World's Best Scientists 2026 revealed!
Award Badge
Earth Science
Mexico
2026

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Earth Science 47 4017 3685 6 6 120 8190

John S. Armstrong-Altrin publications per year

The chart shows the history of publications by John S. Armstrong-Altrin between 2003 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. John S. Armstrong-Altrin published across 23 years, from 2003 to 2025, averaging 6.1 papers a year. Output peaked at 18 publications in 2021. 21 of the 140 publications appeared in the last two years.

No. of publications
5 10 15
Bar chart. Horizontal axis: year, 2003 to 2025. Vertical axis: number of publications, 0 to 18. Peak 18 publications in 2021. 2003: 1 publication 2004: 2 publications 2005: 1 publication 2006: 2 publications 2007: 4 publications 2008: 3 publications 2009: 2 publications 2010: 2 publications 2011: 5 publications 2012: 1 publication 2013: 4 publications 2014: 4 publications 2015: 5 publications 2016: 3 publications 2017: 7 publications 2018: 8 publications 2019: 5 publications 2020: 11 publications 2021: 18 publications 2022: 18 publications 2023: 13 publications 2024: 16 publications 2025: 5 publications
2003 2025

140 publications in total across all disciplines

View publications per year as a table
John S. Armstrong-Altrin: publications per year, 2003 to 2025
Year Publications
2003 1
2004 2
2005 1
2006 2
2007 4
2008 3
2009 2
2010 2
2011 5
2012 1
2013 4
2014 4
2015 5
2016 3
2017 7
2018 8
2019 5
2020 11
2021 18
2022 18
2023 13
2024 16
2025 5
Total 140
Download as CSV

John S. Armstrong-Altrin publication distribution in Earth Science in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Earth Science in 2026. The highlighted bar marks where John S. Armstrong-Altrin sits on this spectrum.

No. of scientists
100 200 300 400 500
Bar chart with 58 bars. Horizontal axis: publications, 38–47 to 603+. Vertical axis: number of scientists, 0 to 557. Most scientists, 557, have 128–137 publications. The last bar groups every scientist with 603 publications or more. The highlighted bar, 118–127 publications, is where this scientist sits. 38–47 publications: 5 scientists 48–57 publications: 33 scientists 58–67 publications: 94 scientists 68–77 publications: 161 scientists 78–87 publications: 278 scientists 88–97 publications: 376 scientists 98–107 publications: 404 scientists 108–117 publications: 484 scientists 118–127 publications: 540 scientists 128–137 publications: 557 scientists 138–147 publications: 491 scientists 148–157 publications: 495 scientists 158–167 publications: 458 scientists 168–177 publications: 490 scientists 178–187 publications: 414 scientists 188–197 publications: 401 scientists 198–207 publications: 333 scientists 208–217 publications: 292 scientists 218–227 publications: 290 scientists 228–237 publications: 262 scientists 238–247 publications: 243 scientists 248–257 publications: 208 scientists 258–267 publications: 185 scientists 268–277 publications: 147 scientists 278–287 publications: 128 scientists 288–297 publications: 119 scientists 298–307 publications: 120 scientists 308–317 publications: 107 scientists 318–327 publications: 93 scientists 328–337 publications: 87 scientists 338–347 publications: 64 scientists 348–357 publications: 87 scientists 358–367 publications: 60 scientists 368–377 publications: 60 scientists 378–387 publications: 34 scientists 388–397 publications: 50 scientists 398–407 publications: 44 scientists 408–417 publications: 31 scientists 418–427 publications: 39 scientists 428–437 publications: 27 scientists 438–447 publications: 36 scientists 448–457 publications: 27 scientists 458–467 publications: 29 scientists 468–477 publications: 30 scientists 478–487 publications: 19 scientists 488–497 publications: 15 scientists 498–507 publications: 18 scientists 508–517 publications: 19 scientists 518–527 publications: 16 scientists 528–537 publications: 10 scientists 538–547 publications: 11 scientists 548–557 publications: 14 scientists 558–567 publications: 11 scientists 568–577 publications: 7 scientists 578–587 publications: 14 scientists 588–597 publications: 5 scientists 598–602 publications: 4 scientists 603+ publications: 100 scientists
38–47 publications 603+

This scientist: 120 publications — 22nd percentile

22% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 603 publications or more.

