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Impact of Timanian thrusts on the Phanerozoic tectonic history of Svalbard

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Impact of Timanian thrusts on

the Phanerozoic tectonic history of Svalbard

Jean-Baptiste Koehl

(2)

Impact of Timanian thrusts on

the Phanerozoic tectonic history of Svalbard

Jean-Baptiste Koehl

(3)

Impact of Timanian thrusts on

the Phanerozoic tectonic history of Svalbard

Jean-Baptiste Koehl

(4)

Impact of Timanian thrusts on

the Phanerozoic tectonic history of Svalbard

Jean-Baptiste Koehl

(5)

Impact of Timanian thrusts on

the Phanerozoic tectonic history of Svalbard

Jean-Baptiste Koehl

(6)

Impact of Timanian thrusts on

the Phanerozoic tectonic history of Svalbard

Jean-Baptiste Koehl

(7)

Impact of Timanian thrusts on

the Phanerozoic tectonic history of Svalbard

Jean-Baptiste Koehl

(8)
(9)
(10)
(11)

Goals

(12)

Goals

(13)

+

Goals

(14)

+

=

www.emgs.com

Goals

(15)

+

= +

www.emgs.com

Goals

(16)

+

= +

www.emgs.com

Goals

Panieri et al. 2018

(17)

Datasets

(18)

Datasets

(19)

Datasets

(20)

Datasets

(21)

Datasets

(22)

Datasets

(23)

Datasets

(24)

Outline 0

(25)

Outline

1 0

(26)

Outline

1

2 0

(27)

Outline

1

2 3

0

(28)

The Svalbard Archipelago is made of three terranes accreted together during the Caledonian Orogeny showing dominantly N–S-trending fabrics, folds and faults.

0

Labrousse et al. (2008)

(29)

The Svalbard Archipelago is made of three terranes accreted together during the Caledonian Orogeny showing dominantly N–S-trending fabrics, folds and faults.

0

Labrousse et al. (2008) Gasser (2014)

(30)

The Svalbard Archipelago is made of three terranes accreted together during the Caledonian Orogeny showing dominantly N–S-trending fabrics, folds and faults.

0

Labrousse et al. (2008) Gasser (2014)

(31)

The Svalbard Archipelago is made of three terranes accreted together during the Caledonian Orogeny showing dominantly N–S-trending fabrics, folds and faults.

0

Labrousse et al. (2008) Gasser (2014)

Gasser (2014)

(32)

The Svalbard Archipelago is made of three terranes accreted together during the Caledonian Orogeny showing dominantly N–S-trending fabrics, folds and faults.

0

Labrousse et al. (2008) Gasser (2014)

Gasser (2014)

(33)

The Svalbard Archipelago is made of three terranes accreted together during the Caledonian Orogeny showing dominantly N–S-trending fabrics, folds and faults.

0

Labrousse et al. (2008) Gasser (2014)

Gasser (2014)

(34)

Core complexes exhumed in the late Silurian–Devonian due to normal top-north, top-west and top-east movements along bowed shear zones.

0

Braathen et al. (2018)

(35)

Core complexes exhumed in the late Silurian–Devonian due to normal top-north, top-west and top-east movements along bowed shear zones.

0

Braathen et al. (2018)

(36)

Core complexes exhumed in the late Silurian–Devonian due to normal top-north, top-west and top-east movements along bowed shear zones.

0

Braathen et al. (2018)

(37)

Core complexes exhumed in the late Silurian–Devonian due to normal top-north, top-west and top-east movements along bowed shear zones.

0

Braathen et al. (2018)

(38)

Core complexes exhumed in the late Silurian–Devonian due to normal top-north, top-west and top-east movements along bowed shear zones.

0

W

Braathen et al. (2018)

(39)

Core complexes exhumed in the late Silurian–Devonian due to normal top-north, top-west and top-east movements along bowed shear zones.

0

W

Braathen et al. (2018)

(40)

Core complexes exhumed in the late Silurian–Devonian due to normal top-north, top-west and top-east movements along bowed shear zones.

0

W

Braathen et al. (2018)

(41)

In Svalbard, Pennsylvanian rifting led to the formation of thick N–S-trending sedimentary basins like the Billefjorden Trough, which parallel dominant Caledonian fabrics.

0

Gasser (2014)

(42)

In Svalbard, Pennsylvanian rifting led to the formation of thick N–S-trending sedimentary basins like the Billefjorden Trough, which parallel dominant Caledonian fabrics.

0

Gasser (2014)

(43)

In Svalbard, Pennsylvanian rifting led to the formation of thick N–S-trending sedimentary basins like the Billefjorden Trough, which parallel dominant Caledonian fabrics.

0

Gasser (2014)

(44)

In Svalbard, Pennsylvanian rifting led to the formation of thick N–S-trending sedimentary basins like the Billefjorden Trough, which parallel dominant Caledonian fabrics.

