Magnetostratigraphy of Oligocene to Pleistocene sediments, Sites 558 and 563.

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Integrated magnetostratigraphic and biostratigraphic studies of DSDP Sites 563 and 558 (western North Atlantic) show that, except for a short (approx 2 Ma) early Miocene hiatus, deposition was continuous from time of seafloor formation (Site 563, between Anomalies 12 and 13; Site 558, between Anomalies 13 and 15) through the Miocene at both sites. Several biostratigraphic datum levels, which have been correlated firmly with magnetic polarity chrons elsewhere, allow correlation of the magnetostratigraphy with the geomagnetic polarity time scale. Based upon that calibration, sediment accumulation rates were low to moderate (<10 m/Ma) in the Oligocene-early Miocene and higher (>10 m/Ma) in the middle-late Miocene after a short hiatus (Chron C5E is missing at both sites).-from Authors

Original languageEnglish (US)
Pages (from-to)385-392
Number of pages8
JournalUnknown Journal
StatePublished - 1985
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Environmental Science(all)
  • Earth and Planetary Sciences(all)

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