International Journal of Coal Geology

Top Research Topics at International Journal of Coal Geology?

International Journal of Coal Geology generally zeroes in on subjects such as Coal, Mineralogy, Geochemistry, Coal mining and Maceral. Topics in Coal explored in the journal were investigated in conjunction with research in Sedimentary rock, Methane and Mining engineering. While it focused on Sedimentary rock, it was also able to explore topics like Carbon, Diagenesis and Paleozoic.

Issues in Methane were discussed, taking into consideration concepts from other disciplines like Carbon dioxide and Adsorption, Sorption. Some problems in Mineralogy that were presented in the journal overlapped with concepts under Organic matter, Oil shale and Vitrinite. Kerogen and Environmental chemistry, Total organic carbon are some topics wherein Organic matter research discussed in the journal have an impact.

The concepts on Geochemistry presented in the journal can also apply to other research fields, including Sedimentary depositional environment, Structural basin, Source rock, Maturity (geology) and Peat. Research on Coal mining addressed in it frequently intersections with the field of Geotechnical engineering. It addresses concerns in Pyrite which are intertwined with other disciplines, such as Clay minerals and Illite.

• Coal (53.54%)
• Mineralogy (41.28%)
• Geochemistry (23.77%)

What are the most cited papers published in the journal?

• Coalbed methane: A review (808 citations)
• Estimations of Clarkes for Carbonaceous biolithes: World averages for trace element contents in black shales and coals (748 citations)
• Synthesis of zeolites from coal fly ash: an overview (658 citations)

Research areas of the most cited articles at International Journal of Coal Geology:

Coal, Mineralogy, Coal mining, Geochemistry and Methane are the main subjects of interest in the journal papers. Coalbed methane is a major topic of Coal research in the most cited papers. While work presented in the most cited articles provide substantial information on Mineralogy, it also covers topics in Oil shale, Adsorption and Vitrinite.

What topics the last edition of the journal is best known for?

• Organic chemistry
• Oxygen
• Ecology

The previous edition focused in particular on these issues:

The journal investigates studies in Coal, Geochemistry, Organic matter, Maceral and Oil shale. The journal explores topics in Coal which can be helpful for research in disciplines like Environmental chemistry, Methane, Mineralogy and Permeability (earth sciences). The work on Geochemistry tackled in the journal brings together disciplines like Kerogen, Source rock and Sedimentary depositional environment.

It goes beyond the discussion of Organic matter as it connects it with closely related disciplines like

• Maturity (geology) and related Sterane,
• Chemical engineering and related Sorption.. It facilitates discussions on Maceral that incorporate concepts from other fields like Organic geochemistry, Petrology and Vitrinite. While work presented in it provided substantial information on Oil shale, it also covered topics in Hydraulic fracturing, Carbonate, Quartz and Paleozoic.

The most cited articles from the last journal are:

• Strontium isotopes in high- and low-Ge coals from the Shengli Coalfield, Inner Mongolia, northern China: New indicators for Ge source (10 citations)
• Identification of thin-layer coal texture using geophysical logging data: Investigation by Wavelet Transform and Linear Discrimination Analysis (8 citations)
• X-ray tomography imaging of shale microstructures: A review in the context of multiscale correlative imaging (7 citations)

Papers citation over time

A key indicator for each journal is its effectiveness in reaching other researchers with the papers published at that venue.

The chart below presents the interquartile range (first quartile 25%, median 50% and third quartile 75%) of the number of citations of articles over time.

Top authors and change over time

The top authors publishing in International Journal of Coal Geology (based on the number of publications) are:

• James C. Hower (189 papers) published 6 papers at the last edition, 3 less than at the previous edition,
• Maria Mastalerz (130 papers) published 5 papers at the last edition, 6 less than at the previous edition,
• Colin R. Ward (78 papers) absent at the last edition,
• Shifeng Dai (67 papers) published 5 papers at the last edition the same number as at the previous edition,
• Ralf Littke (66 papers) published 4 papers at the last edition, 1 less than at the previous edition.

The overall trend for top authors publishing in this journal is outlined below. The chart shows the number of publications at each edition of the journal for top authors.

Top affiliations and change over time

Only papers with recognized affiliations are considered

The top affiliations publishing in International Journal of Coal Geology (based on the number of publications) are:

• University of Kentucky (220 papers) published 5 papers at the last edition, 5 less than at the previous edition,
• China University of Mining and Technology (204 papers) published 9 papers at the last edition, 9 less than at the previous edition,
• United States Geological Survey (197 papers) published 7 papers at the last edition, 2 more than at the previous edition,
• Commonwealth Scientific and Industrial Research Organisation (145 papers) published 2 papers at the last edition, 4 less than at the previous edition,
• University of New South Wales (130 papers) published 7 papers at the last edition, 1 less than at the previous edition.

The overall trend for top affiliations publishing in this journal is outlined below. The chart shows the number of publications at each edition of the journal for top affiliations.

Publication chance based on affiliation

The publication chance index shows the ratio of articles published by the best research institutions in the journal edition to all articles published within that journal. The best research institutions were selected based on the largest number of articles published during all editions of the journal.

The chart below presents the percentage ratio of articles from top institutions (based on their ranking of total papers).Top affiliations were grouped by their rank into the following tiers: top 1-10, top 11-20, top 21-50, and top 51+. Only articles with a recognized affiliation are considered.

During the most recent 2021 edition, 6.19% of publications had an unrecognized affiliation. Out of the publications with recognized affiliations, 42.86% were posted by at least one author from the top 10 institutions publishing in the journal. Another 25.27% included authors affiliated with research institutions from the top 11-20 affiliations. Institutions from the 21-50 range included 14.29% of all publications and 17.58% were from other institutions.

Returning Authors Index

A very common phenomenon observed among researchers publishing scientific articles is the intentional selection of journals they have already attended in the past. In particular, it is worth analyzing the case when the authors participate in the same journal from year to year.

The Returning Authors Index presented below illustrates the ratio of authors who participated in both a given as well as the previous edition of the journal in relation to all participants in a given year.

Returning Institution Index

The graph below shows the Returning Institution Index, illustrating the ratio of institutions that participated in both a given and the previous edition of the conference in relation to all affiliations present in a given year.

The experience to innovation index

Our experience to innovation index was created to show a cross-section of the experience level of authors publishing in a journal. The index includes the authors publishing at the last edition of a journal, grouped by total number of publications throughout their academic career (P) and the total number of citations of these publications ever received (C).

The group intervals were selected empirically to best show the diversity of the authors' experiences, their labels were selected as a convenience, not as judgment. The authors were divided into the following groups:

• Novice - P < 5 or C < 25 (the number of publications less than 5 or the number of citations less than 25),
• Competent - P < 10 or C < 100 (the number of publications less than 10 or the number of citations less than 100),
• Experienced - P < 25 or C < 625 (the number of publications less than 25 or the number of citations less than 625),
• Master - P < 50 or C < 2500 (the number of publications less than 50 or the number of citations less than 2500),
• Star - P ≥ 50 and C ≥ 2500 (both the number of publications greater than 50 and the number of citations greater than 2500).

The chart below illustrates experience levels of first authors in cases of publications with multiple authors.