University, Subject, Country, Region, World

Northern Arizona University Scientists Engineering & Technology / Earth Sciences Rankings 2024

The "AD Scientific Index" analyses the academic work of scientists using the H-index, i10 index and number of citations, and provides results that can be used to evaluate the productivity and efficiency of individuals and institutions. In addition to ranking according to "total H-index" for individuals and institutions, you can also see the ranking and analyses according to "last 6 years H-index", "total i10 Productivity index", "last 6 years i10 Productivity index", "total citations" and "last 6 years citations" only in "AD Scientific Index". See also: Subject Rankings and University Subject Rankings Click here for individual or institutional registration.

Total 36 scientist, 1 country, 1 institution
Scott Goetz
Earth observation
Terrestrial Ecosystems
Biodiversity Habitat
Remote Sensing
Canopy Structure
H-Index Rankings
University / Institution:
# 3
Country:
# 4,253
Region:
# 4,635
World:
# 9,244
H-Index
Total:
97
Last 6 Year:
67
Last 6 Year/Total:
0.691
i10 Index
Total:
215
Last 6 Year:
180
Last 6 Year/Total:
0.837
Citation
Total:
47,111
Last 6 Year:
24,290
Last 6 Year/Total:
0.516
H-Index Rankings
University / Institution:
# 52
Country:
# 48,507
Region:
# 54,814
World:
# 140,607
H-Index
Total:
39
Last 6 Year:
20
Last 6 Year/Total:
0.513
i10 Index
Total:
53
Last 6 Year:
37
Last 6 Year/Total:
0.698
Citation
Total:
5,773
Last 6 Year:
1,365
Last 6 Year/Total:
0.236
H-Index Rankings
University / Institution:
# 53
Country:
# 48,699
Region:
# 55,027
World:
# 141,143
H-Index
Total:
39
Last 6 Year:
17
Last 6 Year/Total:
0.436
i10 Index
Total:
54
Last 6 Year:
26
Last 6 Year/Total:
0.481
Citation
Total:
8,728
Last 6 Year:
1,275
Last 6 Year/Total:
0.146
H-Index Rankings
University / Institution:
# 62
Country:
# 54,815
Region:
# 61,960
World:
# 162,950
H-Index
Total:
36
Last 6 Year:
26
Last 6 Year/Total:
0.722
i10 Index
Total:
60
Last 6 Year:
49
Last 6 Year/Total:
0.817
Citation
Total:
3,549
Last 6 Year:
1,567
Last 6 Year/Total:
0.442
H-Index Rankings
University / Institution:
# 69
Country:
# 59,450
Region:
# 67,235
World:
# 179,570
H-Index
Total:
34
Last 6 Year:
30
Last 6 Year/Total:
0.882
i10 Index
Total:
51
Last 6 Year:
46
Last 6 Year/Total:
0.902
Citation
Total:
8,274
Last 6 Year:
4,542
Last 6 Year/Total:
0.549
H-Index Rankings
University / Institution:
# 71
Country:
# 61,487
Region:
# 69,578
World:
# 187,302
H-Index
Total:
34
Last 6 Year:
18
Last 6 Year/Total:
0.529
i10 Index
Total:
52
Last 6 Year:
25
Last 6 Year/Total:
0.481
Citation
Total:
3,827
Last 6 Year:
1,001
Last 6 Year/Total:
0.262
H-Index Rankings
University / Institution:
# 77
Country:
# 64,375
Region:
# 72,849
World:
# 197,747
H-Index
Total:
33
Last 6 Year:
19
Last 6 Year/Total:
0.576
i10 Index
Total:
71
Last 6 Year:
38
Last 6 Year/Total:
0.535
Citation
Total:
3,636
Last 6 Year:
1,285
Last 6 Year/Total:
0.353
H-Index Rankings
University / Institution:
# 87
Country:
# 71,596
Region:
