Integrated late Santonian-early Campanian sequence stratigraphy, New Jersey coastal plain; implications to global sea-level studies

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Author(s): Mizintseva, Svetlana F.; Browning, James V.; Miller, Kenneth G.
Author Affiliation(s): Primary:
Rutgers University, Earth and Planetary Sciences, Piscataway, NJ, United States
Volume Title: 2008 AAPG annual convention & exhibition; abstracts volume
Source: Abstracts: Annual Meeting - American Association of Petroleum Geologists, Vol.2008; AAPG 2008 annual convention & exhibition, San Antonio, TX, April 19-23, 2008. Publisher: American Association of Petroleum Geologists and Society for Sedimentary Geology, Tulsa, OK, United States
Note: In English
Summary: Integration of biostratigraphy, benthic foraminiferal biofacies, lithology, and gamma logs from New Jersey coastal plain delineates unconformities, allowing identification of three sequences within the Merchantville Formation (MeI, Me II, Me III). The ages of these sequences have been constrained by calcareous nannoplankton biostratigraphy (Me I: CC16; Me II: CC17-18; Me III: CC18-19) from 78.8 to 85.0 Ma. The ages of Merchantville sequences boundaries are similar to those reported by Haq (1987), Hardenbol (1998), Harris et al. (2006), and Hancock et al. (1993), implicating a global cause for the origin. Close correlation in ages of the Merchantville sequences boundaries and deep-sea benthic foraminiferal δ18O increases from ODP Site 511 (Franklin Plateau) implies that the late Santonian-early Campanian sea-level falls can be attributed to development of ice-sheets. Comparison of our sea-level estimates (based on New Jersey coastal plain paleobathymetry, Kominz et al. [in review]) with modeling data suggest that ice sheets in late Santonian-early Campanian were paced by Milankovitch forcing. The timing of eustatic falls calculated from Milankovitch orbital solutions is similar to the New Jersey margin backstripping record (Kominz et al., in review). Close correlation in ages of the Merchantville sequences boundaries, global sea-level falls, and δ18O increases suggests that the Merchantville sequences on the New Jersey coastal plain are connected to late Santonian-early Campanian global eustatic variations and provides possible evidence for existence of ice sheets in the late Santonian- early Campanian Greenhouse world.
Year of Publication: 2008
Research Program: DSDP Deep Sea Drilling Project
IPOD International Phase of Ocean Drilling
Key Words: 12 Stratigraphy, Historical Geology and Paleoecology; Algae; Atlantic Coastal Plain; Atlantic Ocean; Biofacies; Biostratigraphy; Campanian; Chemostratigraphy; Cretaceous; DSDP Site 511; Deep Sea Drilling Project; Foraminifera; Glaciation; IPOD; Invertebrates; Isotope ratios; Isotopes; Leg 71; Merchantville Formation; Mesozoic; Microfossils; Nannofossils; New Jersey; O-18/O-16; Oxygen; Plantae; Protists; Santonian; Sea-level changes; Sediments; Senonian; Sequence stratigraphy; South Atlantic; Stable isotopes; United States; Upper Cretaceous
Coordinates: S510017 S510017 W0465818 W0465818
Record ID: 2010043310
Copyright Information: GeoRef, Copyright 2018 American Geosciences Institute. Reference includes data supplied by American Association of Petroleum Geologists, Tulsa, OK, United States