Magnetic and calcareous-nannofossil stratigraphy of the lower Palaeogene formations of the Hampshire and London basins ( UK).

TY - JOUR

T1 - Magnetic and calcareous-nannofossil stratigraphy of the lower Palaeogene formations of the Hampshire and London basins ( UK).

AU - Aubry, M. P.

AU - Hailwood, E. A.

AU - Townsend, H. A.

PY - 1986

Y1 - 1986

N2 - A magnetostratigraphic study of the lower Palaeogene formations exposed in the Hampshire and London basins, southern UK, has led to the identification of eight stratigraphically distinct normal polarity magnetozones within an otherwise reverse polarity sedimentary sequence which spans the Late Palaeocene to Middle Eocene. A complementary study of the calcareous nannofossil biostratigraphy of these sections, and related sections elsewhere in NW Europe, allows a correlation of this succession of normal polarity magnetozones with the biostratigraphically-calibrated geomagnetic polarity timescale, based on marine magnetic anomalies. Anomalies 22 and 25 appear not to be represented in the UK lower Palaeogene succession because of major unconformities at the Early/Middle Eocene boundary (within the Wittering Division of the Bracklesham Group) and within the Late Palaeocene respectively. The former appears to correlate with a widespread erosional event in the oceans identified from seismic records and interpreted as reflecting a major eustatic sea level fall.-from Authors

AB - A magnetostratigraphic study of the lower Palaeogene formations exposed in the Hampshire and London basins, southern UK, has led to the identification of eight stratigraphically distinct normal polarity magnetozones within an otherwise reverse polarity sedimentary sequence which spans the Late Palaeocene to Middle Eocene. A complementary study of the calcareous nannofossil biostratigraphy of these sections, and related sections elsewhere in NW Europe, allows a correlation of this succession of normal polarity magnetozones with the biostratigraphically-calibrated geomagnetic polarity timescale, based on marine magnetic anomalies. Anomalies 22 and 25 appear not to be represented in the UK lower Palaeogene succession because of major unconformities at the Early/Middle Eocene boundary (within the Wittering Division of the Bracklesham Group) and within the Late Palaeocene respectively. The former appears to correlate with a widespread erosional event in the oceans identified from seismic records and interpreted as reflecting a major eustatic sea level fall.-from Authors

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M3 - Article

VL - 143

SP - 729

EP - 735

JO - Journal - Geological Society (London)

JF - Journal - Geological Society (London)

SN - 0016-7649

IS - 5

ER -