
Mikael Calner
Professor

News and activities
May 2016: Deep drilling through Cambrian-Ordovician at Kinnekulle with Riksriggen. Information for media in Swedish.
February 2016: Initial field work in New Providence and Andros Island on Quaternary carbonates. Photo shows large-scale cross-bedding in Holocene carbonate sand dune in New Providence.
January 2016: Reconnaissance for deep drilling at Kinnekulle. Proposed drill site at Högkullen.
August 2015: Deep coring through Silurian strata on Gotland, in collaboration with University of Iowa, and by means of new LU infrastructure Riksriggen. More info in Swedish. The crew!
Broadcasted on Swedish Radio P4
Coverage by Gotland Allehanda
June 2015: Completing carbon isotope sampling campaign in Oslo region. Sitting on the Ordovician-Silurian boundary.
May 2015: Reconnaissance trip to Gotland to prepare for deep drilling. Studying Silurian reef limestone at Högklint.
June 2014: Field work and experience tour to classical Silurian localities of England and Wales.
May and August 2014: Field work in the Oslo-Asker district of southern Norway. Studying the Norwegian stratotype for the Ordovician-Silurian boundary, where the stratigraphy is upside-down!
June 2013: Chair of the IGCP 591 annual meeting in Lund. Regional excursion with one at the first stops at Rövarekulan locality to discuss Silurian shale fill of the Colonus Shale Trough. Field trip guide book to Palaeozoic outcrops of southern Sweden and Norway available here.
Teaching
My teaching focuses on sedimentary processes and products on wide spatial and temporal scales – from river systems and deserts in the continental interiors to the pelagic rain in the deep ocean, and from the Precambrian to the recent. Students learn to identify ancient depositional environments through facies analysis and also to study how these systems evolved through time by means of sequence stratigraphy – in carbonate as well as clastic or mixed basins. Since my research background mainly is within carbonate rocks, palaeoecology and palaeontology is a natural and well integrated part of my teaching. Most of my exercises and field excursions are based on either the 'old' marine Cambro-Devonian Baltoscandian basin of south-eastern Scandinavia or the Swedish segment of the 'young' marine-continental Mesozoic Danish basin to the southwest. In the core laboratory in the basement of our department I have assembled a few hundreds of metres of Palaeozoic intracratonic stratigraphy. These cores are regularly used in my teaching for two reasons. It gives the students frequent opportunities to study 'the real thing', as a complement to field excursions, and a 'first-row-insight' into my research about the marine environment, climate change and extinction events during the Palaeozoic.
Research projects
I am a specialist in sedimentary geology, sequence stratigraphy, and palaeoecology, and utilise fossil sediments and geochemistry to study the interplay of global change in climate, sea-level and biodiversity (minor and mass extinctions).
Ordovician sea-level, stable isotope stratigraphy and global climate
The principal goal of the research project is to establish the first Global Sea-level Model [GSM] for the Ordovician period [488-444 Ma]. The GSM will be based on reference districts in two palaeocontinents, representing different climate settings; the tropical parts of Laurentia (Great Basin, south-eastern USA) and temperate Baltoscandia (Sweden and East Baltic area). The recent very rapid development in carbon isotope stratigraphy and a new, globally applicable chronostratigraphical classification of the Ordovician, for the first time provide foundation for such study. Detailed sea-level records will be reconstructed through study of sedimentary proxies [facies analysis, sequence stratigraphy] and tied to the twenty new chronostratigraphic stage slices for the Ordovician by means of stable isotope stratigraphy and biostratigraphy. The result will be one composite high-resolution Composite Eustasy Stratotype Section [CESS] from each continent, which together forms the basis for the global model. The usage of the stratigraphically very well defined, and internationally agreed, stage slices as basic correlative unit for the first time permit a future regular revision and update of the GSM.
Silurian extinction events and climate – impact on carbonate platform ecosystems
In this project I primarily study the coupled extinction events and carbon isotope excursions of the Silurian on a broad interdisciplinary basis by integrating studies of short-term biodiversity and ecological changes with changes in relative sea-level and perturbations in the global carbon cycle. The initial hypothesis to be tested is that these minor extinction events are in several aspects comparable to some of the 'major five' extinction events of the Phanerozoic and are more similar to them than previously believed. This hypothesis has evolved from the growing body of biological and geochemical evidence that Silurian extinction events were global and associated with changes in the global carbon cycle that were of equal or even greater magnitude than those related to the Late Cambrian SPICE event, and the end-Ordovician and Frasnian-Famennian mass extinctions. From an ecological point of view the Silurian events share unexpectedly many characters with the most devastating events of the Palaeozoic (e.g. microbial resurgence and development of anachronistic facies).
