Thammy MottinUniversidade Federal do Paraná | UFPR · Department of Geology
Thammy Mottin
Master of Science
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26
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Introduction
Thammy Mottin currently works at the Department of Geology, Universidade Federal do Paraná. Their current project is 'Revisiting the glacial geological records of the Late Paleozoic Ice Age in SW Gondwana.'
Skills and Expertise
Additional affiliations
December 2017 - December 2021
April 2015 - March 2017
Publications
Publications (26)
Glaciation and deglaciation elevate the probability of subaquatic landslides in marine and lacustrine basins. Glacial-related factors contributing to instability include base-level changes, high sedimentation rates, meltwater floods, and seismic activity linked to glacioisostatic adjustments (GIA). These mechanisms have been studied as potential tr...
The late Paleozoic glacial-to-postglacial turnover evolved complexly across Gondwana. Successions bearing
volcaniclastic material that can be radiometrically dated provide crucial information about the timing of those climate
events. The southernmost part of the Paraná Basin, for instance, has a high-precision geochronological framework.
The easter...
The Pennsylvanian on the western rim of Gondwana can be considered a time of significant contrasts in terms of environments, revealing a unique translatitudinal disposition of the South American continent, where glaciomarine deposits and peat-forming environments, situated farther south, coexisted with marine carbonate platforms and eolian dune fie...
The rooted nature of vegetation allows for individual plants or entire communities to be buried in life position under exceptional geological conditions, thereby preserving their ecology and spatial distribution in the stratigraphic record. Upright lycopsids are not uncommon within paleoequatorial Carboniferous coal-bearing deposits, but they are r...
Mass transport deposits (MTDs) contain deformation structures often that are used to determine the kinematics of palaeo-mass flows and hence the orientation of the original slope or gradient upon which the mass flow developed. When integrated with stratigraphic data, the azimuth of the palaeoslope can help elucidate the depositional evolution and p...
A Glaciação Neopaleozoica e a transição completa para condições pós-glaciais são considerados eventos climáticos únicos na história geológica. O principal registro de tais eventos está nas bacias sedimentares gondwânicas, que sugerem uma glaciação dinâmica marcada por repetidos períodos glaciais e interglaciais. A Bacia do Paraná abriga o registro...
Os depósitos de transporte em massa (MTDs) resultam de importantes processos de remobilização e ressedimentação em ambiente subaquático. Esses depósitos são recorrentes ao longo de seção estratigráfica do Grupo Itararé. Portanto, são considerados importantes elementos deposicionais para compreender a evolução tectonoestratigráfica da Bacia do Paran...
The Itararé Group, the Permocarboniferous unit of the brazilian Paraná Basin, encloses the record of the most prominent and widespread glaciation of the Phanerozoic Eon, the Late Paleozoic Ice Age (LPIA). Despite holding the thickest and geographically more extensive record of the referred glaciation, the Itararé Group has scarce marine fossils wit...
The response of sediment routing to climatic changes across icehouse-to-greenhouse turnovers is not well documented in Earth’s pre-Cenozoic sedimentary record. Southwest Gondwana hosts one of the thickest and most laterally extensive records of Earth’s penultimate icehouse, the late Paleozoic ice age. We present the first high-resolution U-Pb zirco...
The demise of the Late Paleozoic Ice Age has been hypothesized as diachronous, occurring first in western South America and progressing eastward across Africa and culminating in Australia over an ~60 m.y. period, suggesting tectonic forcing mechanisms that operate on time scales of 106 yr or longer. We test this diachronous deglaciation hypothesis...
Os capítulos estudantis vinculados à American Association of Petroleum Geologists (AAPG) visam unir estudantes de graduação e pós-graduação com a indústria petrolífera por meio de oportunidades de networking promovidas por palestras, minicursos e participações em eventos científicos. Em menos de um ano de atividade, o UFPR AAPG Student Chapter ofer...
The late Bashkirian to lower Sakmarian deposits of the Itararé Group (Paraná Basin, southern Brazil) compose the thickest, most extensive and one of the longest records of the Late Paleozoic Ice Age (LPIA) among the late Paleozoic glaciated basins. The upper Itararé Group (Taciba Formation) cropping out in the northeast Paraná State is studied and...
This paper examines a glacial diamictite-bearing succession from the upper Itararé Group (Taciba Formation) in eastern Paraná Basin, Brazil. The object of study provides the opportunity to investigate in detail the late stages of glacial sedimentation during the Late Paleozoic Ice Age (LPIA) in this sector of SW Gondwana, with implications for glac...
RESUMO: Depósitos de transporte em massa, formados por fluxos gravitacionais em massa, são extremamente variáveis e apresentam complexo registro estrutural ainda não bem compreendido. O entendimento desses depósitos, tanto sobre o aspecto estratigráfico quanto estrutural, tem importância no estudo paleoambiental e paleogeográfico de depósitos antig...
The Late Paleozoic Ice Age (LPIA) comprises multiple glacial events 1 to 8 My-long alternated with non-glacial periods that occurred from the Visean (Mississipian) to the earliest-middle-Late Permian. In this context, mass-transport deposits (MTDs) are frequent in the stratigraphic record of the LPIA and have been reported in many basins across the...
In this contribution we explore recent advances from ongoing research on the interplay between tectonics and climate in the evolution of the Paraná Basin from the mid-late Carboniferous to the earliest Permian, a time characterized by intense climatic and tectonic instabilities in SW Gondwana. Latest Devonian to Pennsylvanian uplifting on the easte...
RESUMO: Injectitos são intrusões de sedimentos, principalmente areia, causadas pelo aumento da pressão de fluidos, liquefação dos sedimentos e sua injeção na rocha encaixante. Comumente denominados de diques clásticos, essas estruturas podem ocorrer também na forma soleiras ou corpos irregulares ou como vulcões sedimentares quando há extravasamento...
O clímax da era glacial neopaleozoica ocorreu no Pensilvaniano (Neocarbonífero), cujos registros acham-se em bacias de vários continentes. Por outro lado, registros eopermianos de glaciação, que testemunham o final da era glacial, são relativamente mais raros e menos compreendidos dentro do contexto paleogeográfico gondwânico. Neste trabalho é anal...
RESUMO: Grande parte do potencial exploratório da Bacia do Paraná deve-se a ocorrências de gás e uma acumulação subcomercial associadas ao sistema petrolífero Ponta Grossa – Itararé, em que os reservatórios são unidades arenosas permocarboníferas do Grupo Itararé. Caracteristicamente, este grupo é formado por sequências essencialmente retrogradacio...
Universidade Federal do Paraná RESUMO: O uso de tecnologias computacionais na realização de tarefas complexas, como é o caso da geração de diagramas estereográficos (estereogramas), proporciona grande agilidade para as etapas de interpretação e análise de dados geológicos estruturais coletados em campo. Existe uma grande variedade de aplicações do...
