Tõnu Martma

High-resolution stable isotope stratigraphy of Upper Ordovician sequences: Constraints on the timing of bioevents and environmental changes associated with mass extinction and glaciation

P. J. Brenchley, G. A. F. Carden, Linda Hints et al. · Geological Society of America Bulletin · 2002 · 387 citations

Engineering, Paleoceanography, Biostratigraphy +17

Middle and Upper Ordovician carbon isotope chemostratigraphy in Baltoscandia: A correlation standard and clues to environmental history

Leho Ainsaar, Dimitri Kaljo, Tõnu Martma et al. · Palaeogeography Palaeoclimatology Palaeoecology · 2010 · 212 citations

Sedimentary Record, Engineering, Paleoenvironmental Change +6

Timescales of methane seepage on the Norwegian margin following collapse of the Scandinavian Ice Sheet

Antoine Crémière, Aivo Lepland, Shyam Chand et al. · Nature Communications · 2016 · 177 citations · Full text

Post-Hunnebergian Ordovician carbon isotope trend in Baltoscandia, its environmental implications and some similarities with that of Nevada

Dimitri Kaljo, Tõnu Martma, Tõnis Saadre · Palaeogeography Palaeoclimatology Palaeoecology · 2006 · 137 citations

Organic Geochemistry, Biogeochemistry, Environmental Implications +9

Carbon isotope event markers through the Wenlock–Pridoli sequence at Ohesaare (Estonia) and Priekule (Latvia)

Dimitri Kaljo, Tarmo Kiipli, Tõnu Martma · Palaeogeography Palaeoclimatology Palaeoecology · 1997 · 128 citations

Isotope Analysis, Engineering, Isotope Geochemistry +5