The geologic framework of the Ohio area of Lake Erie

Fuller, Jonathan A.; Circe, R.C.; Oldale, Robert N.

doi:10.3133/ofr95220

Cited by 3 publications

(1 citation statement)

References 5 publications

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“…A wide variety of soils and topographic settings exist across the Lake Erie watershed (Figure 2). Near the lake, bedrock consists of Devonian shale at the southwestern end of the lake, extending slightly to the east (midwestern Ontario in the Thames River watershed), whereas Silurian carbonates are found further to the northeast (i.e., Grand River watershed in Ontario) and west of the Sandusky River in Ohio (Fuller et al., 1995; Ministry of Energy, Northern Development & Mines, 1991). Bedrock geology has very little impact across most of the watershed, however, because of the deep overburden.…”

Section: Geographical Factors Influencing Vulnerability To P Loss: Regional Differences In Climate Geomorphology Farming Systems and Artimentioning

confidence: 99%

One size does not fit all: Toward regional conservation practice guidance to reduce phosphorus loss risk in the Lake Erie watershed

et al. 2021

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Agricultural phosphorus (P) losses to surface water bodies remain a global eutrophication concern, despite the application of conservation practices on farm fields.Although it is generally agreed upon that the use of multiple conservation practices ("stacking") will lead to greater improvements to water quality, this may not be cost effective to farmers, reducing the likelihood of adoption. At present, wholesale recommendations of conservation practices are given; however, the application of specific conservation practices in certain environments (e.g., no-till with surface application, cover crops) may not be effective and can even lead to unintended consequences. In this paper, we present the Lake Erie watershed as a case study. The Lake Erie watershed contains regions with unique physical geographies that include differences in climate, soil, topography, and land use, which have implications for both P transport from agricultural fields and the efficacy of conservation practices in mitigating P losses. We define major regions within the Lake Erie watershed where common strategies for conservation practice implementation are appropriate, and we propose a five-step plan for bringing regionally tailored, adaptive, and cost-conscious conservation practice into watershed planning. Although this paper is specific to the Lake Erie watershed, our framework can be transferred across broader geographic regions to provide guidance for watershed planning.

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Section: Geographical Factors Influencing Vulnerability To P Loss: Regional Differences In Climate Geomorphology Farming Systems and Artimentioning

confidence: 99%

One size does not fit all: Toward regional conservation practice guidance to reduce phosphorus loss risk in the Lake Erie watershed

et al. 2021

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Tevesz

Spongberg

Fuller

1998

Journal of Paleolimnology

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Distribution of surficial sediments in Ohio's nearshore (Lake Erie) as interpreted from sidescan sonar and 3.5 kHz subbottom data

Fuller¹

1996

Open-File Report

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Side scan sonar and 3.5 kHz subbottom data were collected along 1,570 km of tracklines from 1993 to 1995. Interpretations of the data were used to map the distribution of nearshore surficial sediments between 500 meters and 3.5 kilometers from shore. Sediment distribution mapping was extended to shore using interpretations of surficial sediments from bathymetric profiles that were run in the 1970's from the shore out to 600 m. Interpretation of the side scan sonar and 3.5 kHz subbottom records delineated five acoustic backscatter classes that generally correlate with five different sediment types. From the Ohio-Pennsylvania state line to Fairport Harbor and from the west side of the Cleveland harbor complex to Ceylon, rock dominates the lake bed of the inner half of the mapped area and mud or sandy mud dominates the outer half of the mapped area. The inner half of the mapped area from Fairport Harbor to Euclid is dominated by till and lake clays and the offshore half is dominated by sand. Because of the nature of side scan sonar to "see" only the surface, some of the sand and sandy mud areas may be thin veneers over till and lake clays deposits. Data interpretations of the 3.5 kHz reflection record re-enforce the veneer interpretation. From Euclid to the west side of the Cleveland harbor complex, the bottom is mostly sand and sandy mud exposed in about equal distribution. The inner quarter of the mapped area from Ceylon to Marblehead is dominated by mud, sandy mud, and sand; there are only small outcrops of till and lake clays or rock. Mud predominates in the outer three quarters of the mapped area. The short section of coast from Marblehead to the west side of Catawba Island is a complex of all bottom types with none dominant. The reach from the west side of Catawba Island to Little Cedar Point (near Toledo) is dominated by sandy mud and mud in the outer three quarters of the mapped area and till and lake clays along the inner quarter. Here again, the sediment cover over the till and lake clays is probably a thin lag deposit as suggested by interpretation of the 3.5 kHz data. The nearshore profiles show that narrow deposits of sand exist along most of the shore edge of the mapped area and in some areas, are exposed as beaches. Some general correlations seem to exist between the nearshore sediment distribution and the bluff recession. Where the bluff is rock recession rates are low and there was little correlation with the nearshore sediments. Where the bluff is till or till related deposits that are erodible, the recession rates seem to be lower where rock dominates the inner half of the mapped area.

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The geologic framework of the Ohio area of Lake Erie

Cited by 3 publications

References 5 publications

One size does not fit all: Toward regional conservation practice guidance to reduce phosphorus loss risk in the Lake Erie watershed

One size does not fit all: Toward regional conservation practice guidance to reduce phosphorus loss risk in the Lake Erie watershed

Untitled

Distribution of surficial sediments in Ohio's nearshore (Lake Erie) as interpreted from sidescan sonar and 3.5 kHz subbottom data

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