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Ralf Littke publication distribution in Earth Science in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Earth Science in 2026. The highlighted bar marks where Ralf Littke sits on this spectrum.

38–42 publications: 1 scientists 43–47 publications: 0 scientists 48–52 publications: 3 scientists 53–57 publications: 8 scientists 58–62 publications: 11 scientists 63–67 publications: 16 scientists 68–72 publications: 24 scientists 73–77 publications: 31 scientists 78–82 publications: 49 scientists 83–87 publications: 77 scientists 88–92 publications: 86 scientists 93–97 publications: 88 scientists 98–102 publications: 92 scientists 103–107 publications: 84 scientists 108–112 publications: 102 scientists 113–117 publications: 108 scientists 118–122 publications: 117 scientists 123–127 publications: 126 scientists 128–132 publications: 146 scientists 133–137 publications: 114 scientists 138–142 publications: 102 scientists 143–147 publications: 127 scientists 148–152 publications: 102 scientists 153–157 publications: 112 scientists 158–162 publications: 102 scientists 163–167 publications: 127 scientists 168–172 publications: 121 scientists 173–177 publications: 112 scientists 178–182 publications: 109 scientists 183–187 publications: 98 scientists 188–192 publications: 92 scientists 193–197 publications: 105 scientists 198–202 publications: 77 scientists 203–207 publications: 80 scientists 208–212 publications: 89 scientists 213–217 publications: 70 scientists 218–222 publications: 74 scientists 223–227 publications: 74 scientists 228–232 publications: 70 scientists 233–237 publications: 67 scientists 238–242 publications: 59 scientists 243–247 publications: 67 scientists 248–252 publications: 51 scientists 253–257 publications: 46 scientists 258–262 publications: 41 scientists 263–267 publications: 39 scientists 268–272 publications: 34 scientists 273–277 publications: 39 scientists 278–282 publications: 35 scientists 283–287 publications: 36 scientists 288–292 publications: 35 scientists 293–297 publications: 29 scientists 298–302 publications: 23 scientists 303–307 publications: 39 scientists 308–312 publications: 34 scientists 313–317 publications: 23 scientists 318–322 publications: 18 scientists 323–327 publications: 18 scientists 328–332 publications: 21 scientists 333–337 publications: 20 scientists 338–342 publications: 15 scientists 343–347 publications: 13 scientists 348–352 publications: 24 scientists 353–357 publications: 25 scientists 358–362 publications: 10 scientists 363–367 publications: 20 scientists 368–372 publications: 17 scientists 373–377 publications: 18 scientists 378–382 publications: 15 scientists 383–387 publications: 7 scientists 388–392 publications: 22 scientists 393–397 publications: 9 scientists 398–402 publications: 11 scientists 403–407 publications: 16 scientists 408–412 publications: 4 scientists 413–417 publications: 5 scientists 418–422 publications: 14 scientists 423–427 publications: 8 scientists 428–432 publications: 7 scientists 433–437 publications: 7 scientists 438–442 publications: 10 scientists 443–447 publications: 10 scientists 448–452 publications: 3 scientists 453–457 publications: 9 scientists 458–462 publications: 11 scientists 463–467 publications: 4 scientists 468–472 publications: 6 scientists 473–477 publications: 11 scientists 478–482 publications: 8 scientists 483–487 publications: 2 scientists 488–492 publications: 3 scientists 493–497 publications: 4 scientists 498–502 publications: 4 scientists 503–507 publications: 4 scientists 508–509 publications: 4 scientists 510+ publications: 100 scientists
38 publications 510+

The last bar groups every scientist with 510 publications or more.

Ralf Littke D-index placement in Earth Science in 2026

The chart shows the D-index (discipline H-index) distribution of Earth Science scientists ranked by Research.com in 2026. The highlighted bar marks where Ralf Littke sits on this spectrum.

