Geoffrey A. Phelps
Geology, Minerals, Energy, and Geophysics Science Center, Moffett Field, CA
Activity
2024
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A THEORETICAL GEOPHYSICAL ANALYSIS OF A SUBSURFACE CARBONATITE BODY AT MOUNTAIN PASS, CA
37 D1. Recent Advances in Geoscience and Geoscience Education (Posters)Friday, 17 May 20249:00 AM - 1:30 PMGrand Ballroom
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LITHIUM PEGMATITE MINERAL RESOURCE ASSESSMENT IN THE EASTERN UNITED STATES: PROJECT OVERVIEW AND PRELIMINARY GRADE AND TONNAGE MODEL
24 D2. Economic and Engineering Geology (Posters)Monday, 15 April 20241:30 PM - 5:30 PMGrand Ballroom
2022
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MINERALOGY ACROSS SCALES – MAPPING THE SUBSURFACE FOR ADVANCED MINERAL EXPLORATION AND ASSESSMENT
T187 Mathematics, Statistics, and Machine Learning in the Geosciences. How Can We Solve Today’s Challenges through Data Mining and Artificial Intelligence?Tuesday, 11 October 20221:30 PM - 5:30 PM502
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HIGH-RESOLUTION GEOPHYSICS FOR CHARACTERIZING STRUCTURE WITHIN THE IDAHO COBALT BELT, SALMON, IDAHO
T94 Critical Minerals and Framework Geology: The USGS Earth Mapping Resources Initiative (Earth MRI) and Related Activities (Posters)Monday, 10 October 20229:00 AM - 1:00 PMExhibit Hall F
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ALLUVIAL FAN SEDIMENTS INTRODUCE LOW FREQUENCY NOISE INTO GRAVITY ANOMALIES
T14 Using 3D Geological Models to Explore Geologic Processes, Assess Natural Resources and Hazards, and Meet Societal NeedsSunday, 9 October 20228:00 AM - 12:00 PM205
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MAJOR AND MINOR ELEMENT VARIATIONS IN CORE FROM THE IRON CREEK DEPOSIT IN THE IDAHO COBALT BELT: RAPID CONTINUOUS XRF DATA ACQUISITION FOR CRITICAL MINERAL EXPLORATION AND ASSESSMENT
T41 Critical Minerals and Framework Geology: The USGS Earth Mapping Resources Initiative (Earth MRI) and Related Activities IISunday, 9 October 20221:30 PM - 5:30 PM601
2020
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NO ONE ANSWER: CHALLENGES TO CREATING A GEOLOGICAL DIGITAL TWIN
T120 Three-Dimensional Geological Mapping to Support Societal Development IIWednesday, 28 October 202010:00 AM - 12:00 PMMeeting Rooms
2019
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AN UPDATED GEOPHYSICAL VIEW OF THE EASTERN CALIFORNIA SHEAR ZONE
Late Breaking Session: Ten-Million Years of Deformation along the Eastern California Shear Zone: Context and Characterization of the July 2019 Mw7.1 Ridgecrest EarthquakeSunday, 22 September 20191:45 PM - 5:30 PMNorth Ballroom 120D, North Building
2018
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ESTIMATING THE PROBABILITY OF ALTERNATIVE GEOLOGIC MODELS USING GRAVITY DATA WITH DISTANCE-BASED KERNELS
71 Seismic and Geophysical Perspectives: New Insights into the Structure of the Shallow Crust of the Rocky Mountains and Cordillera (Posters)Thursday, 17 May 20188:30 AM - 4:30 PMOutdoor Tents
2010
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GEOLOGY AND GEOPHYSICS ILLUMINATE LATE QUATERNARY OFFSET ALONG THE CADY FAULT WITHIN THE EASTERN CALIFORNIA SHEAR ZONE, SOUTHERN CALIFORNIA
32 Late Neogene Tectonics and Deformation along Active Faults East of and Including the San Andreas—San Jacinto Fault ZonesFriday, 28 May 20101:30 PM - 4:00 PMPlatinum 1
2009
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MAPPING LAYERS IN THE FRANCISCAN COMPLEX AND FAULTS OF THE SAN ANDREAS SYSTEM WITH NEW AEROMAGNETIC DATA IN THE NORTHERN COAST RANGES, CALIFORNIA
