The crustal structure of the Southern Nain and Makkovik Provinces of Labrador deriverd from seismic refraction data.

T. Funck; A.K. Hansen; Ian Derry Reid; K.E. Louden

The crustal structure of the Southern Nain and Makkovik Provinces of Labrador deriverd from seismic refraction data.

T. Funck, A.K. Hansen, Ian Derry Reid, K.E. Louden

Geologi

6 Citationer (Scopus)

Abstract

A refraction seismic profile was used to determine the crustal structure across the Nain/ Makkovik boundary, and to look for an offshore continuation of the Nain Plutonic Suite (NPS). Velocity models were developed from forward and inverse modeling of travel times. There are. In the Saglek block the crust has P-wave velocity 5.8 -6.9 km/s. Further south, upper crustal velocities iand the Poisson's ratio increase. This zone correlates with a gravity low interpreted as the NPS. The upper crustal velocities are compatible with the NPS. There is a lower crustal reflector under the NPS. In the Makkovik Province, upper crustal velocities are 5.9-6.2 km/s.. Moho is between 28 and 36 km. The variations may relate to Labrador Sea rifting.

Originalsprog	Engelsk
Tidsskrift	Canadian Journal of Earth Sciences
Vol/bind	45
Sider (fra-til)	465-481
ISSN	0008-4077
Status	Udgivet - 2008

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Det Natur- og Biovidenskabelige Fakultet

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title = "The crustal structure of the Southern Nain and Makkovik Provinces of Labrador deriverd from seismic refraction data.",

abstract = "A refraction seismic profile was used to determine the crustal structure across the Nain/ Makkovik boundary, and to look for an offshore continuation of the Nain Plutonic Suite (NPS). Velocity models were developed from forward and inverse modeling of travel times. There are. In the Saglek block the crust has P-wave velocity 5.8 -6.9 km/s. Further south, upper crustal velocities iand the Poisson's ratio increase. This zone correlates with a gravity low interpreted as the NPS. The upper crustal velocities are compatible with the NPS. There is a lower crustal reflector under the NPS. In the Makkovik Province, upper crustal velocities are 5.9-6.2 km/s.. Moho is between 28 and 36 km. The variations may relate to Labrador Sea rifting.",

keywords = "Faculty of Science, Labrador, offshore, seismic, crustal structure",

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journal = "Canadian Journal of Earth Sciences",

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T1 - The crustal structure of the Southern Nain and Makkovik Provinces of Labrador deriverd from seismic refraction data.

AU - Funck, T.

AU - Hansen, A.K.

AU - Reid, Ian Derry

AU - Louden, K.E.

PY - 2008

Y1 - 2008

N2 - A refraction seismic profile was used to determine the crustal structure across the Nain/ Makkovik boundary, and to look for an offshore continuation of the Nain Plutonic Suite (NPS). Velocity models were developed from forward and inverse modeling of travel times. There are. In the Saglek block the crust has P-wave velocity 5.8 -6.9 km/s. Further south, upper crustal velocities iand the Poisson's ratio increase. This zone correlates with a gravity low interpreted as the NPS. The upper crustal velocities are compatible with the NPS. There is a lower crustal reflector under the NPS. In the Makkovik Province, upper crustal velocities are 5.9-6.2 km/s.. Moho is between 28 and 36 km. The variations may relate to Labrador Sea rifting.

AB - A refraction seismic profile was used to determine the crustal structure across the Nain/ Makkovik boundary, and to look for an offshore continuation of the Nain Plutonic Suite (NPS). Velocity models were developed from forward and inverse modeling of travel times. There are. In the Saglek block the crust has P-wave velocity 5.8 -6.9 km/s. Further south, upper crustal velocities iand the Poisson's ratio increase. This zone correlates with a gravity low interpreted as the NPS. The upper crustal velocities are compatible with the NPS. There is a lower crustal reflector under the NPS. In the Makkovik Province, upper crustal velocities are 5.9-6.2 km/s.. Moho is between 28 and 36 km. The variations may relate to Labrador Sea rifting.

KW - Faculty of Science

KW - Labrador

KW - offshore

KW - seismic

KW - crustal structure

M3 - Journal article

SN - 0008-4077

VL - 45

SP - 465

EP - 481

JO - Canadian Journal of Earth Sciences

JF - Canadian Journal of Earth Sciences

ER -

The crustal structure of the Southern Nain and Makkovik Provinces of Labrador deriverd from seismic refraction data.

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