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MAGNETOSTRATIGRAPHY OF THE EARLY PALEOGENE IN THE ERLIAN BASIN

Bo Sun

Open publisher page 15 citations

Abstract

The results of paleomagnetism experiments indicate that the composite Paleogene section from the Nuhetingboerhe-Huheboerhe area,Erlian Basin,records 5 normal polarity zones and 6 reversed polarity zones.These polarities can well be correlated to the chron C21r-C26r of GPTS 2004(Lourens et al.,2004),though some zones are not intact.The Nomogen Formation mainly consists of late Paleocene deposits,with some earliest Eocene and middle Paleocene strata.The Arshanto Formation represents a longer time,spanning from the early Eocene to the middle Eocene.The Irdin Manha Formation is entirely constrained within the middle Eocene.The age of the fossiliferous bed(with the fossils Lambdopsalis,Prionessus and Palaeostylops)probably belongs to the earliest late Paleocene.Another fossiliferous bed mainly containing Gomphos is near the Paleocene-Eocene boundary.

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What this paper is about

The results of paleomagnetism experiments indicate that the composite Paleogene section from the Nuhetingboerhe-Huheboerhe area,Erlian Basin,records 5 normal polarity zones and 6 reversed polarity zones.These polarities can well be correlated to the chron C21r-C26r of GPTS 2004(Lourens et al.,2004),though some zones are not intact.The Nomogen Formation mainly consists of late Paleocene deposits,with some earliest Eocene and middle Paleocene strata.The Arshanto Formation represents a longer time,spanning from the early Eocene to the middle Eocene.The Irdin Manha Formation is entirely constrained within the middle Eocene.The age of the fossiliferous bed(with the fossils Lambdopsalis,Prionessus and Palaeostylops)probably belongs to the earliest late Paleocene.Another fossiliferous bed mainly containing Gomphos is near the Paleocene-Eocene boundary.

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Available abstract

The results of paleomagnetism experiments indicate that the composite Paleogene section from the Nuhetingboerhe-Huheboerhe area,Erlian Basin,records 5 normal polarity zones and 6 reversed polarity zones.These polarities can well be correlated to the chron C21r-C26r of GPTS 2004(Lourens et al.,2004),though some zones are not intact.The Nomogen Formation mainly consists of late Paleocene deposits,with some earliest Eocene and middle Paleocene strata.The Arshanto Formation represents a longer time,spanning from the early Eocene to the middle Eocene.The Irdin Manha Formation is entirely constrained within the middle Eocene.The age of the fossiliferous bed(with the fossils Lambdopsalis,Prionessus and Palaeostylops)probably belongs to the earliest late Paleocene.Another fossiliferous bed mainly containing Gomphos is near the Paleocene-Eocene boundary.

Key concepts: Paleogene, Paleontology, Magnetostratigraphy, Geology, Paleomagnetism, Structural basin, Polarity (international relations), Biostratigraphy

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