New Zealand Seismic Surveys With the R/V Lansgseth 1) SHIRE - - PowerPoint PPT Presentation

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New Zealand Seismic Surveys With the R/V Lansgseth 1) SHIRE - - PowerPoint PPT Presentation

Oct 11, 2022 10 likes •208 views

New Zealand Seismic Surveys With the R/V Lansgseth 1) SHIRE Two-ship OBS/2D MCS -StaJons on land -OBS deployments NZ3D -Long streamer MCS Nov 1 st Dec 7 th SHIRE 2) NZ3D 3D mcs 15 x 60 km -OBS and land instruments Jan 6 th Feb

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SLIDE 1

New Zealand Seismic Surveys With the R/V Lansgseth SHIRE SISIE

1) SHIRE

Two-ship OBS/2D MCS

  • StaJons on land
  • OBS deployments
  • Long streamer MCS

Nov 1st – Dec 7th

2) NZ3D

3D mcs – 15 x 60 km

  • OBS and land

instruments Jan 6th – Feb 9th

3) SISIE

2D OBS/MCS

  • UTIG OBS
  • Long streamer MCS

Feb 13th – Mar 12th

NZ3D

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SLIDE 2

Science Goals

  • SHIRE

– Crustal scale structure of the subducJon zone and variaJon along the margin – Deep sediment and seamount subducJon; – Structure of the Hikurangi plateau (subducJng crust)

  • NZ3D

– Development of the megathrust its relaJon to slow-slip earthquakes.

  • SISIE

– SubducJon iniJaJon along the Puysegur trench

SHIRE SISIE NZ3D

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SLIDE 3

SHIRE

175˚ 176˚ 177˚ 178˚ 179˚ 180˚

  • 43˚
  • 43˚
  • 42˚
  • 42˚
  • 41˚
  • 41˚
  • 40˚
  • 40˚
  • 39˚
  • 39˚
  • 38˚
  • 38˚
  • 37˚
  • 37˚

L i n e 1 Line3 Line4 Line5 Line6 Line7 L i n e 8 Line10 Line11 Line12 L i n e 1 3 Line14 Line15 L i n e 1 6 Line17 Line18 Line19 Line20 Line21 Line22 Line23 Line24 L i n e 2 5 Line26 Line27 Line28 Line29 Line30 Line31 Line32 Line33 L i n e 3 4 Line35 Line36 Line37 L i n e 3 8 Line39 Line40 L i n e 4 1 Line42 Line43 L i n e 4 4 Line45 Line46 L i n e 4 7 L i n e 4 8 L i n e 4 9 Line50 Line51 Line52 Line53 Line54 L i n e 5 5 Line56 L i n e 5 7 Line58 Line59 L i n e 6 Line61 Line62 L i n e 6 3 Line64

R/V Langseth & R/V Tangaroa 104 – Land StaJons 110 – Japanese OBS deployments 1443 km OBS lines 4046 km MCS lines (12.7 km streamer) 102% of planned

Students

3 – Imperial College 2 – UT-AusJn 1 – Otaga University 1- University of Auckland

Postdoc

1- GNS Science

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SLIDE 4

Line 50 - Shot 60800

4 5 6 7 8 9 10 5 10 12.5 Source-receiver offset (km) Time (s)

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SLIDE 5

100 km

Time (s)

