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Outputs (73)

Taraxerol abundance as a proxy for in situ Mangrove sediment (2024)
Journal Article
Sefton, J. P., Kemp, A. C., Vane, C. H., Kim, A. W., Bernhardt, C. E., Johnson, J., & Engelhart, S. E. (2024). Taraxerol abundance as a proxy for in situ Mangrove sediment. Organic Geochemistry, 191, Article 104767. https://doi.org/10.1016/j.orggeochem.2024.104767

Mangrove sediments are valuable archives of relative sea-level change if they can be distinguished in the stratigraphic record from other organic-rich depositional environments (e.g., freshwater swamps). Proxies for establishing environment of deposi... Read More about Taraxerol abundance as a proxy for in situ Mangrove sediment.

The characteristics and preservation potential of Hurricane Irma's overwash deposit in southern Florida, USA (2023)
Journal Article
Joyse, K. M., Khan, N. S., Moyer, R. P., Radabaugh, K. R., Hong, I., Chappel, A. R., …Horton, B. P. (2023). The characteristics and preservation potential of Hurricane Irma's overwash deposit in southern Florida, USA. Marine Geology, 461, Article 107077. https://doi.org/10.1016/j.margeo.2023.107077

Overwash deposits from tropical cyclone-induced storm surges are commonly used as modern analogues for paleo-storm studies. However, the evolution of these deposits between their time of deposition and their incorporation into the geologic record is... Read More about The characteristics and preservation potential of Hurricane Irma's overwash deposit in southern Florida, USA.

Salt Marsh Response to Inlet Switch-Induced Increases in Tidal Inundation (2022)
Journal Article
Yellen, B., Woodruff, J., Baranes, H., Engelhart, S., Geyer, R., Randall, N., & Griswold, F. (2023). Salt Marsh Response to Inlet Switch-Induced Increases in Tidal Inundation. Journal of Geophysical Research: Earth Surface, 128(1), https://doi.org/10.1029/2022jf006815

There is widespread concern that rapidly rising sea levels may drown salt marshes by exceeding the rate at which these important ecosystems can build elevation. A significant fraction of marshes reside within backbarrier estuaries, yet little attenti... Read More about Salt Marsh Response to Inlet Switch-Induced Increases in Tidal Inundation.

Implications of anomalous relative sea-level rise for the peopling of Remote Oceania (2022)
Journal Article
Sefton, J., Kemp, A., Engelhart, S., Ellison, J., Karegar, M., Charley, B., & McCoy, M. (2022). Implications of anomalous relative sea-level rise for the peopling of Remote Oceania. Proceedings of the National Academy of Sciences, 119(52), Article e2210863119. https://doi.org/10.1073/pnas.2210863119

Beginning ~3,500 to 3,300 y B.P., humans voyaged into Remote Oceania. Radiocarbon-dated archaeological evidence coupled with cultural, linguistic, and genetic traits indicates two primary migration routes: a Southern Hemisphere and a Northern Hemisph... Read More about Implications of anomalous relative sea-level rise for the peopling of Remote Oceania.

Within-region replication of late Holocene relative sea-level change: an example from southern New England, United States (2022)
Journal Article
Stearns, R., Engelhart, S., Kemp, A., Hill, T., Brain, M., & Corbett, D. (2023). Within-region replication of late Holocene relative sea-level change: an example from southern New England, United States. Quaternary Science Reviews, 300, Article 107868. https://doi.org/10.1016/j.quascirev.2022.107868

Tide-gauge measurements in the western North Atlantic Ocean show coherent, multi-decadal relative sea-level (RSL) trends across multiple spatial scales. Proxy reconstructions developed from salt-marsh sediment can extend this instrumental record. How... Read More about Within-region replication of late Holocene relative sea-level change: an example from southern New England, United States.

Relative sea-level change in South Florida during the past ~5 ka (2022)
Journal Article
Khan, N., Ashe, E., Moyer, R., Kemp, A., Engelhart, S., Brain, M., …Horton, B. (2022). Relative sea-level change in South Florida during the past ~5 ka. Global and Planetary Change, 216, Article 103902. https://doi.org/10.1016/j.gloplacha.2022.103902

A paucity of detailed relative sea-level (RSL) reconstructions from low latitudes hinders efforts to understand the global, regional, and local processes that cause RSL change. We reconstruct RSL change during the past ~5 ka using cores of mangrove p... Read More about Relative sea-level change in South Florida during the past ~5 ka.

Reproducibility and variability of earthquake subsidence estimates from saltmarshes of a Cascadia estuary (2022)
Journal Article
Padgett, J., Engelhart, S., Kelsey, H., Witter, R., & Cahill, N. (2022). Reproducibility and variability of earthquake subsidence estimates from saltmarshes of a Cascadia estuary. Journal of Quaternary Science, 37(7), 1294-1312. https://doi.org/10.1002/jqs.3446

We examine fossil foraminiferal assemblages from 20 sediment cores to assess sudden relative sea-level (RSL) changes across three mud-over-peat contacts at three salt marshes in northern Humboldt Bay, California (~44.8°N, −124.2°W). We use a validate... Read More about Reproducibility and variability of earthquake subsidence estimates from saltmarshes of a Cascadia estuary.

Changing impacts of Alaska-Aleutian subduction zone tsunamis in California under future sea-level rise (2021)
Journal Article
Dura, T., Garner, A., Weiss, R., Kopp, R., Engelhart, S., Witter, R., …Horton, B. (2021). Changing impacts of Alaska-Aleutian subduction zone tsunamis in California under future sea-level rise. Nature Communications, 12, Article 7119. https://doi.org/10.1038/s41467-021-27445-8

The amplification of coastal hazards such as distant-source tsunamis under future relative sea-level rise (RSLR) is poorly constrained. In southern California, the Alaska-Aleutian subduction zone has been identified as an earthquake source region of... Read More about Changing impacts of Alaska-Aleutian subduction zone tsunamis in California under future sea-level rise.

Quaternary Reelfoot fault deformation in the Obion River valley, Tennessee, USA (2021)
Journal Article
Delano, J. E., Briggs, R. W., Jobe, J. T., Gold, R. D., & Engelhart, S. E. (2021). Quaternary Reelfoot fault deformation in the Obion River valley, Tennessee, USA. Tectonics, 40(8), Article e2019TC005990. https://doi.org/10.1029/2019tc005990

Blind reverse faults are challenging to detect, and earthquake records can be elusive because deep fault slip does not break the surface along readily recognized scarps. The blind Reelfoot fault in the New Madrid seismic zone in the central United St... Read More about Quaternary Reelfoot fault deformation in the Obion River valley, Tennessee, USA.