T101 Geologic Maps, Digital Geologic Maps, Geophysical Maps, and Derivatives from Geologic Maps (Posters)Monday, 19 October 20099:00 AM - 6:00 PMHall A
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CONSTRUCTING A 3D GEOLOGIC MAP
T7 Geological Mapping: Key to Successful Management of Water and Land Resources ISunday, 18 October 20098:00 AM - 12:00 PMB116
2008
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ASSESSING SURFACE RUPTURE POTENTIAL FOR THE NORTHERN MOJAVE DESERT: IMPLICATIONS OF NEW PATTERNS FOR QUATERNARY FAULTS AND THEIR EVOLUTION
13 Seismic Hazards Summit–Southern Nevada Region IThursday, 20 March 20088:00 AM - 11:50 AM
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AEROMAGNETIC SIGNATURES REVEAL STRATIGRAPHIC AND STRUCTURAL RELATIONS IN THE FRANCISCAN COMPLEX EAST OF THE SAN ANDREAS FAULT, NORTHERN CALIFORNIA
10 Structural Geology and Tectonics (Posters)Wednesday, 19 March 20081:30 PM - 5:30 PM
2005
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DEMONSTRATING THAT THE 1989 LOMA PRIETA EARTHQUAKE DAMAGE IN SOUTHWESTERN SANTA CLARA VALLEY IS NON-RANDOMLY ALIGNED AND IS POSITIVELY ASSOCIATED WITH MAPPED LINEAMENTS
39 A New Three-Dimensional Look at the Geology, Geophysics, and Hydrology of the Santa Clara Valley, California: A Showcase of Urban Earth Science (Posters)Sunday, 1 May 20059:00 AM - 5:00 PM
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NEW QUATERNARY GEOLOGY MAP OF FAULTS, NORTHERN MOJAVE DESERT, CALIFORNIA
41 Engineering and Environmental Geology (Posters)Sunday, 1 May 20059:00 AM - 5:00 PM
2003
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APPLICATIONS OF QUATERNARY GEOLOGY OF THE AMBOY 1:100,000-SCALE QUADRANGLE, CALIFORNIA
T32 Geological Mapping: Key to Successful Management of Water and Land Resources (Posters)Sunday, 2 November 20038:00 AM - 12:00 PM
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VARIED EVIDENCE FOR A BLIND THRUST BENEATH THE SOUTHWESTERN SANTA CLARA (SILICON) VALLEY, CALIFORNIA: A PRODUCT OF 3-DIMENSIONAL MAP ANALYSIS
T32 Geological Mapping: Key to Successful Management of Water and Land Resources (Posters)Sunday, 2 November 20038:00 AM - 12:00 PM
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GEOMORPHIC ANALYSIS OF TECTONIC PROVINCES BASED ON SURFICIAL GEOLOGIC MAP DATABASES, EASTERN MOJAVE DESERT
T32 Geological Mapping: Key to Successful Management of Water and Land Resources (Posters)Sunday, 2 November 20038:00 AM - 12:00 PM
2002
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SURFICIAL GEOLOGIC MAPPING OF THE MOJAVE NATIONAL PRESERVE, CALIFORNIA
T200 Geology in the National Parks I: Research, Mapping, Education, and InterpretationWednesday, 30 October 20028:00 AM - 12:00 PM
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BUILDING HYDROGEOLOGIC FRAMEWORK MODELS OF BASINS: CONTRIBUTIONS FROM GEOPHYSICALLY-BASED ‘ELEMENTS’
T175 Hydrogeologic Framework and Basin Hydrology of the Desert Southwestern United StatesTuesday, 29 October 20021:30 PM - 5:30 PM
2001
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GIS TOOLS FOR THE CONSTRUCTION OF 3D GEOLOGIC MODELS
11 3D Visualization and Geologic ModelingMonday, 9 April 20011:40 PM - 4:30 PM
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3-DIMENSIONAL GEOLOGIC MAP OF THE SANTA CLARA ("SILICON") VALLEY, CALIFORNIA
10 New Geologic Maps and 3D Images (Posters)Monday, 9 April 20018:00 AM - 12:00 PM
Date Unknown
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QUATERNARY GEOLOGY OF THE AMBOY 1:100,000-SCALE QUADRANGLE, CALIFORNIA
38 Deserts Over the Last 100,000 Years (Posters)