gravity and magnetic methods
DESCRIPTION
GPH 492/692 FINAL PROJECT. Gravity and Magnetic Methods. California Wash & Astor Pass, Nevada. Presented By: Josh Beckwith Alison Dorsey Janina Stampahar Paul Schwering. Gravity Data Acquisition. Survey control established with precision theodolite measurements - PowerPoint PPT PresentationTRANSCRIPT
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Gravity and Magnetic Methods
Presented By:
Josh Beckwith
Alison Dorsey
Janina Stampahar
Paul Schwering
GPH 492/692 FINAL PROJECT
California Wash & Astor Pass,Nevada
![Page 2: Gravity and Magnetic Methods](https://reader030.vdocuments.mx/reader030/viewer/2022020117/56813e7a550346895da89e6f/html5/thumbnails/2.jpg)
Gravity Data Acquisition• Survey control established with precision
theodolite measurements
• Gravity measured with precision L&R g-meter
![Page 3: Gravity and Magnetic Methods](https://reader030.vdocuments.mx/reader030/viewer/2022020117/56813e7a550346895da89e6f/html5/thumbnails/3.jpg)
Magnetic Data Acquisition• Utilized two Scintrex precision
magnetometers, one stationary base unit, one roving unit
• Survey control established with hand-held Garmin GPS unit
![Page 4: Gravity and Magnetic Methods](https://reader030.vdocuments.mx/reader030/viewer/2022020117/56813e7a550346895da89e6f/html5/thumbnails/4.jpg)
Survey AreasSurvey Areas
CaliforniaCaliforniaWashWash
Astor PassAstor Pass
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California Wash
Survey AreaTo LasVegas
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CALIFORNIA
WASH
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CALIFORNIA
WASH
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Gravity Profile
Easting (m)
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CALIFORNIA
WASH
65 65
S=0.0005
S=0.0002
![Page 10: Gravity and Magnetic Methods](https://reader030.vdocuments.mx/reader030/viewer/2022020117/56813e7a550346895da89e6f/html5/thumbnails/10.jpg)
Astor PassAstor Pass
‘
116°C
550 m
Tufa Tower
93°C
94°C 87°C
79°C
90°C
1 km
The Needles
Astor Pass
Tufa Tower
Aerial Views Face ~E
W E
N
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Regional Geology Map w/ Gravity Contours(from Dr. Jim Faulds)
Survey AreaSurvey Area
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Astor Pass Magnetic Data
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Astor Pass Magnetic Data
![Page 14: Gravity and Magnetic Methods](https://reader030.vdocuments.mx/reader030/viewer/2022020117/56813e7a550346895da89e6f/html5/thumbnails/14.jpg)
Astor Pass Gravity Data
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Astor Pass Gravity Data
Northing (m)
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ASTOR
PASS
70 7080 85
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QUESTIONS?