# 81,049
World:
# 224,346
H-Index
Total:
31
Last 6 Year:
17
Last 6 Year/Total:
0.548
i10 Index
Total:
45
Last 6 Year:
26
Last 6 Year/Total:
0.578
Citation
Total:
3,258
Last 6 Year:
1,158
Last 6 Year/Total:
0.355
H-Index Rankings
University / Institution:
# 102
Country:
# 84,664
Region:
# 95,849
World:
# 274,002
H-Index
Total:
27
Last 6 Year:
25
Last 6 Year/Total:
0.926
i10 Index
Total:
35
Last 6 Year:
31
Last 6 Year/Total:
0.886
Citation
Total:
3,043
Last 6 Year:
1,447
Last 6 Year/Total:
0.476
H-Index Rankings
University / Institution:
# 115
Country:
# 95,925
Region:
# 108,559
World:
# 317,588
H-Index
Total:
25
Last 6 Year:
20
Last 6 Year/Total:
0.800
i10 Index
Total:
32
Last 6 Year:
29
Last 6 Year/Total:
0.906
Citation
Total:
2,603
Last 6 Year:
1,210
Last 6 Year/Total:
0.465
H-Index Rankings
University / Institution:
# 122
Country:
# 103,656
Region:
# 117,309
World:
# 348,663
H-Index
Total:
24
Last 6 Year:
14
Last 6 Year/Total:
0.583
i10 Index
Total:
31
Last 6 Year:
14
Last 6 Year/Total:
0.452
Citation
Total:
2,204
Last 6 Year:
493
Last 6 Year/Total:
0.224
H-Index Rankings
University / Institution:
# 147
Country:
# 123,985
Region:
# 140,140
World:
# 428,240
H-Index
Total:
21
Last 6 Year:
11
Last 6 Year/Total:
0.524
i10 Index
Total:
26
Last 6 Year:
11
Last 6 Year/Total:
0.423
Citation
Total:
1,816
Last 6 Year:
768
Last 6 Year/Total:
0.423
Mark Salvatore
Planetary Geology
Laboratory Analyses
Remote Sensing
Field Techniques
Landscape Evolution
H-Index Rankings
University / Institution:
# 148
Country:
# 126,446
Region:
# 142,859
World:
# 437,578
H-Index
Total:
20
Last 6 Year:
18
Last 6 Year/Total:
0.900
i10 Index
Total:
28
Last 6 Year:
26
Last 6 Year/Total:
0.929
Citation
Total:
1,301
Last 6 Year:
1,044
Last 6 Year/Total:
0.802
Valérie Payré
Petrology
Planetary Science
Planetary Remote Sensing
Planetary Geochemistry
H-Index Rankings
University / Institution:
# 166
Country:
# 143,143
Region:
# 161,510
World:
# 504,112
H-Index
Total:
18
Last 6 Year:
16
Last 6 Year/Total:
0.889
i10 Index
Total:
24
Last 6 Year:
23
Last 6 Year/Total:
0.958
Citation
Total:
1,600
Last 6 Year:
1,260
Last 6 Year/Total:
0.788
H-Index Rankings
University / Institution:
# 197
Country:
# 169,067
Region:
# 190,439
World:
# 608,691
H-Index
Total:
16
Last 6 Year:
8
Last 6 Year/Total:
0.500
i10 Index
Total:
17
Last 6 Year:
6
Last 6 Year/Total:
0.353
Citation
Total:
1,246
Last 6 Year:
348
Last 6 Year/Total:
0.279
H-Index Rankings
University / Institution:
# 201
Country:
# 174,508
Region:
# 196,377
World:
# 628,763
H-Index
Total:
15
Last 6 Year:
13
Last 6 Year/Total:
0.867
i10 Index
Total:
17
Last 6 Year:
15
Last 6 Year/Total:
0.882
Citation
Total:
1,367
Last 6 Year:
481
Last 6 Year/Total:
0.352
H-Index Rankings
University / Institution:
# 210
Country:
# 182,936
Region:
# 205,671
World:
# 663,725
H-Index
Total:
14
Last 6 Year:
13
Last 6 Year/Total:
0.929
i10 Index
Total:
19
Last 6 Year:
14
Last 6 Year/Total:
0.737
Citation
Total:
1,043
Last 6 Year:
594
Last 6 Year/Total:
0.570
John M Fegyveresi
Paleoclimate
