Dr. Alexandra Turchyn is a researcher at the Department of Earth Sciences, University of Cambridge. Her work focuses on isotope geochemistry and biogeochemical cycles, particularly through sedimentary processes and carbon-sulfur-iron interactions. She supervises projects related to global biogeochemical cycles, submarine basalt weathering, sedimentary diagenesis, and geomicrobiology. Key research tools: stable isotope mass spectrometers Recent interests: calcium and strontium isotopes in sedimentary systems Methodological innovation: reactive transport modeling for subsurface process quantification Her group investigates how planetary environments evolve through isotopic, chemical, and mineralogical analyses of modern and ancient sediments, pore fluids, and rocks. Current projects include development of new methods for gas isotope ratio measurements in SO 2 and CO 2 using advanced laboratory equipment. Major research themes include: Carbon cycle evolution across Earth history Climate change reconstruction through geochemical proxies Subsurface biogeochemical processes Isotope fractionation in natural systems Contact: atur07@esc.cam.ac.uk
Dr. Tim Patterson is a Professor of Environmental Geology at Carleton University's Department of Earth Sciences within the Faculty of Science. His research focuses on paleoclimatology, limnology, and geochemistry, employing micropaleontological, sedimentological, and geochemical techniques. Key areas include studying Holocene lake and marine paleoclimate records, assessing climate variability's impact on aquatic ecosystems, evaluating land-use change effects on lake/coastal-marine ecosystems, and evaluating ecosystem remediation success. Leading the Patterson Laboratory, affiliated with the Carleton Climate and Environmental Research Group (CCERG), Global Water Institute (GWI), and Carleton Northern Studies Program. Notable work includes defining the Anthropocene boundary using Crawford Lake's varved sediments and investigating road salt contamination, arsenic bioindicators, and Itrax-XRF core scanning methodologies. Research highlights include contributions to understanding Holocene climate variability, anthropogenic impacts on aquatic systems, and innovative methodologies for high-resolution sediment analysis. His lab develops tools like freeze core microtomes and FlowCam technology for rapid ecological assessments. Publications span 40+ years, with recent emphasis on Anthropocene stratigraphy, subarctic resilience, and heavy metal contamination in northern ecosystems. Collaborations include ArcticNet and Northern geoscience projects.
Dr. Marcia Schulmeister serves as Director and Teaching Professor in the Environmental Geology Programs at the University of Kansas Edwards Campus, with a dual appointment in the Department of Geology. With over 30 years of experience, she specializes in applied hydrogeology and geochemistry, focusing on contaminated site remediation and groundwater management. Her professional work spans government agencies in the U.S., China, Thailand, and Germany, addressing soil and groundwater contamination challenges. Dr. Schulmeister holds prestigious titles including Fellow of the Geological Society of America and Fulbright Scholar. She contributes to academic leadership as associate editor for professional journals and serves on multiple boards. Her research explores innovative methods like electrical resistivity tomography and direct-push geochemical profiling, with recent emphasis on virtual geology education and international environmental projects in Thailand and Vietnam. Key Expertise: Hydrogeology field methods, contaminant transport modeling, karst terrain studies International Experience: Collaborations in China, Thailand, Germany, and Vietnam Teaching Innovation: Pioneering online geoscience education for non-traditional students Her work integrates field-based learning through the Robert P. Harrison Field Station and virtual museum tours. Current research trends emphasize climate change impacts on groundwater systems and geohazard mitigation for infrastructure protection.
Farzan Kazemifar is an Associate Professor and Associate Chair in the Department of Mechanical Engineering at San José State University, where he also serves as Director of the SJSU Industrial Assessment Center. His academic background includes a Ph.D. in Mechanical Engineering from the University of Illinois at Urbana-Champaign, an M.Sc. in Mechanical Engineering from the same institution, and a B.Sc. in Mechanical Engineering from Sharif University of Technology. Dr. Kazemifar's research focuses on thermal energy systems and energy efficiency in buildings, with specialized expertise in multiphase flow, porous media dynamics, and carbon capture technologies. His work integrates experimental methods with theoretical modeling to address challenges in sustainable energy and environmental applications. His 15 most recent publications demonstrate a consistent focus on fluid dynamics in porous media, particularly examining CO2-water interactions for carbon sequestration applications. These studies utilize advanced micro-PIV techniques to quantify flow phenomena at pore scales, contributing to improved understanding of multiphase flow regimes under reservoir conditions. Dr. Kazemifar directs the Industrial Assessment Center, which focuses on energy efficiency solutions for industrial applications. No information is available regarding student advising, research grants, or specific laboratory facilities.