0

Gasser (2014)

(45)

In Svalbard, Pennsylvanian rifting led to the formation of thick N–S-trending sedimentary basins like the Billefjorden Trough, which parallel dominant Caledonian fabrics.

0

Gasser (2014)

Braathen et al. (2011)

(46)

0 In the Cenozoic, opening of the Labrador Sea and Baffin Bay led to transpression and the formation of the West Spitsbergen Fold-and-Thrust Belt in western Svalbard.

Gasser (2014)

(47)

0 In the Cenozoic, opening of the Labrador Sea and Baffin Bay led to transpression and the formation of the West Spitsbergen Fold-and-Thrust Belt in western Svalbard.

Gasser (2014)

(48)

0 In the Cenozoic, opening of the Labrador Sea and Baffin Bay led to transpression and the formation of the West Spitsbergen Fold-and-Thrust Belt in western Svalbard.

Gasser (2014)

(49)

0 In the Cenozoic, opening of the Labrador Sea and Baffin Bay led to transpression and the formation of the West Spitsbergen Fold-and-Thrust Belt in western Svalbard.

Leever et al. (2011)

Gasser (2014)

(50)

0 Subsequent Cenozoic extension led to the opening of the North Atlantic Ocean and movement of Svalbard from c. 400 km to the south along dextral fault zones.

Nemcok et al. (2016)

(51)

0 Subsequent Cenozoic extension led to the opening of the North Atlantic Ocean and movement of Svalbard from c. 400 km to the south along dextral fault zones.

Nemcok et al. (2016)

(52)

0 Subsequent Cenozoic extension led to the opening of the North Atlantic Ocean and movement of Svalbard from c. 400 km to the south along dextral fault zones.

Nemcok et al. (2016)

(53)

A major N–S-trending basement ridge in Isfjorden may represent the southwards continuation of the Bockfjorden Anticline core complex.

1

Gasser (2014)

(54)

A major N–S-trending basement ridge in Isfjorden may represent the southwards continuation of the Bockfjorden Anticline core complex.

1

Gasser (2014)

(55)

A major N–S-trending basement ridge in Isfjorden may represent the southwards continuation of the Bockfjorden Anticline core complex.

1

?

Gasser (2014)

(56)

A major N–S-trending basement ridge in Isfjorden may represent the southwards continuation of the Bockfjorden Anticline core complex.

1

?

Gasser (2014)

(57)

A major N–S-trending basement ridge in Isfjorden may represent the southwards continuation of the Bockfjorden Anticline core complex.

1

?

Gasser (2014) Blinova et al. (2013)

(58)

A major N–S-trending basement ridge in Isfjorden may represent the southwards continuation of the Bockfjorden Anticline core complex.

1

?

Gasser (2014) Blinova et al. (2013)

(59)

In Isfjorden, lens-shaped reflections may represent incisement processes commonly related to core complex exhumation.

1

Koehl et al. (in prep. a)

NW

0.5

SE

1

1.5

2

2.5

3

3.5

4

4.5

(60)

In Isfjorden, lens-shaped reflections may represent incisement processes commonly related to core complex exhumation.

1

Koehl et al. (in prep. a)

NW

0.5

SE

1

1.5

2

2.5

3

3.5

4

4.5

(61)

In Isfjorden, lens-shaped reflections may represent incisement processes commonly related to core complex exhumation.

1

Koehl et al. (in prep. a)

NW

0.5

SE

1

1.5

2

2.5

3

3.5

4

4.5

(62)

In Isfjorden, lens-shaped reflections may represent incisement processes commonly related to core complex exhumation.

1

Koehl et al. (in prep. a)

NW

0.5

SE

1

1.5

2

2.5

3

3.5

4

4.5

(63)

In Isfjorden, lens-shaped reflections may represent incisement processes commonly related to core complex exhumation.

1

Koehl et al. (in prep. a)

NW

0.5

SE

1

1.5

2

2.5

3

3.5

4

4.5

(64)

In Isfjorden, lens-shaped reflections may represent incisement processes commonly related to core complex exhumation.

1

Koehl et al. (in prep. a)

NW

0.5

SE

1

1.5

2

2.5

3

3.5

4

4.5

(65)

The potential continuation of the Bockfjorden Anticline in Isfjorden appears offset by > 10 km left-laterally, and c. 5 km vertically down to the south.

2

Gasser (2014)

(66)

The potential continuation of the Bockfjorden Anticline in Isfjorden appears offset by > 10 km left-laterally, and c. 5 km vertically down to the south.

2

Gasser (2014)

(67)

The potential continuation of the Bockfjorden Anticline in Isfjorden appears offset by > 10 km left-laterally, and c. 5 km vertically down to the south.

2

Gasser (2014)

(68)

The potential continuation of the Bockfjorden Anticline in Isfjorden appears offset by > 10 km left-laterally, and c. 5 km vertically down to the south.

2

Gasser (2014)

???

