Submerged and eroded drumlins off northeastern Massachusetts
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Abstract
Streamlined, oval-shaped, oriented topographic highs in Massachusetts Bay are identified as the erosional remnants of drumlins. The topographic highs correlate with outlines of lag gravel deposits on the sea floor and both the highs and lag gravel seafloor footprint have a distinct east-southeast long axis trend. This trend is similar to the preferred orientation of the long axes of drumlins in the Boston Basin and indicates the flow direction of the late Wisconsinan Laurentide Ice Sheet. Modification of the drumlins occurred during two passages of the shoreline, the first during the late Wisconsinan regression when the drumlins were only slightly eroded. The second passage of the shoreline occurred during the marine transgression, when erosion, in the form of cliff-face retreat, removed the upper part of the drumlins.
Study Area
Publication type | Article |
---|---|
Publication Subtype | Journal Article |
Title | Submerged and eroded drumlins off northeastern Massachusetts |
Series title | Geomorphology |
DOI | 10.1016/0169-555X(94)90051-5 |
Volume | 9 |
Issue | 4 |
Year Published | 1994 |
Language | English |
Publisher | Elsevier |
Contributing office(s) | Woods Hole Coastal and Marine Science Center |
Description | 9 p. |
First page | 301 |
Last page | 309 |
Country | United States |
State | Massachusetts |
Other Geospatial | Massachusetts Bay |
Google Analytic Metrics | Metrics page |