Scimago Journal & Country Rank

GSA Todayopen access

Country United States  - SIR icon SIR Ranking of United States
73
H Index
Subject Area and CategoryEarth and Planetary Sciences
Geology
Publisher Geological Society of America
Publication typeJournals
ISSN10525173
Coverage1991-2020
Scope GSA's science and news magazine for members and the earth-science community world wide. Features a "hot-topic" science article most months.

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Quartiles

The set of journals have been ranked according to their SJR and divided into four equal groups, four quartiles. Q1 (green) comprises the quarter of the journals with the highest values, Q2 (yellow) the second highest values, Q3 (orange) the third highest values and Q4 (red) the lowest values.

CategoryYearQuartile
Geology1999Q1
Geology2000Q1
Geology2001Q1
Geology2002Q1
Geology2003Q1
Geology2004Q1
Geology2005Q1
Geology2006Q1
Geology2007Q1
Geology2008Q1
Geology2009Q1
Geology2010Q1
Geology2011Q1
Geology2012Q1
Geology2013Q1
Geology2014Q1
Geology2015Q1
Geology2016Q1
Geology2017Q2
Geology2018Q1
Geology2019Q1
SJR

The SJR is a size-independent prestige indicator that ranks journals by their 'average prestige per article'. It is based on the idea that 'all citations are not created equal'. SJR is a measure of scientific influence of journals that accounts for both the number of citations received by a journal and the importance or prestige of the journals where such citations come from It measures the scientific influence of the average article in a journal, it expresses how central to the global scientific discussion an average article of the journal is.

YearSJR
19995.510
20003.463
20012.988
20024.171
20034.066
20044.883
20053.733
20063.499
20073.518
20082.322
20092.108
20101.878
20112.114
20121.637
20132.148
20142.178
20151.379
20161.152
20170.845
20181.154
20191.883
Citations per document

This indicator counts the number of citations received by documents from a journal and divides them by the total number of documents published in that journal. The chart shows the evolution of the average number of times documents published in a journal in the past two, three and four years have been cited in the current year. The two years line is equivalent to journal impact factor ™ (Thomson Reuters) metric.

Cites per documentYearValue
Cites / Doc. (4 years)19994.822
Cites / Doc. (4 years)20003.516
Cites / Doc. (4 years)20014.169
Cites / Doc. (4 years)20024.179
Cites / Doc. (4 years)20035.000
Cites / Doc. (4 years)20046.128
Cites / Doc. (4 years)20055.833
Cites / Doc. (4 years)20065.352
Cites / Doc. (4 years)20074.869
Cites / Doc. (4 years)20083.349
Cites / Doc. (4 years)20093.744
Cites / Doc. (4 years)20103.543
Cites / Doc. (4 years)20112.769
Cites / Doc. (4 years)20123.436
Cites / Doc. (4 years)20133.377
Cites / Doc. (4 years)20143.662
Cites / Doc. (4 years)20153.592
Cites / Doc. (4 years)20163.527
Cites / Doc. (4 years)20172.486
Cites / Doc. (4 years)20183.274
Cites / Doc. (4 years)20193.877
Cites / Doc. (3 years)19994.822
Cites / Doc. (3 years)20004.255
Cites / Doc. (3 years)20013.465
Cites / Doc. (3 years)20024.262
Cites / Doc. (3 years)20035.081
Cites / Doc. (3 years)20045.686
Cites / Doc. (3 years)20054.927
Cites / Doc. (3 years)20065.262
Cites / Doc. (3 years)20074.451
Cites / Doc. (3 years)20082.875
Cites / Doc. (3 years)20093.188
Cites / Doc. (3 years)20103.438
Cites / Doc. (3 years)20113.407
Cites / Doc. (3 years)20123.150
Cites / Doc. (3 years)20133.685
Cites / Doc. (3 years)20143.893
Cites / Doc. (3 years)20153.263
Cites / Doc. (3 years)20163.000
Cites / Doc. (3 years)20172.519
Cites / Doc. (3 years)20183.189
Cites / Doc. (3 years)20194.708
Cites / Doc. (2 years)19995.667
Cites / Doc. (2 years)20003.258
Cites / Doc. (2 years)20013.103
Cites / Doc. (2 years)20025.000
Cites / Doc. (2 years)20034.880
Cites / Doc. (2 years)20045.955
Cites / Doc. (2 years)20054.103
Cites / Doc. (2 years)20064.500
Cites / Doc. (2 years)20074.094
Cites / Doc. (2 years)20082.235
Cites / Doc. (2 years)20092.660
Cites / Doc. (2 years)20104.780
Cites / Doc. (2 years)20112.610
Cites / Doc. (2 years)20123.189
Cites / Doc. (2 years)20133.694
Cites / Doc. (2 years)20143.216
Cites / Doc. (2 years)20152.250
Cites / Doc. (2 years)20163.000
Cites / Doc. (2 years)20172.375
Cites / Doc. (2 years)20183.861
Cites / Doc. (2 years)20194.909
Total Cites 
Self-Cites

Evolution of the total number of citations and journal's self-citations received by a journal's published documents during the three previous years.
Journal Self-citation is defined as the number of citation from a journal citing article to articles published by the same journal.