30 D-Index: 15 scientists 31 D-Index: 42 scientists 32 D-Index: 60 scientists 33 D-Index: 90 scientists 34 D-Index: 103 scientists 35 D-Index: 108 scientists 36 D-Index: 142 scientists 37 D-Index: 147 scientists 38 D-Index: 147 scientists 39 D-Index: 152 scientists 40 D-Index: 143 scientists 41 D-Index: 157 scientists 42 D-Index: 141 scientists 43 D-Index: 151 scientists 44 D-Index: 140 scientists 45 D-Index: 135 scientists 46 D-Index: 121 scientists 47 D-Index: 108 scientists 48 D-Index: 128 scientists 49 D-Index: 111 scientists 50 D-Index: 106 scientists 51 D-Index: 112 scientists 52 D-Index: 102 scientists 53 D-Index: 103 scientists 54 D-Index: 94 scientists 55 D-Index: 61 scientists 56 D-Index: 101 scientists 57 D-Index: 71 scientists 58 D-Index: 65 scientists 59 D-Index: 78 scientists 60 D-Index: 93 scientists 61 D-Index: 56 scientists 62 D-Index: 58 scientists 63 D-Index: 52 scientists 64 D-Index: 63 scientists 65 D-Index: 49 scientists 66 D-Index: 53 scientists 67 D-Index: 57 scientists 68 D-Index: 50 scientists 69 D-Index: 44 scientists 70 D-Index: 44 scientists 71 D-Index: 31 scientists 72 D-Index: 33 scientists 73 D-Index: 33 scientists 74 D-Index: 23 scientists 75 D-Index: 32 scientists 76 D-Index: 24 scientists 77 D-Index: 17 scientists 78 D-Index: 19 scientists 79 D-Index: 9 scientists 80 D-Index: 21 scientists 81 D-Index: 20 scientists 82 D-Index: 17 scientists 83 D-Index: 19 scientists 84 D-Index: 19 scientists 85 D-Index: 14 scientists 86 D-Index: 6 scientists 87 D-Index: 14 scientists 88 D-Index: 17 scientists 89 D-Index: 10 scientists 90 D-Index: 8 scientists 91 D-Index: 8 scientists 92 D-Index: 9 scientists 93 D-Index: 6 scientists 94+ D-Index: 98 scientists
30 D-Index 94+

The last bar groups every scientist with 94 D-Index or more.

Overview

Ralf Littke is affiliated with RWTH Aachen University in Germany, contributing extensively to the fields of engineering and earth and planetary sciences.

Their research work primarily covers topics including:

  • Hydrocarbon exploration and reservoir analysis
  • Geochemistry and geologic mapping
  • Methane hydrates and related phenomena
  • Petroleum processing and analysis
  • Coal properties and utilization
  • Hydraulic fracturing and reservoir analysis
  • Atmospheric and environmental gas dynamics

Littke's main fields of study are engineering, with 142 publications, and earth and planetary sciences, with 69 publications. The subfields of their work include:

  • Mechanics of materials
  • Ocean engineering
  • Artificial intelligence
  • Environmental chemistry
  • Geology

Their publication record includes a number of recent papers, notable among them:

  • "Depositional environment, thermal maturity and shale oil potential of the Cretaceous Qingshankou Formation in the eastern Changling Sag, Songliao Basin, China: An integrated organic and inorganic geochemistry approach," 2020, International Journal of Coal Geology
  • "Paleo-depositional environment, origin and characteristics of organic matter of the Triassic Chang 7 Member of the Yanchang Formation throughout the mid-western part of the Ordos Basin, China," 2020, International Journal of Coal Geology
  • "Stress sensitivity of porosity and permeability of Cobourg limestone," 2020, Engineering Geology
  • "Depositional environment and thermal maturity of the coal-bearing Longtan Shale in southwest Guizhou, China: Implications for shale gas resource potential," 2020, International Journal of Coal Geology
  • "Methanogenic conversion of hydrogen to methane in reservoir rocks: An experimental study of microbial activity in water-filled pore space," 2023, International Journal of Hydrogen Energy

Littke frequently publishes in the following venues:

  • International Journal of Coal Geology
  • Marine and Petroleum Geology
  • 30th International Meeting on Organic Geochemistry (IMOG 2021)
  • SSRN Electronic Journal
  • International Journal of Earth Sciences

The scientist collaborates regularly with several coauthors, including:

  • Sebastian Grohmann
  • Alireza Baniasad
  • Laura Zieger
  • Garri Gaus
  • Linda Burnaz

Best Publications

  • The molecularly-uncharacterized component of nonliving organic matter in natural environments

    JI Hedges;G Eglinton;PG Hatcher;DL Kirchman

  • Geological controls on the methane storage capacity in organic-rich shales

    Matus Gasparik;Pieter Bertier;Yves Gensterblum;Amin Ghanizadeh

  • Methane and carbon dioxide adsorption–diffusion experiments on coal: upscaling and modeling

