Offshore-onshore correlation of upper Pleistocene strata, New Jersey Coastal Plain to continental shelf and slope

被引:23
|
作者
Sheridan, RE [1 ]
Ashley, GM
Miller, KG
Waldner, JS
Hall, DW
Uptegrove, J
机构
[1] Rutgers State Univ, Dept Geol Sci, New Brunswick, NJ 08903 USA
[2] New Jersey Geol Survey, Trenton, NJ 08625 USA
关键词
Pleistocene; NJ continental shelf; seismic stratigraphy;
D O I
10.1016/S0037-0738(00)00020-8
中图分类号
P5 [地质学];
学科分类号
0709 ; 081803 ;
摘要
High-resolution seismic reflection profiles (similar to 1-5 m resolution), including Geopulse(TM), Uniboom(TM), minisparker, small air gun, and water gun sources, are used to trace the delta(18)O Stage 5 portion of the outcropping Cape May Formation across the shelf to the continental slope. The delta(18)O stage 5/6 boundary identified at Ocean Drilling Project (ODP) Site 903 on the continental slope anchors the onshore-offshore seismic correlations. Above the delta(18)O stage 5 sequence, there are distinguishable lowstand systems tracts (LST), transgressive systems tracts (TST) and highstand systems tracts (HST) that correlate with delta(18)O stages 4 through 1. Atlantic Margin Goring Project (AMCOR) holes 6009, 6010, 6011, 6020, and 6021C provide age and paleoenvironmental indicators that agree with these correlations. The sub-arctic paleoenvironmental indicators in sequences of delta(18)O stage 3 agree with the cooler temperatures and lower sea-level highstands of that time. Thicker delta(18)O stage 3 and 4 sequences are preserved in the Paleo-Hudson River incised valley across the shelf. The expanded ice sheets during stage delta(18)O 3 compared to delta(18)O stages 1 and 5 probably increased sediment discharge in the Hudson River drainage system. (C) 2000 Elsevier Science B.V. All rights reserved.
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页码:197 / 207
页数:11
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