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Sandra M. Barr

Sandra M. Barr

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Earth Science 45 4477 4117 205 186 357 7272

Sandra M. Barr publications per year

The chart shows the history of publications by Sandra M. Barr between 1971 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Sandra M. Barr published across 55 years, from 1971 to 2025, averaging 6.8 papers a year. Output peaked at 18 publications in 2012. 21 of the 374 publications appeared in the last two years.

No. of publications
5 10 15
Bar chart. Horizontal axis: year, 1971 to 2025. Vertical axis: number of publications, 0 to 18. Peak 18 publications in 2012. 1971: 1 publication 1972: 2 publications 1973: 1 publication 1974: 3 publications 1975: 1 publication 1976: 0 publications 1977: 0 publications 1978: 2 publications 1979: 2 publications 1980: 0 publications 1981: 3 publications 1982: 3 publications 1983: 3 publications 1984: 3 publications 1985: 4 publications 1986: 11 publications 1987: 5 publications 1988: 8 publications 1989: 6 publications 1990: 11 publications 1991: 6 publications 1992: 7 publications 1993: 9 publications 1994: 8 publications 1995: 5 publications 1996: 8 publications 1997: 3 publications 1998: 11 publications 1999: 5 publications 2000: 8 publications 2001: 6 publications 2002: 9 publications 2003: 7 publications 2004: 4 publications 2005: 7 publications 2006: 10 publications 2007: 11 publications 2008: 11 publications 2009: 13 publications 2010: 11 publications 2011: 6 publications 2012: 18 publications 2013: 9 publications 2014: 7 publications 2015: 3 publications 2016: 5 publications 2017: 9 publications 2018: 11 publications 2019: 12 publications 2020: 10 publications 2021: 10 publications 2022: 13 publications 2023: 12 publications 2024: 12 publications 2025: 9 publications
1971 2025

374 publications in total across all disciplines

View publications per year as a table
Sandra M. Barr: publications per year, 1971 to 2025
Year Publications
1971 1
1972 2
1973 1
1974 3
1975 1
1976 0
1977 0
1978 2
1979 2
1980 0
1981 3
1982 3
1983 3
1984 3
1985 4
1986 11
1987 5
1988 8
1989 6
1990 11
1991 6
1992 7
1993 9
1994 8
1995 5
1996 8
1997 3
1998 11
1999 5
2000 8
2001 6
2002 9
2003 7
2004 4
2005 7
2006 10
2007 11
2008 11
2009 13
2010 11
2011 6
2012 18
2013 9
2014 7
2015 3
2016 5
2017 9
2018 11
2019 12
2020 10
2021 10
2022 13
2023 12
2024 12
2025 9
Total 374
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Sandra M. Barr 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 Sandra M. Barr 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, 348–357 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: 357 publications — 92nd percentile

92% 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
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 87 357
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
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Sandra M. Barr 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 Sandra M. Barr 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, 45 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: 45 D-Index — 53rd percentile

53% 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 45
46 212
47 202
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
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Overview

Sandra M. Barr is affiliated with Acadia University in Canada and has a substantial body of work primarily within Earth and Planetary Sciences. Their research spans multiple subfields including Geophysics, Paleontology, Artificial Intelligence, Atmospheric Science, and Earth-Surface Processes.

The topics addressed in their work cover a range of geological and geochemical studies such as:

  • Geological and Geochemical Analysis
  • Geochemistry and Geologic Mapping
  • Paleontology and Stratigraphy of Fossils
  • Geology and Paleoclimatology Research
  • Earthquake and Tectonic Studies
  • High-Pressure Geophysics and Materials
  • Geological Formations and Processes

Their recent publications include the following papers:

  • Provenance and Paleozoic tectonic evolution of Ganderia and its relationships with Avalonia and Megumia in the Appalachian-Caledonide orogen, 2021, published in Gondwana Research
  • Tonian-Ediacaran tectonomagmatic evolution of West Avalonia and its Ediacaran-early Cambrian interactions with Ganderia: an example of complex terrane transfer due to arc-arc collision?, 2020, published in Geological Society London Special Publications
  • Terrane history of the Iapetus Ocean as preserved in the northern Appalachians and western Caledonides, 2022, published in Earth-Science Reviews
  • Age and tectonic setting of Neoproterozoic granitoid rocks, Antigonish Highlands, Nova Scotia, Canada: implications for Avalonia in the northern Appalachian orogen, 2020, published in Canadian Journal of Earth Sciences
  • Unconformity-bounded rift sequences in Terreneuvian-Miaolingian strata of the Caledonian Highlands, Atlantic Canada, 2022, published in Geological Society of America Bulletin

Frequent co-authors collaborating with Sandra M. Barr include:

  • Chris E. White
  • Deanne van Rooyen
  • John W.F. Waldron
  • David I. Schofield
  • P. J. A. McCausland

Their publications appear regularly in several academic venues, such as:

  • Abstracts with programs - Geological Society of America
  • Canadian Journal of Earth Sciences
  • Atlantic Geoscience
  • Atlantic Geology
  • Geological Society London Special Publications

