Biostratigraphic subdivision and correlation of upper Maastrichtian sediments from the Atlantic Coastal Plain and Blake Nose, western Atlantic

Self‐Trail, Jean M.

doi:10.1144/gsl.sp.2001.183.01.05

Cited by 10 publications

(7 citation statements)

References 27 publications

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“…3). A similar, but more rapid, pattern of gradual replacement of Cretaceous by Danian taxa at this site has been observed for calcareous nannofossils (Norris et al, 1999;Self-Trail, 2001).…”

Section: Relative Abundance Changessupporting

confidence: 77%

“…Analysis of Maastrichtian sediment cores and seismic reflection data along the Leg 171B depth transect led Klaus et al (2000) as well as Norris and Firth (this volume) to conclude that mass wasting occurred across Blake Nose as a result of the Chicxulub impact event. Despite this evidence for sediment deformation, the middle through upper Maastrichtian sequence at Site 1049 is biostratigraphically complete and there is no evidence for stratigraphic repetition (Norris et al, 1999;Self-Trail, 2001).…”

Section: Geologic Settingmentioning

confidence: 94%

“…However, the presence of Mg spinels and an Ir anomaly in basal Paleocene sediments suggest that the boundary section is complete. A burrowed contact marks the base of an overlying 5-15cm-thick, white foraminiferal-nannofossil ooze that also contains a Pa Zone foraminiferal assemblage and fossils typical of calcareous nannofossil biozone NPl (Norris et al, 1999;Self-Trail, 2001). In sharp contact with the top of the white interval is greenish-gray nannofossil foraminiferal ooze, which is the final bed of the studied sequence.…”

Section: Petrologymentioning

confidence: 99%

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Abrupt extinction and subsequent reworking of Cretaceous planktonic Foraminifera across the Cretaceous-Tertiary boundary: Evidence from the subtropical North Atlantic

Huber¹,

MacLeod²,

Norris³

2002

Catastrophic Events and Mass Extinctions: Impacts and Beyond

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An impact ejecta bed containing shoclied quartz and diagenetically altered telitite spherules coincides exactly with biostratigraphic placement of the Cretaceous-Tertiary (K-T) boundary in three drill cores recovered from Ocean Drilling Program Site 1049 (located in the subtropical North Atlantic Ocean). Both the bracketing pelagic ooze and the ejecta bed are undisturbed at Site 1049, allowing detailed examination of the expression of the boundary event in an open ocean setting. The youngest Cretaceous sediments contain a diverse assemblage of well-preserved upper Maastrichtian Tethyan microfossils. The overlying ejecta bed varies laterally in thickness, has sharp lower and upper contacts, and contains features (e.g., presence of a foraminiferal grainstone layer at its base and large chalk clasts in its middle, and dominance of poorly sorted coarse grains throughout) that suggest it was deposited by one or several mass-flow events. The oldest Danian ooze contains abundant, tiny planktonic foraminifera characteristic of the early Danian Pa Zone as well as common, large Cretaceous individuals. The lowermost Danian PO Zone (assemblage dominated by Guembelitria cretacea) is apparently absent. This absence could reflect restriction of the PO assemblage to shallower settings, slow sedimentation rates coupled with bioturbation mixing Tertiary forms into (and thus obscuring) the PO Zone, or an interval of erosion or nondeposition. Cretaceous species decline and last occur in the first several meters of section above the ejecta bed. This pattern could be interpreted as evidence for gradual extinction above the impact bed, but thin-section observations, relative abundance counts, size-distribution analyses, and comparison with species extinctions at other K-T sections demonstrate sudden extinction, nearly all post-K-T occurrences of Cretaceous planktonic foraminiferal species being explained as the result of sediment reworking.

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Section: Relative Abundance Changessupporting

confidence: 77%

Section: Geologic Settingmentioning

confidence: 94%

Section: Petrologymentioning

confidence: 99%

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Abrupt extinction and subsequent reworking of Cretaceous planktonic Foraminifera across the Cretaceous-Tertiary boundary: Evidence from the subtropical North Atlantic

Huber¹,

MacLeod²,

Norris³

2002

Catastrophic Events and Mass Extinctions: Impacts and Beyond

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“…However, they also occurred, albeit only rarely to frequently, down to the Tropical PBZ (Lees, 2002), so their absence from Shatsky Rise is enigmatic. Nephrolithus, which is a renowned high-latitude (subantarctic-austral/boreal) genus, is absent at Shatsky Rise, although it did reach down to the Tropical PBZ in the late Maastrichtian of the Atlantic (Self-Trail, 2001) and Indian Oceans (Lees, 2002). This may be further evidence that there was no high-latitude influence over Shatsky Rise in the Maastrichtian.…”