CitesYearValue
Self Cites19994
Self Cites20002
Self Cites20016
Self Cites20025
Self Cites20032
Self Cites20041
Self Cites20053
Self Cites20062
Self Cites20073
Self Cites20081
Self Cites20090
Self Cites20102
Self Cites20113
Self Cites20124
Self Cites20134
Self Cites201410
Self Cites20151
Self Cites20162
Self Cites20173
Self Cites20180
Self Cites20191
Total Cites1999217
Total Cites2000200
Total Cites2001149
Total Cites2002179
Total Cites2003188
Total Cites2004199
Total Cites2005202
Total Cites2006221
Total Cites2007227
Total Cites2008184
Total Cites2009220
Total Cites2010251
Total Cites2011201
Total Cites2012189
Total Cites2013199
Total Cites2014218
Total Cites2015186
Total Cites2016171
Total Cites2017131
Total Cites2018169
Total Cites2019226
External Cites per Doc 
Cites per Doc

Evolution of the number of total citation per document and external citation per document (i.e. journal self-citations removed) received by a journal's published documents during the three previous years. External citations are calculated by subtracting the number of self-citations from the total number of citations received by the journal’s documents.

CitesYearValue
External Cites per document19994.733
External Cites per document20004.213
External Cites per document20013.326
External Cites per document20024.143
External Cites per document20035.027
External Cites per document20045.657
External Cites per document20054.854
External Cites per document20065.214
External Cites per document20074.392
External Cites per document20082.859
External Cites per document20093.188
External Cites per document20103.411
External Cites per document20113.356
External Cites per document20123.083
External Cites per document20133.611
External Cites per document20143.714
External Cites per document20153.246
External Cites per document20162.965
External Cites per document20172.462
External Cites per document20183.189
External Cites per document20194.688
Cites per document19994.822
Cites per document20004.255
Cites per document20013.465
Cites per document20024.262
Cites per document20035.081
Cites per document20045.686
Cites per document20054.927
Cites per document20065.262
Cites per document20074.451
Cites per document20082.875
Cites per document20093.188
Cites per document20103.438
Cites per document20113.407
Cites per document20123.150
Cites per document20133.685
Cites per document20143.893
Cites per document20153.263
Cites per document20163.000
Cites per document20172.519
Cites per document20183.189
Cites per document20194.708
% International Collaboration

International Collaboration accounts for the articles that have been produced by researchers from several countries. The chart shows the ratio of a journal's documents signed by researchers from more than one country; that is including more than one country address.

YearInternational Collaboration
19995.88
200016.67
200138.46
200225.00
200330.00
200414.29
200518.18
200636.36
200726.83
200829.17
200914.71
201031.58
201113.04
201229.41
20138.00
201416.13
201535.00
201640.00
201723.08
201829.41
201937.50
Citable documents 
Non-citable documents

Not every article in a journal is considered primary research and therefore "citable", this chart shows the ratio of a journal's articles including substantial research (research articles, conference papers and reviews) in three year windows vs. those documents other than research articles, reviews and conference papers.

DocumentsYearValue
Non-citable documents19990
Non-citable documents20000
Non-citable documents20010
Non-citable documents20020
Non-citable documents20030
Non-citable documents20040
Non-citable documents20052
Non-citable documents200611
Non-citable documents200714
Non-citable documents200821
Non-citable documents200918
Non-citable documents201026
Non-citable documents201118
Non-citable documents201216
Non-citable documents20135
Non-citable documents20149
Non-citable documents201516
Non-citable documents201619
Non-citable documents201714
Non-citable documents20188
Non-citable documents201910
Citable documents199945
Citable documents200047
Citable documents200143
Citable documents200242
Citable documents200337
Citable documents200435
Citable documents200541
Citable documents200642
Citable documents200751
Citable documents200864
Citable documents200969
Citable documents201073
Citable documents201159
Citable documents201260
Citable documents201354
Citable documents201456
Citable documents201557
Citable documents201657
Citable documents201752
Citable documents201853
Citable documents201948
Cited documents 
Uncited documents

Ratio of a journal's items, grouped in three years windows, that have been cited at least once vs. those not cited during the following year.

DocumentsYearValue
Uncited documents199912
Uncited documents200011
Uncited documents200115
Uncited documents20029
Uncited documents20034
Uncited documents20043
Uncited documents200513
Uncited documents200628
Uncited documents200734
Uncited documents200856
Uncited documents200955
Uncited documents201064
Uncited documents201140
Uncited documents201239
Uncited documents201315
Uncited documents201424
Uncited documents201537
Uncited documents201639
Uncited documents201733
Uncited documents201826
Uncited documents201923
Cited documents199933
Cited documents200036
Cited documents200128
Cited documents200233
Cited documents200333
Cited documents200432
Cited documents200530
Cited documents200625
Cited documents200731
Cited documents200829
Cited documents200932
Cited documents201035
Cited documents201137
Cited documents201237
Cited documents201344
Cited documents201441
Cited documents201536
Cited documents201637
Cited documents201733
Cited documents201835
Cited documents201935
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