Holocene foraminifera, climate, and decelerating rise in sea level on the mud patch, southern New England continental shelf
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Abstract
We examined Holocene benthic foraminiferal biofacies, % planktonic foraminifera, and lithofacies changes from New England mud patch cores and present a relative sea-level (RSL) record to evaluate evolution of these rapidly deposited (30–79 cm/kyr) muds. Sandy lower Holocene sections are dominated by Bulimina marginata. The mud patch developed from 11–9 ka as RSL rise slowed from 10 to 7 mm/yr; mud deposition began when the cores (69 to 91 m modern) were inundated below storm wave base. An Elphidium-B. marginata fauna developed at ca. 7–6 ka as RSL rise slowed from approximately 7 to 2 mm/yr. A Globobulimina fauna developed at 3 ka as RSL rise slowed to 1 mm/yr, reflecting lower O2 conditions. Single specimen δ18O analyses of Globobulimina show ∼1‰ variations over the past 3 kyr, reflecting a shelf bottom water seasonal cycle of 4–5°C, and a temperature minimum during the Little Ice Age with warming since.
Suggested Citation
Miller, K.G., Browning, J.V., Keigwin, L., Chaytor, J., Schneider, E., Richtmyer, M., Schmelz, W.J., 2024, Holocene foraminifera, climate, and decelerating rise in sea level on the mud patch, southern New England continental shelf: Journal of Foraminiferal Research, v. 54, no. 2, p. 172-187, https://doi.org/10.61551/gsjfr.54.2.172.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Holocene foraminifera, climate, and decelerating rise in sea level on the mud patch, southern New England continental shelf |
| Series title | Journal of Foraminiferal Research |
| DOI | 10.61551/gsjfr.54.2.172 |
| Volume | 54 |
| Issue | 2 |
| Publication Date | April 15, 2024 |
| Year Published | 2024 |
| Language | English |
| Publisher | Cushman Foundation |
| Contributing office(s) | Woods Hole Coastal and Marine Science Center, Coastal and Marine Hazards and Resources Program |
| Description | 16 p. |
| First page | 172 |
| Last page | 187 |
| Country | United States |