Eduard Gordon Reinhardt is a full professor at McMaster University's School of Earth, Environment and Society, specializing in marine geoarchaeology and paleoclimatology. He joined McMaster in 1998 as an assistant professor, advancing to full professorship. His research focuses on coastal environmental change, climate-sea level interactions, and underwater archaeological sites in the Mediterranean, Middle East, and Mesoamerica (Yucatan Peninsula). Education: B.A. Honours in Directed Interdisciplinary Studies (Marine Geoarchaeology), Carleton University (1989–1993) PhD in Earth Sciences (Senate Medal recipient), Carleton University (1993–1996) Postdoctoral fellowships (Killam and NSERC), Dalhousie University (1996–1998) Research Interests: Marine geoarchaeology and submerged cave systems Reconstructing paleoenvironments using sediment cores and isotopic analysis Impact of climate change on human populations Geochemical proxies (e.g., μXRF, clumped isotopes) His work integrates geology, archaeology, and environmental science to explore human-environment interactions. Key Research Trends: Recent articles emphasize tropical cyclone impacts in Mesoamerica, Maya/Paleoindian site access via submerged caves, and Holocene sea-level changes. Methods include high-resolution core scanning (Itrax XRF) and isotopic analysis. Awards: Senate Medal for PhD research (Carleton University) Teaching & Fieldwork: Instructs courses in Paleoecology, Coral Reef Environments, and Advanced Paleoenvironmental Analysis. Leads field studies in karst systems (e.g., Yucatan Peninsula) and coastal archaeological sites. Labs/Teams: Active in McMaster's geoarchaeology and paleoclimatology research groups, collaborating on projects involving underwater cave systems and ancient harbors (e.g., Caesarea Maritima, Israel).
Eirik Keilegavlen is a Researcher at the Department of Mathematics, University of Bergen. His primary research focuses on developing mathematical models, numerical methods, and simulation tools for multiphysics processes in porous media, particularly in geothermal energy, CO 2 storage, and subsurface energy systems. He leads the development of the open-source software PorePy, designed for simulating processes in fractured porous media. His work emphasizes coupled problems involving fluid flow, heat transfer, and mechanical deformation. Key research interests include: Mathematical modeling of coupled thermal-hydro-mechanical processes Numerical discretization methods for fractured media Development of open-source simulation tools Applications in geothermal energy extraction and carbon sequestration Recent publications highlight advancements in: Uncertainty quantification for CO 2 leakage Viscous fingering in fractured reservoirs Automated solver selection for multiphysics systems Collaborations involve interdisciplinary teams addressing challenges in geothermal reservoir stimulation, fault mechanics, and high-performance computing. His work bridges theoretical developments with practical applications in energy and environmental systems.
John Lee is a Professor and Regents Professor in the Harold Vance Department of Petroleum Engineering at Texas A&M University, holding the Kelly L. '87 and William D. '87 Von Gonten, Jr. Chair. A member of the National Academy of Engineering, his research focuses on reservoir engineering and carbon storage technologies. Dr. Lee's educational background includes a Ph.D. in Chemical Engineering from Georgia Institute of Technology. His current research investigates enhanced oil recovery, carbon sequestration optimization, and geomechanical responses during CO2 injection. Recent publications focus on machine learning applications for reservoir management and experimental studies on caprock integrity. His articles consistently address challenges in carbon storage engineering, with recent work developing co-optimization frameworks and pressure management strategies for CCS projects. Publication trends show increasing focus on geochemical monitoring and machine learning applications in reservoir characterization. Lee has received numerous honors including the DeGolyer Distinguished Service Medal and Anthony F. Lucas Gold Medal. His research team develops novel experimental methods to evaluate reservoir rock behavior under injection conditions.