(69)

Gravimetric, aeromagnetic and seismic data in the Barents Sea show the existence of potentially inverted WNW–ESE- to NW–SE-striking Timamian thrusts.

2

Klitzke et al. (2019)

(70)

Gravimetric, aeromagnetic and seismic data in the Barents Sea show the existence of potentially inverted WNW–ESE- to NW–SE-striking Timamian thrusts.

2

Klitzke et al. (2019)

(71)

Gravimetric, aeromagnetic and seismic data in the Barents Sea show the existence of potentially inverted WNW–ESE- to NW–SE-striking Timamian thrusts.

2

Klitzke et al. (2019)

NNE SSW

1 0.5

1.5

2

2.5

3

3.5

4

4.5 Koehl et al. (in prep. a)

(72)

Gravimetric, aeromagnetic and seismic data in the Barents Sea show the existence of potentially inverted WNW–ESE- to NW–SE-striking Timamian thrusts.

2

Klitzke et al. (2019)

NNE SSW

1 0.5

1.5

2

2.5

3

3.5

4

4.5 Koehl et al. (in prep. a)

(73)

Gravimetric, aeromagnetic and seismic data in the Barents Sea show the existence of potentially inverted WNW–ESE- to NW–SE-striking Timamian thrusts.

2

Klitzke et al. (2019)

NNE SSW

1 0.5

1.5

2

2.5

3

3.5

4

4.5 Koehl et al. (in prep. a)

(74)

Gravimetric, aeromagnetic and seismic data in the Barents Sea show the existence of potentially inverted WNW–ESE- to NW–SE-striking Timamian thrusts.

2

Klitzke et al. (2019)

NNE SSW

1 0.5

1.5

2

2.5

3

3.5

4

4.5 Koehl et al. (in prep. a)

(75)

Gravimetric, aeromagnetic and seismic data in the Barents Sea show the existence of potentially inverted WNW–ESE- to NW–SE-striking Timamian thrusts.

2

Klitzke et al. (2019)

NNE SSW

1 0.5

1.5

2

2.5

3

3.5

4

4.5 Koehl et al. (in prep. a)

(76)

Gravimetric, aeromagnetic and seismic data in the Barents Sea show the existence of potentially inverted WNW–ESE- to NW–SE-striking Timamian thrusts.

2

?

Klitzke et al. (2019)

NNE SSW

1 0.5

1.5

2

2.5

3

3.5

4

4.5 Koehl et al. (in prep. a)

(77)

Gravimetric, aeromagnetic and seismic data in the Barents Sea show the existence of potentially inverted WNW–ESE- to NW–SE-striking Timamian thrusts.

2

?

Klitzke et al. (2019)

NNE SSW

1 0.5

1.5

2

2.5

3

3.5

4

4.5 Koehl et al. (in prep. a)

(78)

In Storfjorden, a high-angle brittle fault folding the seafloor merges with a suite of

moderate amplitude reflections possibly representing a major WNW–ESE-striking thrust.

2

Koehl et al. (in prep. a)

N

1

2

3

4

5

6

S

(79)

In Storfjorden, a high-angle brittle fault folding the seafloor merges with a suite of

moderate amplitude reflections possibly representing a major WNW–ESE-striking thrust.

2

Koehl et al. (in prep. a)

N

1

2

3

4

5

6

S

(80)

In Storfjorden, a high-angle brittle fault folding the seafloor merges with a suite of

moderate amplitude reflections possibly representing a major WNW–ESE-striking thrust.

2

Koehl et al. (in prep. a)

N

1

2

3

4

5

6

S

(81)

In Storfjorden, a high-angle brittle fault folding the seafloor merges with a suite of

moderate amplitude reflections possibly representing a major WNW–ESE-striking thrust.

2

Koehl et al. (in prep. a)

N

1

2

3

4

5

6

S

(82)

In Storfjorden, a high-angle brittle fault folding the seafloor merges with a suite of

moderate amplitude reflections possibly representing a major WNW–ESE-striking thrust.

2

Koehl et al. (in prep. a)

N

1

2

3

4

5

6

S

(83)

In Storfjorden, a high-angle brittle fault folding the seafloor merges with a suite of

moderate amplitude reflections possibly representing a major WNW–ESE-striking thrust.

2

Koehl et al. (in prep. a)

N

1

2

3

4

5

6

S

(84)

In Storfjorden, a high-angle brittle fault folding the seafloor merges with a suite of

moderate amplitude reflections possibly representing a major WNW–ESE-striking thrust.

2

Koehl et al. (in prep. a)

N

1

2

3

4

5

6

S

(85)

In Storfjorden, a high-angle brittle fault folding the seafloor merges with a suite of

moderate amplitude reflections possibly representing a major WNW–ESE-striking thrust.

2

Koehl et al. (in prep. a)

N

1

2

3

4

5

6

S

(86)

Bathymetry data in Billefjorden show that the N–S-striking Billefjorden Fault Zone is left-laterally offset by WNW–ESE-striking fault-related escarpments.