The significance of calcareous oolites
What is the oceanographic and ecological significance of Phanerozoic calcareous oolites? I have the questions but not the answers. Widespread oolite formations in the Palaeozoic clearly signals major ecosystem changes in the marine environment. See my abstracts for some of my ideas on this topic.
Publications
Selected papers
- Calner, M. and Eriksson, M.E. 2012. Microbially induced sedimentary structures (MISS) from the Palaeozoic of Sweden. Society of Economic Paleontologist and Mineralogist, special volume. In press. (PDF) J29
- Eriksson, M.E., Lindskog, A., Calner, M., Mellgren, J.I.S., Bergström, S.M., Terfelt, F. & Schmitz, B. 2012. Biotic dynamics and microfacies of the conspicuous Darriwilian (Middle Ordovician) 'Täljsten' interval, south-central Sweden. Palaeogeography, Palaeoclimatology, Palaeoecology Published online 16 February 2012. (PDF) J28
- Calner, M., Lehnert, O. & Jeppsson, L. 2012. New chemostratigraphic data through the Mulde Event interval (Silurian, Wenlock), Gotland, Sweden. GFF 134 (1), 65-67. (PDF) J27
- Bergström, S.M., Lehnert, O., Calner, M. and Joachimski, M. 2012. A new Upper Ordovician-Lower Silurian drillcore standard succession from Borenshult in Östergötland, southern Sweden: 2. Significance of δ13C chemostratigraphy. GFF 134, 39-63. (PDF) J26
- Bergström, S.M., Calner, M., Lehnert, O. and Noor, A. 2011. A new Upper Ordovician-Lower Silurian drillcore standard succession from Borenshult in Östergötland, southern Sweden: 1. Stratigraphical review with regional comparisons. GFF 133, 149-171. (PDF) J25
- Calner, M., and Ahlberg, P. 2011. Guide till de västgötska platåbergens geologi. Geologiskt forum 70, p. 17-28. [Translated title: A guide to the geology of the table mountains in Västergötland]. Popular science. (PDF) J24
- Munnecke, A., Calner, M., Harper, D.A.T. and Servais, T. 2010. Ordovician and Silurian sea-water geochemistry, sea level, and climate: a synopsis. In: Harper, D.A.T., Calner, M. and Munnecke, A. (eds), Early Palaeozoic Sea Level and Climate. Palaeogeography, Palaeoclimatology, Palaeoecology 296, 389-413. (PDF) J23
- Lehnert, O., Männik, P., Joachimski, M., Calner, M. and Buggisch, W. (2010) Palaeoclimate perturbations before the Sheinwoodian glaciation: a trigger for extinctions during the 'Ireviken Event'. In: Harper, D.A.T., Calner, M. and Munnecke, A. (eds), Early Palaeozoic Sea Level and Climate. Palaeogeography, Palaeoclimatology, Palaeoecology 296, 320-331. (PDF) J22
- Calner, M., Lehnert, O. and Nõlvak, J. (2010) Palaeokarst evidence for widespread regression and subaerial exposure in the middle Katian (Upper Ordovician) of Baltoscandia: significance for global climate. In: Harper, D.A.T., Calner, M. and Munnecke, A. (eds), Early Palaeozoic Sea Level and Climate. Palaeogeography, Palaeoclimatology, Palaeoecology 296, 235-247. (PDF) J21
- Calner, M., Lehnert, O., Joachimski, M. 2010. Carbonate mud mounds, conglomerates and sea-level history in the middle Katian (Upper Ordovician) of central Sweden. FACIES 56, 157-172. (PDF) J20
- Calner, M. 2008. Silurian global events – at the tipping point of climate change. In: Ashraf M.T. Elewa (ed.): Mass extinctions, pp. 21-58. Springer-Verlag. Berlin and Heidelberg. (PDF) J19
- Eriksson, M.J. and Calner, M. 2008. A sequence stratigraphical model for the late Ludfordian (Silurian) of Gotland, Sweden – implications for timing between changes in sea-level, palaeoecology, and the global carbon cycle. Facies 54, 253-276. (PDF) J18
- Calner, M., Eriksson, M.E., Clarkson, E.N.K. and Jeppsson, L. 2008. An atypical intra-platform environment and biota from the Silurian of Gotland, Sweden. GFF 130, 79-86. (PDF) J17
- Lehnert, O., Eriksson, M.J., Calner, M., Joachimski, M. and Buggisch, W. 2007. Concurrent sedimentary and isotopic indications for global climatic cooling in the Late Silurian. Acta Palaeontologica Sinica 46, 249-255. (PDF) J16
- Calner, M., Kozłowska, A., Masiak, M. & Schmitz, B. 2006. A shoreline to deep basin correlation chart for the middle Silurian coupled extinction-stable isotopic event . GFF 128 , 79-84. (PDF Article) (PDF Chart 1) J14 J15
- Calner, M., Ahlberg, P., Axheimer, N. and Gustavsson, L., 2006: The first record of Odontopleura ovata (Trilobita) from Scandinavia: part of a middle Silurian intercontinental shelly benthos mass occurrence. GFF 128, 37-41. (PDF) J13
