GPH 492/692 Field Work 2010
Gravity
Ross Whitmore
Janice Kukuk
Rob Ghiglieri
Draft
Introduction:
Two gravity surveys were set up in east Sparks and east Reno. Approximately 17
measurements were taken in east Sparks along Prater Way and approximately 38 measurements
were taken in east Reno through the Hidden Valley suburb. Currently only the gravity survey
data along Prater Way has been processed. However, there is missing elevation data for Hidden
Valley that will soon be collected and processed.
Methods:
Measurements were taken with a LaCoste and Romberg gravity meter. At the beginning
and end of each day, gravity measurements were taken at the base station at the University of
Nevada, Reno to calculate for drift throughout the day. The known absolute gravity for the
University of Nevada, Reno base station is 979.6746 gals. A field base station was also set up to
correct for drift. The field base station was re-measured every 2-3 hours. The gravity
measurements were not measured at regular distance intervals due to time constraints. In the
basin the intervals were 300-400 m long and as the interface between the basin and bedrock was
approached the intervals were shorten to 100-200 m. Two gravity measurements were taken at
each station to ensure accuracy. Terrain corrections were made at each gravity station. The
corrections were made for the Hammer B (6.56’-54.6’) and C (54.6’-175’) rings at each station
using estimated eye height elevation. Each gravity station was surveyed in by the survey team to
Gravity 1
obtain accurate vertical and horizontal positions. To make the free-air correction the elevation of
each gravity station must be known to within 30 cm for an accuracy of 0.01 mGal.
The survey data was reduced to the complete Bouguer anomaly (CBA). First the data was
reduced to the simple Bouguer anomaly (SBA). The SBA was calculated by first correcting for
drift of the gravity meter against the field base stations. The field corrected data was then
corrected for drift against the University of Nevada, Reno base station. The free-air and Bouguer
slab elevation was calculated using the equation:
dg= h (0.3083 – 0.04192 rho)
Where dg is the SBA in mGal, h is the elevation in meters, and rho is the density as 2.6 g/cc. The
density was obtained from analysis of rock samples taken from the bedrock. The CBA was then
determined by adding the elevation and terrain correction to the SBA value.
Using Java Grav2D, the calculated gravity data was inverted and after the 11th iteration
the inversion was completed. From the 11th iteration the Bouguer slab was plotted against the
distance of the gravity line giving an initial basin profile. More detailed information of the basin
profile will be understood once further processing using GYM-SYS is completed.
Results:
The basin profile obtained from the Relative SBA confirmed the initial hypothesis that
the basin is deeper to the west and shallower to the east. The deepest part of the basin is
approximately 500m as seen in the plot of the SBA plotted against the distance from the origin.
There is an anomaly in the plot that occurs at a depth of 400 m and at a distance of 1700 m. With
further processing this anomaly should be resolved. The data tables and map localities of both
surveys have been attached.
Gravity 2
Prater Data:
Station
#
SEM
AM
PB
P1
P2
P3
P4
P5
P6
P7
P8
P9
P10
P11
P12
Time
min
Inst.
read
g,mGal
Terrain
Correction
Elevation
field
drift_corr.
