Pleistocene glacial and interglacial stratigraphy of New England, Long Island, and adjacent Georges Bank and Gulf of Maine

Stone, Byron D.; Borns, Harold W.

doi:10.1016/0277-3791(86)90172-1

Cited by 91 publications

(124 citation statements)

References 41 publications

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“…However, the new chronology is not consistent with existing chronologies for western New England (Davis and Jacobson, 1985;Hughes et al, 1985;Stone and Borns, 1986;Dyke and Prest, 1987) based on bulk sediment 14 C ages from cores of small lakes (Table II). Our atmospheric 14 C chronology indicates that deglaciation of New Hampshire and Vermont began at 12.6 ka in southern Vermont and ended with ice receding into Québec at about 11.5 ka (Fig.…”

Section: Evaluation: Calibrated Varve and Paleomagnetic Chronologycontrasting

confidence: 86%

Varve, paleomagnetic, and 14 C Chronologies for late Pleistocene events in New Hampshire and Vermont (U.S.A.)

Ridge¹,

Bensonen²,

Brochu³

et al. 2002

gpq

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A deglacial chronology for northern New England has been formulated using an atmospheric 14 C calibration of the New England Varve Chronology and paleomagnetic records. This 14 C chronology is based on 14 C ages from macrofossils of non-aquatic plants and is about 1 500 yr younger than existing chronologies that are based primarily on 14 C ages of bulk organic samples. The lower and upper Connecticut Valley varve sequences of Ernst Antevs (NE varves 2 701-6 352 and 6 601-8 500) overlap (lower 6 012 = upper 6 601) based on their crudely matching varve records and their similar paleomagnetic records. Three 14 C ages at Canoe Brook, Vermont (NE varve 6 150 = 12.3 14C ka) calibrate the lower Con necticut Valley sequence. New AMS and con ventional 14 C ages on woody twigs from Newbury, Vermont calibrate the upper se quence from 11.6-10.4 14 C ka (NE varves 7 440-8 660) and are consistent with the over lapping varve and paleomagnetic records, and the Canoe Brook 14 C ages. Deglaciation of the Connecticut Valley in southern Vermont began at 12.6 14 C ka (15.2 cal ka) and the Littleton-Bethlehem Readvance in northern New Hampshire and Vermont reached its maximum at11.9-11.8 14 C ka (14.0-13.9 cal ka) followed by recession of ice into Québec at about 11.5 14 C ka (13.4 cal ka). A lake persisted in the upper Connecticut Valley until at least 10.4 14 C ka (12.3 cal ka) and may have been seen by the first humans in the area.

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Section: Evaluation: Calibrated Varve and Paleomagnetic Chronologycontrasting

confidence: 86%

Varve, paleomagnetic, and 14 C Chronologies for late Pleistocene events in New Hampshire and Vermont (U.S.A.)

Ridge¹,

Bensonen²,

Brochu³

et al. 2002

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“…Long Island, New York marks the southern terminus of the Wisconsinan Laurentide glacial advance in the eastern part of North America (Stone and Borns, 1986). The coast from Southampton to Montauk Point is a headland region where the Ronkonkoma moraine (Fig.…”

Section: Regional Geologic Settingmentioning

confidence: 99%

Modification of the Quaternary stratigraphic framework of the inner-continental shelf by Holocene marine transgression: An example offshore of Fire Island, New York

et al. 2014

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“…The older of these sheets is commonly attributed to pre-to late Wisconsinan events, whereas the younger sheet is a product of the late Wisconsinan ice advance (Sirkin 1982). Two late Wisconsinan end-moraine lines cross Long Island (Schafer and Harshorn 1965;Sirkin 1982;Stone and Borns 1986). The Ronkonkoma moraine, which marks the maximum extent of the late Wisconsinan glaciation, lies across central and southeastern Long Island, and extends eastward across the shelf in the direction of Block Island.…”

Section: Coastal-plain Sediments Ofmentioning

confidence: 99%

Seafloor character and sedimentary processes in eastern Long Island Sound and western Block Island Sound

Poppe

DiGiacomo-Cohen

Smith³

et al. 2006

Geo-Mar Lett

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Multibeam bathymetric data and seismic-reflection profiles collected in eastern Long Island and western Block Island Sounds reveal previously unrecognzed glacial features and modern bedforms. Glacial features include an ice-sculptured bedrock surface, a newly identified recessional moraine, exposed glaciolacustrine sediments, and remnants of stagnant-ice-contact deposits. Modern bedforms include fields of transverse sand waves, barchanoid waves, giant scour depressions, and pockmarks. Bedform asymmetry and scour around obstructions indicate that net sediment transport is westward across the northern par of the study area near Fishers Island and eastward across the southern par near Great Gull Island.

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Pleistocene glacial and interglacial stratigraphy of New England, Long Island, and adjacent Georges Bank and Gulf of Maine

Cited by 91 publications

References 41 publications

Varve, paleomagnetic, and 14 C Chronologies for late Pleistocene events in New Hampshire and Vermont (U.S.A.)

Varve, paleomagnetic, and 14 C Chronologies for late Pleistocene events in New Hampshire and Vermont (U.S.A.)

Modification of the Quaternary stratigraphic framework of the inner-continental shelf by Holocene marine transgression: An example offshore of Fire Island, New York

Seafloor character and sedimentary processes in eastern Long Island Sound and western Block Island Sound

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