- Jeppsson, L., Eriksson, M.E. and Calner, M. 2006. A latest Llandovery to latest Ludlow high-resolution biostratigraphy based on the Silurian of Gotland – a summary. GFF 128, 109-114. (PDF) J12
- Calner, M. 2005a. A Late Silurian extinction event and anachronistic period. Geology 33 , 305-308. (PDF) J11
- Calner, M. 2005c. A Late Silurian extinction event and anachronistic period: Comment and Reply. Geology Online forum e92. (PDF) J10
- Calner, M. 2005b. Silurian carbonate platforms and extinction events – ecosystem changes exemplified from Gotland, Sweden. Facies 51 , 603-610. (PDF) J9
- Dahlqvist, P. and Calner, M. 2004. Late Ordovician palaeoceanographic changes as reflected in the Hirnantian-early Llandovery succession of Jämtland, Sweden. In: M.C. Pope & M.T. Harris (eds.): New insights into Late Ordovician Climate, Oceanography, and Tectonics.Palaeogeography, Palaeoclimatology, Palaeoecology 210, 149-164. (PDF) J8
- Calner, M., Jeppsson, L. & Eriksson, M.J. 2004. Ytterholmen revisited - implications for the Late Wenlock stratigraphy of Gotland and coeval extinctions. GFF 126, 231-241. (PDF) J7
- Calner, M. and Jeppsson, L. 2003. Carbonate platform evolution and conodont stratigraphy during the middle Silurian Mulde Event, Gotland, Sweden. Geological Magazine 140, 173-203. (PDF) J6
- Jeppsson, L. and Calner, M. 2003. The Silurian Mulde Event and a scenario for secundo-secundo events. Transactions of the Royal Society of Edinburgh: Earth Sciences 93, 135-154. (PDF) J5
- Calner, M. 2002. A lowstand epikarstic intertidal flat from the middle Silurian of Gotland, Sweden. Sedimentary Geology 148 (3-4), p. 389-403. (PDF) J4
- Calner, M., Sandström, O. and Mõtus, A.-M. 2000. Significance of a halysitid-heliolitid mud-facies autobiostrome from the Middle Silurian of Gotland, Sweden. Palaios 15, 509-521. (PDF) J3
- Calner, M. and Säll, E. 1999. Transgressive oolites onlapping a Silurian rocky shoreline unconformity, Gotland, Sweden. GFF 121, 91-100. (PDF) J2
- Calner, M. 1999. Stratigraphy, facies development, and depositional dynamics of the Late Wenlock Fröjel Formation, Gotland, Sweden. GFF 121, 13-24. (PDF) J1
Selected abstracts
- Lehnert, O., Meinhold, G., Bergström, S.M., Calner, M., Ebbestad, J.O.R., Egenhoff, S., Frisk, Å.M., Högström, A.E.S. and Maletz, J. 2012. The Siljan Ring in central Sweden - a window into the Palaeozoic history of Baltoscandia. Geophysical Research Abstracts 14, EGU General Assembly 2012, Vienna. (PDF) A8
- Lehnert, O., Calner, M., Ahlberg, P., Harper, D.A.T. 2012. Multiple palaeokarst horizons in the Lower Palaeozoic of Baltoscandia challenging the dogma of a deep epicontinental sea. Geophysical Research Abstracts 14, EGU General Assembly 2012, Vienna. (PDF) A7
- Calner, M., Lehnert, O. 2009. The Hirnantian oolites in Baltoscandia – part of the terminal Ordovician anachronistic period. In: D.A.T. Harper and M. McCorry (eds), Absolutely final meeting of IGCP 503: Ordovician palaeogeography and palaeoclimate, Copenhagen. Abstracts, p. 5. (PDF) A6
- Calner, M. 2008. Silurian Global Events: A review of the associated changes in shallow-marine benthic ecosystems. Palaeozoic Climates – International Congress (IGCP 503), Lille, France, August 22-31, Abstract Volume, p. 19. (PDF) A5
- Calner, M., Lehnert, O. and Nõlvak, J. 2008. The significance of middle Katian palaeokarst in Baltoscandia for Upper Ordovician global climate. Palaeozoic Climates – International Congress (IGCP 503), Lille, France, August 22-31, Abstract Volume, p. 20. (PDF) A4
- Lehnert, O., Joachimski, M., Frýda, J., Buggisch, W., Calner, M., Jeppsson, L. & Eriksson, M.J. 2006. The Ludlow Lau Event - another glaciation in the Silurian Greenhouse? Geological Society of America, annual meeting, Philadelphia, 22-25 Oct. 2006, Abstracts with Programs 38, p. 183. (PDF) A3
- Cramer, B.D., Saltzman, M.R., Bergström, S.M., Kleffner, M.A., Munnecke, A., Loydell, D.K., Brett, C.E., Jeppsson, L., Calner, M., Day, J.E., Witzke, B.J., Kershaw, S., Díaz-Martínez, E. & Young, S.A. 2006. Chronostratigraphic Significance of High-Resolution δ 13 C carb Stratigraphy: The Role of Carbon Isotopes and the Future of Paleozoic Stratigraphy . IGCP 503 Meeting, Glasgow 2006.