Section: Biogeographymentioning

confidence: 99%

Upper Cretaceous Calcareous Nannofossil Biostratigraphy, ODP Leg 198 (Shatsky Rise, Northwest Pacific Ocean)

Lees¹,

Bown²

2005

Proceedings of the Ocean Drilling Program, 198 Scientific Results

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Eight sites were drilled on Shatsky Rise during Ocean Drilling Program Leg 198. All sites (1207-1214) recovered Cretaceous sediments ranging in age from Maastrichtian to Berriasian. In the Upper Cretaceous, Maastrichtian-Campanian nannofossil oozes were recovered at Sites 1207-1212. At Sites 1207 and 1212 Santonian-Cenomanian oozes were also recovered from chert-dominated sequences, but this interval contains multiple hiatuses. Sites 1209-1211 terminated in chert. Calcareous nannofossil assemblages are abundant, diverse, and relatively well preserved throughout, but biostratigraphy is problematic in places due to missing or rare and sporadically distributed marker species. In the upper Maastrichtian, the first occurrences (FOs) of Micula murus and Lithraphidites quadratus appear to be reversed in most sections, and in the Campanian, Reinhardtites levis, Misceomarginatus pleniporus, and Eiffellithus parallelus are absent or virtually absent, probably due to biogeographic limitations. However, a number of previously unused bioevents were recognized that may prove to be useful Pacific-wide, including the FO of Ceratolithoides ultimus (in Subzone UC20d TP) and the last occurrence (LO) of Tegumentum stradneri (in Subzone UC20b TP) in the upper Maastrichtian; the FOs of Micula praemurus and consistent Cribrocorona gallica, the LOs of Zeugrhabdotus bicrescenticus and Cribrocorona echinus, and the FO of C. echinus lower in the Maastrichtian; and the LO of Rucinolithus? magnus (in Zone UC16), FO of R.? magnus (in Subzone UC15b TP), FO of Perchnielsenella stradneri (in Subzone UC15a/b TP), and

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“…(2) A marked diachronism of the FO of M. murus was noticed by Self-Trail (2001) between deepsea Site 1052E (FO within chron C31n) and the shallow-water borehole CHN-803, Atlantic coastal plain (FO within chron C30n). This result was interpreted as environmentally controlled, due to the different settings of the sites.…”

Section: Result: Diachronism Of the Fo Of M Murusmentioning

confidence: 99%

Latitudinal migration of calcareous nannofossil Micula murus in the Maastrichtian: Implications for global climate change

Thibault¹,

Gardin²,

Galbrun³

2010

Geology

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Micula murus is one of the main calcareous nannofossil biostratigrapic markers of Tethyan and Intermediate provinces in the upper Maastrichtian (uppermost Cretaceous). A review of its fi rst occurrence at 14 deep-sea sites and sections shows that it is time transgressive from the Tropical Realm of the Atlantic and Pacifi c Oceans to the intermediate latitudes of the North Atlantic, South Atlantic, Indian Ocean, and the northern Tethys. M. murus remained confi ned to the Tropical Realm for ~1.2 m.y. in the early-late Maastrichtian, thus supporting high-latitudinal thermal gradients. It subsequently spread out in the late Maastrichtian to temperate latitudes and to the Tethys in coincidence with the onset of a thermohaline circulation change ca. 67.5 Ma, suggesting a major change in surface-water circulation and interocean communications.

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Biostratigraphic subdivision and correlation of upper Maastrichtian sediments from the Atlantic Coastal Plain and Blake Nose, western Atlantic

Cited by 10 publications

References 27 publications

Abrupt extinction and subsequent reworking of Cretaceous planktonic Foraminifera across the Cretaceous-Tertiary boundary: Evidence from the subtropical North Atlantic

Abrupt extinction and subsequent reworking of Cretaceous planktonic Foraminifera across the Cretaceous-Tertiary boundary: Evidence from the subtropical North Atlantic

Upper Cretaceous Calcareous Nannofossil Biostratigraphy, ODP Leg 198 (Shatsky Rise, Northwest Pacific Ocean)

Latitudinal migration of calcareous nannofossil Micula murus in the Maastrichtian: Implications for global climate change

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