2 6 4

OBS Line 4 / MCS Line 40

175˚ 175˚ 176˚ 176˚ 177˚ 177˚ 178˚ 178˚ 179˚ 179˚ 180˚ 180˚

  • 43˚
  • 43˚
  • 42˚
  • 42˚
  • 41˚
  • 41˚
  • 40˚
  • 40˚
  • 39˚
  • 39˚
  • 38˚
  • 38˚
  • 37˚
  • 37˚
Line1 Line3 Line4 Line5 Line6 Line7 Line8 Line10 Line11 L i n e 1 2 Line13 Line14 L i n e 1 5 Line16 Line17 Line18 Line19 L i n e 2 Line21 L i n e 2 2 Line23 L i n e 2 4 L i n e 2 5 Line26 Line27 L i n e 2 8 L i n e 2 9 Line30 Line31 Line32 Line33 Line34 Line35 Line36 L i n e 3 7 L i n e 3 8 L i n e 3 9 Line40 Line41 L i n e 4 2 Line43 L i n e 4 4 Line45 Line46 Line47 L i n e 4 8 L i n e 4 9 Line50 Line51 L i n e 5 2 L i n e 5 3 Line54 L i n e 5 5 Line56 Line57 Line58 Line59 Line60 L i n e 6 1 Line62 Line63 Line64

S

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SLIDE 6

175˚ 175˚ 176˚ 176˚ 177˚ 177˚ 178˚ 178˚ 179˚ 179˚ 180˚ 180˚

  • 43˚
  • 43˚
  • 42˚
  • 42˚
  • 41˚
  • 41˚
  • 40˚
  • 40˚
  • 39˚
  • 39˚
  • 38˚
  • 38˚
  • 37˚
  • 37˚
Line1 Line3 Line4 Line5 Line6 Line7 Line8 Line10 Line11 L i n e 1 2 Line13 Line14 L i n e 1 5 Line16 Line17 Line18 Line19 L i n e 2 Line21 L i n e 2 2 Line23 L i n e 2 4 L i n e 2 5 Line26 Line27 L i n e 2 8 L i n e 2 9 Line30 Line31 Line32 Line33 Line34 Line35 Line36 L i n e 3 7 L i n e 3 8 L i n e 3 9 Line40 Line41 L i n e 4 2 Line43 L i n e 4 4 Line45 Line46 Line47 L i n e 4 8 L i n e 4 9 Line50 Line51 L i n e 5 2 L i n e 5 3 Line54 L i n e 5 5 Line56 Line57 Line58 Line59 Line60 L i n e 6 1 Line62 Line63 Line64

OBS Line 4 / MCS Line 40

100 km

Time (s)

2 6 4

S

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SLIDE 7

175˚ 175˚ 176˚ 176˚ 177˚ 177˚ 178˚ 178˚ 179˚ 179˚ 180˚ 180˚

  • 43˚
  • 43˚
  • 42˚
  • 42˚
  • 41˚
  • 41˚
  • 40˚
  • 40˚
  • 39˚
  • 39˚
  • 38˚
  • 38˚
  • 37˚
  • 37˚
Line1 Line3 Line4 Line5 Line6 Line7 Line8 Line10 Line11 L i n e 1 2 Line13 Line14 L i n e 1 5 Line16 Line17 Line18 Line19 L i n e 2 Line21 L i n e 2 2 Line23 L i n e 2 4 L i n e 2 5 Line26 Line27 L i n e 2 8 L i n e 2 9 Line30 Line31 Line32 Line33 Line34 Line35 Line36 L i n e 3 7 L i n e 3 8 L i n e 3 9 Line40 Line41 L i n e 4 2 Line43 L i n e 4 4 Line45 Line46 Line47 L i n e 4 8 L i n e 4 9 Line50 Line51 L i n e 5 2 L i n e 5 3 Line54 L i n e 5 5 Line56 Line57 Line58 Line59 Line60 L i n e 6 1 Line62 Line63 Line64

OBS Line 4 / MCS Line 40

S

25 km

Time (s)

6 4

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SLIDE 8

175˚ 176˚ 177˚ 178˚ 179˚ 180˚

  • 42˚
  • 42
  • 41˚
  • 41
  • 40˚
  • 40
  • 39˚
  • 39
  • 38˚
  • 38
  • 37˚
  • 37
Line1 Line3 Line4 Line5 L i n e 6 Line7 L i n e 8 L i n e 1 Line11 Line12 L i n e 1 3 Line14 Line15 Line16 Line17 L i n e 1 8 L i n e 1 9 L i n e 2 Line21 L i n e 2 2 L i n e 2 3 Line24 L i n e 2 5 Line26 Line27 Line28 L i n e 2 9 L i n e 3 Line31 Line32 Line33 L i n e 3 4 L i n e 3 5 L i n e 3 6 Line37 Line38 Line39 L i n e 4 Line41 Line42 L i n e 4 3 Line44 L i n e 4 5 Line46 L i n e 4 7 Line48 L i n e 4 9 Line50 Line51 Line52 L i n e 5 3 Line54 Line55 Line56 L i n e 5 7 Line58 Line59 Line60 L i n e 6 1 Line62 Line63 Line64