Glaciology
Physical Ice Properties
Ice Cores
Ice Geophysics
H-Index Rankings
University / Institution:
# 227
Country:
# 195,091
Region:
# 219,179
World:
# 713,896
H-Index
Total:
13
Last 6 Year:
12
Last 6 Year/Total:
0.923
i10 Index
Total:
16
Last 6 Year:
15
Last 6 Year/Total:
0.938
Citation
Total:
1,375
Last 6 Year:
991
Last 6 Year/Total:
0.721
H-Index Rankings
University / Institution:
# 264
Country:
# 216,685
Region:
# 243,092
World:
# 804,737
H-Index
Total:
11
Last 6 Year:
11
Last 6 Year/Total:
1.000
i10 Index
Total:
16
Last 6 Year:
13
Last 6 Year/Total:
0.813
Citation
Total:
626
Last 6 Year:
374
Last 6 Year/Total:
0.597
H-Index Rankings
University / Institution:
# 331
Country:
# 266,869
Region:
# 298,439
World:
# 1,055,372
H-Index
Total:
7
Last 6 Year:
6
Last 6 Year/Total:
0.857
i10 Index
Total:
7
Last 6 Year:
5
Last 6 Year/Total:
0.714
Citation
Total:
767
Last 6 Year:
356
Last 6 Year/Total:
0.464
H-Index Rankings
University / Institution:
# 335
Country:
# 268,519
Region:
# 300,275
World:
# 1,063,593
H-Index
Total:
7
Last 6 Year:
6
Last 6 Year/Total:
0.857
i10 Index
Total:
6
Last 6 Year:
5
Last 6 Year/Total:
0.833
Citation
Total:
146
Last 6 Year:
119
Last 6 Year/Total:
0.815
H-Index Rankings
University / Institution:
# 337
Country:
# 269,869
Region:
# 301,761
World:
# 1,074,060
H-Index
Total:
7
Last 6 Year:
5
Last 6 Year/Total:
0.714
i10 Index
Total:
6
Last 6 Year:
4
Last 6 Year/Total:
0.667
Citation
Total:
404
Last 6 Year:
130
Last 6 Year/Total:
0.322
Charles Truettner
Wildfires
Ecohydrology
Dendroclimatology
Climate Change
Isotope Geochemistry
H-Index Rankings
University / Institution:
# 346
Country:
# 277,405
Region:
# 310,170
World:
# 1,127,149
H-Index
Total:
6
Last 6 Year:
5
Last 6 Year/Total:
0.833
i10 Index
Total:
5
Last 6 Year:
3
Last 6 Year/Total:
0.600
Citation
Total:
175
Last 6 Year:
148
Last 6 Year/Total:
0.846
H-Index Rankings
University / Institution:
# 358
Country:
# 287,901
Region:
# 322,010
World:
# 1,221,402
H-Index
Total:
5
Last 6 Year:
3
Last 6 Year/Total:
0.600
i10 Index
Total:
2
Last 6 Year:
2
Last 6 Year/Total:
1.000
Citation
Total:
85
Last 6 Year:
63
Last 6 Year/Total:
0.741
H-Index Rankings
University / Institution:
# 364
Country:
# 291,940
Region:
# 326,673
World:
# 1,255,539
H-Index
Total:
4
Last 6 Year:
4
Last 6 Year/Total:
1.000
i10 Index
Total:
2
Last 6 Year:
2
Last 6 Year/Total:
1.000
Citation
Total:
66
Last 6 Year:
64
Last 6 Year/Total:
0.970
H-Index Rankings
University / Institution:
# 367
Country:
# 294,612
Region:
# 329,709
World:
# 1,286,670
H-Index
Total:
4
Last 6 Year:
3
Last 6 Year/Total:
0.750
i10 Index
Total:
2
Last 6 Year:
2
Last 6 Year/Total:
1.000
Citation
Total:
92
Last 6 Year:
70
Last 6 Year/Total:
0.761
H-Index Rankings
University / Institution:
# 372
Country:
# 300,139
Region:
# 336,025
World:
# 1,339,567
H-Index
Total:
3
Last 6 Year:
3
Last 6 Year/Total:
1.000
i10 Index
Total:
1
Last 6 Year:
1
Last 6 Year/Total:
1.000
Citation
Total:
48
Last 6 Year:
48
Last 6 Year/Total:
1.000
Emily Schottenfels
geology
structural geology
tectonics