- Groves, J.R. and Calner, M. 2004. Lower Triassic oolites in Tethys: a sedimentologic response to the end-Permian mass extinction. Geological Society of America, annual meeting, Denver, 7-10 Nov. 2004, Abstracts with Programs 36 (5), p. 336. (PDF) A2
- Calner, M. 2002b. Lithoevents - oolites in event stratigraphy. North-Central Section and Southeastern Section, Geological Society of America Joint Annual Meeting, Lexington, KY, USA. Abstract volume 34(2), A-26. (PDF) A1
Publications
Displaying of publications. Sorted by year, then title.
Mid-Norian to Hettangian record and time-specific oolites during the end-Triassic Mass Extinction at Wadi Milaha, Musandam Peninsula, United Arab Emirates
Ingrid Urban, Isaline Demangel, Leopold Krystyn, Mikael Calner, Zsófia Kovács, et al.
(2023) Journal of Asian Earth Sciences: X, 9
Journal articleExpansion of Reducing Marine Environments During the Ireviken Biogeochemical Event : Evidence From the Altajme Core, Gotland, Sweden
Brittany M. Stolfus, Lindsi J. Allman, Seth A. Young, Mikael Calner, Emma R. Hartke, et al.
(2023) Paleoceanography and Paleoclimatology, 38
Journal articleStable ocean redox during the main phase of the Great Ordovician Biodiversification Event
Álvaro del Rey, Christian Mac Ørum Rasmussen, Mikael Calner, Rongchang Wu, Dan Asael, et al.
(2022) Communications Earth and Environment, 3
Journal articleThe record of early Silurian climate changes from South China and Baltica based on integrated conodont biostratigraphy and isotope chemostratigraphy
Guanzhou Yan, Oliver Lehnert, Peep Männik, Mikael Calner, Xiaocong Luan, et al.
(2022) Palaeogeography, Palaeoclimatology, Palaeoecology, 606
Journal articleOsmium and lithium isotope evidence for weathering feedbacks linked to orbitally paced organic carbon burial and Silurian glaciations
Adam D. Sproson, Philip A.E. Pogge von Strandmann, David Selby, Emilia Jarochowska, Jiří Frýda, et al.
(2022) Earth and Planetary Science Letters, 577
Journal articleAsynchronous δ13Ccarb and δ13Corg records during the onset of the Mulde (Silurian) positive carbon isotope excursion from the Altajme core, Gotland, Sweden
Ellie J. Biebesheimer, Bradley D. Cramer, Mikael Calner, Bruce A. Barnett, Stephan C. Oborny, et al.
(2021) Chemical Geology, 576
Journal articleCarbon isotope chemostratigraphy and sea-level history of the Hirnantian Stage (uppermost Ordovician) in the Oslo-Asker district, Norway
Mikael Calner, Johan Fredrik Bockelie, Christian M.Ø. Rasmussen, Hanna Calner, Oliver Lehnert, et al.
(2021) Geological Magazine, 158 p.1977-2008
Journal articleStratigraphy of the Gorstian and Ludfordian (upper Silurian) Hemse Group reefs on Gotland, Sweden
Olof Taromi Sandström, Peter Dahlqvist, Mikael Erlström, Lena Persson, Steve Kershaw, et al.