E

MCS Line 44

(processed by student Team B)

5 km

Time (s)

6 8 4

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SLIDE 9

MCS Line 48

175˚ 176˚ 177˚ 178˚ 179˚ 180˚

  • 43˚
  • 43
  • 42˚
  • 42
  • 41˚
  • 41
  • 40˚
  • 40
  • 39˚
  • 39
Line7 Line8 Line10 Line11 Line12 Line13 L i n e 1 4 Line15 Line16 L i n e 1 7 L i n e 1 8 Line19 L i n e 2 Line21 L i n e 2 2 Line23 L i n e 2 4 Line25 L i n e 2 6 Line27 L i n e 2 8 L i n e 2 9 Line30 L i n e 3 1 Line32 Line33 Line34 L i n e 3 5 Line36 Line37 Line38 L i n e 3 9 L i n e 4 Line41 Line42 Line43 L i n e 4 4 Line45 Line46 Line47 Line48 Line49 Line50 Line51 Line52 L i n e 5 3 L i n e 5 4 Line55 Line56 Line57 L i n e 5 8 Line59 Line60 Line61 Line62 Line63 L i n e 6 4

W

10 km

Time (s)

2 6 4

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SLIDE 10

MCS Line 42

175˚ 176˚ 177˚ 178˚ 179˚ 180˚

  • 43˚
  • 43˚
  • 42˚
  • 42˚
  • 41˚
  • 41˚
  • 40˚
  • 40˚
  • 39˚
  • 39˚
  • 38˚
  • 38˚
L i n e 1 Line3 L i n e 4 L i n e 6 Line7 Line8 L i n e 1 Line11 L i n e 1 2 Line13 Line14 L i n e 1 5 Line16 Line17 Line18 Line19 L i n e 2 Line21 L i n e 2 2 L i n e 2 3 L i n e 2 4 Line25 Line26 L i n e 2 7 Line28 Line29 Line30 Line31 Line32 Line33 Line34 L i n e 3 5 Line36 Line37 Line38 Line39 Line40 Line41 Line42 Line43 Line44 Line45 L i n e 4 6 Line47 Line48 L i n e 4 9 Line50 L i n e 5 1 Line52 L i n e 5 3 Line54 Line55 Line56 Line57 Line58 Line59 Line60 Line61 Line62 Line63 Line64

W

10 km

Time (s)

2 4

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SLIDE 11

MCS Line 48

W

10 km

Time (s)

2 6 8

175˚ 176˚ 177˚ 178˚ 179˚ 180˚

  • 43˚
  • 43
  • 42˚
  • 42
  • 41˚
  • 41
  • 40˚
  • 40
  • 39˚
  • 39
Line7 Line8 Line10 Line11 Line12 L i n e 1 3 L i n e 1 4 Line15 Line16 Line17 L i n e 1 8 Line19 L i n e 2 Line21 L i n e 2 2 Line23 Line24 Line25 L i n e 2 6 Line27 L i n e 2 8 L i n e 2 9 Line30 Line31 Line32 L i n e 3 3 Line34 L i n e 3 5 Line36 Line37 Line38 L i n e 3 9 L i n e 4 Line41 Line42 L i n e 4 3 Line44 Line45 Line46 L i n e 4 7 Line48 Line49 Line50 Line51 Line52 L i n e 5 3 L i n e 5 4 Line55 L i n e 5 6 L i n e 5 7 Line58 L i n e 5 9 L i n e 6 Line61 Line62 L i n e 6 3 L i n e 6 4