2

Gasser (2014)

(87)

Bathymetry data in Billefjorden show that the N–S-striking Billefjorden Fault Zone is left-laterally offset by WNW–ESE-striking fault-related escarpments.

2

Gasser (2014)

(88)

Bathymetry data in Billefjorden show that the N–S-striking Billefjorden Fault Zone is left-laterally offset by WNW–ESE-striking fault-related escarpments.

2

Gasser (2014) Baeten et al. (2010)

(89)

Bathymetry data in Billefjorden show that the N–S-striking Billefjorden Fault Zone is left-laterally offset by WNW–ESE-striking fault-related escarpments.

2

Gasser (2014) Baeten et al. (2010)

(90)

Bathymetry data in Billefjorden show that the N–S-striking Billefjorden Fault Zone is left-laterally offset by WNW–ESE-striking fault-related escarpments.

2

Gasser (2014) Baeten et al. (2010)

(91)

Bathymetry data in Billefjorden show that the N–S-striking Billefjorden Fault Zone is left-laterally offset by WNW–ESE-striking fault-related escarpments.

2

Gasser (2014) Baeten et al. (2010)

(92)

Bathymetry data in Billefjorden show that the N–S-striking Billefjorden Fault Zone is left-laterally offset by WNW–ESE-striking fault-related escarpments.

2

Gasser (2014)Allaart et al. (2018) Baeten et al. (2010)

(93)

Bathymetry data in Billefjorden show that the N–S-striking Billefjorden Fault Zone is left-laterally offset by WNW–ESE-striking fault-related escarpments.

2

Gasser (2014)Allaart et al. (2018) Baeten et al. (2010)

(94)

Bathymetry data in Billefjorden show that the N–S-striking Billefjorden Fault Zone is left-laterally offset by WNW–ESE-striking fault-related escarpments.

2

Gasser (2014)Allaart et al. (2018) Baeten et al. (2010)

(95)

Bathymetry data in Billefjorden show that the N–S-striking Billefjorden Fault Zone is left-laterally offset by WNW–ESE-striking fault-related escarpments.

2

Gasser (2014)Allaart et al. (2018) Baeten et al. (2010)

(96)

Bathymetry data in Billefjorden show that the N–S-striking Billefjorden Fault Zone is left-laterally offset by WNW–ESE-striking fault-related escarpments.

2

Gasser (2014)Allaart et al. (2018) Koehl et al. (in prep. b)

Baeten et al. (2010)

(97)

Bathymetry data in Billefjorden show that the N–S-striking Billefjorden Fault Zone is left-laterally offset by WNW–ESE-striking fault-related escarpments.

2

Gasser (2014)Allaart et al. (2018) Koehl et al. (in prep. b)

Baeten et al. (2010)

(98)

Bathymetry data in Billefjorden show that the N–S-striking Billefjorden Fault Zone is left-laterally offset by WNW–ESE-striking fault-related escarpments.

2

Gasser (2014)Allaart et al. (2018) Koehl et al. (in prep. b)

Baeten et al. (2010)

(99)

Bathymetry data in Billefjorden show that the N–S-striking Billefjorden Fault Zone is left-laterally offset by WNW–ESE-striking fault-related escarpments.

2

Gasser (2014)Allaart et al. (2018) Koehl et al. (in prep. b)

Baeten et al. (2010)

(100)

Bathymetry data in Kongsfjorden show that WNW–ESE-trending fault-related escarpments offset a N–S-striking Cenozoic fault by 4.5 km left-laterally.

2

Gasser (2014)

???

(101)

Bathymetry data in Kongsfjorden show that WNW–ESE-trending fault-related escarpments offset a N–S-striking Cenozoic fault by 4.5 km left-laterally.

2

Gasser (2014)

???

(102)

Bathymetry data in Kongsfjorden show that WNW–ESE-trending fault-related escarpments offset a N–S-striking Cenozoic fault by 4.5 km left-laterally.

2

Gasser (2014)

???

Koehl et al. (in prep. a)

(103)

Bathymetry data in Kongsfjorden show that WNW–ESE-trending fault-related escarpments offset a N–S-striking Cenozoic fault by 4.5 km left-laterally.

2

Gasser (2014)

???

Koehl et al. (in prep. a)

(104)

Bathymetry data in Kongsfjorden show that WNW–ESE-trending fault-related escarpments offset a N–S-striking Cenozoic fault by 4.5 km left-laterally.

2

Gasser (2014)

???

Koehl et al. (in prep. a)

(105)

Bathymetry data in Kongsfjorden show that WNW–ESE-trending fault-related escarpments offset a N–S-striking Cenozoic fault by 4.5 km left-laterally.

2

Gasser (2014)

???

Koehl et al. (in prep. a)

(106)

Bathymetry data in Kongsfjorden show that WNW–ESE-trending fault-related escarpments offset a N–S-striking Cenozoic fault by 4.5 km left-laterally.

