Surficial geology of the Mount Tom quadrangle, Massachusetts

Larsen, Fredrick D.

doi:10.3133/ofr72219

Cited by 3 publications

(8 citation statements)

References 5 publications

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“…Tom, Mass. (Larsen, 1972), and a minor readvance near Manchester, N.H. (Stone and Koteff, 1979). The Man chester locality shows till overlying sheared and de formed lake-bottom sediments ( fig.…”

Section: Systematic Ice Retreat In New England Localities Of Live-icementioning

confidence: 98%

“…All the well documented in land recessional moraines and readvance localities are interpreted as strictly local features. That is, the distance covered by any single readvance, although not precisely known, is probably not more than a few kilometers (Larsen, 1972;Stone and Koteff, 1979). In a regionally stagnating system, however, a very large area of ice (of regional proportions) would have to be reactivated for each readvance; each readvance would be followed by an interlude of stagnation.…”

Section: Systematic Ice Retreat In New England Localities Of Live-icementioning

confidence: 99%

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Systematic ice retreat in New England

Koteff¹,

Pessl²

1981

Professional Paper

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The mode of ice retreat after the maximum advance of the Wisconsinan glacier that last covered New England has been a subject of controversy for more than 100 years. Two major opposing views dur ing most of this period focused on whether recession was characterized by systematic retreat of active glacier ice or by regional stagnation. Difficulty in correlating with the well-established ice-recessional history in the Middle West hampered the discussion in New England. In the last few decades, detailed mapping on large-scale topographic maps has formed the basis for a third model of deglaciation, the morphosequence concept, which contains parts of both previous views. Careful outlining of the distribution and age relationship of melt-water deposits shows that the ice sheet receded by a process of stagnationzone retreat and that the region was deglaciated systematically. End moraines and readvance localities that demonstrate the presence of live ice during retreat in New England are relatively scarce; however, the distribution of such localities indicates that live ice was only a few kilometers from the margin throughout recession. The position, volumes, and especially the altitudes of melt-water deposits suggest that their source material was debris at or near the ice surface. The debris was carried upward from englacial positions to the ice surface along shear planes that resulted from live ice moving over the obstructing stagnant ice at the glacier margin. Analogous shear planes carrying debris have been found in modern valley glaciers.

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Section: Systematic Ice Retreat In New England Localities Of Live-icementioning

confidence: 98%

Section: Systematic Ice Retreat In New England Localities Of Live-icementioning

confidence: 99%

Systematic ice retreat in New England

Koteff¹,

Pessl²

1981

Professional Paper

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“…Map units were reproduced from Larsen (1972). Glacial stratified deposits include coarse and fine deposits of glacial Lake Westfield in the western part of the quadrangle, glacial Lake Manhan in the northern part, and glacial Lake Hitchcock in the eastern part.…”

Section: Mount Tom Quadranglementioning

confidence: 99%

“…Glacial stratified deposits include coarse and fine deposits of glacial Lake Westfield in the western part of the quadrangle, glacial Lake Manhan in the northern part, and glacial Lake Hitchcock in the eastern part. Thick-till areas were mapped based on topographic analysis and on the position of drumlin axes shown on the map of Larsen (1972). The shallow-bedrock unit is defined as areas of abundant outcrops.…”

Section: Mount Tom Quadranglementioning

confidence: 99%

Surficial materials of Massachusetts—A 1:24,000-scale geologic map database

2018

Scientific Investigations Map

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“…Data from mechanical analyses of upper and lower tills from elsewhere in New England (Crosby, 1891;Goldthwait, 1948;Goldthwait, R. P., 1968;Clebnik, 1973;Larsen. 1972;Moss, 1943; Newton, personal communication; Pessl and Shafer, 1968;Pessl, 1966;Segerstrom, 1955, Campbell, 1975 were plotted on a ternary diagram ( Fig.…”

Section: Comparison With Tills From Other Areas Of New Englandmentioning

confidence: 99%

Surficial and applied surficial geology of the Belchertown Quadrangle, Massachusetts

Caggiano¹

1977

Open-File Report

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Introduction 1 Pre-Pleistocene Geology Precambrian and Paleozoic 3 Triassic 5 Geomorphology 8 Pleistocene Geology Glacial Erosion Glacial Deposits Till Belchertown area Three facies of upper till Laboratory analysis Origin of the till Comparison with till from other areas of New England Hypotheses to account for New England upper and lower till f Age of tills Stratified Drift Charac teris tics Landforms composed of ice contact stratified drift Ice channel fillings Kame terraces Flowtill Deltas Head of outwash Landforms composed of proglacial stratified drift Valley train Glaciolacustrine stratified drift 66

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Surficial geology of the Mount Tom quadrangle, Massachusetts

Cited by 3 publications

References 5 publications

Systematic ice retreat in New England

Systematic ice retreat in New England

Surficial materials of Massachusetts—A 1:24,000-scale geologic map database

Surficial and applied surficial geology of the Belchertown Quadrangle, Massachusetts

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