tectonic geomorphology
earthquakes
H-Index Rankings
University / Institution:
# 380
Country:
# 306,888
Region:
# 343,732
World:
# 1,417,576
H-Index
Total:
2
Last 6 Year:
2
Last 6 Year/Total:
1.000
i10 Index
Total:
1
Last 6 Year:
1
Last 6 Year/Total:
1.000
Citation
Total:
42
Last 6 Year:
41
Last 6 Year/Total:
0.976
H-Index Rankings
University / Institution:
# 381
Country:
# 307,294
Region:
# 344,209
World:
# 1,421,754
H-Index
Total:
2
Last 6 Year:
2
Last 6 Year/Total:
1.000
i10 Index
Total:
1
Last 6 Year:
1
Last 6 Year/Total:
1.000
Citation
Total:
31
Last 6 Year:
31
Last 6 Year/Total:
1.000
Emerson M Lynch
active tectonics
tectonic geomorphology
paleoseismology
earthquake geology
H-Index Rankings
University / Institution:
# 382
Country:
# 307,359
Region:
# 344,285
World:
# 1,422,407
H-Index
Total:
2
Last 6 Year:
2
Last 6 Year/Total:
1.000
i10 Index
Total:
1
Last 6 Year:
1
Last 6 Year/Total:
1.000
Citation
Total:
30
Last 6 Year:
30
Last 6 Year/Total:
1.000
H-Index Rankings
University / Institution:
# 387
Country:
# 310,879
Region:
# 348,383
World:
# 1,475,535
H-Index
Total:
2
Last 6 Year:
2
Last 6 Year/Total:
1.000
i10 Index
Total:
0
Last 6 Year:
0
Last 6 Year/Total:
0
Citation
Total:
8
Last 6 Year:
8
Last 6 Year/Total:
1.000
H-Index Rankings
University / Institution:
# 393
Country:
# 316,397
Region:
# 354,672
World:
# 1,536,255
H-Index
Total:
1
Last 6 Year:
1
Last 6 Year/Total:
1.000
i10 Index
Total:
0
Last 6 Year:
0
Last 6 Year/Total:
0
Citation
Total:
8
Last 6 Year:
8
Last 6 Year/Total:
1.000
H-Index Rankings
University / Institution:
# 394
Country:
# 317,428
Region:
# 355,847
World:
# 1,550,571
H-Index
Total:
1
Last 6 Year:
1
Last 6 Year/Total:
1.000
i10 Index
Total:
0
Last 6 Year:
0
Last 6 Year/Total:
0
Citation
Total:
5
Last 6 Year:
5
Last 6 Year/Total:
1.000
H-Index Rankings
University / Institution:
# 394
Country:
# 317,428
Region:
# 355,847
World:
# 1,550,571
H-Index
Total:
1
Last 6 Year:
1
Last 6 Year/Total:
1.000
i10 Index
Total:
0
Last 6 Year:
0
Last 6 Year/Total:
0
Citation
Total:
5
Last 6 Year:
4
Last 6 Year/Total:
0.800
H-Index Rankings
University / Institution:
# 396
Country:
# 319,447
Region:
# 358,103
World:
# 1,580,348
H-Index
Total:
1
Last 6 Year:
1
Last 6 Year/Total:
1.000
i10 Index
Total:
0
Last 6 Year:
0
Last 6 Year/Total:
0
Citation
Total:
2
Last 6 Year:
2
Last 6 Year/Total:
1.000
H-Index Rankings
University / Institution:
# 399
Country:
# 321,607
Region:
# 360,524
World:
# 1,611,990
H-Index
Total:
0
Last 6 Year:
0
Last 6 Year/Total:
0
i10 Index
Total:
0
Last 6 Year:
0
Last 6 Year/Total:
0
Citation
Total:
0
Last 6 Year:
0
Last 6 Year/Total:
0
AD Scientific Index - World Scientists Rankings - 2024 H INDEX i10 INDEX CITATION
University /
Institution
Country Region World Name Country University / Institution Subject Total Last 6 year Last 6 year/total Total Last 6 year Last 6 year/total Total Last 6 year Last 6 year/total
3 4,253 4,635 9,244
United States Northern Arizona University Northern Arizona University Engineering & Technology / Earth Sciences