4

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SLIDE 12

OBS Line 3/MCS Line 12

N

5 km

Time (s)

2 6 8

175˚ 176˚ 177˚ 178˚ 179˚ 180˚

  • 43˚
  • 43
  • 42˚
  • 42
  • 41˚
  • 41
  • 40˚
  • 40
  • 39˚
  • 39
  • 38˚
  • 38
  • 37˚
  • 37
L i n e 1 Line3 Line4 Line5 Line6 Line7 Line8 L i n e 1 L i n e 1 1 Line12 L i n e 1 3 Line14 L i n e 1 5 Line16 Line17 Line18 L i n e 1 9 Line20 Line21 Line22 Line23 Line24 L i n e 2 5 Line26 Line27 Line28 Line29 L i n e 3 Line31 Line32 L i n e 3 3 L i n e 3 4 Line35 Line36 L i n e 3 7 L i n e 3 8 Line39 Line40 L i n e 4 1 L i n e 4 2 L i n e 4 3 L i n e 4 4 Line45 Line46 Line47 L i n e 4 8 L i n e 4 9 Line50 Line51 L i n e 5 2 Line53 Line54 L i n e 5 5 L i n e 5 6 Line57 Line58 Line59 L i n e 6 L i n e 6 1 Line62 L i n e 6 3 Line64

4

S

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SLIDE 13

5 km

Time (s)

2 6 8 4

OBS Line 3/MCS Line 12

N S 3D

175˚ 176˚ 177˚ 178˚ 179˚ 180˚

  • 43˚
  • 43
  • 42˚
  • 42
  • 41˚
  • 41
  • 40˚
  • 40
  • 39˚
  • 39
  • 38˚
  • 38
  • 37˚
  • 37
L i n e 1 Line3 Line4 Line5 Line6 Line7 Line8 L i n e 1 L i n e 1 1 Line12 L i n e 1 3 Line14 L i n e 1 5 Line16 Line17 Line18 L i n e 1 9 Line20 Line21 Line22 Line23 Line24 L i n e 2 5 Line26 Line27 Line28 Line29 L i n e 3 Line31 Line32 L i n e 3 3 L i n e 3 4 Line35 Line36 L i n e 3 7 L i n e 3 8 Line39 Line40 L i n e 4 1 L i n e 4 2 L i n e 4 3 L i n e 4 4 Line45 Line46 Line47 L i n e 4 8 L i n e 4 9 Line50 Line51 L i n e 5 2 Line53 Line54 L i n e 5 5 L i n e 5 6 Line57 Line58 Line59 L i n e 6 L i n e 6 1 Line62 L i n e 6 3 Line64
slide-14
SLIDE 14

NZ3D

Jan 6th – Feb 9th

178˚30' 178˚30' 179˚00' 179˚00' 179˚30' 179˚30'

  • 39˚00'
  • 39˚00'
  • 38˚30'
  • 38˚30'

L i n e 7 L i n e 8 Line10 Line11 Line22 Line23 Line24 Line25 Line26 L i n e 2 7 L i n e 2 8 Line29 Line30 Line31 L i n e 3 2 Line34 Line35 Line36 Line37 Line38 Line61 Line62 L i n e 6 3 Line64

01A 07A 05A 04A 06A 08A

NZ3D

15 x 60 km 3D Survey 96 – Japanese OBS 110 NZ+ 196 UK On land seismometers

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SLIDE 15

New Zealand Seismic Surveys With the R/V Lansgseth SHIRE SISIE

1) SHIRE

Two-ship OBS/2D MCS

  • StaJons on land
  • OBS deployments
  • Long streamer MCS

Nov 1st – Dec 7th

2) NZ3D

  • 3D mcs – 15 x 60 km
  • OBS and land

instruments Jan 6th – Feb 9th

3) SISIE

  • 2D OBS/MCS
  • UTIG OBS
  • Long streamer MCS

Feb 13th – Mar 12th

NZ3D

slide-16
SLIDE 16
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SLIDE 17
slide-18
SLIDE 18
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SLIDE 19