View publications distribution as a table
Number of Earth Science scientists by publication count, Research.com 2026 ranking edition. Based on 9,176 ranked scientists.
Publications Scientists This scientist
38–47 5
48–57 33
58–67 94
68–77 161
78–87 278
88–97 376
98–107 404
108–117 484
118–127 540 120
128–137 557
138–147 491
148–157 495
158–167 458
168–177 490
178–187 414
188–197 401
198–207 333
208–217 292
218–227 290
228–237 262
238–247 243
248–257 208
258–267 185
268–277 147
278–287 128
288–297 119
298–307 120
308–317 107
318–327 93
328–337 87
338–347 64
348–357 87
358–367 60
368–377 60
378–387 34
388–397 50
398–407 44
408–417 31
418–427 39
428–437 27
438–447 36
448–457 27
458–467 29
468–477 30
478–487 19
488–497 15
498–507 18
508–517 19
518–527 16
528–537 10
538–547 11
548–557 14
558–567 11
568–577 7
578–587 14
588–597 5
598–602 4
603+ 100
Download as CSV

John S. Armstrong-Altrin D-index placement in Earth Science in 2026

The chart shows the D-index (discipline H-index) distribution of Earth Science scientists ranked by Research.com in 2026. The highlighted bar marks where John S. Armstrong-Altrin sits on this spectrum.

No. of scientists
100 200 300
Bar chart with 77 bars. Horizontal axis: D-Index, 30 to 106+. Vertical axis: number of scientists, 0 to 389. Most scientists, 389, have 36 D-Index. The last bar groups every scientist with 106 D-Index or more. The highlighted bar, 47 D-Index, is where this scientist sits. 30 D-Index: 144 scientists 31 D-Index: 215 scientists 32 D-Index: 278 scientists 33 D-Index: 379 scientists 34 D-Index: 366 scientists 35 D-Index: 372 scientists 36 D-Index: 389 scientists 37 D-Index: 366 scientists 38 D-Index: 344 scientists 39 D-Index: 349 scientists 40 D-Index: 296 scientists 41 D-Index: 289 scientists 42 D-Index: 277 scientists 43 D-Index: 279 scientists 44 D-Index: 248 scientists 45 D-Index: 257 scientists 46 D-Index: 212 scientists 47 D-Index: 202 scientists 48 D-Index: 207 scientists 49 D-Index: 204 scientists 50 D-Index: 183 scientists 51 D-Index: 178 scientists 52 D-Index: 182 scientists 53 D-Index: 178 scientists 54 D-Index: 163 scientists 55 D-Index: 117 scientists 56 D-Index: 163 scientists 57 D-Index: 120 scientists 58 D-Index: 113 scientists 59 D-Index: 136 scientists 60 D-Index: 135 scientists 61 D-Index: 96 scientists 62 D-Index: 103 scientists 63 D-Index: 83 scientists 64 D-Index: 103 scientists 65 D-Index: 83 scientists 66 D-Index: 89 scientists 67 D-Index: 92 scientists 68 D-Index: 89 scientists 69 D-Index: 78 scientists 70 D-Index: 75 scientists 71 D-Index: 53 scientists 72 D-Index: 62 scientists 73 D-Index: 54 scientists 74 D-Index: 35 scientists 75 D-Index: 52 scientists 76 D-Index: 50 scientists 77 D-Index: 32 scientists 78 D-Index: 37 scientists 79 D-Index: 20 scientists 80 D-Index: 33 scientists 81 D-Index: 36 scientists 82 D-Index: 34 scientists 83 D-Index: 34 scientists 84 D-Index: 24 scientists 85 D-Index: 19 scientists 86 D-Index: 18 scientists 87 D-Index: 26 scientists 88 D-Index: 30 scientists 89 D-Index: 17 scientists 90 D-Index: 21 scientists 91 D-Index: 19 scientists 92 D-Index: 15 scientists 93 D-Index: 14 scientists 94 D-Index: 20 scientists 95 D-Index: 9 scientists 96 D-Index: 10 scientists 97 D-Index: 15 scientists 98 D-Index: 13 scientists 99 D-Index: 3 scientists 100 D-Index: 13 scientists 101 D-Index: 3 scientists 102 D-Index: 9 scientists 103 D-Index: 4 scientists 104 D-Index: 6 scientists 105 D-Index: 6 scientists 106+ D-Index: 98 scientists
30 D-Index 106+

This scientist: 47 D-Index — 57th percentile

57% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 106 D-Index or more.