(2021) GFF, 143 p.71-83
Journal articleMiaolingian (Cambrian) trilobite biostratigraphy and carbon isotope chemostratigraphy in the Tingskullen drill core, Öland, Sweden
Per Ahlberg, Frans Lundberg, Mikael Calner, Oliver Lehnert, Peter Dahlqvist, et al.
(2021) Estonian Journal of Earth Sciences, 70 p.18-35
Journal articleDecoupling δ13Ccarb and δ13Corg at the onset of the Ireviken Carbon Isotope Excursion : Δ13C and organic carbon burial (forg) during a Silurian oceanic anoxic event
Emma R. Hartke, Bradley D. Cramer, Mikael Calner, Michael J. Melchin, Bruce A. Barnett, et al.
(2021) Global and Planetary Change, 196
Journal articleRedox geochemistry of the red ‘orthoceratite limestone’ of Baltoscandia : Possible linkage to mid-Ordovician palaeoceanographic changes
Ondřej Bábek, Tomáš Kumpan, Mikael Calner, Daniel Šimíček, Jiří Frýda, et al.
(2021) Sedimentary Geology, 420
Journal articleIntegrated Cambrian biostratigraphy and carbon isotope chemostratigraphy of the Grönhögen-2015 drill core, Öland, Sweden
PER AHLBERG, FRANS LUNDBERG, MIKAEL ERLSTRÖM, MIKAEL CALNER, ANDERS LINDSKOG, et al.
(2019) Geological Magazine, 156 p.935-949
Journal articleConodont biostratigraphy and carbon isotope stratigraphy of the Middle Ordovician (Darriwilian) Komstad Limestone, southern Sweden
Rong Chang Wu, Mikael Calner, Oliver Lehnert, Anders Lindskog, Michael Joachimski
(2018) GFF, 140 p.44-54
Journal articleIntegrated conodont biostratigraphy and carbon isotope chemostratigraphy in the Lower–Middle Ordovician of southern Sweden reveals a complete record of the MDICE
RONGCHANG WU, MIKAEL CALNER, OLIVER LEHNERT
(2017) Geological Magazine, 154 p.334-353
Journal articleThe first continuous δ13C record across the Late Silurian Lau Event on Gotland, Sweden
Hani Younes, Mikael Calner, Oliver Lehnert
(2017) GFF, 139 p.63-69
Journal articleGeologi och geomorfologi i norra Bohusläns kustlandskap
Mikael Calner, Helena Alexanderson, Anders Scherstén
(2017) Geologiskt Forum, 95 p.16-21
Journal articleVandring runt Hunnebo klåvor
Mikael Calner, Helena Alexanderson, Anders Scherstén
(2017) Geologiskt Forum, 95 p.22-24
Journal articleEarly Jurassic microbial mats—A potential response to reduced biotic activity in the aftermath of the end-Triassic mass extinction event
Olof Peterffy, Mikael Calner, Vivi Vajda
(2016) Palaeogeography, Palaeoclimatology, Palaeoecology, 464 p.76-85
Journal articleObituary Lennart Jeppsson 1940-2015
Stig M. Bergström, Per Ahlberg, Mikael Calner, Mats Eriksson, Birger Schmitz, et al.
(2015) The Palaeontological Association Newsletter, 89 p.103-105
Journal articleLower-Middle Ordovician delta C-13 chemostratigraphy of western Baltica (Jamtland, Sweden)
Rongchang Wu, Mikael Calner, Oliver Lehnert, Olof Peterffy, Michael M. Joachimski
(2015) Palaeoworld, 24 p.110-122
Journal articleIn memoriam : Lennart Jeppsson - banbrytande paleontolog
Per Ahlberg, Stig M. Bergström, Mikael Calner, Mats Eriksson
(2015) Geologiskt Forum , p.25-27
Journal articled(13)C chemostratigraphy in the Lower-Middle Ordovician succession of Oland (Sweden) and the global significance of the MDICE
Mikael Calner, Oliver Lehnert, Rongchang Wu, Peter Dahlqvist, Michael M. Joachimski
(2014) GFF, 136 p.48-54
Journal articledelta C-13 chemostratigraphy in the upper Tremadocian through lower Katian (Ordovician) carbonate succession of the Siljan district, central Sweden
Oliver Lehnert, Guido Meinhold, Rongchang Wu, Mikael Calner, Michael M. Joachimski
(2014) Estonian Journal of Earth Sciences, 63 p.277-286
Journal articleLate Ordovician (Katian) spores in Sweden : oldest land plant remains from Baltica
Ahmed Salah Badawy, Kristina Mehlqvist, Vivi Vajda, Per Ahlberg, Mikael Calner
(2014) GFF, 136 p.16-21
Journal articleChitinozoan biostratigraphy across the Katian (Late Ordovician) GICE event in the Borenshult-1 drillcore (Sweden)
Lauren Pouille, Aurelien Delabroye, Thijs R. A. Vandenbroucke, Mikael Calner, Oliver Lehnert, et al.
