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

Geology

6 Citations (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.

Original language	English
Journal	Canadian Journal of Earth Sciences
Volume	45
Pages (from-to)	465-481
ISSN	0008-4077
Publication status	Published - 2008

Keywords

Faculty of Science
Labrador
offshore
seismic
crustal structure

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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",

author = "T. Funck and A.K. Hansen and Reid, {Ian Derry} and K.E. Louden",

year = "2008",

language = "English",

volume = "45",

pages = "465--481",

journal = "Canadian Journal of Earth Sciences",

issn = "0008-4077",

publisher = "N R C Research Press",

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TY - JOUR

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.

Abstract

Keywords

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