View D-Index distribution as a table
Number of Earth Science scientists by D-index, Research.com 2026 ranking edition. Based on 9,176 ranked scientists.
D-Index Scientists This scientist
30 144
31 215
32 278
33 379
34 366
35 372
36 389
37 366
38 344
39 349
40 296
41 289
42 277
43 279
44 248
45 257
46 212
47 202 47
48 207
49 204
50 183
51 178
52 182
53 178
54 163
55 117
56 163
57 120
58 113
59 136
60 135
61 96
62 103
63 83
64 103
65 83
66 89
67 92
68 89
69 78
70 75
71 53
72 62
73 54
74 35
75 52
76 50
77 32
78 37
79 20
80 33
81 36
82 34
83 34
84 24
85 19
86 18
87 26
88 30
89 17
90 21
91 19
92 15
93 14
94 20
95 9
96 10
97 15
98 13
99 3
100 13
101 3
102 9
103 4
104 6
105 6
106+ 98
Download as CSV

Research.com Recognitions

  • 2026 - Research.com Earth Science in Mexico Leader Award
  • 2025 - Research.com Earth Science in Mexico Leader Award

Overview

John S. Armstrong-Altrin is affiliated with the National Autonomous University of Mexico in Mexico. The primary focus of their academic work lies within Earth and Planetary Sciences, with a substantial number of publications (124) in this field. Their research contributions extend into several specialized subfields including Geochemistry and Petrology, Geophysics, Pollution, Atmospheric Science, and Artificial Intelligence.

The scientist's major research topics encompass:

  • Geochemistry and Elemental Analysis
  • Geological and Geochemical Analysis
  • Geology and Paleoclimatology Research
  • Geochemistry and Geologic Mapping
  • Heavy metals in environment
  • Geological formations and processes
  • Paleontology and Stratigraphy of Fossils

Notable recent papers authored or co-authored by John S. Armstrong-Altrin include:

  • "Heavy metal contamination and its ecological risks in the beach sediments along the Atlantic Ocean (Limbe coastal fringes, Cameroon)", 2020, Earth Systems and Environment
  • "Detrital zircon U-Pb geochronology and geochemistry of the Riachuelos and Palma Sola beach sediments, Veracruz State, Gulf of Mexico: a new insight on palaeoenvironment", 2020, Journal of Palaeogeography
  • "Mineralogy and geochemistry of Tecolutla and Coatzacoalcos beach sediments, SW Gulf of Mexico", 2021, Applied Geochemistry
  • "Microtexture and U-Pb geochronology of detrital zircon grains in the Chachalacas beach, Veracruz State, Gulf of Mexico", 2020, Geological Journal
  • "Geochemistry of marine sediments adjacent to the Los Tuxtlas Volcanic Complex, Gulf of Mexico: Constraints on weathering and provenance", 2022, Applied Geochemistry

The scientist frequently publishes in several established scientific journals, with multiple contributions to the following venues:

  • Arabian Journal of Geosciences
  • Journal of Palaeogeography
  • Geological Journal
  • Journal of African Earth Sciences
  • Applied Geochemistry

John S. Armstrong-Altrin collaborates regularly with several co-authors, including:

  • Armel Zacharie Ekoa Bessa
  • Mayla A. Ramos-Vázquez
  • Gabriel Ngueutchoua
  • Jayagopal Madhavaraju
  • Victorine Ambassa Bela

Best Publications

  • Geochemistry of Sandstones from the Upper Miocene Kudankulam Formation, Southern India: Implications for Provenance, Weathering, and Tectonic Setting

    J.S. Armstrong-Altrin;Yong Il Lee;Surendra P. Verma;S. Ramasamy

  • New multi-dimensional diagrams for tectonic discrimination of siliciclastic sediments and their application to Precambrian basins

    Surendra P. Verma;John S. Armstrong-Altrin

  • Critical evaluation of six tectonic setting discrimination diagrams using geochemical data of Neogene sediments from known tectonic settings

    J.S. Armstrong-Altrin;Surendra P. Verma;Surendra P. Verma

  • Geochemical discrimination of siliciclastic sediments from active and passive margin settings

    Surendra P. Verma;John S. Armstrong-Altrin

  • Provenance and depositional history of continental slope sediments in the Southwestern Gulf of Mexico unraveled by geochemical analysis

    John S. Armstrong-Altrin;María Luisa Machain-Castillo;Leticia Rosales-Hoz;Arturo Carranza-Edwards

  • Geochemistry of Neoproterozoic shales of the Rabanpalli Formation, Bhima Basin, Northern Karnataka, southern India: implications for provenance and paleoredox conditions

    Ramasamy Nagarajan;Jayagopal Madhavaraju;Raghavendra Nagendra;John Selvamony Armstrong-Altrin

  • Geochemistry of the Jurassic and Upper Cretaceous shales from the Molango Region, Hidalgo, eastern Mexico: Implications for source-area weathering, provenance, and tectonic setting

    John S. Armstrong-Altrin;Ramasamy Nagarajan;Jayagopal Madhavaraju;Leticia Rosalez-Hoz

  • Geochemistry of beach sands along the western Gulf of Mexico, Mexico: Implication for provenance

    John S. Armstrong-Altrin;Yong Il Lee;Juan J. Kasper-Zubillaga;A. Carranza-Edwards

  • Petrography and geochemistry of sands from the Chachalacas and Veracruz beach areas, western Gulf of Mexico, Mexico: Constraints on provenance and tectonic setting

