Geological Bulletin of Turkey (Geol. Bu. Turkey) accepts articles about earth science topics apart from engineering geology. Primary topics include geology, tectonics, structural geology, geochronology, geochemistry, sedimentology, biostratigraphy, paleontology, mineralogy, magmatic and metamorphic petrology, mineral deposits, geophysics and geomorphology, in addition to medical geology, Precious & Semi-Precious Stones, environmental and urban geology along with economic geology. Articles are accepted in both Turkish and English at current scientific levels in relation to these topics.
Articles include primarily Turkey and surroundings, eastern Mediterranean, Middle East, Balkans, Black Sea and Caspian Sea areas, along with ranked articles from all other critical regions of the world.
Articles including results with high scientific level from research completed within this scope are published without any fee. The journal is open access. The target audience for the journal is all earth scientists interested in these topics and this scope.
The journal includes mainly original research articles and lower numbers of reviews and publications with other scientific qualities. Select sessions at the Geological Congress of Turkey and other national and international meetings may later be published as special issues after reviewed publication processes.

The language of the Geological Bulletin of Turkey is both Turkish and English. For manuscripts submitted in English “Genişletilmiş Özet”, for manuscripts submitted in Turkish “Extended Summary” should be given. If the native language of the author(s) is not Turkish, the article can be published entirely in English. It is strongly recommended that authors whose native language is not English, should ask a person whose native language is English to check the grammar and style of manuscript before submission. Paper should be original and comprise previously unpublished research, interpretations, or synthesis of two, or technical notes. Submission implies that the manuscript is not currently under consideration for publication elsewhere.

All manuscripts must be submitted electronically via the Internet to the Geological Bulletin of Turkey through the online system DergiPark at https://dergipark.org.tr/tjb. There are no page charges. Papers are accepted for publication on the understanding that they have not been published and are not going to be considered for publication elsewhere. Authors should certify that neither the manuscript nor its main contents have already been published or submitted for publication in another journal. The copyright release form, which can be found at https://dergipark.org.tr/tjb, or www.jmo.org.tr must be signed by the corresponding author on behalf of all authors and must accompany all papers submitted. After a manuscript has been submitted, it is not possible for authors to be added or removed or for the order of authors to be changed. Manuscripts may be rejected without peer review by the editor-in-chief if they do not comply with the instructions for authors or if they are beyond the scope of the journal. After a manuscript has been accepted for publication, i.e. after referee-recommended revisions are complete, the author will not be permitted to make changes that constitute departures from the manuscript that was accepted by the editor. Before publication, the galley proofs are always sent to the authors for corrections. The use of someone else’s ideas or words in their original form or changed without a proper citation is considered plagiarism and will not be tolerated.

(a) Title (English and Turkish)

(b) Names of authors (bold and in capital), their affiliations (italic and lower-case) and the name and e-mail address of the corresponding author.

(c) Abstract (English and Turkish)

(d) Key words (English and Turkish)

(e) Introduction (aim, content and methodology)

(f) Main text (methods, material studied, descriptions, analyses etc.)

(g) Results and Discussion or Conclusions and Recommendations

(h) Extended Summary / Genişletilmiş Özet

(i) Acknowledgements (if necessary)

(j) References

(k) Tables

(l) List of figure captions

(m) Figures

(n) Plates (if any)

The various levels of headings used in the manuscript should be clearly differentiated. All headings should be in left-aligned. Major headings should be bold capitals. Secondary headings should be considered as sub-headings. Primary- and secondary-subheadings should be given in lower-case and tertiary headings in italics. Headings should not be preceded by numerals or letters. Manuscripts (abstract, main text, acknowledgements, references, appendices and figure captions) should be typed on A4 page size (29.7 cm x 21 cm) with wide margins (at least 2.5 cm) and 1.5 line-spaced throughout, at a font size of 12 point (Times New Roman) and with all pages and lines numbered.

Examples for headings:

A cover page, separate from the main manuscript, must include the followings:

a. Title of the paper

b. Name(s) of author(s) (full forenames should be given)

c. Full postal and e-mail addresses of all authors (the corresponding author should be indicated). Phone number for the corresponding author should also be provided.

The title of the paper should unambiguously reflect its content. If the paper is written in Turkish, the Turkish title (in bold-face type and first letter of the words capital) should be followed by the English title (italic and first letter of the words capital). If the paper is in English, the English title should appear before the Turkish title in the style mentioned above. Authors should provide their Orcid ID which can be obtained from orcid.org website.