2

Gasser (2014)

???

Koehl et al. (in prep. a)

(107)

Bathymetry data in Kongsfjorden show that WNW–ESE-trending fault-related escarpments offset a N–S-striking Cenozoic fault by 4.5 km left-laterally.

2

Gasser (2014)

???

Koehl et al. (in prep. a)

(108)

Bathymetry data in Kongsfjorden show that WNW–ESE-trending fault-related escarpments offset a N–S-striking Cenozoic fault by 4.5 km left-laterally.

2

Gasser (2014)

???

Koehl et al. (in prep. a)

(109)

Bathymetry data in Kongsfjorden show that WNW–ESE-trending fault-related escarpments offset a N–S-striking Cenozoic fault by 4.5 km left-laterally.

2

Gasser (2014)

???

Koehl et al. (in prep. a)

(110)

On the 29th of March 2016, an earthquake coinciding with the location of the WNW–ESE- striking Timanian thrust struck near the southwestern coast of Edgeøya.

2

Gasser (2014)

(111)

On the 29th of March 2016, an earthquake coinciding with the location of the WNW–ESE- striking Timanian thrust struck near the southwestern coast of Edgeøya.

2

Gasser (2014)

(112)

On the 29th of March 2016, an earthquake coinciding with the location of the WNW–ESE- striking Timanian thrust struck near the southwestern coast of Edgeøya.

2

Gasser (2014)

(113)

On the 29th of March 2016, an earthquake coinciding with the location of the WNW–ESE- striking Timanian thrust struck near the southwestern coast of Edgeøya.

2

Gasser (2014)

(114)

On the 29th of March 2016, an earthquake coinciding with the location of the WNW–ESE- striking Timanian thrust struck near the southwestern coast of Edgeøya.

2

Gasser (2014)

(115)

On the 29th of March 2016, an earthquake coinciding with the location of the WNW–ESE- striking Timanian thrust struck near the southwestern coast of Edgeøya.

2

Gasser (2014)

(116)

On the 29th of March 2016, an earthquake coinciding with the location of the WNW–ESE- striking Timanian thrust struck near the southwestern coast of Edgeøya.

2

Gasser (2014)

(117)

Tilt-derivative aeromagnetic data suggest that N–S-trending Greenvillian, Caledonian and Devonian basement ridges are crosscut by WNW–ESE-striking faults.

2

Koehl et al. (in prep. a)

(118)

Tilt-derivative aeromagnetic data suggest that N–S-trending Greenvillian, Caledonian and Devonian basement ridges are crosscut by WNW–ESE-striking faults.

2

Koehl et al. (in prep. a)

(119)

Tilt-derivative aeromagnetic data suggest that N–S-trending Greenvillian, Caledonian and Devonian basement ridges are crosscut by WNW–ESE-striking faults.

2

Koehl et al. (in prep. a)

(120)

Tilt-derivative aeromagnetic data suggest that N–S-trending Greenvillian, Caledonian and Devonian basement ridges are crosscut by WNW–ESE-striking faults.

2

Koehl et al. (in prep. a)

(121)

Tilt-derivative aeromagnetic data suggest that N–S-trending Greenvillian, Caledonian and Devonian basement ridges are crosscut by WNW–ESE-striking faults.

2

Koehl et al. (in prep. a)

(122)

Tilt-derivative aeromagnetic data suggest that N–S-trending Greenvillian, Caledonian and Devonian basement ridges are crosscut by WNW–ESE-striking faults.

2

Koehl et al. (in prep. a)

(123)

Tilt-derivative aeromagnetic data suggest that N–S-trending Greenvillian, Caledonian and Devonian basement ridges are crosscut by WNW–ESE-striking faults.

2

Koehl et al. (in prep. a)

(124)

Tilt-derivative aeromagnetic data suggest that N–S-trending Greenvillian, Caledonian and Devonian basement ridges are crosscut by WNW–ESE-striking faults.

2

Koehl et al. (in prep. a)

(125)

Tilt-derivative aeromagnetic data suggest that N–S-trending Greenvillian, Caledonian and Devonian basement ridges are crosscut by WNW–ESE-striking faults.

2

Koehl et al. (in prep. a)

(126)

Tilt-derivative aeromagnetic data suggest that N–S-trending Greenvillian, Caledonian and Devonian basement ridges are crosscut by WNW–ESE-striking faults.

2

Koehl et al. (in prep. a)

(127)

Tilt-derivative aeromagnetic data suggest that N–S-trending Greenvillian, Caledonian and Devonian basement ridges are crosscut by WNW–ESE-striking faults.

2

Koehl et al. (in prep. a)

(128)

Koehl et al. (in prep. a)

Seismic data in Storfjorden show a series of possibly Timanian thrust sequences verging to the SSW.