    John S. Armstrong-Altrin;Ramasamy Nagarajan;Vysetti Balaram;Olmedo Natalhy-Pineda

  • Mineralogy and geochemistry of sands along the Manzanillo and El Carrizal beach areas, southern Mexico: implications for palaeoweathering, provenance and tectonic setting

    John S. Armstrong-Altrin;Yong Il Lee;Juan J. Kasper-Zubillaga;Elisandra Trejo-Ramírez

  • Evaluation of two multidimensional discrimination diagrams from beach and deep-sea sediments from the Gulf of Mexico and their application to Precambrian clastic sedimentary rocks

    John S. Armstrong-Altrin

  • Provenance of sands from Cazones, Acapulco, and Bahía Kino beaches, México

    John S. Armstrong-Altrin

  • Petrography and geochemistry of clastic sedimentary rocks as evidences for provenance of the Lower Cambrian Lalun Formation, Posht-e-badam block, Central Iran

    N. Etemad-Saeed;M. Hosseini-Barzi;John S. Armstrong-Altrin

  • Geochemistry of sands along the San Nicolás and San Carlos beaches, Gulf of California, Mexico: implications for provenance and tectonic setting

    John S. Armstrong-Altrin;Ramasamy Nagarajan;Yong Il Lee

  • Trace metal enrichments in core sediments in Muthupet mangroves, SE coast of India: Application of acid leachable technique

    D. Janaki-Raman;M.P. Jonathan;S. Srinivasalu;J.S. Armstrong-Altrin

  • Geochemistry of Neoproterozoic limestones of the Shahabad Formation, Bhima Basin, Karnataka, southern India

    Ramasamy Nagarajan;Jayagopal Madhavaraju;John S. Armstrong-Altrin;Raghavendra Nagendra

  • Provenance discrimination between Atasta and Alvarado beach sands, western Gulf of Mexico, Mexico: Constraints from detrital zircon chemistry and U–Pb geochronology

    John S. Armstrong-Altrin;Mayla A. Ramos-Vázquez;Ana C. Zavala-León;Patricia C. Montiel-García

  • Mineralogy, geochemistry, and radiocarbon ages of deep sea sediments from the Gulf of Mexico, Mexico

    John S. Armstrong-Altrin;María Luisa Machain-Castillo

  • Assessment of acid leachable trace metals in sediment cores from River Uppanar, Cuddalore, Southeast coast of India

    T. Ayyamperumal;M.P. Jonathan;S. Srinivasalu;J.S. Armstrong-Altrin

  • Geochemistry of upper miocene kudankulam limestones, Southern India

    J. S. Armstrong-Altrin;Surendra P. Verma;J. Madhavaraju;Yong Il Lee

  • Carbon and oxygen isotope geochemistry of Neoproterozoic limestones of the Shahabad Formation, Bhima basin, Karnataka, southern India

    Ramasamy Nagarajan;Alcides N. Sial;John S. Armstrong-Altrin;Jayagopal Madhavaraju

Frequent Co-Authors

Surendra P. Verma
Surendra P. Verma National Autonomous University of Mexico
Yong Il Lee
Yong Il Lee Seoul National University of Science and Technology
Alcides N. Sial
Alcides N. Sial Federal University of Pernambuco
M.P. Jonathan
M.P. Jonathan Instituto Politécnico Nacional
Vysetti Balaram
Vysetti Balaram National Geophysical Research Institute
Rob M. Ellam
Rob M. Ellam Tianjin University
Joan-Albert Sanchez-Cabeza
Joan-Albert Sanchez-Cabeza National Autonomous University of Mexico
Richard H. Worden
Richard H. Worden University of Liverpool
G. Nelson Eby
G. Nelson Eby University of Massachusetts Lowell
Ana Carolina Ruiz-Fernández
Ana Carolina Ruiz-Fernández National Autonomous University of Mexico

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Related Online Degrees & Career Pathways

Studying Earth Science in the USA opens doors to diverse career pathways, often enhanced by complementary online degrees. For veterans considering further education, exploring best military friendly online spanish degrees can provide valuable language skills that boost communication in global environmental projects.

Those interested in creative aspects of Earth Science, like environmental storytelling or visual arts, might find pursuing an mfa online a fitting addition to their expertise. This can help convey scientific findings in engaging ways to the public or stakeholders.

On the management side, earning a human resource management masters degree online equips professionals with skills to effectively lead teams and navigate organizational challenges in environmental firms or agencies.

Moreover, education is accessible throughout life. Seniors interested in environmental studies can explore tailored options from the degrees for seniors list, ensuring learning remains a lifelong journey, no matter your age.

Best Scientists Citing John S. Armstrong-Altrin

Trending Scientists