V. J. Grauch
V. J. S. ("Tien") Grauch has been employed by the U.S. Geological Survey in Denver, Colorado since 1977, where she is currently a senior research geophysicist with the Geology, Geophysics, and Geochemistry Science Center.
Her research interests include application of high-resolution aeromagnetic data to map intrasedimentary faults, integration of geologic and geophysical data to develop 3D geologic and hydrogeologic frameworks, the relation between magnetic sources and geology, interpretation of aeromagnetic data over rugged magnetic terrain, and development of new interpretation methods.
Education and Certifications
PhD (1986) in geophysics from Colorado School of Mines
BA (1975) in geology from Carleton College
Science and Products
Filter Total Items: 97
Mineral resources of the Bad Lands Wilderness Study Area, Elko County, Nevada
No abstract available.
Authors
Bruce R. Johnson, D.H. Richter, V. J. S. Grauch, T. J. Kreidler
Mineral resources of the American Flats Wilderness Study Area, Ouray and Hinsdale counties, Colorado
No abstract available.
Authors
Ken Hon, V. J. S. Grauch, D. J. Bove, B.J. Hannigan
Summary of natural remanent magnetization, magnetic susceptibility, and density measurements from the Lake City caldera area, San Juan Mountains, Colorado
No abstract available.
Authors
V. J. Grauch, Mark R. Hudson
Limitations of determining density or magnetic boundaries from the horizontal gradient of gravity or pseudogravity data
The horizontal-gradient method has been used since 1982 to locate density or magnetic boundaries from gravity data (Cordell, 1979) or pseudogravity data (Cordell and Grauch, 1985). The method is based on the principle that a near-vertical, fault-like boundary produces a gravity anomaly whose horizontal gradient is largest directly over the top edge of the boundary. Magnetic data can be transformed
Authors
V. J. S. Grauch, L. Cordell
Geology and mineral deposits of the region surrounding the American Flats Wilderness Study Area, western San Juan Mountains, Colorado
No abstract available.
Authors
Ken Hon, D. J. Bove, V. J. Grauch
VARMAG; a Fortran program to implement the variable-magnetization terrain-correction method for aeromagnetic data
No abstract available.
Authors
V. J. Grauch
Mineral resources of the Palen-McCoy Wilderness Study Area, Riverside County, California
No abstract available.
Authors
Paul Stone, T. D. Light, V. J. S. Grauch, W. E. Yeend, R.A. Schreiner
Gravity survey data and a Bouguer gravity anomaly map of the Lake City Caldera area, Hinsdale County, Colorado
No abstract available.
Authors
V. J. Grauch, D. L. Campbell
Mineral resource potential of the Eagle Mountains Wilderness Study Area (CDCA-334), Riverside County, California: Summary report
No abstract available.
Authors
R. E. Powell, C. L. Whittington, V. J. S. Grauch, R. A. McColly
TAYLOR; a Fortran program using Taylor series expansion for level-surface continuation of potential-field data
No abstract available.
Authors
V. J. Grauch
Aeromagnetic map of the Eagle Mountains area, Riverside County, California
No abstract available.
Authors
V. J. Grauch
Magnetic models of crystalline terrane; accounting for the effect of topography
Igneous rocks commonly have large magnetic susceptibilities so that high topographic relief in crystalline terrane can produce significant anomalies in aeromagnetic surveys. Topographic anomalies are particularly significant in relatively undeformed volcanic terrane because young volcanic rocks generally have large natural remanent magnetizations as well as large susceptibilities. These anomalies
Authors
Richard J. Blakely, V. J. Grauch
Science and Products
Filter Total Items: 97
Mineral resources of the Bad Lands Wilderness Study Area, Elko County, Nevada
No abstract available.
Authors
Bruce R. Johnson, D.H. Richter, V. J. S. Grauch, T. J. Kreidler
Mineral resources of the American Flats Wilderness Study Area, Ouray and Hinsdale counties, Colorado
No abstract available.
Authors
Ken Hon, V. J. S. Grauch, D. J. Bove, B.J. Hannigan
Summary of natural remanent magnetization, magnetic susceptibility, and density measurements from the Lake City caldera area, San Juan Mountains, Colorado
No abstract available.
Authors
V. J. Grauch, Mark R. Hudson
Limitations of determining density or magnetic boundaries from the horizontal gradient of gravity or pseudogravity data
The horizontal-gradient method has been used since 1982 to locate density or magnetic boundaries from gravity data (Cordell, 1979) or pseudogravity data (Cordell and Grauch, 1985). The method is based on the principle that a near-vertical, fault-like boundary produces a gravity anomaly whose horizontal gradient is largest directly over the top edge of the boundary. Magnetic data can be transformed
Authors
V. J. S. Grauch, L. Cordell
Geology and mineral deposits of the region surrounding the American Flats Wilderness Study Area, western San Juan Mountains, Colorado
No abstract available.
Authors
Ken Hon, D. J. Bove, V. J. Grauch
VARMAG; a Fortran program to implement the variable-magnetization terrain-correction method for aeromagnetic data
No abstract available.
Authors
V. J. Grauch
Mineral resources of the Palen-McCoy Wilderness Study Area, Riverside County, California
No abstract available.
Authors
Paul Stone, T. D. Light, V. J. S. Grauch, W. E. Yeend, R.A. Schreiner
Gravity survey data and a Bouguer gravity anomaly map of the Lake City Caldera area, Hinsdale County, Colorado
No abstract available.
Authors
V. J. Grauch, D. L. Campbell
Mineral resource potential of the Eagle Mountains Wilderness Study Area (CDCA-334), Riverside County, California: Summary report
No abstract available.
Authors
R. E. Powell, C. L. Whittington, V. J. S. Grauch, R. A. McColly
TAYLOR; a Fortran program using Taylor series expansion for level-surface continuation of potential-field data
No abstract available.
Authors
V. J. Grauch
Aeromagnetic map of the Eagle Mountains area, Riverside County, California
No abstract available.
Authors
V. J. Grauch
Magnetic models of crystalline terrane; accounting for the effect of topography
Igneous rocks commonly have large magnetic susceptibilities so that high topographic relief in crystalline terrane can produce significant anomalies in aeromagnetic surveys. Topographic anomalies are particularly significant in relatively undeformed volcanic terrane because young volcanic rocks generally have large natural remanent magnetizations as well as large susceptibilities. These anomalies
Authors
Richard J. Blakely, V. J. Grauch