Earth observation | Terrestrial Ecosystems | Biodiversity Habitat | Remote Sensing | Canopy Structure |

97 67 0.691 215 180 0.837 47,111 24,290 0.516
52 48,507 54,814 140,607
United States Northern Arizona University Northern Arizona University Engineering & Technology / Earth Sciences

isotope geochemistry | magmatic geochronology |

39 20 0.513 53 37 0.698 5,773 1,365 0.236
53 48,699 55,027 141,143
United States Northern Arizona University Northern Arizona University Engineering & Technology / Earth Sciences

Ecosystems | soils | land use history | pyrogenic carbon/fire history |

39 17 0.436 54 26 0.481 8,728 1,275 0.146
62 54,815 61,960 162,950
United States Northern Arizona University Northern Arizona University Engineering & Technology / Earth Sciences

geological sciences |

36 26 0.722 60 49 0.817 3,549 1,567 0.442
69 59,450 67,235 179,570
United States Northern Arizona University Northern Arizona University Engineering & Technology / Earth Sciences

Planetary Science | Remote Sensing | Instrumentation | Geology | Mars |

34 30 0.882 51 46 0.902 8,274 4,542 0.549
71 61,487 69,578 187,302
United States Northern Arizona University Northern Arizona University Engineering & Technology / Earth Sciences

Planetary science |

34 18 0.529 52 25 0.481 3,827 1,001 0.262
77 64,375 72,849 197,747
United States Northern Arizona University Northern Arizona University Engineering & Technology / Earth Sciences

tectonics | sedimentary geology | structural geology | stratigraphy |

33 19 0.576 71 38 0.535 3,636 1,285 0.353
87 71,596 81,049 224,346
United States Northern Arizona University Northern Arizona University Engineering & Technology / Earth Sciences

structural geology | tectonics | geochemistry |

31 17 0.548 45 26 0.578 3,258 1,158 0.355
102 84,664 95,849 274,002
United States Northern Arizona University Northern Arizona University Engineering & Technology / Earth Sciences

Geochemistry | biogeochemistry | chemistry of metals |

27 25 0.926 35 31 0.886 3,043 1,447 0.476
115 95,925 108,559 317,588
United States Northern Arizona University Northern Arizona University Engineering & Technology / Earth Sciences

Sedimentary Geology | Geochronology |

25 20 0.800 32 29 0.906 2,603 1,210 0.465
Adscientificindex

Click for INSTITUTIONAL REGISTRATION and PREMIUM MEMBERSHIP advantages

122 103,656 117,309 348,663
United States Northern Arizona University Northern Arizona University Engineering & Technology / Earth Sciences

geology | petrology | tectonics |

24 14 0.583 31 14 0.452 2,204 493 0.224
147 123,985 140,140 428,240
United States Northern Arizona University Northern Arizona University Engineering & Technology / Earth Sciences

geology |

21 11 0.524 26 11 0.423 1,816 768 0.423
148 126,446 142,859 437,578
United States Northern Arizona University Northern Arizona University Engineering & Technology / Earth Sciences

Planetary Geology | Laboratory Analyses | Remote Sensing | Field Techniques | Landscape Evolution |

20 18 0.900 28 26 0.929 1,301 1,044 0.802
166 143,143 161,510 504,112
United States Northern Arizona University Northern Arizona University Engineering & Technology / Earth Sciences

Petrology | Planetary Science | Planetary Remote Sensing | Planetary Geochemistry |

18 16 0.889 24 23 0.958 1,600 1,260 0.788
197 169,067 190,439 608,691
United States Northern Arizona University Northern Arizona University Engineering & Technology / Earth Sciences

Geomorphology |

16 8 0.500 17 6 0.353 1,246 348 0.279
201 174,508 196,377 628,763
United States Northern Arizona University Northern Arizona University Engineering & Technology / Earth Sciences

biogeochemistry | ecosystem science | forest ecology | phenology |

15 13 0.867 17 15 0.882 1,367 481 0.352
210 182,936 205,671 663,725
United States Northern Arizona University Northern Arizona University Engineering & Technology / Earth Sciences

structural geology | active tectonics | tectonic geomorphology |

14 13 0.929 19 14 0.737 1,043 594 0.570
227 195,091 219,179 713,896
United States Northern Arizona University Northern Arizona University Engineering & Technology / Earth Sciences

Paleoclimate | Glaciology | Physical Ice Properties | Ice Cores | Ice Geophysics |

13 12 0.923 16 15 0.938 1,375 991 0.721
264 216,685 243,092 804,737
United States Northern Arizona University Northern Arizona University Engineering & Technology / Earth Sciences