(2013) Review of Palaeobotany and Palynology, 198 p.134-144
Journal articlePalynostratigraphy of dinosaur footprint-bearing deposits from the Triassic-Jurassic boundary interval of Sweden
Vivi Vajda, Mikael Calner, Anders Ahlberg
(2013) GFF, 135 p.120-130
Journal articleOrdovician stratigraphy of the Stumsnas 1 drill core from the southern part of the Siljan Ring, central Sweden
Oliver Lehnert, Guido Meinhold, Arzu Arslan, Jan Ove R. Ebbestad, Mikael Calner
(2013) GFF, 135 p.204-212
Journal articlePalynology and sedimentology of the Upper Ordovician-lowermost Llandovery in the Röstånga-1 core, southern Sweden
Ahmed S. Badawy, Per Ahlberg, Mikael Calner, Kristina Mehlqvist, Vivi Vajda
(2013) [Publication information missing] , p.39-41
Conference paper: abstractPalaeokarst formation in the early Palaeozoic of Baltoscandia : evidence for significant sea-level changes in a shallow epicontinental sea
Oliver Lehnert, Mikael Calner, Per Ahlberg, Jan Ove Ebbestad, David A.T. Harper, et al.
(2013) [Publication information missing] , p.169-171
Conference paper: abstractA complete record of the 'Lower' Cambrian-Middle Ordovician succession of Öland, southern Sweden, based on the Tingskullen core
Peter Dahlqvist, Mikael Calner, Oliver Lehnert, Per Ahlberg
(2013) [Publication information missing] , p.74-76
Conference paper: abstractThe Drumian Isotopic Carbon Excursion (DICE) in Scania, southern Sweden : a mirror of the onset of the Marjumiid Biomere at a time of increased primary production?
Oliver Lehnert, Per Ahlberg, Mikael Calner, Michael M. Joachimski
(2013) [Publication information missing] , p.172-174
Conference paper: abstractThe Lower Palaeozoic of southern Sweden and the Oslo Region, Norway. Field Guide for the 3rd Annual Meeting of the IGCP project 591
(2013) Sveriges geologiska undersökning Rapporter och Meddelanden, 133
BookNew chemostratigraphic data through the Mulde Event interval (Silurian, Wenlock), Gotland, Sweden
Mikael Calner, Oliver Lehnert, Lennart Jeppsson
(2012) GFF, 134 p.65-67
Journal articleGeochemical variations within the mid-Silurian Grotlingbo Bentonite (Gotland, Sweden): discriminating between magmatic composition, ash transport fractionation and diagenetic effects
Peter Dahlqvist, Mikael Calner, Toivo Kallaste, Tarmo Kiipli, Sven Siir
(2012) GFF, 134 p.273-282
Journal articleNew Ordovician-Silurian drill cores from the Siljan impact structure in central Sweden: an integral part of the Swedish Deep Drilling Program
Oliver Lehnert, Guido Meinhold, Stig M. Bergstroem, Mikael Calner, Jan Ove R. Ebbestad, et al.
(2012) GFF, 134 p.87-98
Journal articleBiotic dynamics and carbonate microfacies of the conspicuous Darriwilian (Middle Ordovician) 'Taljsten' interval, south-central Sweden
Mats Eriksson, Anders Lindskog, Mikael Calner, Johanna Mellgren, Stig M. Bergstrom, et al.
(2012) Palaeogeography, Palaeoclimatology, Palaeoecology, 367 p.89-103
Journal articleThe Record of Microbially Induced Sedimentary Structures (MISS) in the Swedish Paleozoic
Mikael Calner, Mats Eriksson
(2012) Microbial Mats in Siliciclastic Depositional Systems Through Time , p.29-35
Conference paperA new upper Middle Ordovician-Lower Silurian drillcore standard succession from Borenshult in Ostergotland, southern Sweden: 2. Significance of delta C-13 chemostratigraphy
Stig M. Bergstroem, Oliver Lehnert, Mikael Calner, Michael M. Joachimski
(2012) GFF, 134 p.39-63
Journal articleU-Pb (zircon) age constraints on the timing and duration of Wen lock (Silurian) paleocommunity collapse and recovery during the "Big Crisis"
Bradley D. Cramer, Daniel J. Condon, Ulf Söderlund, Carly Marshall, Graham J. Worton, et al.
