Age of the youngest Palaeogene flood basalts in East Greenland

C. Heilmann-Clausen; Stefan Piasecki; Niels Abrahamsen; M. Larsen; Lars Stemmerik

doi:10.1127/0078-0421/2008/0043-0055

Age of the youngest Palaeogene flood basalts in East Greenland

C. Heilmann-Clausen, Stefan Piasecki, Niels Abrahamsen, M. Larsen, Lars Stemmerik

5 Citationer (Scopus)

Abstract

Intra-basaltic sediments 50 m below the top of the Paleogene lava succession at Kap Dalton, East Greenland, contain dinoflagellate cysts of late Ypresian-earliest Lutetian age, while sediments immediately above the lavas contain an assemblage of early Lutetian age. Combined with paleomagnetic results, this constrains the termination of the East Greenland Paleogene Igneous Province to the Early-Middle Eocene transition (nannoplankton chronozones NP13-NP14/earliest NP15). This is 6-8 Ma younger than according to previous biostratigraphic age assignments. The new data show that flood basalt volcanism occurred simultaneously with major intrusions occurring further to the south. This corroborates previous assumptions of an important melting event much younger than the continental break-up.

Originalsprog	Engelsk
Tidsskrift	Newsletters on Stratigraphy
Vol/bind	43
Udgave nummer	1
Sider (fra-til)	55-63
ISSN	0078-0421
DOI	https://doi.org/10.1127/0078-0421/2008/0043-0055
Status	Udgivet - 2008

Emneord

Det Natur- og Biovidenskabelige Fakultet
Øst Grønland
Basalt
geologi

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10.1127/0078-0421/2008/0043-0055

Citationsformater

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title = "Age of the youngest Palaeogene flood basalts in East Greenland",

abstract = "Intra-basaltic sediments 50 m below the top of the Paleogene lava succession at Kap Dalton, East Greenland, contain dinoflagellate cysts of late Ypresian-earliest Lutetian age, while sediments immediately above the lavas contain an assemblage of early Lutetian age. Combined with paleomagnetic results, this constrains the termination of the East Greenland Paleogene Igneous Province to the Early-Middle Eocene transition (nannoplankton chronozones NP13-NP14/earliest NP15). This is 6-8 Ma younger than according to previous biostratigraphic age assignments. The new data show that flood basalt volcanism occurred simultaneously with major intrusions occurring further to the south. This corroborates previous assumptions of an important melting event much younger than the continental break-up.",

keywords = "Faculty of Science, {\O}st Gr{\o}nland, Basalt, geologi, paleogene flood basalts, East Greenland, Basalt, geology",

author = "C. Heilmann-Clausen and Stefan Piasecki and Niels Abrahamsen and M. Larsen and Lars Stemmerik",

year = "2008",

doi = "10.1127/0078-0421/2008/0043-0055",

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T1 - Age of the youngest Palaeogene flood basalts in East Greenland

AU - Heilmann-Clausen, C.

AU - Piasecki, Stefan

AU - Abrahamsen, Niels

AU - Larsen, M.

AU - Stemmerik, Lars

PY - 2008

Y1 - 2008

N2 - Intra-basaltic sediments 50 m below the top of the Paleogene lava succession at Kap Dalton, East Greenland, contain dinoflagellate cysts of late Ypresian-earliest Lutetian age, while sediments immediately above the lavas contain an assemblage of early Lutetian age. Combined with paleomagnetic results, this constrains the termination of the East Greenland Paleogene Igneous Province to the Early-Middle Eocene transition (nannoplankton chronozones NP13-NP14/earliest NP15). This is 6-8 Ma younger than according to previous biostratigraphic age assignments. The new data show that flood basalt volcanism occurred simultaneously with major intrusions occurring further to the south. This corroborates previous assumptions of an important melting event much younger than the continental break-up.

AB - Intra-basaltic sediments 50 m below the top of the Paleogene lava succession at Kap Dalton, East Greenland, contain dinoflagellate cysts of late Ypresian-earliest Lutetian age, while sediments immediately above the lavas contain an assemblage of early Lutetian age. Combined with paleomagnetic results, this constrains the termination of the East Greenland Paleogene Igneous Province to the Early-Middle Eocene transition (nannoplankton chronozones NP13-NP14/earliest NP15). This is 6-8 Ma younger than according to previous biostratigraphic age assignments. The new data show that flood basalt volcanism occurred simultaneously with major intrusions occurring further to the south. This corroborates previous assumptions of an important melting event much younger than the continental break-up.

KW - Faculty of Science

KW - Øst Grønland

KW - Basalt

KW - geologi

KW - paleogene flood basalts

KW - East Greenland

KW - Basalt

KW - geology

U2 - 10.1127/0078-0421/2008/0043-0055

DO - 10.1127/0078-0421/2008/0043-0055

M3 - Journal article

SN - 0078-0421

VL - 43

SP - 55

EP - 63

JO - Newsletters on Stratigraphy

JF - Newsletters on Stratigraphy

IS - 1

ER -

Age of the youngest Palaeogene flood basalts in East Greenland

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