Correlation ofBolboforma zonation and nannoplankton stratigraphy in the Neogene of the North Atlantic: DSDP Sites 12–116, 49–408, 81–555 and 94–608

Spiegler, Dorothee; ̈ller, Carla Mu

doi:10.1016/0377-8398(92)90008-8

Cited by 21 publications

(19 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The FO of Neogloboquadrina acostaensis was used by Spiegler and Jansen (1989) to indicate the middle/late Miocene boundary. In a later revision of the biostratigraphy of the Vøring Plateau, Spiegler and Müller (1992) and Müller and Spiegler (1993) equated the middle/late Miocene boundary to the boundary between calcareous nannofossil Zones NN8 and NN9 of Martini (1971) and Zones CN6 and CN7 of Okada and Bukry (1980). It also corresponds to the boundary between the Bolboforma laevis and B. subfragoris Zones (see also Spezzaferri and Spiegler, this volume).…”

Section: Pliocene-pleistocene Transitionmentioning

confidence: 99%

Planktonic foraminifer biostratigraphy and paleoenvironmental implications of Leg 152 sites (East Greenland Margin)

Spezzaferri¹

1998

Proceedings of the Ocean Drilling Program

View full text Add to dashboard Cite

Five sites and eight holes drilled on the East Greenland Margin during Ocean Drilling Program Leg 152 recovered Quaternary to middle Eocene sediments. Planktonic foraminiferal assemblages display generally low diversity; abundance and preservation varies from layer to layer. Several intervals devoid of planktonic foraminifers were identified in middle Miocene through Pliocene, lower upper Oligocene, and Eocene sediments. The more complete sedimentary sequence recovered at Site 918 spans the interval from the Quaternary to the middle Eocene. However, a major hiatus is recorded in the interval that spans the upper Eocene and the lower Oligocene. Two minor hiatuses occur in the lowermost Miocene and probably in the upper part of the middle Miocene, respectively.Paleoclimatic interpretations based on species diversity, changes in assemblages, and comparison with the stable isotope record indicate that several alternating glacial-interglacial episodes occurred during the Pliocene and the Quaternary. These t wo intervals are, however, separated by a warmer episode in the early Pliocene. Cool conditions and glacial episodes also prevailed in the late Miocene, whereas a slight warming probably occurred in the middle Miocene. This period was, however, cooler than the late Oligocene, the early Miocene, and the middle Eocene. These latter intervals were characterized by a warmer climate as indicated by the presence of several warmer water taxa. The first occurrence of Neogloboquadrina pachyderma and the changes in coiling direction of Neogloboquadrina atlantica are also climatically controlled.Comparison with previously drilled sites in the same area indicates that the short early Miocene hiatus and part of the hiatus spanning the late middle Eocene and the early Oligocene identified in Hole 918D may have interregional extensions in the North Atlantic Ocean.

show abstract

Section: Pliocene-pleistocene Transitionmentioning

confidence: 99%

Planktonic foraminifer biostratigraphy and paleoenvironmental implications of Leg 152 sites (East Greenland Margin)

Spezzaferri¹

1998

Proceedings of the Ocean Drilling Program

View full text Add to dashboard Cite

show abstract

“…Its base has been considered latest Middle Miocene (Eidvin et al, 1999) and no older than 12 Ma . In well 24/12-1, recognition of a Bolboforma fragori assemblage at the base of the Utsira Sand (Eidvin et al, unpublished) gives an age of 11.7-10.3 Ma, based on the schemes of Müller and Spiegler (1993) and Spiegler and Müller (1992). Taking the base of the Utsira Sand at 11.7 Ma, and our mudstone drape samples at ca.…”

Section: Discussionmentioning

confidence: 98%

Palynological and foraminiferal biostratigraphy of (Upper Pliocene) Nordland Group mudstones at Sleipner, northern North Sea

Head

Riding

Eidvin³

et al. 2004

Marine and Petroleum Geology

View full text Add to dashboard Cite

“…Because of their small size, simple form, and often highly ornamented shells, bolboformids have commonly been misidentified as simple single-chambered foraminifers. They are important index fossils that supplement calcareous nannofossil and planktonic foraminiferal zonations in mid-to high-latitude regions of Europe, the Atlantic, the southern Indian Ocean, and the southwest Pacific (Spiegler and von Daniels, 1991;Spiegler and Müller, 1992;Crundwell and Nelson, 2007).…”

Section: Bolboformidsmentioning

confidence: 99%

Methods

2011

Proceedings of the IODP

View full text Add to dashboard Cite

Correlation ofBolboforma zonation and nannoplankton stratigraphy in the Neogene of the North Atlantic: DSDP Sites 12–116, 49–408, 81–555 and 94–608

Cited by 21 publications

References 17 publications

Planktonic foraminifer biostratigraphy and paleoenvironmental implications of Leg 152 sites (East Greenland Margin)

Planktonic foraminifer biostratigraphy and paleoenvironmental implications of Leg 152 sites (East Greenland Margin)

Palynological and foraminiferal biostratigraphy of (Upper Pliocene) Nordland Group mudstones at Sleipner, northern North Sea

Methods

Contact Info

Product

Resources

About