Plagiarism Screening
Manuscripts submitted to Indonesian Journal of Earth Sciences will be screened for plagiarism and self-plagiarism using TURNITIN, Plagiarism Checker X, and Google-based search engines. Depending on the level of originality and similarities with other documents, the managing editor will decide on whether to immediately reject the manuscripts, contact authors for further clarifications or to proceed to the peer-review process.
Definition
Plagiarism is the use of another person's words, data, ideas, figures, or results without appropriate attribution. Self-plagiarism (text recycling) is the reuse of the authors' own published or submitted work without citation and, where needed, permission. Both are breaches of the Publication Ethics of the journal.
Identification
The editorial office checks every manuscript before peer review and records the similarity report in the editorial file. The matches are examined by an editor, because the similarity index alone is not evidence of plagiarism: quotations, references, standard methodological phrases, and the authors' own preprint or thesis (when declared) are assessed in context.
Classification and Action at Submission
| Class | Indicator | Action |
|---|---|---|
| Acceptable | Overall similarity of 15% or less, no single source above 5%, and no copied passages without attribution | The manuscript proceeds to peer review. |
| Minor | Overall similarity of 16-25%, or a single source of 6-10%, or limited uncited overlap in the text | The manuscript is returned to the authors to rewrite and cite the overlapping passages, and is screened again. |
| Serious | Overall similarity above 25%, or a single source above 10%, or verbatim copying of substantial text, data, or figures without attribution, or duplicate submission or publication | The manuscript is rejected. The authors are informed in writing, and the editors may notify the authors' institution. |
Similarity percentages are calculated by the screening software and exclude the reference list and quoted text. They are indicators for the editor's judgement, not automatic rules.
Plagiarism Found During Review or After Publication
- Reviewers and readers who suspect plagiarism or duplicate publication should report it to the editor through the Contact page.
- For a manuscript under review, the editors follow the classification above and the COPE flowcharts on suspected plagiarism in a submitted manuscript.
- For a published article, the editors ask the authors to respond and then decide on a correction, an expression of concern, or retraction, following the COPE flowcharts on suspected plagiarism in a published article. Retracted articles remain online, marked as retracted.
- Serious cases may lead to a submission ban and notification of the authors' institution, as described under Allegations of Research Misconduct in the Publication Ethics statement.
Authors must state any overlap with their own earlier work, such as a thesis, a dissertation, a preprint, or a conference paper, in the cover letter and cite it in the manuscript.
