Submarine Abrasion and Wave-Cut Platforms

Bradley, William C.

doi:10.1130/0016-7606(1958)69[967:saawp]2.0.co;2

Cited by 77 publications

(31 citation statements)

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“…Where the bench is covered with detritus, the lag can often be found by coring. Although previous studies have placed the mean water level at or well above the base of the bluff (e.g., Johnson 1919; Dietz and Menard 1951;Bradley 1958;Rovey and Borucki 1994), we suggest that the bouldery lag at the bluff base provides the most credible estimation of mean water level (Johnson 1933b;Miller 1939;Zenkovich 1967;Steers 1969). Our observations of modern Great Lakes shorelines also support the use of this position as a surrogate for previous water planes.…”

Section: Water-plane Estimationmentioning

confidence: 94%

Measurement, Correlation, and Mapping of Glacial Lake Algonquin Shorelines in Northern Michigan

Schaetzl

Drzyzga

Weisenborn

et al. 2002

Annals of the Association of American Geographers

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Glacial Lake Algonquin, the most widespread proglacial lake in the Great Lakes basin, attained a high (Main) stage at about 11,000 b.p. , at which time it developed a conspicuous shoreline. Several lower, less obvious Algonquin shorelines also exist. Previous research on this lake has involved three drawbacks: (1) imprecise methods of establishing the location and elevation of shoreline features, (2) misidentification of some offshore coastal landforms as beach ridges, and (3) tenuous and difficult correlation of named shorelines across wide distances. We believe that more than one name is used for some lake phases, making correlation difficult. Our study focused on these problems by surveying and mapping 160 Algonquin wave-cut bluffs throughout northern Michigan. We utilized global positioning system (GPS) technology to precisely record the three-dimensional positions of the bases of these bluffs and statistically fit trend surfaces to these positions. Classification of bluff data indicates that four strong Algonquin shorelines exist in the region, for which we recommend these names: Main, Ardtrea, Wyebridge, and Payette. Weak evidence for a possible fifth, lower shoreline was observed at five locations. Maps of the landscape during each lake phase were created, revealing islands not previously recognized. Rebound curves and maps of the lake during each phase, using the positional data set, indicate that isostatic rebound in the study area appears to be greatest in the northeast sector.

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Section: Water-plane Estimationmentioning

confidence: 94%

Measurement, Correlation, and Mapping of Glacial Lake Algonquin Shorelines in Northern Michigan

Schaetzl

Drzyzga

Weisenborn

et al. 2002

Annals of the Association of American Geographers

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“…The inner edge of the terrace is defined by a shoreline angle at 58 m below present sea level and the outer edge is defined by the shelf break. Although the terrace angle has not been dated, it is inferred from the terrace's configuration that it formed during a slow rise of sea level relative to the rate of sedimentation, perhaps followed by a stillstand near 58 m below present sea level (15). Landward of the shoreline angle, the dip of the Pleistocene/Holocene unconformity increases to as much as 100 and is truncated by a younger erosional surface at 24 m below present sea level.…”

mentioning

confidence: 99%

Riftia pachyptila Jones: Observations on the Vestimentiferan Worm from the Galápagos Rift

Jones

1981

Science

189

137

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“…Erosion and platform cutting are assumed to be achieved solely by wave action on the shoreline, especially in the breaking zone (Bradley, 1958;Dietz, 1963), and we consider initially wave-induced abrasion, or the down wearing of the wave cut platform and not the effect of cliff retreat on profile development and volume of sediment eroded. The principle of uniformitarianism is accepted in the sense that erosion rates are assumed similar through time.…”

Section: Basic Assumptionsmentioning

confidence: 99%

First approximation sea-level dependent mathematical model for volume eroded and submarine profile development in a semienclosed sea: Kiel Bay, Western Baltic

1987

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Given a marine basin of near homogeneous lithology, a known sea level curve, and known submarine abrasion rates, a model is developed to estimate the volume of material eroded by marine action. Assumptions of the model are that erosion is effected solely by submarine abrasion, which is assumed known and uniform through time, and that the volume eroded is small relative to the total volume of the basin. The basis of the model is that the volume eroded V, between time limits t I and t2, is essentially a function of the perimeter length l of the basin, which in turn is

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Submarine Abrasion and Wave-Cut Platforms

Cited by 77 publications

References 0 publications

Measurement, Correlation, and Mapping of Glacial Lake Algonquin Shorelines in Northern Michigan

Measurement, Correlation, and Mapping of Glacial Lake Algonquin Shorelines in Northern Michigan

Riftia pachyptila Jones: Observations on the Vestimentiferan Worm from the Galápagos Rift

First approximation sea-level dependent mathematical model for volume eroded and submarine profile development in a semienclosed sea: Kiel Bay, Western Baltic

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