The information related with authors should be given as follow:

Ahmet Ahmetoğlu

Ankara University, Engineering Faculty, Geological Engineering Department Tandoğan 06100 Ankara

e-mail: a_ahmetoğlu@ankara.edu.tr

ORCID Number: 0000-0001-1458-0820

A. Hüsnü Hüsnüoğlu MTA Genel Müdürlüğü, Jeolojik Etüdler Dairesi, 06520 Ankara

e-mail: husnu56@mta.gov.tr

ORCID Numarası: 0000-0001-1462-0830

The abstract not exceeding 300 words should be informative (aim of the study and main conclusive remarks). It should not contain references. The Abstract should be given in both Turkish and English. If the paper is written in Turkish, an English abstract (in italics) should follow the Turkish abstract, while a Turkish abstract (in italics) should appear after the English abstract in papers written in English.

The abstract should include minimum 2, and not more than 7 key words which reflect the entries the authors would like to see in an index. Key words should be given in both Turkish and English. Key words should be written in lower-case letters, separated by commas, and given in alphabetical order. For Technical Notes and Discussions, key words should not be provided.

The extended summary should not exceed 2500 words. But it must be more bulky than abstract. The new figure or table should not be given. But reference can be given to figures and tables present in main text.

Acknowledgements should be brief and confined to persons and organizations that have made significant contributions. Please use full names without titles and indicate name(s) of the organization(s) of the person(s) acknowledged.

Parenthetical citations: (Author, Year) e.g.: (Sönmez, 1996)

Narrative citations: Author (Year) e.g.: Sönmez (1996)

Parenthetical citations: (Author1 & Author2, Year) e.g.: (Merriman & Frey, 1999)

Narrative citations: Author1 and Author2 (Year) e.g.:Merriman and Frey (1999)

Parenthetical citations: (Author1 et al., Year) e.g.: (Pettijohn et al., 1987)

Narrative citations: Author1 et al. (Year) e.g.: Pettijohn et al., (1987)

Parenthetical citations: (Merriman & Frey, 1999; Pettijohn et al., 1987; Sönmez, 1996)

Narrative citations: Merriman and Frey (1999), Pettijohn et al. (1987), Sönmez (1996)

In this case, letters such as a, b, c are given after the years of the articles in the References section. In the same way, these letters are used in the citations in the text.

In References:

Ahmetoğlu, A. & Hüsnüoğlu, H. (2022a). Article 1. Full Name of Journal, Vol.(No), pages. DOI number (if available)

Ahmetoğlu, A. & Hüsnüoğlu, H. (2022b). Article 2. Full Name of Journal, Vol.(No), pages. DOI number (if available)

Citations in the text:

Parenthetical citations: (Ahmetoğlu & Hüsnüoğlu, 2022a)

Narrative citations: Ahmetoğlu & Hüsnüoğlu (2022a)

All references cited in the text, and in captions of figures and tables should be presented in a list of references under a heading of ‘’REFERENCES’’ following the text of the manuscript.

A.1. Citing the periodicals:

Author(s), (Date). Title of paper. Full Name of Journal, Vol.(No), pages. DOI number (if available)

Hoek, E. & David, M. (1990). Estimating Mohr – Coulomb friction and cohesion values from Hoek – Brown failure criterion. International Journal of Rock Mechanics, 27(3), 220-229. https://doi.org/10.1016/0148-9062(90)94333-O

A.2. Special cases:

A.2.1. If the article was taken from an open (free) access website:

Ketin, İ. (1949). Son on yılda Türkiyeꞌde vukua gelen büyük depremlerin tektonik ve mekanik neticeleri hakkında. Türkiye Jeoloji Bülteni, 2(1), 1-13. https://dergipark.org.tr/tr/pub/tjb/issue/50279/650044

A.2.2. If the article has an article number:

Açlan, M., Oyan, V. & Köse, O. (2020). Petrogenesis and the evolution of Pliocene Timar basalts in the east of Lake Van, Eastern Anatolia, Turkey: A consequence of the partial melting of a metasomatized spinel–rich lithospheric mantle source. Journal of African Earth Sciences, 168, Article 103844. https://doi.org/10.1016/j.jafrearsci.2020.103844.

Author(s), (Date). Title of paper. Name of Editor(s), Title of Symposium or Congress, (pages). Name of Publisher. DOI number & internet address (If available).