gD, mGal
SEM
correction
Height,
m
SBA,
mGal
dg, mGal
Relativ
e SBA,
mGal
Sed
Thickness,
m
530
3183.1
3255.04
3255.04
3255.04
-1339.26
-266.9252
530
3183.12
3255.06
3255.06
3255.06
-1339.26
-266.9252
794
3191.92
3264.06
0
1339.26
3264.06
3264.19
0
0
3264.19
-11.02
525.84
802
3191.9
3264.04
0
1339.26
3264.04
3264.17
0
0
3264.17
-11.04
526.63
794
3191.92
3264.06
0
1339.26
3264.06
3264.19
0.39
0.0777301
3264.27
-10.94
522.13
802
3191.9
3264.04
0
1339.26
3264.04
3264.18
0.39
0.0777301
3264.26
-10.95
522.62
813
3193.09
3265.25
0.0053
1339.65
3265.27
3265.41
1.07
0.2132596
3265.63
-9.58
457.17
815
3193.1
3265.26
0.0053
1339.65
3265.28
3265.42
1.07
0.2132596
3265.64
-9.57
456.56
826
3194.1
3266.29
0
1340.33
3266.31
3266.46
2.01
0.4006091
3266.86
-8.35
398.42
831
3194.13
3266.32
0
1340.33
3266.35
3266.50
2.01
0.4006091
3266.90
-8.31
396.65
841
3194.45
3266.64
0
1341.27
3266.68
3266.84
5.25
1.046367
3267.88
-7.33
349.61
844
3194.48
3266.68
0
1341.27
3266.71
3266.87
5.25
1.046367
3267.92
-7.29
347.97
854
3194.95
3267.16
0.01463
1344.51
3267.20
3267.36
13.96
2.7823397
3270.16
-5.05
240.90
857
3194.96
3267.17
0.01463
1344.51
3267.22
3267.38
13.96
2.7823397
3270.17
-5.04
240.23
866
3193.77
3265.95
0.00667
1353.22
3266.01
3266.17
17.03
3.3942152
3269.57
-5.64
268.93
868
3193.76
3265.94
0.00667
1353.22
3266.00
3266.16
17.03
3.3942152
3269.56
-5.64
269.29
876
3193.75
3265.93
0.044
1356.29
3265.99
3266.16
38.05
7.5836694
3273.79
-1.42
67.63
878
3193.76
3265.94
0.044
1356.29
3266.01
3266.18
38.05
7.5836694
3273.80
-1.40
67.02
885
3190.29
3262.39
0.0053
1377.31
3262.46
3262.64
44.91
8.9509223
3271.59
-3.62
172.51
887
3190.29
3262.39
0.0053
1377.31
3262.46
3262.64
44.91
8.9509223
3271.60
-3.61
172.38
892
3189.05
3261.12
0.1653
1384.17
3261.20
3261.38
51.29
10.222507
3271.77
-3.44
164.28
893
3189.05
3261.12
0.1653
1384.17
3261.20
3261.38
51.29
10.222507
3271.77
-3.44
164.21
898
3187.61
3259.65
0
1390.55
3259.73
3259.91
68.65
13.682494
3273.60
-1.61
76.97
901
3187.63
3259.67
0
1390.55
3259.75
3259.94
68.65
13.682494
3273.62
-1.59
75.82
917
3184.12
3256.08
0.09596
1407.91
3256.18
3256.37
93.99
18.732959
3275.20
-0.01
0.55
918
3184.13
3256.09
0.09596
1407.91
3256.19
3256.38
93.99
18.732959
3275.21
0.00
0.00
926
3178.81
3250.65
0.06793
1433.25
3250.75
3250.95
93.99
18.732959
3269.75
-5.46
260.40
1433.25
927
3178.82
3250.66
0.06793
3250.77
3250.96
93.99
18.732959
3269.76
-5.45
259.85
P13
~#16
from
old
953
3194.35
3266.54
0
3266.67
3266.88
-1339.26
-266.9252
2999.95
-275.26
13132.56
954
3194.34
3266.53
0
3266.66
3266.87
-1339.26
-266.9252
2999.94
-275.27
13132.98
P14
~#12
from
old
968
3191.15
3263.27
0
3263.41
3263.62
-1339.26
-266.9252
2996.70
-278.51
13287.76
971
3191.16
3263.28
0
3263.42
3263.64
-1339.26