Best Publications

  • Provenance and tectonic evolution of Ganderia: Constraints on the evolution of the Iapetus and Rheic oceans

    Cees R. van Staal;Sandra M. Barr;J. Brendan Murphy

  • Geochemistry and geochronology of late Cenozoic basalts of Southeast Asia: Summary

    Sandra M. Barr;Alan S. Macdonald

  • Depositional and tectonic setting of the Paleoproterozoic Lower Aillik Group, Makkovik Province, Canada: evolution of a passive margin-foredeep sequence based on petrochemistry and U–Pb (TIMS and LAM-ICP-MS) geochronology

    John W.F. Ketchum;Simon E. Jackson;Nicholas G. Culshaw;Sandra M. Barr

  • Zircon and monazite UPb dating of the Doi Inthanon core complex, northern Thailand: implications for extension within the Indosinian Orogen

    G.R. Dunning;A.S. Macdonald;S.M. Barr

  • Nan River suture zone, northern Thailand

    Sandra M. Barr;Alan S. Macdonald

  • Late Paleozoic strike‐slip faults in Maritime Canada and their role in the reconfiguration of the northern Appalachian orogen

    John W. F. Waldron;Sandra M. Barr;Adrian F. Park;Chris E. White

  • Provenance of the Meguma terrane, Nova Scotia: rifted margin of early Paleozoic Gondwana

    John W.F. WaldronJ.W.F. Waldron;Chris E. WhiteC.E. White;Sandra M. BarrS.M. Barr;Antonio SimonettiA. Simonetti

  • Tectono-stratigraphic terranes in Cape Breton Island, Nova Scotia: Implications for the configuration of the northern Appalachian orogen

    Sandra M. Barr;Robert P. Raeside

  • Geochemical and Isotopic Characteristics of Granitoids of the Avalon Zone, Southern New Brunswick: Possible Evidence for Repeated Delamination Events

    Joseph B. Whalen;George A. Jenner;Kenneth L. Currie;Sandra M. Barr

  • Significance of U–Pb detrital zircon ages in quartzite from peri-Gondwanan terranes, New Brunswick and Nova Scotia, Canada

    S.M Barr;D.W Davis;S Kamo;C.E White

  • Chronology of Devonian to early Carboniferous rifting and igneous activity in southern Magdalen Basin based on U–Pb (zircon) dating

    Greg R. Dunning;Sandra M. Barr;Peter S. Giles;D. Colin McGregor

  • Nd isotopic characteristics of terranes within the Avalon Zone, southern New Brunswick

    Scott D. Samson;Sandra M. Barr;Chris E. White

  • Petrochemistry, U–Pb (zircon) age, and palaeotectonic setting of the Lampang volcanic belt, northern Thailand

    S. M. Barr;A. S. Macdonald;G. R. Dunning;P. Ounchanum

  • The Kingston terrane, southern New Brunswick, Canada: Evidence for an Early Silurian volcanic arc

    Sandra M. Barr;Chris E. White;Brent V. Miller

  • U–Pb geochronologic constraints on the volcanic evolution of the Mira (Avalon) terrane, southeastern Cape Breton Island, Nova Scotia

    Mary Lou Bevier;Sandra M. Barr;Chris E. White;Alan S. Macdonald

  • Detrital zircon ages from Neoproterozoic and Early Paleozoic conglomerate and sandstone units of New Brunswick and coastal Maine: implications for the tectonic evolution of Ganderia

    Leslie Robert Fyffe;Sandra M. Barr;Susan C. Johnson;Malcolm J. McLeod

  • Cambrian successions of the Meguma Terrane, Nova Scotia, and Harlech Dome, North Wales: dispersed fragments of a peri-Gondwanan basin?

    John W.F. Waldron;David I. Schofield;Chris E. White;Sandra M. Barr

  • Origin and evolution of Avalonia: evidence from U–Pb and Lu–Hf isotopes in zircon from the Mira terrane, Canada, and the Stavelot–Venn Massif, Belgium

    A. P. Willner;A. P. Willner;S. M. Barr;A. Gerdes;A. Gerdes;H.-J. Massonne

  • Geological correlations between Cape Breton Island and Newfoundland, northern Appalachian orogen

    S M Barr;R P Raeside;C E White

  • U-Pb Age Constraints on the Stratigraphy and Tectonic History of the Avalon Terrane, New Brunswick, Canada

    Mary Lou Bevier;Sandra M. Barr

Frequent Co-Authors

Michael A. Hamilton
Michael A. Hamilton University of Toronto
John W.F. Waldron
John W.F. Waldron University of Alberta
Søren Holdt Jensen
Søren Holdt Jensen University of Extremadura
Fred J. Longstaffe
Fred J. Longstaffe University of Western Ontario
Rebecca Anne Jamieson
Rebecca Anne Jamieson Dalhousie University
Arne P. Willner
Arne P. Willner Ruhr University Bochum
Cees R. van Staal
Cees R. van Staal Geological Survey of Canada
Greg R. Dunning
Greg R. Dunning Memorial University of Newfoundland
Scott D. Samson
Scott D. Samson Syracuse University
James K. Mortensen
James K. Mortensen University of British Columbia

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