Geomicrobiology Journal

Geomicrobiology Journal is a unified vehicle for research and review articles in geomicrobiology and microbial biogeochemistry. One or two special issues devoted to specific geomicrobiological topics are published each year. General articles deal with microbial transformations of geologically important minerals and elements, including those that occur in marine and freshwater environments, soils, mineral deposits and rock formations, and the environmental biogeochemical impact of these transformations. In this context, the functions of Bacteria and Archaea, yeasts, filamentous fungi, micro-algae, protists, and their viruses as geochemical agents are examined. Articles may stress the nature of specific geologically important microorganisms and their activities, or the environmental and geological consequences of geomicrobiological activity. The Journal covers an array of topics such as: microbial weathering; microbial roles in the formation and degradation of specific minerals; mineralization of organic matter; petroleum microbiology; subsurface microbiology; biofilm form and function, and other interfacial phenomena of geological importance; biogeochemical cycling of elements; isotopic fractionation; paleomicrobiology. Applied topics such as bioleaching microbiology, geomicrobiological prospecting, and groundwater pollution microbiology are addressed. New methods and techniques applied in geomicrobiological studies are also considered.

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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.

Category	Year	Quartile
Earth and Planetary Sciences (miscellaneous)	1999	Q1
Earth and Planetary Sciences (miscellaneous)	2000	Q1
Earth and Planetary Sciences (miscellaneous)	2001	Q1
Earth and Planetary Sciences (miscellaneous)	2002	Q1
Earth and Planetary Sciences (miscellaneous)	2003	Q1
Earth and Planetary Sciences (miscellaneous)	2004	Q1
Earth and Planetary Sciences (miscellaneous)	2005	Q1
Earth and Planetary Sciences (miscellaneous)	2006	Q1
Earth and Planetary Sciences (miscellaneous)	2007	Q1
Earth and Planetary Sciences (miscellaneous)	2008	Q1
Earth and Planetary Sciences (miscellaneous)	2009	Q1
Earth and Planetary Sciences (miscellaneous)	2010	Q1
Earth and Planetary Sciences (miscellaneous)	2011	Q1
Earth and Planetary Sciences (miscellaneous)	2012	Q1
Earth and Planetary Sciences (miscellaneous)	2013	Q1
Earth and Planetary Sciences (miscellaneous)	2014	Q1
Earth and Planetary Sciences (miscellaneous)	2015	Q2
Earth and Planetary Sciences (miscellaneous)	2016	Q2
Earth and Planetary Sciences (miscellaneous)	2017	Q2
Earth and Planetary Sciences (miscellaneous)	2018	Q2
Earth and Planetary Sciences (miscellaneous)	2019	Q2
Earth and Planetary Sciences (miscellaneous)	2020	Q2
Earth and Planetary Sciences (miscellaneous)	2021	Q2
Earth and Planetary Sciences (miscellaneous)	2022	Q2
Earth and Planetary Sciences (miscellaneous)	2023	Q2
Environmental Chemistry	1999	Q2
Environmental Chemistry	2000	Q1
Environmental Chemistry	2001	Q1
Environmental Chemistry	2002	Q2
Environmental Chemistry	2003	Q2
Environmental Chemistry	2004	Q1
Environmental Chemistry	2005	Q1
Environmental Chemistry	2006	Q1
Environmental Chemistry	2007	Q2
Environmental Chemistry	2008	Q2
Environmental Chemistry	2009	Q2
Environmental Chemistry	2010	Q2
Environmental Chemistry	2011	Q2
Environmental Chemistry	2012	Q2
Environmental Chemistry	2013	Q2
Environmental Chemistry	2014	Q3
Environmental Chemistry	2015	Q3
Environmental Chemistry	2016	Q3
Environmental Chemistry	2017	Q3
Environmental Chemistry	2018	Q3
Environmental Chemistry	2019	Q3
Environmental Chemistry	2020	Q3
Environmental Chemistry	2021	Q3
Environmental Chemistry	2022	Q3
Environmental Chemistry	2023	Q3
Environmental Science (miscellaneous)	1999	Q1
Environmental Science (miscellaneous)	2000	Q1
Environmental Science (miscellaneous)	2001	Q1
Environmental Science (miscellaneous)	2002	Q1
Environmental Science (miscellaneous)	2003	Q1
Environmental Science (miscellaneous)	2004	Q1
Environmental Science (miscellaneous)	2005	Q1
Environmental Science (miscellaneous)	2006	Q1
Environmental Science (miscellaneous)	2007	Q1
Environmental Science (miscellaneous)	2008	Q1
Environmental Science (miscellaneous)	2009	Q1
Environmental Science (miscellaneous)	2010	Q1
Environmental Science (miscellaneous)	2011	Q1
Environmental Science (miscellaneous)	2012	Q1
Environmental Science (miscellaneous)	2013	Q1
Environmental Science (miscellaneous)	2014	Q2
Environmental Science (miscellaneous)	2015	Q2
Environmental Science (miscellaneous)	2016	Q2
Environmental Science (miscellaneous)	2017	Q2
Environmental Science (miscellaneous)	2018	Q2
Environmental Science (miscellaneous)	2019	Q2
Environmental Science (miscellaneous)	2020	Q2
Environmental Science (miscellaneous)	2021	Q2
Environmental Science (miscellaneous)	2022	Q2
Environmental Science (miscellaneous)	2023	Q2
Microbiology	1999	Q2
Microbiology	2000	Q2
Microbiology	2001	Q1
Microbiology	2002	Q2
Microbiology	2003	Q2
Microbiology	2004	Q1
Microbiology	2005	Q2
Microbiology	2006	Q2
Microbiology	2007	Q3
Microbiology	2008	Q3
Microbiology	2009	Q3
Microbiology	2010	Q3
Microbiology	2011	Q2
Microbiology	2012	Q2
Microbiology	2013	Q3
Microbiology	2014	Q3
Microbiology	2015	Q3
Microbiology	2016	Q3
Microbiology	2017	Q3
Microbiology	2018	Q3
Microbiology	2019	Q3
Microbiology	2020	Q3
Microbiology	2021	Q3
Microbiology	2022	Q3
Microbiology	2023	Q3