Jordan A.G. Wostbrock is an Assistant Professor at Yale University specializing in Stable Isotope Geochemistry. His research focuses on using triple oxygen isotope techniques to investigate interactions between land, ocean, and atmosphere, with particular emphasis on paleoclimate and paleoenvironmental reconstructions. He explores how these isotopic methods can quantify biogeochemical cycling changes and inform understanding of climate impacts on life historically and under current anthropogenic pressures. Key research themes include Marine Climate Proxies (e.g., carbonate temperature reconstructions in the Late Cretaceous Western Interior Seaway), Terrestrial Climate Proxies (e.g., grass phytoliths for paleohumidity), and Diagenetic Processes (e.g., analyzing Bahama Platform carbonates to distinguish primary signals from diagenetic overprints). His work addresses critical questions about extreme past SSTs, habitat adaptability, and the reliability of rock records amid fluid-rock interactions. Recent projects involve reconstructing temperature and preservation histories of Phanerozoic chert, Shuram carbon isotope excursions, and using bioapatite to study animal heat stress. Methodological advancements include developing triple oxygen isotope calibrations for silica-water systems and optimizing sample analysis via TILDAS instrumentation. His interdisciplinary approach bridges geochemistry, paleontology, and planetary science, with applications to Mars sample analysis and Earth's atmospheric evolution.
Anastassiya Tchaikovsky is a postdoctoral researcher at the Institute of Analytical Chemistry, Department of Natural Sciences and Sustainable Resources, University of Natural Resources and Life Sciences, Vienna (BOKU). She holds a PhD in analytical chemistry and has an extensive research background in elemental and isotopic analysis, particularly using ICP-MS techniques. Her work spans food authentication, environmental forensics, and trace metal speciation. Her research interests include: Inductively Coupled Plasma Mass Spectrometry (ICP-MS) Chemometrics and multivariate data analysis Isotopic and elemental fingerprinting for provenance determination Metrology and method validation Separation techniques coupled to mass spectrometry Applications in food science, ecology, and human health Her recent publications demonstrate a strong trend toward interdisciplinary applications of analytical chemistry, particularly in verifying the geographical origin of food products (e.g., carrots, caviar, fish) using combined isotopic, elemental, and metabolomic fingerprints. She frequently employs chemometric modeling and data fusion techniques to enhance discrimination power. Her work also extends to biomedical applications, such as iron metabolism in neurodegenerative diseases and lead detoxification. She has received multiple scientific awards, including: Scholarship for a postdoc mentoring program (2019) Best talk award at DocDay, Tulln (2014) ESF-Studienabschluss scholarship (2013) Merkur scholarship from TU Vienna (2013) Best student lecture award at ICPMS Anwendertreffen (2012) Science scholarship from TU Vienna (2012) She has been involved in several research projects funded by the European Commission, Austrian federal and local governments, and private institutions. Her collaborative work includes advising on fish migration, caviar traceability, and citizen science initiatives like IsoPROTECT. She actively presents her research at international conferences and contributes to knowledge transfer in food safety and analytical methodology. She is affiliated with the Institute of Analytical Chemistry at BOKU and has no listed advisees, though she collaborates extensively with senior researchers and interdisciplinary teams.
Bjarte Hannisdal is an Associate Professor in the Department of Geosciences at the University of Bergen, Norway, and affiliated with the Bjerknes Centre for Climate Research. He plays a key leadership role in iEarth, a national Centre of Excellence in geoscience education, serving as the iEarth Education Chair and Head of Focus Area 1, which aims to develop innovative frameworks for higher education in geosciences. Department of Geosciences, University of Bergen Bjerknes Centre for Climate Research iEarth – Centre of Excellence in Geoscience Education His research lies at the intersection of geobiology, paleontology, and Earth system science, with a strong focus on quantitative methods. He investigates Earth system evolution, causality in dynamical systems, and the co-evolution of life and the planet using advanced statistical and information-theoretic approaches applied to geological and fossil records. His work spans microbial ecology in deep-sea sediments, paleoclimatology through isotope analysis, and the detection of causal interactions in deep time. Hannisdal has made significant contributions through a high-impact publication record, with articles in top journals such as Science , Nature Geoscience , PNAS , and Physical Review E . His recent publications highlight trends in applying machine learning and information theory to geoscience problems, including microbial responses to oxygen, causality detection in incomplete records, and the calibration of geochemical proxies. These works reflect a strong interdisciplinary trend, integrating biology, physics, and computational methods into Earth sciences. He is actively involved in higher education, having developed and taught courses such as GEOV114 (Introduction to Geobiology) and GEOV302 (Data Analysis in Geosciences), and contributes to others like GEOV344 and BIO318. His educational research explores student-centered learning and computational skill development. He has supervised doctoral research, including Dario Blumenschein’s project on educational change. His work is supported by funding from the Research Council of Norway, Trond Mohn Foundation, and EU Horizon 2020. Hannisdal collaborates widely across institutions and disciplines, as evidenced by his co-authorship with researchers from Norway, the US, Germany, and others.