Şanlıyüksel Yücel, D., İleri, B. (2019). Characterization of weak, strafied and clay bearing rock masses. In H. Sözbilir, Ç. Özkaymak, B. Uzel, Ö. Sümer, M. Softa, Ç. Tepe, S. Eski (Eds.), 72nd Geological Congress of Turkey The Proceedings and Abstracts Book, (s.63-64). Chamber of Geological Engineers of Turkey Publications No: 140. https://www.jmo.org.tr/resimler/ekler/174e0f6fa731893_ek.pdf

C.1. Citing of books:

Author(s), (Date). Name of the Book. Name of the Publisher. DOI number & internet address (if available).

Pettijohn, F. J., Potter, P. E. & Siever, R. (1987). Sand and Sandstones (2nd ed.). Springer-Verlag New York. https://www.doi.org/10.1007/978-1-4612-1066-5

Ketin, İ. (2016). Genel Jeoloji, Yerbilimlerine Giriş (9. Baskı). İTÜ Vakfı Yayınları.

C.2. Citing of translated books:

Author(s), (Date). Name of the Translated Book. Name of the Publisher. (Original publishing date). DOI number & internet address (If available).

Komatina, M. M. (2011). Tıbbi Jeoloji: Jeolojik Ortamların İnsan Sağlığı Üzerindeki Etkileri (Translator: Y. Örgün ve D. Bayrak). TMMOB Jeoloji Mühendisleri Odası (Original publication date: 2001).

Author(s), (Date). Chapter Name. Name of Editors, Name of Book (Page numbers of the chapter). Name of Publisher.

Merriman, R. J. & Frey, M. (1999). Patterns of very low-grade metamorphism in metapelitic rocks. In M. Frey & D. Robinson (Eds.), Low Grade Metamorphism, (pp. 61-107). Blackwell Sciences Ltd.

E.1. Reports:

Author(s), (Date). Title of report (If any report no). Name of the Organization or Institution, (published or unpublished).

Kellogg, H. E. (1960). Stratigraphic report, Derik-Mardin area Petroleum District V, Southeast Turkey (Rapor no: 1367). TPAO (unpublished).

E.2. Thesis:

Author, (Date). Title of Thesis [published or unpublished & PhD or Msc Thesis]. Name of the Institution or University.

Sönmez, H. (1996). TKİ ELİ Soma Linyitleri açık işletmelerinde eklemli kaya kütlesi içindeki şevlerin duraylılığının değerlendirilmesi [Unpublished Msc Thesis]. Hacettepe Üniversitesi Fen Bilimleri Enstitüsü.

Sözbilir, H., 2005. Personal communication. Geological Engineering Department of Dokuz Eylül University, İzmir, Turkey.

Name of the Organization, (Date). Web address, date of access to website.

KRDAE, (2020, 02, January). Boğaziçi University Kandilli Observatory and Earthquake Research Institute Regional Earthquake-Tsunami Monitoring Center, http://www.gov.tr.

Turkish references can also be given directly in Turkish. For such references please use Turkish characters.

Mathematical symbols and formulae should be typed. Equation numbers should appear in parentheses at the right-hand side of the equations and be numbered consecutively. For Greek or other non-Roman letters, identify the symbol in words in the left-hand margin just below the equation the first time it is used. In addition, the meaning of symbols used in equations should be given below the equations.

Subscripts and superscripts should be given clearly and written in smaller character (e.g. Id, x2). Instead of square-root symbol, an indice of 0.5 sholud be used (e.g. y=5x 0.5). For the of multiplication sign do not use any symbol, however if necessary, the symbol ‘’*’’ can be preferred (e.g. y=5*10-3). Please use ‘’/’’ for division instead of a horizontal line between numerator and denominator. In the expression of chemical reactions, ions should be given as Ca(2+) and CO3(2-) instead of Ca++ and CO3--. In the text, equations should be referred to as equation (1). Computer program listings, if appropriate, must be very clear in an Appendix.