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.

Year	SJR
1999	0.842
2000	1.067
2001	1.351
2002	0.855
2003	0.955
2004	1.499
2005	1.192
2006	1.208
2007	0.725
2008	0.764
2009	0.715
2010	0.884
2011	0.966
2012	0.823
2013	0.846
2014	0.691
2015	0.604
2016	0.583
2017	0.475
2018	0.468
2019	0.569
2020	0.570
2021	0.516
2022	0.531
2023	0.529

Total Documents

Evolution of the number of published documents. All types of documents are considered, including citable and non citable documents.

Year	Documents
1999	25
2000	21
2001	25
2002	33
2003	40
2004	47
2005	34
2006	63
2007	55
2008	43
2009	62
2010	61
2011	64
2012	85
2013	89
2014	87
2015	90
2016	97
2017	89
2018	91
2019	91
2020	90
2021	85
2022	80
2023	85

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 document	Year	Value
Cites / Doc. (4 years)	1999	1.476
Cites / Doc. (4 years)	2000	2.075
Cites / Doc. (4 years)	2001	2.170
Cites / Doc. (4 years)	2002	2.168
Cites / Doc. (4 years)	2003	2.298
Cites / Doc. (4 years)	2004	2.664
Cites / Doc. (4 years)	2005	2.517
Cites / Doc. (4 years)	2006	2.987
Cites / Doc. (4 years)	2007	2.245
Cites / Doc. (4 years)	2008	2.161
Cites / Doc. (4 years)	2009	1.995
Cites / Doc. (4 years)	2010	1.870
Cites / Doc. (4 years)	2011	2.462
Cites / Doc. (4 years)	2012	2.139
Cites / Doc. (4 years)	2013	2.232
Cites / Doc. (4 years)	2014	1.876
Cites / Doc. (4 years)	2015	1.858
Cites / Doc. (4 years)	2016	1.670
Cites / Doc. (4 years)	2017	1.540
Cites / Doc. (4 years)	2018	1.829
Cites / Doc. (4 years)	2019	1.975
Cites / Doc. (4 years)	2020	2.370
Cites / Doc. (4 years)	2021	2.961
Cites / Doc. (4 years)	2022	2.849
Cites / Doc. (4 years)	2023	3.038
Cites / Doc. (3 years)	1999	1.476
Cites / Doc. (3 years)	2000	2.075
Cites / Doc. (3 years)	2001	2.200
Cites / Doc. (3 years)	2002	1.817
Cites / Doc. (3 years)	2003	2.405
Cites / Doc. (3 years)	2004	2.653
Cites / Doc. (3 years)	2005	2.508
Cites / Doc. (3 years)	2006	2.785
Cites / Doc. (3 years)	2007	1.972
Cites / Doc. (3 years)	2008	1.816
Cites / Doc. (3 years)	2009	1.720
Cites / Doc. (3 years)	2010	1.969
Cites / Doc. (3 years)	2011	2.054
Cites / Doc. (3 years)	2012	2.160
Cites / Doc. (3 years)	2013	2.086
Cites / Doc. (3 years)	2014	1.790
Cites / Doc. (3 years)	2015	1.705
Cites / Doc. (3 years)	2016	1.451
