Quaternary sea-level history of the United States

Muhs, Daniel R.; Wehmiller, John F.; Simmons, Kathleen R.; York, Linda L.

doi:10.1016/s1571-0866(03)01008-x

Cited by 60 publications

(55 citation statements)

References 188 publications

(335 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This, however, is in conflict with TIMS ages of 532 +130/−70 ka and 529 +47/−35 ka that suggest the age of the Kaena sea-level event is 500-600 ka (Muhs et al, 2004). The estimated MS 11 sea-level proposed in Sussex, England (Bowen, 1999) and cited by Olson and Hearty (2009) was withdrawn when it became clear that the stratigraphical geometry of complex sediments on the coastal plain, which included bivalves and gastropods with amino acid ratios correlated with MIS, 5.5, 7 and 9, did not provide a definitive elevation for the MIS 5.5 sea-level (Bowen, 2003a).…”

Section: High Mis Sea-levels In Bermuda Bahamas Hawaii and Sussex (Uk)mentioning

confidence: 65%

“…lie shelf, beach and lagoonal sediments of the Karmuk Member of the Gubik Formation that is correlated with the Anvillian marine deposits of the Alaskan Coastal Plain (Kaufman, 1992;Kaufman and Brigham-Grette, 1993). They lie below glacial deposits of the Nome River Glaciation which is overlain by basaltic lava with 40 Ar/ 39 Ar age estimates of 470±190 ka (Muhs et al, 2004). The Anvillian marine deposits are dated with AAR age estimates of about 475 ka.…”

Section: The Nome Coastal Plain Alaskamentioning

confidence: 95%

See 1 more Smart Citation

Sea level ~400 000 years ago (MIS 11): analogue for present and future sea-level?

Bowen

2010

Clim. Past

View full text Add to dashboard Cite

Abstract. Comparison of the sea-level today with that of 400 000 years ago (MIS 11), when the Earth's orbital characteristics were similar may provide, under conditions of natural variability, indications of future sea-level during the present interglacial. Then, as now, orbital eccentricity was low and precession dampened. Evidence for MIS 11 sealevel occurs on uplifting coastlines where shorelines with geochronological ages have been preserved. The sea-level term and the uplift term may be separated with an "uplift correction" formula. This discovers the original sea-level at which the now uplifted shoreline was fashioned. Estimates are based on average uplift rates of the "last interglacial" sealevel (MIS 5.5) using a range of estimates for sea-level and age at that time at different locations. These, with varying secular tectonic regimes in different ocean basins, provide a band of estimates for the MIS 11 sea-level. They do not support the hypothesis of an MIS 11 sea-level at ∼20 m, and instead show that it was closer to its present level.

show abstract

Section: High Mis Sea-levels In Bermuda Bahamas Hawaii and Sussex (Uk)mentioning

confidence: 65%

Section: The Nome Coastal Plain Alaskamentioning

confidence: 95%

Sea level ~400 000 years ago (MIS 11): analogue for present and future sea-level?

Bowen

2010

Clim. Past

View full text Add to dashboard Cite

show abstract

“…A sea level elevation of about 5 m a.s.l. during the peak of OISS 5e (132-120 Ka) has been suggested by Chen et al (1991) in the Bahamas and by Muhs et al (2002Muhs et al ( , 2004 in Bermuda Island and Florida. However, two different highstands have been stated by Hearty (2002) in Bermuda: the first one, recorded at about 2.5 m a.s.l., developed between 132 and 125 Ka, and the second one, being registered by a notch and small rubble benches at 6 m a.s.l.…”

Section: Some Palaeoecological Information Deduced From Molluscsmentioning

confidence: 71%

Quaternary marine terraces on Sal Island (Cape Verde archipelago)

Cardeña

Goy

Dabrio

et al. 2007

Quaternary Science Reviews

View full text Add to dashboard Cite

The Quaternary sedimentary record of Sal Island includes marine and related aeolian and alluvial fan deposits. The substratum of the island is volcanic, with ages between 25 and 0.6 Ma. Quaternary marine units generally occur as raised marine terraces forming a broad staircase between elevations of 55-60 m and present sea level. Terraces include a basal conglomerate overlaid by calcarenite; both host corals, algae and molluscs.A chronostratigraphic framework for the Middle Pleistocene to Holocene units has been generated based on a geomorphologic map of the Quaternary landforms and associated deposits and morphosedimentary analysis, with support of laboratory dating: U-series by TIMS in corals, 14 C analyses, palaeomagnetic measurements, and K/Ar ages from other literature. U-series dating of corals from marine terraces provides benchmarks for the Last Interglacial (Oxygen Isotope Substage 5e) and Holocene deposits. The present elevation of the marine terraces and their staircase arrangement suggest a change in vertical movement trend around 330 ka from an uplift to either subsidence or stabilization. r

show abstract

“…500 ka, and could be ca. 250 ka (Muhs et al, 2004b). Thus, we infer that the ~40-m terrace on Santa Barbara Island is at least ca.…”

Section: East Anacapa Islandmentioning

confidence: 83%

Geochemical evidence for airborne dust additions to soils in Channel Islands National Park, California

Muhs

Budahn

Johnson

et al. 2008

Geological Society of America Bulletin

View full text Add to dashboard Cite

There is an increasing awareness that dust plays important roles in climate change, biogeochemical cycles, nutrient supply to ecosystems, and soil formation. In Channel Islands National Park, California, soils are clay-rich Vertisols or Alfi sols and Mollisols with vertic properties. The soils are overlain by silt-rich mantles that contrast sharply with the underlying clay-rich horizons. Silt mantles contain minerals that are rare or absent in the volcanic rocks that dominate these islands. Immobile trace elements (Sc-Th-La and Ta-Nd-Cr) and rare-earth elements show that the basalt and andesite on the islands have a composition intermediate between upper-continental crust and oceanic crust. In contrast, the silt fractions and, to a lesser extent, clay fractions of the silt mantle have compositions closer to average upper-continental crust and very similar to Mojave Desert dust. Island shelves, exposed during the last glacial period, could have provided a source of eolian sediment for the silt mantles, but this is not supported by mineralogical data. We hypothesize that a more likely source for the silt-rich mantles is airborne dust from mainland California and Baja California, either from the Mojave Desert or from the continental shelf during glacial low stands of sea. Although average winds are from the northwest in coastal California, easterly winds occur numerous times of the year when "Santa Ana" conditions prevail, caused by a high-pressure cell centered over the Great Basin. The eolian silt mantles constitute an important medium of plant growth and provide evidence that abundant eolian silt and clay may be delivered to the eastern Pacifi c Ocean from inland desert sources.

show abstract

Quaternary sea-level history of the United States

Cited by 60 publications

References 188 publications

Sea level ~400 000 years ago (MIS 11): analogue for present and future sea-level?

Sea level ~400 000 years ago (MIS 11): analogue for present and future sea-level?

Quaternary marine terraces on Sal Island (Cape Verde archipelago)

Geochemical evidence for airborne dust additions to soils in Channel Islands National Park, California

Contact Info

Product

Resources

About