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Institution
Collection
Format
Subject
875
Geology
659
Water quality
599
Groundwater
428
Geology, Stratigraphic
418
Mines and mineral resources
253
Geochemical prospecting
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244
Earthquakes
220
Groundwater Quality
219
Stream measurements
210
Hydrology
202
Geology, Structural
197
Geochemistry
196
Groundwater Pollution
176
Aquifers
175
Water-supply
161
Borings
159
Hydrogeology
159
Ore deposits
155
Water Pollution
145
Water table
141
Geomagnetism
138
Seismology
121
Streamflow
119
Faults (Geology)
119
Water resources development
117
Floods
117
Marine sediments
117
Petroleum Geology
116
Groundwater flow
113
Earthquake hazard analysis
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Author
8,070
Geological Survey (U.S.)
2,146
Geological Survey (U.S.),
128
United States. Environmental Protection Agency
124
U.S. Fish and Wildlife Service
115
United States. Bureau of Reclamation
114
United States. Department of Energy. Nevada Operations Office
more ...
114
United States. National Park Service
113
United States. Bureau of Land Management
105
United States. Army. Corps of Engineers
99
United States. Department of Energy
96
Afghanistan. Department of Geological Survey
95
United States. Agency for International Development
67
Afghan Geological Survey,
67
U.S. Task Force for Business and Stability Operations
66
Turner, Kenzie J.
63
Davis, Philip A. 1950-
62
Afghanistan. Idārah-i ʻUmūmī-i Jiyūdīzī va Kārtūgrāfī
62
Saudi Arabia. Deputy Ministry for Mineral Resources
57
National Water-Quality Assessment Program (U.S.)
55
Bullock, John H.
52
Clark, Perry S.
46
Fox, J. E. 1943-
44
Bohannon, Robert G.
43
Maryland Geological Survey
40
Higley, Debra K.
40
Southwest Florida Water Management District (Fla.)
39
Colton, Roger B. 1924-
39
Nakata, Jennifer S.
38
Adrian, Betty M.
38
Hawaiian Volcano Observatory
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Genre
1,662
Maps
190
Bibliographies
175
Databases
170
Conference papers and proceedings
128
Statistics
126
Topographic maps
more ...
119
Periodicals
75
Geological maps
73
Handbooks and manuals
73
Technical reports
61
Remote-sensing maps
46
Congresses
37
Catalogs
35
Serial publications
30
Academic theses
30
Bathymetric maps
27
Drawings
25
Guidebooks
19
Graphs
17
Geographic information systems
16
Software
15
Remote-sensing images
9
Atlases
8
Directories
7
Dictionaries
7
Fiction
7
Observations
5
Indexes
5
Pictures
4
Abstracts
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Literary Form
Era
83
Cretaceous
45
Quaternary
38
Cenozoic
31
Paleozoic
31
Tertiary
24
Holocene
more ...
23
Pliocene
20
Mesozoic
18
Miocene
16
Precambrian
14
Jurassic
13
Pleistocene
12
Permian
11
Proterozoic
9
Eocene
8
Mississippian
8
Paleocene
8
Paleogene
7
Neogene
7
Oligocene
7
Pennsylvanian
5
Ordovician
5
Triassic
4
21st century
4
Devonian
4
Silurian
3
Carboniferous
2
Archaean
2
Cambrian
2
Earthquake, 1987
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Region
1,067
California
567
Alaska
536
United States
509
Nevada
397
Colorado
293
Arizona
more ...
289
Washington (State)
275
Florida
249
Oregon
223
Afghanistan
203
New Mexico
194
Utah
184
Hawaii
174
Idaho
170
Montana
118
Wyoming
110
Texas
109
New York (State)
107
Virginia
103
North Carolina
100
Massachusetts
99
Pennsylvania
89
South Carolina
88
Georgia
86
West (U.S.)
83
Missouri
82
Kansas
80
Wisconsin
77
Louisiana
77
Minnesota
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Call Number
Year of Publication