Cites / Doc. (3 years)	2017	1.485
Cites / Doc. (3 years)	2018	1.786
Cites / Doc. (3 years)	2019	2.105
Cites / Doc. (3 years)	2020	2.332
Cites / Doc. (3 years)	2021	2.765
Cites / Doc. (3 years)	2022	2.812
Cites / Doc. (3 years)	2023	2.929
Cites / Doc. (2 years)	1999	1.476
Cites / Doc. (2 years)	2000	1.980
Cites / Doc. (2 years)	2001	1.717
Cites / Doc. (2 years)	2002	1.804
Cites / Doc. (2 years)	2003	2.190
Cites / Doc. (2 years)	2004	2.548
Cites / Doc. (2 years)	2005	2.333
Cites / Doc. (2 years)	2006	2.247
Cites / Doc. (2 years)	2007	1.588
Cites / Doc. (2 years)	2008	1.381
Cites / Doc. (2 years)	2009	1.673
Cites / Doc. (2 years)	2010	1.695
Cites / Doc. (2 years)	2011	2.033
Cites / Doc. (2 years)	2012	1.928
Cites / Doc. (2 years)	2013	1.872
Cites / Doc. (2 years)	2014	1.534
Cites / Doc. (2 years)	2015	1.597
Cites / Doc. (2 years)	2016	1.367
Cites / Doc. (2 years)	2017	1.358
Cites / Doc. (2 years)	2018	1.801
Cites / Doc. (2 years)	2019	2.161
Cites / Doc. (2 years)	2020	2.148
Cites / Doc. (2 years)	2021	2.630
Cites / Doc. (2 years)	2022	2.560
Cites / Doc. (2 years)	2023	2.673

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.

Cites	Year	Value
Self Cites	1999	1
Self Cites	2000	11
Self Cites	2001	23
Self Cites	2002	8
Self Cites	2003	9
Self Cites	2004	30
Self Cites	2005	21
Self Cites	2006	29
Self Cites	2007	25
Self Cites	2008	18
Self Cites	2009	20
Self Cites	2010	22
Self Cites	2011	28
Self Cites	2012	45
Self Cites	2013	28
Self Cites	2014	44
Self Cites	2015	30
Self Cites	2016	33
Self Cites	2017	37
Self Cites	2018	28
Self Cites	2019	48
Self Cites	2020	38
Self Cites	2021	53
Self Cites	2022	52
Self Cites	2023	61
Total Cites	1999	62
Total Cites	2000	139
Total Cites	2001	154
Total Cites	2002	129
Total Cites	2003	190
Total Cites	2004	260
Total Cites	2005	301
Total Cites	2006	337
Total Cites	2007	284
Total Cites	2008	276
Total Cites	2009	277
Total Cites	2010	315
Total Cites	2011	341
Total Cites	2012	404
Total Cites	2013	438
Total Cites	2014	426
Total Cites	2015	445
Total Cites	2016	386
Total Cites	2017	407
Total Cites	2018	493
Total Cites	2019	583
Total Cites	2020	632
Total Cites	2021	752
Total Cites	2022	748
Total Cites	2023	747

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.