Tables with their titles should not exceed the printed area of the page (15.8 cm (wide) x 22.5 cm (deep)) and be numbered consecutively. Both Turkish and English titles should appearat the top of a table (do not print table captions on a separate sheet). If the manuscript is written in Turkish, English title in italics should follow the Turkish title. For manuscripts in English, a Turkish title should appear below the English title in italics. They should begin “Table 1.” etc. Tables should be referred to as Table 1 or Tables 1and 2 (if more than one table is referred to). Tables can be written in a font size smaller than that of the text (10 or 11 point). Tables should be arranged to fit single column (7.3 cm wide) or double column (15.8 cm wide). No vertical rules should be used. Horizontal rules should only be used at the top and bottom of the tables, and to separate headings and numbers listed in the tables (Please check the previous issues of the Journal). Tables should not duplicate results presented elsewhere in manuscript (e.g. in graphs). Each table should be separately printed and appear after the text (after references). All abbreviations and symbols must be identified with smaller character underneath the tables (e.g. c: uniaxial compressive strength, etc).

All illustrations, whether diagrams, charts and photographs, should be of high quality, referred to as “Figures” and be numbered consecutively as they appear in the text. They must be originals. The number of the figure should be given at top on the right-hand side of the paper. Illustrations should be provided in camera-ready form, suitable for reproduction (which may include reduction) without retouching. Figure captions should be supplied on a separate sheet and should begin “Figure 1.” etc. As with the rules given for tables, figure captions should also be given both in Turkish and English. All illustrations should be given with a list of figure captions. The maximum printed size of illustrations is 15.8 cm (wide) x 22.5 cm (deep) together with figure captions. It is recommended that all illustrations should be designed with the Journal’s single-column or two-column layout in mind, and where possible, illustrations should be designed for a single column. Illustrations, particularly maps, field sketches and photographs should have a metric bar scale rather than magnification factors. All maps should have a north mark. Regional maps may include National Grid or latitude/longitude number where appropriate. Map keys should be given on the figure, not in the figure caption.

Photographs, line drawings, or combinations may be grouped as figure parts (a), (b), etc. It is preferred that these are mounted. Letters or numerals should not be less than 1 mm after reduction. Avoid fine shading and tones, particularly from computer graphics packages. Shading should be distinct. Photographs must be black and white and sharp, and exhibit good contrast.

All illustrations must be numbered in the order in which they are referred to and discussed in the text as Figure 1 or Figure 1 and 2 (if more than one figures is referred to). Illustrations consisting of a set of fossil photographs should be given as ‘’Plates’’ and mounted in the desired layout. The number of plates should be kept to a minimum. Explanations of plates should be given in both Turkish and English on the same page.

Papers should be submitted electronically in docx format through website DergiPark Academics (dergipark.org.tr/tjb)

In cases where authors’ manuscripts are admitted to publication, authors should upload revised final copies of their manuscripts to the DergiPark System. Manuscripts should be issued in *DOCX format. All images, should be issued in Corel Draw. Besides, the resolution of the figures should not be less than 300 dpi. Both drawing (CDR) and image (JPG) files must be submitted through the DergiPark System.

Proofing of articles are sent to Reference Author to check for typographical errors and misspelling. Revisions in proofing are limited to misspelling and any amendments and revisions by authors that may alter article in a way different than its final version are not acceptable. Proofing should be sent to editor within at latest seven days after receipt by authors. Delayed revisions cannot be guaranteed for printing and therefore, authors are strictly recommended to precisely inspect proofing prior to sending.

The author or corresponding author on behalf of all authors (for papers with multiple authors) must sign the ‘’Copyright Transfer’’ agreement before the article can be published. This transfer agreement enables the Chamber of Geological Engineers to protect the copyrighted material for the authors, but does not relinquish the authors’ proprietary rights. The Copyright Transfer form should be sent to the Editor as soon as possible. Manuscripts accepted for publication will not be sent to print until this form is received by the Editor.

Editors and reviewers of the Geol. Bul. Turkey, the ethical task prepared by the Committee on Publication Ethics (COPE) under the headings of "Code of Conduct and Best Practice Guidelines for Journal Editors" and "Best Practice Guidelines for Journal Editors" and has responsibilities.
Editors are responsible for monitoring the progress of the journal and the processes aimed at improving the quality of published work.

Article Withdrawal: Authors who want to withdraw their article under evaluation should convey their request to the journal editor via the DergiPark system. The Editorial Board reviews the withdrawal application and responds within 15 days. The author(s) of the manuscript whose application is not approved by the Editorial Board cannot send their manuscript to another journal. If the author(s) become aware of any mistakes or errors related to the study after publication, in the early submission or review stages, they are obliged to cooperate with the journal editor. The author(s) must have the right to use any data which does not belong to themselves and must have documents showing necessary permissions related to the research/analysis.