Late Cretaceous chronology of large, rapid sea-level changes: Glacioeustasy during the greenhouse world
Geology
By: K.G. Miller, P. J. Sugarman, J.V. Browning, M.A. Kominz, J.C. Hernandez, R.K. Olsson, J.D. Wright, M.D. Feigenson, and W. Van Sickel
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Abstract
We provide a record of global sea-level (eustatic) variations of the Late Cretaceous (99-65 Ma) greenhouse world. Ocean Drilling Program Leg 174AX provided a record of 11-14 Upper Cretaceous sequences in the New Jersey Coastal Plain that were dated by integrating Sr isotopic stratigraphy and biostratigraphy. Backstripping yielded a Late Cretaceous eustatic estimate for these sequences, taking into account sediment loading, compaction, paleowater depth, and basin subsidence. We show that Late Cretaceous sea-level changes were large (>25 m) and rapid (??? m.y.), suggesting a glacioeustatic control. Three large ??18O increases are linked to sequence boundaries (others lack sufficient ??18O data), consistent with a glacioeustatic cause and with the development of small (<106 km3) ephemeral ice sheets in Antarctica. Our sequence boundaries correlate with sea-level falls recorded by Exxon Production Research and sections from northwest Europe and Russia, indicating a global cause, although the Exxon record differs from backstripped estimates in amplitude and shape.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Late Cretaceous chronology of large, rapid sea-level changes: Glacioeustasy during the greenhouse world |
| Series title | Geology |
| DOI | 10.1130/0091-7613(2003)031<0585:LCCOLR>2.0.CO;2 |
| Volume | 31 |
| Issue | 7 |
| Year Published | 2003 |
| Language | English |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Geology |
| First page | 585 |
| Last page | 588 |
| Google Analytic Metrics | Metrics page |