-266.9252
2996.71
-278.50
13287.09
P15
~#18
from
old
985
3190.3
3262.40
0
3262.55
3262.78
-1339.26
-266.9252
2995.85
-279.36
13328.19
PB
SEM PM
987
3190.31
3262.41
0
3262.56
3262.79
-1339.26
-266.9252
2995.86
-279.35
13327.58
1001
3191.75
3263.88
0
3264.05
3264.28
-1339.26
-266.9252
2997.35
-277.86
13256.47
1002
3191.76
3263.89
3264.06
3264.29
-1339.26
-266.9252
2997.37
-277.84
13255.92
1025
3182.85
3254.78
3254.78
3255.03
-1339.26
-266.9252
2988.10
-287.11
13697.89
1027
3182.86
3254.79
3254.79
3255.04
-1339.26
-266.9252
2988.11
-287.10
13697.36
Gravity 3
Gravity 4
Gravity 5
Hidden Valley Data:
HVB
Time
10:25
10:30
11:00
day
0.43
0.44
0.46
minute
s
625.00
630.00
660.00
HVE1
11:13
0.47
673.00
HVE2
11:36
0.48
696.00
HVE3
12:04
0.50
724.00
HVE4
12:17
12:21
12:34
12:37
12:53
12:55
13:09
13:20
13:33
13:37
13:54
14:04
15:32
0.51
0.51
0.52
0.53
0.54
0.54
0.55
0.56
0.56
0.57
0.58
0.59
0.65
737.00
741.00
754.00
757.00
773.00
775.00
789.00
800.00
813.00
817.00
834.00
844.00
932.00
15:58
16:00
16:10
16:13
16:33
16:37
0.67
0.67
0.67
0.68
0.69
0.69
16:54
0.70
16:55
0.70
958.00
960.00
970.00
973.00
993.00
997.00
1014.0
0
1015.0
0
Station #
SEM Morn
HVE5
HVE6
HVE7
HVE8
HVE9
HVB
HV1
HV2
HV3
HV4
Dist,
m
Field
DriftCorrecte
d gD,
mGal
3253.82
3253.82
3253.05
3253.07
3251.75
3252.55
3248.42
3249.23
3245.71
3246.52
3241.04
3241.05
3236.14
3236.14
3229.26
3229.26
3224.44
3224.41
3218.08
3218.05
3210.22
3210.24
3253.05
3254.12
3252.59
3252.59
3252.18
3252.19
3252.61
3252.60
SEM
corrected drift
3253.82
3253.82
3252.96
3254.68
3251.63
3254.15
3248.24
3250.84
3245.45
3248.13
3240.75
3240.75
3235.81
3235.80
3228.88
3228.87
3224.02
3223.96
3217.59
3217.56
3209.68
3209.67
3252.26
3255.73
3251.73
3251.73
3251.29
3251.30
3251.66
3251.64
Instr.
Reading
3181.91
3181.91
3181.16
3181.18
3179.9
3179.91
3176.67
3176.67
3174.05
3174.02
3169.495
3169.51
3164.73
3164.73
3158.02
3158.023
3153.33
3153.31
3147.13
3147.11
3139.47
3139.5
3181.47
3181.45
3181.01
3181.015
3180.61
3180.62
3181.02
3181.01
g, mGal
3253.82
3253.82
3253.05
3253.07
3251.77
3251.78
3248.46
3248.46
3245.78
3245.75
3241.13
3241.14
3236.25
3236.25
3229.39
3229.39
3224.60
3224.57
3218.26
3218.23
3210.42
3210.45
3253.37
3253.35
3252.90
3252.91
3252.49
3252.50
3252.91
3252.90
Terrain
Corr
0.0000
0.0000
0.0295
0.0295
0.0252
0.0252
0.2376
0.2376
0.1907
0.1907
0.1927
0.1927
0.2200
0.2200
0.1439
0.1439
0.1601
0.1601
0.2457
0.2457
0.2696
0.2696
0.0295
0.0295
0.0000
0.0000
0.0266
0.0266
0.0027
0.0027
3182.33
3254.25
0.0266
3253.95
3182.34
3254.26
0.0266
3253.96
Elev. , m
h, m
dg,
mGal
SBA, mGal
Relative
SBA, mGal
Sed
Thicknes,
m
-2.76
131.90
-1.05
49.87
-4.11
195.89
-1.58
75.34
-7.28
347.45
-4.68
223.28
-10.11
482.50
-7.44
354.80
-14.82
706.96
-14.82
706.94
-19.73
941.17