2

NNE

SSW

1 2 3 4 5 6

1 2 3 4 5 6

(129)

Koehl et al. (in prep. a)

Seismic data in Storfjorden show a series of possibly Timanian thrust sequences verging to the SSW.

2

NNE

SSW

1 2 3 4 5 6

1 2 3 4 5 6

(130)

Koehl et al. (in prep. a)

Seismic data in Storfjorden show a series of possibly Timanian thrust sequences verging to the SSW.

2

NNE

SSW

1 2 3 4 5 6

1 2 3 4 5 6

(131)

Koehl et al. (in prep. a)

Seismic data in Storfjorden show a series of possibly Timanian thrust sequences verging to the SSW.

2

NNE

SSW

1 2 3 4 5 6

1 2 3 4 5 6

KCF

(132)

Koehl et al. (in prep. a)

Seismic data in Storfjorden show a series of possibly Timanian thrust sequences verging to the SSW.

2

NNE

SSW

1 2 3 4 5 6

1 2 3 4 5 6

KCF

(133)

Koehl et al. (in prep. a)

Seismic data in Storfjorden show a series of possibly Timanian thrust sequences verging to the SSW.

2

NNE

SSW

1 2 3 4 5 6

1 2 3 4 5 6

KCF

ISSF

(134)

Koehl et al. (in prep. a)

Seismic data in Storfjorden show a series of possibly Timanian thrust sequences verging to the SSW.

2

NNE

SSW

1 2 3 4 5 6

1 2 3 4 5 6

KCF

ISSF

(135)

Koehl et al. (in prep. a)

Seismic data in Storfjorden show a series of possibly Timanian thrust sequences verging to the SSW.

2

NNE

SSW

1 2 3 4 5 6

1 2 3 4 5 6

KCF

BSZ ISSF

(136)

Koehl et al. (in prep. a)

Seismic data in Storfjorden show a series of possibly Timanian thrust sequences verging to the SSW.

2

NNE

SSW

1 2 3 4 5 6

1 2 3 4 5 6

KCF

BSZ ISSF

(137)

Koehl et al. (in prep. a)

Seismic data in Storfjorden show a series of possibly Timanian thrust sequences verging to the SSW.

2

NNE

SSW

1 2 3 4 5 6

1 2 3 4 5 6

KCF

BSZ ISSF

(138)

Koehl et al. (in prep. a)

Seismic data in Storfjorden show a series of possibly Timanian thrust sequences verging to the SSW.

2

NNE

SSW

1 2 3 4 5 6

1 2 3 4 5 6

KCF

BSZ ISSF

(139)

Koehl et al. (in prep. a)

Seismic data in Storfjorden show a series of possibly Timanian thrust sequences verging to the SSW.

2

NNE

SSW

1 2 3 4 5 6

1 2 3 4 5 6

KCF

BSZ

VKSZ ISSF

(140)

Koehl et al. (in prep. a)

Seismic data in Storfjorden show a series of possibly Timanian thrust sequences verging to the SSW.

2

NNE

SSW

1 2 3 4 5 6

1 2 3 4 5 6

KCF

BSZ

VKSZ ISSF

(141)

Koehl et al. (in prep. a)

Seismic data in Storfjorden show a series of possibly Timanian thrust sequences verging to the SSW.

2

NNE

SSW

1 2 3 4 5 6

1 2 3 4 5 6

KCF

BSZ

VKSZ ISSF

(142)

The Mid-Ocean Ridge is segmented by major transform faults that trend parallel to Timanian faults and topographic highs of continental origin, like the Hovgård Ridge.

3

Jakobsson et al. (2012)

(143)

The Mid-Ocean Ridge is segmented by major transform faults that trend parallel to Timanian faults and topographic highs of continental origin, like the Hovgård Ridge.

3

Jakobsson et al. (2012)

(144)

The Mid-Ocean Ridge is segmented by major transform faults that trend parallel to Timanian faults and topographic highs of continental origin, like the Hovgård Ridge.

3

Jakobsson et al. (2012)

(145)

The Mid-Ocean Ridge is segmented by major transform faults that trend parallel to Timanian faults and topographic highs of continental origin, like the Hovgård Ridge.

3

Jakobsson et al. (2012)

(146)

The Mid-Ocean Ridge is segmented by major transform faults that trend parallel to Timanian faults and topographic highs of continental origin, like the Hovgård Ridge.

3

Jakobsson et al. (2012)

(147)

The Mid-Ocean Ridge is segmented by major transform faults that trend parallel to Timanian faults and topographic highs of continental origin, like the Hovgård Ridge.

3

Jakobsson et al. (2012)

(148)

The Mid-Ocean Ridge is segmented by major transform faults that trend parallel to Timanian faults and topographic highs of continental origin, like the Hovgård Ridge.

3

Jakobsson et al. (2012)

(149)

The Hovgård Ridge may represent the western continuation of a Timanian thrust that was ripped off Svalbard during the breakup of the North Atlantic Ocean.

