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-60
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-30
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03
00
06
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0
-60
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-40
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-20
00 0
20
00
40
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60
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PK
KPbc
PK
KP
df
Source
Station
∆ =90 - 115
-60
00
-30
00
03
00
06
00
0
-60
00
-40
00
-20
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20
00
40
00
60
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PK
KP
bc
P’P
’
Source
Station
df
90-115∆ =
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����110˚
110˚120˚
120˚130˚
130˚140˚
140˚150˚
150˚160˚
160˚170˚
170˚180˚
180˚190˚
190˚200˚
200˚210˚
210˚220˚
220˚230˚
230˚240˚
240˚250˚
250˚260˚
260˚
-40˚-40˚
-30˚-30˚
-20˚-20˚
-10˚-10˚
0˚0˚
10˚10˚
20˚20˚
30˚30˚
40˚40˚
50˚50˚
60˚60˚
70˚70˚
0100
200300
400500
600
depth [km]
YK
A
��� �!� ���+ �� 0*�� � 0$"� �
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Yellow
knife Array
Great Slave L
ake
10 km
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0.0
500.0
1000.0
1500.0
1: YKR1 Z
2: YKR2 Z
3: YKR3 Z
4: YKR4 Z
5: YKR5 Z
6: YKR6 Z
7: YKR7 Z
8: YKR8 Z
9: YKR9 Z
10: YKB1 Z
11: YKB2 Z
12: YKB3 Z
13: YKB4 Z
14: YKB6 Z
15: YKB7 Z
16: YKB8 Z
17: YKB9 Z
18: YKB0 Z
YK
R7
∆=
YK
B3
YK
R1
YK
R3
YK
R2
YK
R4
YK
R5
YK
R6
YK
B6
YK
R8
YK
R9
YK
B1
YK
B2
YK
B9
YK
B4
YK
B7
YK
B8
YK
B0
24-MA
Y-1990_20:09, h=
589km, 112
PK
iKP PP
PK
KP
P’P
’S
KP
100sPdiff
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� �� 500.0
1000.0
1500.0
S:-10.00
S:-9.60
S:-9.20
S:-8.80
S:-8.40
S:-8.00
S:-7.60
S:-7.20
S:-6.80
S:-6.40
S:-6.00
S:-5.60
S:-5.20
S:-4.80
S:-4.40
S:-4.00
S:-3.60
S:-3.20
S:-2.80
S:-2.40
S:-2.00
S:-1.60
S:-1.20
S:-0.80
S:-0.40
S:-0.00
S:0.40
S:0.80
S:1.20
S:1.60
S:2.00
S:2.40
S:2.80
S:3.20
S:3.60
S:4.00
S:4.40
S:4.80
S:5.20
S:5.60
S:6.00
S:6.40
S:6.80
S:7.20
S:7.60
S:8.00
S:8.40
S:8.80
S:9.20
S:9.60
S:10.00
. 24-MAY-1990_20:09 DEPTH=589KM DISTANCE=112.00DEG BAZ=298.41DEG MAG=6.4
P’P
’
PP
PK
KP
PK
iKP
P
slowness [s/deg]-10 -6-8 -4
100s
6 8 10-2 0 2 4
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1700
1750
1800
1850
1900
1700
1750
1800
1850
1900
7080
90100
110120
130140
7080
90100
110120
130140
f
c
a
b
d
PK
KP
traveltime [ s ]
distance [ deg ]
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time [sec]
slowness [sec/deg]
5
10
15
20
25
30
35
40
45
50
0 1 2 3 4 5 6 7
0102030405060
time [ s ]
slowness [ s / deg ]
6 10
20
0 842
-4
50
-8-10
010
3040
-2
PKK
P PKK
PPKK
P
bc
df
ab
-6
✛✛
✛
�
-
PK
KP
/P’P
’ YK
A dataset
-4.0-3.5
-3.0-2.5
-2.0-1.5
-1.0-0.5
0.00.5
1.01.5
2.02.5
PK
KP
df-bc residuals
-5s
�
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PKKP/P’P’ YKA dataset
-4.0 -3.5 -3.0 -2.5 -2.0 -1.5 -1.0 -0.5 0.0 0.5 1.0 1.5 2.0 2.5
PKKPdf-bc residuals
-5s
PKP polar paths (Creager)
4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.0 -0.5 -1.0 -1.5 -2.0 2.5
PKPbc-df residuals
5s
data from various studies, assembled by K. Creager:Creager (1992). McSweeney (1995), Creager (1999), McSweeney et al. (1997)Song (1996)
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-7 -6 -5 -4 -3 -2 -1 0 1 2
PKKPdf-PKKPbc differential travel time [s]
-70-60
-50-40
-30-20
-100
lon [ ° ]
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��' "���/ � � ���*�� � 0� �*� "�!� &� ���� �� �� � &� �/ � "�
&�
5150
5200
5250
5300
depth [km]
0500
10001500
20002500
30003500
40004500
50005500
60006500
70007500
8000
profile length [ km ]
1s
�!
-
-7
-6
-5
-4
-3
-2
-1
0
1
2
PK
KP
df-P
KK
Pbc
diff
. tr.
tim
e [s
]
23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47
ξ (polar path) [ ° ]
-7
-6
-5
-4
-3
-2
-1
0
1
2
PK
KP
df-P
KK
Pbc
diff
. tr.
tim
e [s
]
72 75 78 81 84 87 90 93 96 99 102 105 108 111 114 117
ξ (equat. path) [ ° ]
ξTraveltime anomaly versus
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&�
5150
5160
5170
5180
5190
5200
depth [km]
0500
10001500
20002500
30003500
40004500
50005500
60006500
70007500
8000
profile length [ km ]
1s
��
-
Traveltime anomaly versus ξ
-7
-6
-5
-4
-3
-2
-1
0
1
2
3
4
P’P
’ df-P
KK
Pbc
diff
. tr.
tim
e [s
]
23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49
ξ (polar path) [ ° ]
-7
-6
-5
-4
-3
-2
-1
0
1
2
3
4
P’P
’ df-P
KK
Pbc
diff
. tr.
tim
e [s
]
78 81 84 87 90 93 96 99 102 105 108 111 114 117 120 123
ξ (equat. path) [ ° ]
��
-
0
2
4
6
8
10C
ount
#
-8 -6 -4 -2 0 2
PKKP diff. tt [s]
0
2
4
6
8
10
12
Cou
nt #
-8 -6 -4 -2 0 2
P’P’ diff. tt [s]
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