-19.74
941.70
-26.74
1275.55
-26.74
1275.76
-31.58
1506.45
-31.64
1509.39
-37.92
1809.14
-37.95
1810.83
-45.81
2185.46
-45.81
2185.78
-3.46
165.30
0.00
0.00
-4.03
192.07
-4.03
192.05
-4.44
211.67
-4.43
211.52
-4.10
195.39
Gravity196.33
6
-4.12
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
3252.99
3254.71
3251.65
3254.18
3248.48
3251.08
3245.64
3248.32
3240.94
3240.94
3236.03
3236.02
3229.02
3229.02
3224.18
3224.12
3217.84
3217.80
3209.95
3209.94
3252.29
3255.76
3251.73
3251.73
3251.32
3251.32
3251.66
3251.64
3252.95
0.0
0.00
3252.98
-2.78
132.70
3252.96
0.0
0.00
3252.98
-2.77
132.33
17:07
0.71
17:08
0.71
17:44
0.74
17:46
0.74
1027.0
0
1028.0
0
1064.0
0
1066.0
0
8:43
0.36
8:45
3181.45
3253.35
0.0295
3253.05
3252.02
0.0
0.00
3252.05
-3.71
176.96
3181.46
3253.36
0.0295
3253.06
3252.03
0.0
0.00
3252.06
-3.70
176.59
3183.01
3254.95
0.0000
3254.95
3253.82
0.0
0.00
3253.82
-1.94
92.65
3183.02
3254.96
0.0000
3254.96
3253.82
-1.94
92.41
3183.06
3255.00
0.0000
3255.00
3255.00
2991.37
-264.38
12613.72
0.36
525.00
3183.06
3255.00
0.0000
3255.00
3255.00
2991.37
-264.38
12613.72
9:45
0.41
585.00
3181.54
3253.44
0.0295
3253.44
3253.45
2989.85
-271.57
12956.82
HV4???
9:54
10:30
10:32
0.41
0.44
0.44
594.00
630.00
632.00
3181.55
3182.33
3182.35
3253.45
3254.25
3254.27
0.0295
0.0266
0.0266
3253.45
3254.27
3254.29
3253.46
3254.28
3254.30
0.00
263.6
2
263.6
2
263.6
2
263.6
2
8.62
8.62
3253.82
523.00
0.0
1342.
45
1342.
45
1342.
45
1342.
45
43.25
43.25
2989.87
3262.93
3262.95
-271.57
-273.09
-273.08
12956.82
13029.34
13028.82
HV5
10:46
0.45
646.00
3182.94
3254.87
0.0293
3254.90
3254.91
39.70
7.91
3262.86
-0.02
1.03
HV6
10:48
11:03
11:05
0.45
0.46
0.46
648.00
663.00
665.00
3182.95
3183.17
3183.17
3254.88
3255.11
3255.11
0.0293
0.0093
0.0093
3254.92
3255.15
3255.15
3254.93
3255.16
3255.16
39.70
36.93
36.93
7.91
7.36
7.36
3262.87
3262.53
3262.53
0.00
-0.09
-0.08
0.00
4.48
3.94
HV7
11:23
0.47
683.00
3183.82
3255.77
0.0306
3255.82
3255.83
33.63
6.70
3262.57
-0.42
20.11
HV8
11:25
11:35
11:38
0.48
0.48
0.48
685.00
695.00
698.00
3183.8
3184.58
3184.59
3255.75
3256.55
3256.56
0.0306
0.0040
0.0040
3255.80
3256.61
3256.62
3255.82
3256.62
3256.63
33.63
28.62
28.62
6.70
5.70
5.70
3262.55
3262.33
3262.34
-0.42
-0.38
-0.40
20.06
18.16
19.08
HV9
11:46
0.49
706.00
3185.32
3257.31
0.0000
3257.37
3257.38
24.51
4.89
3262.27
-0.62
29.71
11:48
0.49
708.00
3185.33
3257.32
0.0000
3257.38
3257.39
-0.61
29.15
12:53
0.54
773.00
3181.45
3253.35
0.0295
3253.44
3253.46
2985.93
-0.68
32.56
HV10
13:02
13:36
13:42
0.54
0.57
0.57
782.00
816.00
822.00
3181.448
3187.64
3187.65
3253.35
3259.68
3259.69
0.0295
0.0186
0.0186
3253.45
3259.75
3259.76
3253.47
3259.77
3259.78
4.89
267.5
6
267.5
6
2.27
2.27
3262.28
HVB
24.51
1342.
45
1342.
