Tonu  Martma
Tonu Martma
Retired February 2019, Department of Geology, Tallinn University of Technology
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High-resolution stable isotope stratigraphy of Upper Ordovician sequences: constraints on the timing of bioevents and environmental changes associated with mass extinction and …
PJ Brenchley, GA Carden, L Hints, D Kaljo, JD Marshall, T Martma, ...
Geological Society of America Bulletin 115 (1), 89-104, 2003
Middle and Upper Ordovician carbon isotope chemostratigraphy in Baltoscandia: a correlation standard and clues to environmental history
L Ainsaar, D Kaljo, T Martma, T Meidla, P Männik, J Nõlvak, O Tinn
Palaeogeography, Palaeoclimatology, Palaeoecology 294 (3-4), 189-201, 2010
Carbon isotope event markers through the Wenlock–Pridoli sequence at Ohesaare (Estonia) and Priekule (Latvia)
D Kaljo, T Kiipli, T Martma
Palaeogeography, Palaeoclimatology, Palaeoecology 132 (1-4), 211-223, 1997
Post-Hunnebergian Ordovician carbon isotope trend in Baltoscandia, its environmental implications and some similarities with that of Nevada
D Kaljo, T Martma, T Saadre
Palaeogeography, Palaeoclimatology, Palaeoecology 245 (1-2), 138-155, 2007
Timescales of methane seepage on the Norwegian margin following collapse of the Scandinavian Ice Sheet
A Crémière, A Lepland, S Chand, D Sahy, DJ Condon, SR Noble, ...
Nature communications 7 (1), 11509, 2016
Late Ordovician carbon isotope trend in Estonia, its significance in stratigraphy and environmental analysis
D Kaljo, L Hints, T Martma, J Nõlvak, A Oraspõld
Palaeogeography, Palaeoclimatology, Palaeoecology 210 (2-4), 165-185, 2004
Implications of Gondwana glaciations in the Baltic late Ordovician and Silurian and a carbon isotopic test of environmental cyclicity
D Kaljo, T Martma, P Männik, V Viira
Bulletin de la Société géologique de France 174 (1), 59-66, 2003
Evidence for a widespread carbon isotopic event associated with late Middle Ordovician sedimentological and faunal changes in Estonia
L Ainsaar, T Meidla, T Martma
Geological Magazine 136 (1), 49-62, 1999
Isotopic measurements of precipitation on central Asian glaciers (southeastern Tibet, northern Himalayas, central Tien Shan)
V Aizen, E Aizen, J Melack, T Martma
Journal of Geophysical Research: Atmospheres 101 (D4), 9185-9196, 1996
Effect of periodic melting on geochemical and isotopic signals in an ice core from Lomonosovfonna, Svalbard
VA Pohjola, JC Moore, E Isaksson, T Jauhiainen, RSW Van de Wal, ...
Journal of Geophysical Research: Atmospheres 107 (D4), ACL 1-1-ACL 1-14, 2002
Correlation of carbon isotope events and environmental cyclicity in the East Baltic Silurian
D Kaljo, T Kiipli, T Martma
Silurian Cycles œ Linkages of Dynamic Stratigraphy with Atmospheric …, 1998
Snow contribution to first‐year and second‐year Arctic sea ice mass balance north of Svalbard
MA Granskog, A Rösel, PA Dodd, D Divine, S Gerland, T Martma, ...
Journal of Geophysical Research: Oceans 122 (3), 2539-2549, 2017
The Middle Caradoc facies and faunal turnover in the Late Ordovician Baltoscandian palaeobasin
L Ainsaar, T Meidla, T Martma
Palaeogeography, Palaeoclimatology, Palaeoecology 210 (2-4), 119-133, 2004
Testing the limits of Paleozoic chronostratigraphic correlation via high-resolution (< 500 ky) integrated conodont, graptolite, and carbon isotope (δ13Ccarb …
BD Cramer, DK Loydell, C Samtleben, A Munnecke, D Kaljo, P Männik, ...
Bulletin 122 (9-10), 1700-1716, 2010
Contributions of autochthonous and allochthonous sources to dissolved organic matter in a large, shallow, eutrophic lake with a highly calcareous catchment
K Toming, L Tuvikene, S Vilbaste, H Agasild, M Viik, A Kisand, ...
Limnology and oceanography 58 (4), 1259-1270, 2013
Thousand years of winter surface air temperature variations in Svalbard and northern Norway reconstructed from ice-core data
D Divine, E Isaksson, T Martma, HAJ Meijer, J Moore, V Pohjola, ...
Polar Research 30 (1), 7379, 2011
Three global carbon isotope shifts in the Silurian of Podolia (Ukraine): stratigraphical implications
D Kaljo, V Grytsenko, T Martma, MA Motus
Estonian Journal of Earth Sciences 56 (4), 205-220, 2007
A new ice-core record from Lomonosovfonna, Svalbard: viewing the 1920–97 data in relation to present climate and environmental conditions
E Isaksson, V Pohjola, T Jauhiainen, J Moore, JF Pinglot, R Vaikmäe, ...
Journal of Glaciology 47 (157), 335-345, 2001
Carbon isotope stratigraphy in the latest Ordovician of Estonia
D Kaljo, L Hints, T Martma, J Nõlvak
Chemical Geology 175 (1-2), 49-59, 2001
The Wenlock-Ludlow carbon isotope trend in the Vidukle core, Lithuania, and its relations with oceanic events
T Martma, A Brazauskas, D Kaljo, D Kaminskas, P Musteikis
Geological Quarterly 49, 2005
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