(2012) Geological Society of America Bulletin, 124 p.1841-1857
Journal articleGuide till de västgötska platåbergens geologi
Mikael Calner, Per Ahlberg
(2011) Geologiskt Forum, 70 p.17-28
Journal articleA new upper Middle Ordovician-Lower Silurian drillcore standard succession from Borenshult in Ostergotland, southern Sweden: 1. Stratigraphical review with regional comparisons
Stig M. Bergstroem, Mikael Calner, Oliver Lehnert, Amir Noor
(2011) GFF, 133 p.149-171
Journal articleCarbonate mud mounds, conglomerates, and sea-level history in the Katian (Upper Ordovician) of central Sweden
Mikael Calner, Oliver Lehnert, Michael Joachimski
(2010) Facies, 56 p.157-172
Journal articlePalaeoclimate perturbations before the Sheinwoodian glaciation: A trigger for extinctiond during the 'Ireviken Event'
Oliver Lehnert, Peep Männik, Michael M. Joachimski, Mikael Calner, Jiri Fryda
(2010) Palaeogeography, Palaeoclimatology, Palaeoecology, 296 p.320-331
Journal articleOrdovician and Silurian sea–water chemistry, sea level, and climate: A synopsis
Axel Munnecke, Mikael Calner, David A.T. Harper, Thomas Servais
(2010) Palaeogeography, Palaeoclimatology, Palaeoecology, 296 p.389-413
Journal articleHow does sea level correlate with sea-water chemistry? A progress report from the Ordovician and Silurian Preface
Axel Munnecke, Mikael Calner, David A. T. Harper
(2010) Palaeogeography, Palaeoclimatology, Palaeoecology, 296 p.213-216
Journal article (comment)Palaeokarst evidence for widespread regression and subaerial exposure in the middle Katian (Upper Ordovician) of Baltoscandia: significance for global climate.
Mikael Calner, Oliver Lehnert, Jaak Nõlvak
(2010) Palaeogeography, Palaeoclimatology, Palaeoecology, 296 p.235-247
Journal articleDiabasen vid Runamo
Mikael Calner, G. Håkansson, Ulf Söderlund
(2009) Geologiskt Forum, 62 p.14-17
Journal articleA sequence stratigraphical model for the late Ludfordian (Silurian) of Gotland, Sweden – implications for timing between changes in sea-level, palaeoecology, and the global carbon cycle
Mårten Eriksson, Mikael Calner
(2008) Facies, 54 p.253-276
Journal articleAn atypical intra-platform environment and biota from the Silurian of Gotland, Sweden
Mikael Calner, Mats Eriksson, Euan N. K. Clarkson, Lennart Jeppsson
(2008) GFF, 130 p.79-86
Journal articleSilurian global events - at the tipping point of climate change
Mikael Calner
(2008) Mass extinction , p.21-58
Book chapterKoldioxid, kosmisk strålning och Jordens globala klimat
Mikael Calner, Vivi Vajda, Stephen McLoughlin
(2007) Geologiskt Forum, 53 p.16-18
Journal articleHow to promote geology in Sweden European Geologist
Vivi Vajda, Mikael Calner, Erik Palmqvist, Anna-Kim Andersson
(2007) European Geologist, 23 p.34-35
Journal articleConcurrent sedimentary and isotopic indications for global climatic cooling in the Late Silurian.