45
11.37
11.37
2985.93
3262.06
3262.07
-0.67
-277.02
-277.02
32.02
13216.57
13216.43
HVB
SEM PM
SEM AM
HVB
1385.71
1385.71
1382.15
3
1382.15
3
1379.38
1379.38
1376.08
7
1376.08
7
1371.07
1371.07
1366.96
5
1366.96
5
1353.83
1353.83
Gravity 7
1351.18
5
1351.18
5
1347.60
1347.60
1345.8
1345.8
1344.61
1344.61
1343.15
8
1343.15
8
1342.59
1342.59
1342.45
4
1342.45
4
3260.04
3260.06
8.73
1.74
3261.85
-0.89
42.51
3260.02
3260.83
3260.79
3261.16
3261.17
3261.37
3261.36
3260.05
3260.85
3260.82
3261.18
3261.19
3261.40
3261.38
8.73
5.14
5.14
3.35
3.35
2.16
2.16
1.74
1.02
1.02
0.67
0.67
0.43
0.43
3261.84
3261.90
3261.87
3261.87
3261.88
3261.83
3261.82
-0.88
-1.10
-1.11
-1.05
-1.08
-1.08
-1.07
42.14
52.38
52.95
50.21
51.72
51.68
51.23
3261.66
3261.68
0.70
0.14
3261.83
-1.12
53.49
3261.65
3262.03
3262.02
3261.68
3262.06
3262.05
0.70
0.13
0.13
0.14
0.03
0.03
3261.83
3262.09
3262.08
-1.13
-1.12
-1.12
54.04
53.36
53.40
3262.31
3262.34
0.00
0.00
3262.51
-0.86
41.07
3262.34
3262.37
-0.87
41.58
3253.44
3253.47
2985.94
-0.44
21.16
3253.44
0.0295
3253.45
3253.48
2985.95
-0.41
19.76
3183.02
3254.96
0.0000
3254.96
3255.00
2987.44
-277.01
13215.99
1041.0
0
3183.02
3254.96
0.0000
3254.96
3255.00
2987.44
-277.00
13215.52
0.37
530.00
3183.1
3255.04
0.0000
3255.04
3255.04
2987.48
-274.88
13114.36
9:15
0.39
555.00
HVW1
9:15
0.39
555.00
3183.12
3187.88
3187.86
3187.88
3187.86
3255.06
3259.93
3259.91
3259.93
3259.91
0.0000
0.0000
0.0000
0.0000
0.0000
3255.06
3259.93
3259.91
3259.93
3259.55
3255.06
3259.94
3259.64
3259.94
3259.28
0.00
267.5
6
267.5
6
267.5
6
267.5
6
267.5
6
267.5
6
-0.57
-0.57
-0.57
-0.57
3262.54
0.0295
0.00
1342.
45
1342.
45
1342.
45
1342.
45
1342.
45
1342.
45
-2.88
-2.88
-2.88
-2.88
2987.50
3259.37
3259.07
3259.37
3258.71
-274.88
-274.84
-274.82
-2.94
-3.24
13114.34
13112.39
13111.42
140.42
154.59
HVW2
9:25
0.39
565.00
3188.63
3260.69
0.0000
3260.70
3260.72
-2.93
-0.58
3260.14
-2.94
140.42
HV11
13:56
0.58
836.00
3187.93
3259.98
0.0506
14:00
14:10
14:12
14:21
14:23
14:31
14:34
0.58
0.59
0.59
0.60
0.60
0.60
0.61
840.00
850.00
852.00
861.00
863.00
871.00
874.00
3187.92
3188.71
3188.68
3189.04
3189.05
3189.25
3189.24
3259.97
3260.77
3260.74
3261.11
3261.12
3261.33
3261.32
0.0506
0.0200
0.0200
0.0146
0.0146
0.0027
0.0027
HV15
14:48
0.62
888.00
3189.54
3261.62
0.0067
HV16
14:50
14:57
14:58
0.62
0.62
0.62
890.00
897.00
898.00
3189.54
3189.91
3189.9
3261.62
3262.00
3261.99
0.0067
0.0040
0.0040
HV17
15:07
0.63
907.00
3190.19
3262.29
0.1657
15:10
0.63
910.00
3190.22
3262.32
0.1657
15:29
0.65
929.00
3181.53
3253.43
15:30
0.65
930.00
3181.54
17:17
0.72
1037.0
