Dr. Athanasios Godelitsas School of Science National and Kapodistrian University of Athens

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Selected Discoveries Discovery of bridgmanite, the most abundant mineral in Earth, in a shocked meteorite Evidence for arsenic metabolism and cycling by microorganisms 2.7 billion years ago Mineralogy of the Martian Surface Nanoscopic X-ray Fluorescence Imaging of Meteoritic Particles and Diamond Inclusions Short eruption window revealed by absolute crystal growth rates in a granitic magma Hydrous mantle transition zone indicated by ringwoodite included within diamond Supervolcano eruptions driven by melt buoyancy in large silicic magma chambers Evidence for biogenic graphite in early Archaean Isua metasedimentary rocks Carbon substitution for oxygen in silicates in planetary interiors Noble metal nanoclusters and nanoparticles precede mineral formation in magmatic sulphide melts Ponded melt at the boundary between the lithosphere and asthenosphere The coordination of Mg in foraminiferal calcite Analysis of Surface Materials by the Curiosity Mars Rover & Science cover Formation of the world's largest REE deposit Readily available phosphate from minerals in early aqueous environments on Mars Surface chemistry allows for abiotic precipitation of dolomite at low temperature Subduction-zone earthquake complexity related to frictional anisotropy in antigorite Feeding andesitic eruptions with a high-speed connection from the mantle Redox Heterogeneity in Mid-Ocean Ridge Basalts as a Function of Mantle Source & Science cover Evidence for reactive reduced phosphorus species in the early Archean ocean Vaterite Crystals Contain Two Interspersed Crystal Structures Speleothems Reveal 500,000-Year History of Siberian Permafrost Stagnation of subducting slabs in the transition zone due to slow diffusion in majoritic garnet A Natural Topological Insulator & Lab-made supermaterial that could boost computing exists in nature too Rhenium variations in molybdenite (MoS2): Evidence for progressive subsurface oxidation Unique Meteorite from Early Amazonian Mars: Water-Rich Basaltic Breccia Northwest Africa 7034 & Meteorite carries ancient water from Mars Buddha from space - An ancient object of art made of a Chinga iron meteorite fragment & Iron man's impact Direct measurement of hydroxyl in the lunar regolith and the origin of lunar surface water Magmatic precipitation as a possible origin of Noachian clays on Mars & BBC News Deep carbon export from a Southern Ocean iron-fertilized diatom bloom Solid-liquid iron partitioning in Earth's deep mantle Microbial nucleation of Mg-rich dolomite in exopolymeric substances under anoxic modern seawater salinity: New insight into an old enigma Direction-Specific Interactions Control Crystal Growth by Oriented Attachment & relevant video on Youtube The Role and Implications of Bassanite as a Stable Precursor Phase to Gypsum Precipitation An ikaite record of late Holocene climate at the Antarctic Peninsula Experimental determination of bulk modulus of 14 A tobermorite using high pressure synchrotron X-ray diffraction Tranquillityite: The last lunar mineral comes down to Earth & Rare Moon Mineral Found on Earth Evidence for the extraterrestrial origin of a natural quasicrystal Earth's Redox History & Isotopic Evidence for Massive Oxidation of Organic Matter Following the Great Oxidation Event Chemical bonding between tectonic plates & Frictional ageing from interfacial bonding and the origins of rate and state friction Criticality of Non-Fuel Minerals Subsurface water and clay mineral formation during the early history of Mars A depolarizer as a possible precise sunstone for Viking navigation by polarized skylight The Major-Element Composition of Mercury's Surface & Radioactive Elements on Mercury's Surface Aerobic bacterial pyrite oxidation and acid rock drainage during the Great Oxidation Event Dust- and mineral-iron utilization by the marine dinitrogen-fixer Trichodesmium Arsenic migration to deep groundwater in Bangladesh influenced by adsorption and water demand & Natural processes can limit spread of arsenic in water Deep Mantle Cycling