Scimago Journal & Country Rank

Geotimes

Country

United States

Universities and research institutions in United States
Media Ranking in United States

Subject Area and Category

Publisher

American Geological Institute

H-Index

14

Publication type

Journals

ISSN

00168556

Coverage

1979-1982, 1984-1985, 1992, 1994, 1997-2008

Scope

Information not localized Join the conversation about this journal
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
Total Documents

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

YearDocuments
199916
200031
200130
200261
200322
200456
2005231
2006174
2007211
2008188
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)19990.380
Cites / Doc. (4 years)20000.258
Cites / Doc. (4 years)20010.237
Cites / Doc. (4 years)20020.158
Cites / Doc. (4 years)20030.072
Cites / Doc. (4 years)20040.118
Cites / Doc. (4 years)20050.101
Cites / Doc. (4 years)20060.057
Cites / Doc. (4 years)20070.052
Cites / Doc. (4 years)20080.034
Cites / Doc. (3 years)19990.380
Cites / Doc. (3 years)20000.258
Cites / Doc. (3 years)20010.239
Cites / Doc. (3 years)20020.143
Cites / Doc. (3 years)20030.066
Cites / Doc. (3 years)20040.080
Cites / Doc. (3 years)20050.072
Cites / Doc. (3 years)20060.042
Cites / Doc. (3 years)20070.052
Cites / Doc. (3 years)20080.031
Cites / Doc. (2 years)19990.380
Cites / Doc. (2 years)20000.250
Cites / Doc. (2 years)20010.170
Cites / Doc. (2 years)20020.148
Cites / Doc. (2 years)20030.055
Cites / Doc. (2 years)20040.072
Cites / Doc. (2 years)20050.064
Cites / Doc. (2 years)20060.045
Cites / Doc. (2 years)20070.030
Cites / Doc. (2 years)20080.018
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 Cites19992
Self Cites20001
Self Cites20010
Self Cites20020
Self Cites20030
Self Cites20040
Self Cites20050
Self Cites20060
Self Cites20070
Self Cites20080
Total Cites199919
Total Cites200017
Total Cites200117
Total Cites200211
Total Cites20038
Total Cites20049
Total Cites200510
Total Cites200613
Total Cites200724
Total Cites200819
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 document19990.340
External Cites per document20000.242
External Cites per document20010.239
External Cites per document20020.143
External Cites per document20030.066
External Cites per document20040.080
External Cites per document20050.072
External Cites per document20060.042
External Cites per document20070.052
External Cites per document20080.031
Cites per document19990.380
Cites per document20000.258
Cites per document20010.239
Cites per document20020.143
Cites per document20030.066
Cites per document20040.080
Cites per document20050.072
Cites per document20060.042
Cites per document20070.052
Cites per document20080.031
% 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
19990.00
20000.00
20010.00
20020.00
20034.55
20041.79
20050.43
20060.57
20072.84
20081.06
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 documents19995
Non-citable documents20006
Non-citable documents20014
Non-citable documents200210
Non-citable documents20039
Non-citable documents20048
Non-citable documents200529
Non-citable documents2006217
Non-citable documents2007294
Non-citable documents2008348
Citable documents199945
Citable documents200060
Citable documents200167
Citable documents200267
Citable documents2003113
Citable documents2004105
Citable documents2005110
Citable documents200692
Citable documents2007167
Citable documents2008268
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 documents199936
Uncited documents200055
Uncited documents200162
Uncited documents200267
Uncited documents2003114
Uncited documents2004107
Uncited documents2005130
Uncited documents2006301
Uncited documents2007445
Uncited documents2008603
Cited documents199914
Cited documents200011
Cited documents20019
Cited documents200210
Cited documents20038
Cited documents20046
Cited documents20059
Cited documents20068
Cited documents200716
Cited documents200813
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