R. Wirth is a senior researcher in the Department of Geochemistry at the Deutsches GeoForschungsZentrum (GFZ), Potsdam, Germany, specifically within the 3.5 Interface Geochemistry group. Previously, he was affiliated with the 3.6 Chemistry and Physics of Earth Materials group at the same institution. He is actively engaged in cutting-edge research involving nanoscale analysis of geological materials using transmission electron microscopy (TEM) and other advanced microanalytical techniques. The research interests of R. Wirth span a broad range of topics in geochemistry and mineralogy, including interface geochemistry, shock metamorphism, hydrothermal alteration, nanomineralogy, high-pressure mineral physics, and the formation and transformation of Earth materials. His work frequently addresses fundamental questions in petrology, economic geology, and planetary science, often focusing on the micro- to nano-scale processes that govern mineral behavior under extreme conditions. An analysis of Wirth's recent publications reveals a strong trend toward interdisciplinary geochemical research, combining advanced analytical methods with field and experimental studies. His work often involves collaboration with international teams and contributes to understanding geological processes such as impact cratering, mantle metasomatism, ore formation, and fossilization. The keywords and subfields from his articles highlight a consistent focus on microstructures, phase transitions, fluid-rock interactions, and the application of high-resolution microscopy in Earth sciences. R. Wirth has made significant contributions to the scientific community through his extensive publication record in high-impact journals such as Geology , American Mineralogist , and Contributions to Mineralogy and Petrology . His research has advanced the understanding of mineral behavior at the nanoscale, with implications for resource exploration, planetary science, and fundamental geochemical processes. Although no specific grants or advising roles are mentioned in the provided text, his collaborative publication pattern suggests an active role in research teams and scientific networks. His laboratory work is centered on advanced electron microscopy techniques at GFZ, where he likely leads or is a key member of a research team specializing in nanogeoscience. The consistent use of TEM, EELS, and microdiffraction in his studies indicates a well-equipped and specialized laboratory environment focused on high-resolution characterization of geological materials.
Oscar Branson is an Official Fellow and Director of Studies in Natural Sciences (Earth Sciences) at Queens' College, University of Cambridge. His academic career focuses on understanding Earth's climate history through the study of marine microfossils and biogeochemical processes. His research spans several key areas: Paleoclimatology and paleoceanography Biomineralization processes in marine organisms Geochemical proxies for reconstructing past climate conditions Foraminifera ecology and geochemistry Elemental and isotopic composition of marine carbonates Climate change impacts on marine ecosystems Branson's recent publications demonstrate a strong focus on understanding the fundamental mechanisms behind geochemical proxy systems used in paleoclimate research. His work combines detailed laboratory analyses with field observations to improve our understanding of how marine organisms incorporate chemical signatures into their shells. His research has particular relevance for understanding how current climate change compares to natural variability in Earth's history. Among his notable contributions are advancements in understanding boron isotopes as pH proxies, the mechanisms behind magnesium-calcium ratios as temperature proxies, and the role of symbionts in controlling elemental incorporation in marine microfossils. His methodological innovations, including the development of the Kgen algorithm for carbonate chemistry calculations, have provided new tools for the paleoclimate research community. As Director of Studies in Earth Sciences at Queens' College, Branson plays a key role in undergraduate education and mentorship within the Natural Sciences Tripos at the University of Cambridge.