    Andreas Busch;Yves Gensterblum;Bernhard M. Krooss;Ralf Littke

  • BIB-SEM study of the pore space morphology in early mature Posidonia Shale from the Hils area, Germany

    Jop Klaver;Guillaume Desbois;Janos L. Urai;Ralf Littke

  • Evolution patterns of radiolaria and organic matter variations: A new approach to identify sea-level changes in mid-Cretaceous pelagic environments

    Jochen Erbacher;Jürgen Thurow;Ralf Littke

  • Polyphase thermal evolution in the Infra-Cambrian Ara Group (South Oman Salt Basin) as deduced by maturity of solid reservoir bitumen

    Johannes Schoenherr;Ralf Littke;Janos L. Urai;Peter A. Kukla

  • BIB-SEM characterization of pore space morphology and distribution in postmature to overmature samples from the Haynesville and Bossier Shales

    Jop Klaver;Guillaume Desbois;Ralf Littke;Janos L. Urai

  • Occurrence and alteration of organic contaminants in seepage and leakage water from a waste deposit landfill

    Jan Schwarzbauer;Sabine Heim;Sabine Brinker;Ralf Littke

  • Generation of nitrogen and methane from sedimentary organic matter: implications on the dynamics of natural gas accumulations

    B.M. Krooss;R. Littke;B. Müller;J. Frielingsdorf

  • Gas breakthrough experiments on pelitic rocks: comparative study with N2, CO2 and CH4

    A. Hildenbrand;S. Schlömer;B. M. Krooss;R. Littke

  • Water column anoxia, enhanced productivity and concomitant changes in δ13C and δ34S across the Frasnian–Famennian boundary (Kowala — Holy Cross Mountains/Poland)

    Michael M Joachimski;Christian Ostertag-Henning;Richard D Pancost;Harald Strauss

  • Experimental investigation of the CO2 sealing efficiency of caprocks

    J. Wollenweber;S. Alles;Andreas Busch;Bernhard M. Krooss

  • Experimental study of fluid transport processes in the matrix system of the European organic-rich shales: II. Posidonia Shale (Lower Toarcian, northern Germany)

    Amin Ghanizadeh;Alexandra Amann-Hildenbrand;Matus Gasparik;Yves Gensterblum

  • Quantification of loss of calcite, pyrite, and organic matter due to weathering of Toarcian black shales and effects on kerogen and bitumen characteristics

    R Littke;U Klussmann;B Krooss;D Leythaeuser

  • Optical thermal maturity parameters and organic geochemical alteration at low grade diagenesis to anchimetamorphism: A review

    Christoph Hartkopf-Fröder;Peter Königshof;Ralf Littke;Jan Schwarzbauer

  • Organic matter maturation under the influence of a deep intrusive heat source: A natural experiment for quantitation of hydrocarbon generation and expulsion from a petroleum source rock (Toarcian shale, northern Germany)

    J Rullkötter;D Leythaeuser;B Horsfield;R Littke

  • Evolution of Barnett Shale organic carbon structure and nanostructure with increasing maturation

    Maria-Fernanda Romero-Sarmiento;Jean-Noël Rouzaud;Sylvain Bernard;Damien Deldicque

  • Molecular Nitrogen in Natural Gas Accumulations: Generation from Sedimentary Organic Matter at High Temperatures

    Ralf Littke;Bernhard M. Krooss;Erdem F. Idiz;Juergen Frielingsdorf

  • Modelling isotope fractionation during primary cracking of natural gas: a reaction kinetic approach

    Bernhard Cramer;Bernhard M. Krooss;Ralf Littke

  • Thermal History of Sedimentary Basins

    M. N. Yalçin;M. N. Yalçin;R. Littke;R. F. Sachsenhofer

Frequent Co-Authors

Bernhard M. Krooss
Bernhard M. Krooss RWTH Aachen University
János Urai
János Urai RWTH Aachen University
Jan Schwarzbauer
Jan Schwarzbauer RWTH Aachen University
Ruediger Stein
Ruediger Stein University of Bremen
Jürgen Rullkötter
Jürgen Rullkötter Carl von Ossietzky University of Oldenburg
Detlev Leythaeuser
Detlev Leythaeuser University of Cologne
Andreas Busch
Andreas Busch Heriot-Watt University
Harald Strauss
Harald Strauss University of Münster
Heinz Wilkes
Heinz Wilkes Carl von Ossietzky University of Oldenburg

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