3

Koehl et al. (in prep. c)

SW

1

2

3

4

5

6

7

8

NE

(150)

The Hovgård Ridge may represent the western continuation of a Timanian thrust that was ripped off Svalbard during the breakup of the North Atlantic Ocean.

3

Koehl et al. (in prep. c)

SW

1

2

3

4

5

6

7

8

NE

(151)

The Hovgård Ridge may represent the western continuation of a Timanian thrust that was ripped off Svalbard during the breakup of the North Atlantic Ocean.

3

Koehl et al. (in prep. c)

SW

1

2

3

4

5

6

7

8

NE

(152)

The Hovgård Ridge may represent the western continuation of a Timanian thrust that was ripped off Svalbard during the breakup of the North Atlantic Ocean.

3

Koehl et al. (in prep. c)

SW

1

2

3

4

5

6

7

8

NE

(153)

Gas leakage along the crest of the Vestnesa Ridge result in gas flares.

3

Jakobsson et al. (2012)

(154)

Gas leakage along the crest of the Vestnesa Ridge result in gas flares.

3

Jakobsson et al. (2012)

(155)

Gas leakage along the crest of the Vestnesa Ridge result in gas flares.

3

Jakobsson et al. (2012)

(156)

Gas leakage along the crest of the Vestnesa Ridge result in gas flares.

3

Jakobsson et al. (2012) Panieri et al. (2018)

(157)

Gas leakage along the crest of the Vestnesa Ridge result in gas flares.

3

Jakobsson et al. (2012) Panieri et al. (2018)

(158)

The Vestnesa Ridge may represent relict Timanian basement, which might (have) partly control(led) gas leakage west of Svalbard.

3

SW

6

NE

5 4 3 2 1

7

Koehl et al. (in prep. c)

(159)

The Vestnesa Ridge may represent relict Timanian basement, which might (have) partly control(led) gas leakage west of Svalbard.

3

SW

6

NE

5 4 3 2 1

7

Koehl et al. (in prep. c)

(160)

The Vestnesa Ridge may represent relict Timanian basement, which might (have) partly control(led) gas leakage west of Svalbard.

3

SW

6

NE

5 4 3 2 1

7

Koehl et al. (in prep. c)

(161)

The Vestnesa Ridge may represent relict Timanian basement, which might (have) partly control(led) gas leakage west of Svalbard.

3

SW

6

NE

5 4 3 2 1

7

Tremblay et al. (2009)

Koehl et al. (in prep. c)

(162)

The Vestnesa Ridge may represent relict Timanian basement, which might (have) partly control(led) gas leakage west of Svalbard.

3

SW

6

NE

5 4 3 2 1

7

Tremblay et al. (2009)

Koehl et al. (in prep. c)

(163)

The Vestnesa Ridge may represent relict Timanian basement, which might (have) partly control(led) gas leakage west of Svalbard.

3

SW

6

NE

5 4 3 2 1

7

Tremblay et al. (2009)

Koehl et al. (in prep. c)

(164)

The Vestnesa Ridge may represent relict Timanian basement, which might (have) partly control(led) gas leakage west of Svalbard.

3

SW

6

NE

5 4 3 2 1

7

www-odp.tamu.edu

Tremblay et al. (2009)

Koehl et al. (in prep. c)

(165)

The Vestnesa Ridge may represent relict Timanian basement, which might (have) partly control(led) gas leakage west of Svalbard.

3

SW

6

NE

5 4 3 2 1

7

www-odp.tamu.edu

Tremblay et al. (2009)

Koehl et al. (in prep. c)

(166)

The Vestnesa Ridge may represent relict Timanian basement, which might (have) partly control(led) gas leakage west of Svalbard.

3

SW

6

NE

5 4 3 2 1

7

www-odp.tamu.edu

Tremblay et al. (2009)

Koehl et al. (in prep. c)

(167)

The Knipovich and Molloy ridges likely formed along oblique Caledonian weakness zones, while major transforms formed subparallel to Neoproterozoic (Timanian?) thrusts.

3

Molnar et al. (2017)

(168)

The Knipovich and Molloy ridges likely formed along oblique Caledonian weakness zones, while major transforms formed subparallel to Neoproterozoic (Timanian?) thrusts.

3

Molnar et al. (2017) Jakobsson et al. (2012)

(169)

The Knipovich and Molloy ridges likely formed along oblique Caledonian weakness zones, while major transforms formed subparallel to Neoproterozoic (Timanian?) thrusts.

3

Molnar et al. (2017) Jakobsson et al. (2012)

(170)

The Knipovich and Molloy ridges likely formed along oblique Caledonian weakness zones, while major transforms formed subparallel to Neoproterozoic (Timanian?) thrusts.

3

Molnar et al. (2017) Jakobsson et al. (2012)

(171)

The Knipovich and Molloy ridges likely formed along oblique Caledonian weakness zones, while major transforms formed subparallel to Neoproterozoic (Timanian?) thrusts.