Geophysics |

11 11 1.000 16 13 0.813 626 374 0.597
331 266,869 298,439 1,055,372
United States Northern Arizona University Northern Arizona University Engineering & Technology / Earth Sciences

seismic design of bridges | accelerated bridge construction |

7 6 0.857 7 5 0.714 767 356 0.464
335 268,519 300,275 1,063,593
United States Northern Arizona University Northern Arizona University Engineering & Technology / Earth Sciences

Geology and geochemistry |

7 6 0.857 6 5 0.833 146 119 0.815
337 269,869 301,761 1,074,060
United States Northern Arizona University Northern Arizona University Engineering & Technology / Earth Sciences

Fluvial Geomorphology | Hydrology |

7 5 0.714 6 4 0.667 404 130 0.322
346 277,405 310,170 1,127,149
United States Northern Arizona University Northern Arizona University Engineering & Technology / Earth Sciences

Wildfires | Ecohydrology | Dendroclimatology | Climate Change | Isotope Geochemistry |

6 5 0.833 5 3 0.600 175 148 0.846
358 287,901 322,010 1,221,402
United States Northern Arizona University Northern Arizona University Engineering & Technology / Earth Sciences

planetary science | spectroscopy | geochemistry | glaciology |

5 3 0.600 2 2 1.000 85 63 0.741
364 291,940 326,673 1,255,539
United States Northern Arizona University Northern Arizona University Engineering & Technology / Earth Sciences

Earth Systems | Marine Chemistry | Isotope Geochemistry |

4 4 1.000 2 2 1.000 66 64 0.970
367 294,612 329,709 1,286,670
United States Northern Arizona University Northern Arizona University Engineering & Technology / Earth Sciences

Geology | Igneous Petrology | Geochemistry | Volcanology |

4 3 0.750 2 2 1.000 92 70 0.761
372 300,139 336,025 1,339,567
United States Northern Arizona University Northern Arizona University Engineering & Technology / Earth Sciences

Permafrost | soil carbon | biogeochemistry |

3 3 1.000 1 1 1.000 48 48 1.000
380 306,888 343,732 1,417,576
United States Northern Arizona University Northern Arizona University Engineering & Technology / Earth Sciences

geology | structural geology | tectonics | tectonic geomorphology | earthquakes |

2 2 1.000 1 1 1.000 42 41 0.976
381 307,294 344,209 1,421,754
United States Northern Arizona University Northern Arizona University Engineering & Technology / Earth Sciences

Subductions | Seismology | Aleutian Islands | forearcs |

2 2 1.000 1 1 1.000 31 31 1.000
382 307,359 344,285 1,422,407
United States Northern Arizona University Northern Arizona University Engineering & Technology / Earth Sciences

active tectonics | tectonic geomorphology | paleoseismology | earthquake geology |

2 2 1.000 1 1 1.000 30 30 1.000
Adscientificindex

A New and Different Feature!!!! University Subject Rankings in 12 subjects:

Ranking and analysis of universities by subject in 12 fields such as health, engineering, natural sciences, education, business, economics, social sciences, etc.
387 310,879 348,383 1,475,535
United States Northern Arizona University Northern Arizona University Engineering & Technology / Earth Sciences

Biogeochemistry | Community Ecology | Global Change |

2 2 1.000 0 0 0 8 8 1.000
393 316,397 354,672 1,536,255
United States Northern Arizona University Northern Arizona University Engineering & Technology / Earth Sciences

Geophysics | Seismology | Geodesy |

1 1 1.000 0 0 0 8 8 1.000
394 317,428 355,847 1,550,571
United States Northern Arizona University Northern Arizona University Engineering & Technology / Earth Sciences

seismology | geophysics | marine geology | marine geophysics |

1 1 1.000 0 0 0 5 5 1.000
394 317,428 355,847 1,550,571
United States Northern Arizona University Northern Arizona University Engineering & Technology / Earth Sciences

Petrology | geochemistry |

1 1 1.000 0 0 0 5 4 0.800
396 319,447 358,103 1,580,348
United States Northern Arizona University Northern Arizona University Engineering & Technology / Earth Sciences

High Temperature Geochemistry | Igneous Petrology |

1 1 1.000 0 0 0 2 2 1.000
399 321,607 360,524 1,611,990
United States Northern Arizona University Northern Arizona University Engineering & Technology / Earth Sciences

Geology | Geothermal Energy | Petrology | Volcanology | Astronomy |

0 0 0 0 0 0 0 0 0