning

confidence: 99%

A data chart for field description and genetic interpretation of glacial diamicts and associated sediments…with examples from Greenland, Iceland, and Denmark

Krüger

Kjær

1999

Boreas

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1999 (September): A data chart for field description and genetic interpretation of glacial diamicts and associated sediments -with examples from Greenland, Iceland, and Denmark. Boreas, A data chart is presented for detailed field description of sediment successions containing glacial diamicts and associated sediments. The design is based on field experience from modern glacial environments in Greenland and Iceland and ancient deposits in Denmark. The data chart proposes an integrated scheme that provides a synthesis of existing approaches to sediment description in the field. Three examples of the use of the data chart and logging technique illustrate its wide variability in comparison with the limited sedimentology practised by many scientists working with ancient glacial diamicts. It is concluded that the data chart might be a useful approach for recognition of the various possible types of glacial diamicts, but it does not assume to be a complete approach; it is the object of continuing discussion and can be extended or modified. B o r n Vol. 28, pp. 3 8 0 2 . Oslo. ISSN 0300-9483.The formation and genetic classification of glacial diamicts and associated sediments have been intensively discussed in a series of papers over the past three decades (cf.

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“…Recent analysis has benefited from increased comprehension of the nature of depositional processes and the recognition of a complex range of glacial depositional environments (Eyles el af. 1982;Kemmis & Hallberg 1984). For example till plains or ground moraine are considered to comprise mainly lodgement till (Boulton & Paul 1976;Eyles el al.…”

mentioning

confidence: 99%

The internal structure of glacial landforms: an example from the Halton till plain, Scarborough Bluffs, Ontario

Sharpe

1988

Boreas

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1988 03 01: The internal structure of glacial landforms: an example from the Halton till plain, Scarborough Bluffs, Ontario. Borem, Vol. 17, Oslo. ISSN 0300-9483. Current views on the internal structure of many glacial landforms need further definition. For example, drumlinized Halton till plain near the Scarborough Bluffs, Ontario would traditionally be. viewed as a lodgement till sheet, but it was found to consist of complex sedimentary assemblages including sediment flows, melt-out, deformation and lodgement tills. These facies vary spatially depending on whether deposition occurred beneath grounded ice or within subglacial cavities. Proglacial sediments bury portions of the till plain. Surface Rutings and drumlins clearly indicate the action of subglacial processes on the surface of Halton drift. Sedimentary structures at the contact between stratified sediments and diamictons within the Late Wisconsinan Halton drift are similar to those in older beds exposed at Scarborough Bluffs. The demonstration of the role of grounded ice in Halton drift and the similarity of sedimentary structures to those of the underlying Thorncliffe and Sunnybrook sediments suggests that the action of grounded ice cannot be ruled out in the case of the lower beds, as has been done by Eyles & Eyles (Geology 11,146-152, 1983). Thus, surface Halton drift may be a model for recognition of similar environments of deposition in older beds beneath Halton. This analysis indicates flaws in a recent re-evaluation of Scarborough Bluffs sediment interpreted as solely lacustrine and not directly affected by glaciers.

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Lithofacies types and vertical profile models; an alternative approach to the description and environmental interpretation of glacial diamict and diamictite sequences

Cited by 7 publications

References 0 publications

Last interglacial sediments of the Don Valley Brickyard, Toronto, Canada, and their paleoenvironmental significance: Discussion

Last interglacial sediments of the Don Valley Brickyard, Toronto, Canada, and their paleoenvironmental significance: Discussion

A data chart for field description and genetic interpretation of glacial diamicts and associated sediments…with examples from Greenland, Iceland, and Denmark

The internal structure of glacial landforms: an example from the Halton till plain, Scarborough Bluffs, Ontario

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