Carl Regnéll is a Senior Lecturer in Geosciences at Kristianstad University's Faculty of Natural Sciences, Department of Environmental Sciences, where he leads the Sustainable multifunctional landscapes (SMULA) research group. With a PhD and an h-index of 7 based on 205 citations, he has published 41 research outputs with significant activity in recent years, including 12 publications in 2024 and 2 in 2025. His educational background includes advanced training in Quaternary geology and geoscience methodologies, though specific degrees are not detailed in the available information. His research focuses on glacial and climate history during the last ice age cycle with particular emphasis on Scandinavian landscape development. Dr. Regnéll employs a wide range of methods including sediment sampling from terrestrial climate archives, geomorphological and sedimentological mapping, and spatial analyses using Geographic Information Systems (GIS). His laboratory work involves analyzing sediment geochemical and physical properties through techniques like grain size analysis, loss on ignition (LOI), X-ray fluorescence (XRF), and computed tomography (CT scan). For dating, he utilizes carbon-14 dating of macrofossils, cosmogenic exposure dating, tephrachronology, optically stimulated luminescence (OSL), and Uranium-Thorium dating. His recent publications reveal a strong focus on ice sheet dynamics, deglaciation processes, and landscape evolution in Scandinavia, with particular interest in ice-dammed lakes, varve chronology, and sedimentary ancient DNA applications. These works span disciplines including glaciology, geomorphology, paleoclimatology, and Quaternary science, with specific attention to methodological advances in dating techniques and multi-proxy sediment analysis. Dr. Regnéll currently leads two major research projects: The role of ice-dammed lakes in ice sheet demise (2021-2025) and Ice Age pioneers – Sediment DNA provides new knowledge about our oldest ecosystems (2023-2025). His academic service includes peer review for journals like Quaternary Science Reviews and Norwegian Journal of Geology, participation in the Geological Society of Sweden, and organization of scientific events such as the Processes and Palaeo–Environmental Changes in the Arctic conference in 2024. At Kristianstad University, he teaches geosciences and geographic information systems (GIS), contributing to education in earth sciences and environmental studies. His research aligns with UN Sustainable Development Goals related to environmental protection and climate action.
Naomi Levin is a Professor in the Department of Earth and Environmental Sciences at the University of Michigan, serving as an EARTH Community Advocate. She holds affiliations with the International Institute and African Studies Center. Levin earned her B.S./B.A. in Geology and Anthropology from Stanford University (2000), M.S. from the University of Arizona (2002), Ph.D. in Geology from the University of Utah (2008), and completed postdoctoral work at Caltech (2009). Previously, she was an Assistant Professor at Johns Hopkins University (2009–2016). Her research focuses on reconstructing past climate change impacts on terrestrial organisms and landscapes, employing stable isotopic records from sedimentary archives and modern analog studies. Key projects include environmental reconstructions in Ethiopia’s Afar region (e.g., Hadar and Woranso-Mille), Peruvian lake/cave systems, and U.S. drylands. She leads the Levin Research Group within the Iso Paleo Lab, emphasizing triple oxygen isotope analysis in soil carbonates, speleothems, and biological tissues. Levin’s work integrates fieldwork, laboratory analyses, and computational modeling. Recent efforts include collaborations on hominin habitat studies in Ethiopia, hydrologic dynamics in the Amazon Basin, and soil carbonate formation mechanisms. She emphasizes interdisciplinary approaches, training students in field geology, geochemical techniques, and paleoenvironmental interpretation. Her advising includes PhD candidate Million Mengesha, and she actively engages in global research networks. Levin’s lab hosts undergraduate, graduate, and postdoctoral researchers, fostering a collaborative environment for addressing climate change’s historical and contemporary impacts.
Olaf A. Cirpka is a Full Professor of Hydrogeology at the University of Tübingen, Germany, within the Faculty of Science's Department of Geosciences. He holds a Diploma in Geoecology (University of Karlsruhe, 1992) and a Doctor of Engineering in Civil Engineering (University of Stuttgart, 1997). His career includes postdoctoral research at Stanford University (1998–2000), adjunct roles there until 2009, and leadership roles such as Head of the Emmy-Noether Junior Research Group (2000–2004) and Subsurface Hydrology Workgroup at Eawag (2004–2008). He is a Fellow of the American Geophysical Union (2015) and served as Spokesperson for the Research Training Group 1829 (2012–2021). Research Interests: His work focuses on subsurface hydrology, reactive transport modeling, biogeochemical processes in aquifers, and climate impacts on groundwater systems. He integrates numerical modeling, field experiments, and geophysical methods to address challenges in contaminant fate, hyporheic zone dynamics, and sustainable groundwater management. Articles Trends: Recent publications emphasize innovative methods for quantifying subsurface processes (e.g., VTraFlux, electrical conductivity tracers), climate-driven groundwater changes, and microbial-driven biogeochemical reactions. His work bridges experimental hydrology with computational tools to advance understanding of complex environmental systems. Awards & Grants: AGU Fellowship (2015) highlights his scientific contributions. He has led numerous research initiatives, including the Advect As project on arsenic dynamics and the Research Training Group on integrated hydrosystem modeling. Grants and collaborations span interdisciplinary environmental research. Labs & Teams: Directs the Hydrogeology group at Tübingen and collaborates with international institutions like Stanford, ETH Zürich, and Eawag. His research integrates field campaigns, lab experiments, and numerical simulations to address real-world hydrogeological challenges.