0
17:21
0.72
SEM AM
8:50
HVB2
HV12
HV13
HV14
HVB
SEM PM
1339.58
1339.58
1339.58
1339.58
1339.52
9
Gravity 8
300M away1
HVW3
300M away2
Pond~1mD
1339.52
9
1339.45
3260.43
3261.50
3260.45
3261.53
-2.93
-3.01
-0.58
-0.60
3259.86
3260.97
-3.60
-2.17
171.78
103.74
3261.52
3261.54
-3.01
-0.60
3260.98
-2.45
116.75
3261.38
3261.41
-1.84
-0.37
3261.09
-1.35
64.25
3261.42
3261.46
-1.84
-0.37
3261.14
-1.33
63.65
3261.84
3261.88
-1.98
-0.40
3261.59
-1.22
58.21
3261.84
3261.89
-1.98
-0.40
3261.59
-1.17
55.82
3257.92
3257.97
17.54
3.50
3261.59
-0.72
34.59
3257.98
3258.04
17.54
3.50
3261.66
-0.72
34.37
3252.93
3252.99
42.31
8.43
3261.47
-0.72
34.22
3252.93
3253.00
42.31
8.43
3261.47
-0.65
31.02
3254.15
3254.23
37.27
7.43
3261.87
-0.84
40.04
3254.16
3254.23
37.27
7.43
3261.88
-0.84
39.98
3257.31
3257.39
22.94
4.57
3262.31
-0.44
20.97
3257.31
3257.40
-0.44
20.80
3262.13
3262.23
2994.70
0.00
0.16
3262.01
0.0372
3262.12
3262.21
2994.69
0.00
0.00
3187.65
3259.69
0.0000
3259.81
3259.91
2992.35
-267.61
12767.63
735.00
744.00
746.00
3187.65
3187.76
3187.77
3259.69
3259.80
3259.81
0.0000
0.0000
0.0000
3259.81
3259.93
3259.94
3259.91
3260.04
3260.05
2992.35
3259.46
3259.48
-267.62
-269.96
-269.96
12768.25
12879.90
12879.79
1022.4
0
3182.85
3254.78
3254.78
3255.03
4.57
267.5
6
267.5
6
267.5
6
267.5
6
-0.57
-0.57
267.5
6
3262.31
0.0372
22.94
1342.
45
1342.
45
1342.
45
1342.
45
-2.88
-2.88
1342.
45
2987.47
-2.85
135.92
9:28
9:35
0.39
0.40
568.00
575.00
3188.36
3189.41
3260.42
3261.49
0.0000
0.0346
9:37
0.40
577.00
3189.42
3261.50
0.0346
HVW4
200Maway3
9:44
0.41
584.00
3189.28
3261.36
0.0507
9:52
0.41
592.00
3189.32
3261.40
0.0507
HVW5
200M away4
10:05
0.42
605.00
3189.72
3261.81
0.1012
10:09
0.42
609.00
3189.72
3261.81
0.1012
HVW6
100M away5
10:20
0.43
620.00
3185.88
3257.88
0.1266
10:34
0.44
634.00
3185.93
3257.93
0.1266
HVW7
100M away6
10:58
0.46
658.00
3180.97
3252.86
0.0452
10:59
0.46
659.00
3180.97
3252.86
0.0452
HVW8
100M away7
11:14
0.47
674.00
3182.16
3254.08
0.2139
11:17
0.47
677.00
3182.16
3254.08
0.2139
HVW9
100M away8
11:27
0.48
687.00
3185.24
3257.23
0.3429
11:30
0.48
690.00
3185.24
3257.23
0.3429
HVW10
11:55
0.50
715.00
3189.935
3262.03
~#11 from
prev
11:57
0.50
717.00
3189.92
HVW11 ~#8
from prev
12:13
0.51
733.00
in med of st
HVB2
12:15
12:24
12:26
0.51
0.52
0.52
SEM PM
17:05
0.71
1339.45
1340.61
9
1340.61
9
1340.47
1
1340.47
1
1359.99
8
1359.99
8
1384.76
8
1384.76
8
1379.72
9
1379.72
9
1365.39
2
1365.39
2
1339.58
1339.58
Gravity 9
17:07
0.71
1022.4
0
3182.86
3254.79
3254.79
3255.04
1342.
45
267.5
6
2987.48
-2.84
135.33
Gravity 10
Gravity 11