3

Molnar et al. (2017) Jakobsson et al. (2012)

(172)

The Knipovich and Molloy ridges likely formed along oblique Caledonian weakness zones, while major transforms formed subparallel to Neoproterozoic (Timanian?) thrusts.

3

Molnar et al. (2017) Jakobsson et al. (2012)

(173)

The Knipovich and Molloy ridges likely formed along oblique Caledonian weakness zones, while major transforms formed subparallel to Neoproterozoic (Timanian?) thrusts.

3

Molnar et al. (2017) Jakobsson et al. (2012)

(174)

The Knipovich and Molloy ridges likely formed along oblique Caledonian weakness zones, while major transforms formed subparallel to Neoproterozoic (Timanian?) thrusts.

3

Molnar et al. (2017) Jakobsson et al. (2012)

(175)

The Knipovich and Molloy ridges likely formed along oblique Caledonian weakness zones, while major transforms formed subparallel to Neoproterozoic (Timanian?) thrusts.

3

Molnar et al. (2017) Jakobsson et al. (2012)

(176)

The Knipovich and Molloy ridges likely formed along oblique Caledonian weakness zones, while major transforms formed subparallel to Neoproterozoic (Timanian?) thrusts.

3

Molnar et al. (2017) Jakobsson et al. (2012)

(177)

The Knipovich and Molloy ridges likely formed along oblique Caledonian weakness zones, while major transforms formed subparallel to Neoproterozoic (Timanian?) thrusts.

3

Molnar et al. (2017) Jakobsson et al. (2012)

(178)

The Knipovich and Molloy ridges likely formed along oblique Caledonian weakness zones, while major transforms formed subparallel to Neoproterozoic (Timanian?) thrusts.

3

Molnar et al. (2017) Jakobsson et al. (2012)

(179)

Earliest Mississippian amphibolite facies metamorphism and down-west kinematics in western Svalbard may be related to core complex exhumation.

3

Gasser (2014)

(180)

Earliest Mississippian amphibolite facies metamorphism and down-west kinematics in western Svalbard may be related to core complex exhumation.

3

Gasser (2014)

(181)

Earliest Mississippian amphibolite facies metamorphism and down-west kinematics in western Svalbard may be related to core complex exhumation.

3

Gasser (2014) Schneider et al. (2018)

(182)

Earliest Mississippian amphibolite facies metamorphism and down-west kinematics in western Svalbard may be related to core complex exhumation.

3

Gasser (2014) Schneider et al. (2018)

(183)

Earliest Mississippian amphibolite facies metamorphism and down-west kinematics in western Svalbard may be related to core complex exhumation.

3

Gasser (2014) Schneider et al. (2018)

(184)

Earliest Mississippian amphibolite facies metamorphism and down-west kinematics in western Svalbard may be related to core complex exhumation.

3

Gasser (2014) Schneider et al. (2018)

(185)

Earliest Mississippian amphibolite facies metamorphism and down-west kinematics in western Svalbard may be related to core complex exhumation.

3

Gasser (2014) Schneider et al. (2018)

(186)

Earliest Mississippian amphibolite facies metamorphism and down-west kinematics in western Svalbard may be related to core complex exhumation.

3

Gasser (2014) Schneider et al. (2018)

(187)

Earliest Mississippian amphibolite facies metamorphism and down-west kinematics in western Svalbard may be related to core complex exhumation.

3

Gasser (2014) Schneider et al. (2018)

(188)

Basement ridges northwest/west of Spitsbergen may have exhumed as metamorphic core complexes and represent the northern continuation of Prins Karls Forland basement rocks.

3

1

2

3

4

5

W E

Koehl et al. (in prep. a)

(189)

Basement ridges northwest/west of Spitsbergen may have exhumed as metamorphic core complexes and represent the northern continuation of Prins Karls Forland basement rocks.

3

1

2

3

4

5

W E

Koehl et al. (in prep. a)

(190)

Basement ridges northwest/west of Spitsbergen may have exhumed as metamorphic core complexes and represent the northern continuation of Prins Karls Forland basement rocks.

3

1

2

3

4

5

W E

Koehl et al. (in prep. a)

(191)

Basement ridges northwest/west of Spitsbergen may have exhumed as metamorphic core complexes and represent the northern continuation of Prins Karls Forland basement rocks.

3

1

2

3

4

5

W E

Koehl et al. (in prep. a)

(192)

Basement ridges northwest/west of Spitsbergen may have exhumed as metamorphic core complexes and represent the northern continuation of Prins Karls Forland basement rocks.

3

1

2

3

4

5

W E

Koehl et al. (in prep. a)

(193)

Basement ridges northwest/west of Spitsbergen may have exhumed as metamorphic core complexes and represent the northern continuation of Prins Karls Forland basement rocks.

3

1

2

3

4

5

W E

Koehl et al. (in prep. a)

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