Cites	Year	Value
External Cites per document	1999	1.452
External Cites per document	2000	1.910
External Cites per document	2001	1.871
External Cites per document	2002	1.704
External Cites per document	2003	2.291
External Cites per document	2004	2.347
External Cites per document	2005	2.333
External Cites per document	2006	2.545
External Cites per document	2007	1.799
External Cites per document	2008	1.697
External Cites per document	2009	1.596
External Cites per document	2010	1.831
External Cites per document	2011	1.886
External Cites per document	2012	1.920
External Cites per document	2013	1.952
External Cites per document	2014	1.605
External Cites per document	2015	1.590
External Cites per document	2016	1.327
External Cites per document	2017	1.350
External Cites per document	2018	1.685
External Cites per document	2019	1.931
External Cites per document	2020	2.192
External Cites per document	2021	2.570
External Cites per document	2022	2.617
External Cites per document	2023	2.690
Cites per document	1999	1.476
Cites per document	2000	2.075
Cites per document	2001	2.200
Cites per document	2002	1.817
Cites per document	2003	2.405
Cites per document	2004	2.653
Cites per document	2005	2.508
Cites per document	2006	2.785
Cites per document	2007	1.972
Cites per document	2008	1.816
Cites per document	2009	1.720
Cites per document	2010	1.969
Cites per document	2011	2.054
Cites per document	2012	2.160
Cites per document	2013	2.086
Cites per document	2014	1.790
Cites per document	2015	1.705
Cites per document	2016	1.451
Cites per document	2017	1.485
Cites per document	2018	1.786
Cites per document	2019	2.105
Cites per document	2020	2.332
Cites per document	2021	2.765
Cites per document	2022	2.812
Cites per document	2023	2.929

% 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.

Year	International Collaboration
1999	36.00
2000	33.33
2001	16.00
2002	9.09
2003	17.50
2004	21.28
2005	29.41
2006	34.92
2007	34.55
2008	39.53
2009	30.65
2010	37.70
2011	35.94
2012	30.59
2013	24.72
2014	28.74
2015	23.33
2016	32.99
2017	26.97
2018	24.18
2019	26.37
2020	33.33
2021	25.88
2022	21.25
2023	16.47

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.

Documents	Year	Value
Non-citable documents	1999	1
Non-citable documents	2000	1
Non-citable documents	2001	1
Non-citable documents	2002	1
Non-citable documents	2003	3
Non-citable documents	2004	5
Non-citable documents	2005	5
Non-citable documents	2006	4
Non-citable documents	2007	3
Non-citable documents	2008	4
Non-citable documents	2009	3
Non-citable documents	2010	6
Non-citable documents	2011	6
Non-citable documents	2012	8
Non-citable documents	2013	5
Non-citable documents	2014	4
Non-citable documents	2015	3
Non-citable documents	2016	4
Non-citable documents	2017	4
Non-citable documents	2018	4
Non-citable documents	2019	2
Non-citable documents	2020	1
Non-citable documents	2021	0
Non-citable documents	2022	0
Non-citable documents	2023	1
Citable documents	1999	41
Citable documents	2000	66
Citable documents	2001	69
Citable documents	2002	70
Citable documents	2003	76
Citable documents	2004	93
Citable documents	2005	115
Citable documents	2006	117
Citable documents	2007	141
Citable documents	2008	148
Citable documents	2009	158
Citable documents	2010	154
Citable documents	2011	160
Citable documents	2012	179
Citable documents	2013	205
Citable documents	2014	234
Citable documents	2015	258
Citable documents	2016	262
Citable documents	2017	270
Citable documents	2018	272
Citable documents	2019	275
Citable documents	2020	270
Citable documents	2021	272
Citable documents	2022	266
Citable documents	2023	254

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.

Documents	Year	Value
Uncited documents	1999	18
Uncited documents	2000	17
Uncited documents	2001	15
Uncited documents	2002	23
Uncited documents	2003	26
Uncited documents	2004	24
Uncited documents	2005	40
Uncited documents	2006	20
Uncited documents	2007	48
Uncited documents	2008	44
Uncited documents	2009	58
Uncited documents	2010	49
Uncited documents	2011	45
Uncited documents	2012	56
Uncited documents	2013	58
Uncited documents	2014	72
Uncited documents	2015	77
Uncited documents	2016	95
Uncited documents	2017	96
Uncited documents	2018	74
Uncited documents	2019	57
Uncited documents	2020	57
Uncited documents	2021	55
Uncited documents	2022	56
Uncited documents	2023	57
Cited documents	1999	24
Cited documents	2000	50
Cited documents	2001	55
Cited documents	2002	48
Cited documents	2003	53
Cited documents	2004	74
Cited documents	2005	80
Cited documents	2006	101
Cited documents	2007	96
Cited documents	2008	108
Cited documents	2009	103
Cited documents	2010	111
Cited documents	2011	121
Cited documents	2012	131
Cited documents	2013	152
Cited documents	2014	166
Cited documents	2015	184
Cited documents	2016	171
Cited documents	2017	178
Cited documents	2018	202
Cited documents	2019	220
Cited documents	2020	214
Cited documents	2021	217
Cited documents	2022	210
Cited documents	2023	198