Oliver Lehnert, Mårten E Eriksson, Mikael Calner, Michael Joachimski, Werner Buggisch
(2007) Gǔshēngwùxué bào, 46 p.249-255
Journal articleThe first record of Odontopleura ovata (Trilobita) from Scandinavia: part of a middle Silurian intercontinental shelly benthos mass occurrence
Mikael Calner, Per Ahlberg, Niklas Axheimer, L Gustavsson
(2006) GFF, 128 p.33-37
Journal articleA shoreline to deep basin correlation chart for the middle Silurian coupled extinction-stable isotopic event
Mikael Calner, Anna Kozlowska, Monika Masiak, Birger Schmitz
(2006) GFF, 128 p.79-84
Journal articleSilurian research at the crossroads
Mikael Calner, Mats Eriksson
(2006) GFF, 128 p.73-74
Journal article (comment)A latest Llandovery to latest Ludlow high-resolution biostratigraphy based on the Silurian of Gotland - a summary
Lennart Jeppsson, Mats Eriksson, Mikael Calner
(2006) GFF, 128 p.109-114
Journal article7.1.2 Stratigrafisk indelning
Per Ahlberg, Mikael Calner
(2006) Geobiosfären - en introduktion , p.106-108
Book chapterFrån kusten till djuphavet
Mikael Calner, Per Ahlberg
(2006) Geobiosfären - en introduktion , p.315-322
Book chapterGeologiska råvaror; metanhydrater
Mikael Calner
(2006) Geobiosfären - en introduktion , p.497-498
Book chapterEvidence for rapid environmental changes in low latitudes during the Late Silurian Lau Event: the Burgen-1 drillcore, Gotland, Sweden
Mikael Calner, Mårten Eriksson
(2006) Geological Magazine, 143 p.15-24
Journal articleFanerozoisk berggrund utanför fjällkedjan
Mikael Calner, Anita Löfgren
(2006) Geobiosfären - en introduktion , p.396-411
Book chapterBiostratigraphy of Gotland
Lennart Jeppsson, Mats Eriksson, Mikael Calner
(2005) The Dynamic Silurian Earth (Rapporter och Meddelanden), 121 p.14-17
Conference paperA Late Silurian extinction event and anachronistic period
Mikael Calner
(2005) Geology, 33 p.305-308
Journal articleSilurian carbonate platforms and extinction events - ecosystem changes exemplified from Gotland, Sweden
Mikael Calner
(2005) Facies, 51 p.584-591
Journal articleThe Baltic basin and the Silurian strata of Gotland, Sweden.
Mikael Calner, Lennart Jeppsson, Mats Eriksson
(2005) The Dynamic Silurian Earth (Rapporter och Meddelanden), 121 p.6-14
Conference paperA Late Silurian extinction event and anachronistic period: Comment and Reply.
Mikael Calner
(2005) Geology, 33 p.92-92
Journal article (letter)Field localities
Lennart Jeppsson, Mikael Calner, Mats Eriksson
(2005) The Dynamic Silurian Earth (Rapporter och Meddelanden), 121 p.22-56
Conference paperLate Ordovician palaeoceanographic changes as reflected in the Hirnantian-early Llandovery succession of Jamtland, Sweden
Peter Dahlqvist, Mikael Calner
(2004) Palaeogeography, Palaeoclimatology, Palaeoecology, 210 p.149-164
Journal articleThe Silurian of Gotland - Part II: Guide to the IGCP 503 field meeting 2004.
Mikael Calner, Lennart Jeppsson, Axel Munnecke
(2004) Erlanger Geologische Abhandlungen, 5 p.132-151
Conference paperYtterholmen revisited - implications for the Late Wenlock stratigraphy of Gotland and coeval extinctions
Mikael Calner, Lennart Jeppsson, Mårten Eriksson
(2004) GFF, 126 p.231-241
Journal articleThe Silurian Mulde Event and a scenario for secundo-secundo events
Lennart Jeppsson, Mikael Calner
(2003) Transactions of the Royal Society of Edinburgh. Earth Sciences, 93 p.135-154
Journal article reviewThe jawed annelid Rhytiprion magnus Kielan-Jaworowska, 1966 - a muddy bottom dweller
C F Bergman, Mats Eriksson, Mikael Calner
(2003) GFF, 125 p.191-199
Journal articleCarbonate platform evolution and conodont stratigraphy during the middle Silurian Mulde Event, Gotland, Sweden
Mikael Calner, Lennart Jeppsson
(2003) Geological Magazine, 140 p.173-203
Journal articleA lowstand epikarstic intertidal flat from the middle Silurian of Gotland, Sweden
Mikael Calner
(2002) Sedimentary Geology, 148 p.389-403
Journal articleAn exceptional middle Silurian shale from Gotland, Sweden
Mikael Calner, Mats Eriksson
(2002) GFF, 124 p.181-181
Journal article (letter)Significance of a halysitid-heliolitid mud-facies autobiostrome from the Middle Silurian of Gotland, Sweden.
Mikael Calner, Olof Sandström, Mari-Ann Mõtus
(2000) Palaios, 15 p.509-521
Journal articleStratigraphy and facies of Middle Silurian epicontinental carbonate platform deposits of Gotland, Sweden
Mikael Calner
(2000) Lund Publications in Geology, 150
DissertationStratigraphy, facies development, and depositional dynamics of the Late Wenlock Fröjel Formation, Gotland, Sweden.
Mikael Calner
(1999) GFF, 121 p.13-24
Journal articleTransgressive oolites onlapping a Silurian rocky shoreline unconformity, Gotland, Sweden.
Mikael Calner, Ewa Säll
(1999) GFF, 121 p.91-100
Journal article