I have a bachelor (2019) in Geology from Unisinos University, and a master’s degree (2021) in Geosciences (emphasis on stratigraphy) from the Institute of Geosciences, Federal University of Rio Grande do Sul (UFRGS). Currently, I am a PhD student in Geosciences (emphasis on geochemistry of exogenous processes) at the Institute of Geosciences, University of Sāo Paulo (USP). With a broad multidisciplinary background, my main skills cover stratigraphic and cyclostratigraphic analyses as well as inorganic geochemistry analyses on planktic foraminifera for paleoclimatic and paleoceanographic reconstructions. My doctoral research interest focuses on understand the role of the South Atlantic Subtropical Gyre during critical global climate events over the last 800 kyr. For such, I am using a multi-proxy approach comprising planktic foraminifera abundance, carbon and oxygen stable isotopes, Mg/Ca, and clumped isotope analysis.
Research interests
Mid to Late Quaternary paleoceanography and paleoclimatology
Millennial and orbital-scale climate change
Inorganic geochemistry proxies for paleoceanography and paleoclimatology
Education
2021 – Present PhD in Geosciences (geochemistry of exogenous processes) at the Institute of Geosciences, University of São Paulo, São Paulo, Brazil.
2019 – 2021 MSc in Geosciences (stratigraphy) at the Institute of Geosciences, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
2014 – 2019 BSc in Geology at the Unisinos University, São Leopoldo, Brazil
Complementary education
2021 Python for Data Science. Alura, online course, Brazil (90 hours).
2021 Python. Alura, online course, Brazil (100 hours).
2020 2nd IODP Brazil Summer School on Micropaleontology and Paleoceanography. Unisinos University, Brazil (40 hours).
2019 IsoAstro Geochronology Workshop. National Science Foundation, The United States (60 hours).
2019 Paleomagnetism applied to continents reconstruction. Brazilian Geological Society, Brazil (16 hours).
2018 Sequence stratigraphy applied to the exploration and production of oil, water, coal, and placer deposits. Unisinos University, Brazil (20 hours).
2017 Statistical Programming in Geosciences. Unisinos University, Brazil (16 hours).
2016 IAS Lecture Tour 2016/2017. Unisinos University, Brazil (30 hours).
2016 Sequence Stratigraphy. Unisinos University, Brazil (16 hours).
Research experience
2019 – present
Past perspectives on tipping elements of the climate system: The Amazon rainforest and the Atlantic meridional overturning circulation (PPTEAM). Principal investigator: Prof. Dr. Cristiano Mazur Chiessi, School of Art, Sciences and Humanities, University of Sāo Paulo (USP), São Paulo Research Foundation (FAPESP)
2019 – present
Processing and interpretation of magnetostratigraphic data from the Cretaceous Brazilian Basins. Principal investigator: Prof. Dr. Jairo Francisco Savian, Institute of Geosciences, Federal University of Rio Grande do Sul (UFRGS), Petroleo Brasileiro S.A. (PETROBRAS)
Awards
2018 Honorable mention in the Undergraduate Scientific program, Unisinos University, São Leopoldo, Brazil
Publications
Leandro, C. G.; Savian, J. F.; Kochhann, M. V. L.; Franco, D. R.; Coccioni, R.; Frontalini, F.; Gardin, S.; Jovane, L.; Figueiredo, M.; Tedeschi, L. R.; Janikian, L.; Almeida, R. P.; Trindade, R. I. F. (2022). Astronomical tuning of the Aptian stage and its implications for age recalibrations and paleoclimatic events. Nature Communications. https://doi.org/10.1038/s41467-022-30075-3
Coccioni, R.; Montanari, A.; Bosch, S.; Catanzariti, R.; Frontalini, F.; Jovane, L.; Kochhann, M.V.L.; Pelosi, N.; Sabatino, N.; Savian, J.F.; Sprovieri, M. (2022). Integrated stratigraphy of the Lutetian-Priabonian pelagic section at Bottaccione (Gubbio, central Italy): A proposal for defining and positioning the Global Stratotype Section and Point (GSSP) for the base of the Bartonian Stage (Paleogene System, Eocene Series). In: Koeberl, C.; Claeys, P.; Montanari, A. (2022). From the Guajira Desert to the Apennines, and from Meditarranean Microplates to the Mexican Killer Asteroid: Honoring the Career of Walter Alvarez. Geological Society of America. https://doi.org/10.1130/2022.2557(16)
Kochhann, M.V.L.; Savian, J.F.; Tori, F.; Catanzariti, R.; Coccioni, R.; Frontalini, F.; Jovane, L.; Florindo, F.; Monechi, S. (2021). Orbital tuning for the middle Eocene to early Oligocene Monte Cagnero Section (central Italy): paleoenvironmental and paleoclimatic implications. Palaeogeography, Palaeoclimatology, Palaeoecology. https://doi.org/10.1016/j.palaeo.2021.110563
Kochhann, M.V.L.; Cagliari, J.; Kochhann, K.G.D.; Franco, D.R. (2020). Orbital and millennial-scale cycles paced climate variability during the Late Paleozoic Ice Age in the southwestern Gondwana. Geochemistry, Geophysics, Geosystems. https://doi.org/10.1029/2019GC008676
For a complete list of publications, please check here
Contact information
Institute of Geosciences
University of São Paulo
Brazil
Mob: +55 51 998708427
Email: marcus.kochhann@usp.br
A complete CV (Portuguese only) is available here