of Oceanic Crust & Diamond Illumines Carbon Cycling & Univ. Bristol News Icosahedrite, Al63Cu24Fe13 the first natural quasicrystal & Natural Quasicrystals & Chemistry World A 3500-Year Record of Hg and Pb Contamination in a Mediterranean Sedimentary Archive Characterization of Eyjafjallajokull volcanic ash particles and a protocol for rapid risk assessment & BBC News & Chemistry World Dispersal and Attenuation of Trace Contaminants Downstream of the Ajka Bauxite Residue (Red Mud) Depository Failure, Hungary Microbially Mediated Mineral Carbonation: Roles of Phototrophy and Heterotrophy Distinctive Arsenic(V) Trapping Modes by Magnetite Nanoparticles Induced by Different Sorption Processes Biogenic Fe(III) Minerals Lower the Efficiency of Iron-Mineral-Based Commercial Filter Systems for Arsenic Removal Quantitative Chemical Imaging of Element Diffusion into Heterogeneous Media Using LA-ICPMS, Synchrotron Micro-XRF, and EXAFS Itokawa Dust Particles: A Direct Link Between S-Type Asteroids and Ordinary Chondrites Deep-sea mud in the Pacific Ocean as a potential resource for rare-earth elements Lead Speciation in House Dust from Canadian Urban Homes Using EXAFS, Micro-XRF, and Micro-XRD Convergent Cenozoic CO2 history Partial radiogenic heat model for Earth revealed by geoneutrino measurements & KamLAND The tungsten isotopic composition of the Earth's mantle before the terminal bombardment & BBC News The Deep Carbon Observatory & DCO Hydrothermal vents as a kinetically stable source of iron-sulphide-bearing nanoparticles to the ocean Source and Nature of Inhaled Atmospheric Dust from Trace Element Analyses of Human Bronchial Fluids The complete mitochondrial DNA genome of an unknown hominin from southern Siberia Biomineralization: A crystal-clear view De Novo Design of Peptide-Calcite Biomineralization Systems Asprich Peptides Are Occluded in Calcite and Permanently Disorder Biomineral Crystals A Draft Sequence of the Neandertal Genome Sea-Level Highstand 81000 Years Ago in Mallorca The Role of Ammonites in the Mesozoic Marine Food Web Revealed by Jaw Preservation Amazonia Through Time Ocean Acidification Unprecedented, Unsettling Ocean Warming Slows Coral Growth in the Central Red Sea The Structure of Iron in Earth's Inner Core The Story of Atmospheric CO2 Measurements Nominally hydrous magmatism on the Moon Global Signatures and Dynamical Origins of the Little Ice Age and Medieval Climate Anomaly Origins of magnetite nanocrystals in Martian meteorite ALH84001 Iron solubility driven by speciation in dust sources to the ocean Controlling Biomineralization: The Effect of Solution Composition on Coccolith Polysaccharide Functionality Fluctuations in Precambrian atmospheric oxygenation recorded by chromium isotopes & Early Earth: Oxygen for heavy-metal fans The Last Glacial Maximum Vulnerability of deep groundwater in the Bengal Aquifer System to contamination by arsenic Catastrophic flood of the Mediterranean after the Messinian salinity crisis Shock-synthesized hexagonal diamonds in Younger Dryas boundary sediments & Mammoth-Killer Impact Flunks Out Water and the Oxidation State of Subduction Zone Magmas Minerals get more complex & Interfacial Forces Are Modified by the Growth of Surface Nanostructures The Descent of Minerals & Mineral Evolution A Geological Stabilization of Carbon in the Crust Nanominerals, Mineral Nanoparticles, and Earth Systems The first hominin of Europe How the Sahara Became Dry Hydrothermal vents and the origin of life Cosmogenic nuclide dating of Sahelanthropus tchadensis and Australopithecus bahrelghazali Stable Prenucleation Calcium Carbonate Clusters & Now You See Them Toward New Uses for Hematite & Linked Reactivity at Mineral-Water Interfaces Through Bulk Crystal Conduction Age and Evolution of the Grand Canyon Revealed by U-Pb Dating of Water Table-Type Speleothems & Response to Comments Placing late Neanderthals in a climatic context Peptides Enhance Magnesium Signature in Calcite: Insights into Origins of Vital Effects Hadean diamonds in zircon from Jack Hills, Western Australia Marine Calcifiers in a High-CO2 Ocean Coral Reefs Under Rapid Climate Change and Ocean Acidification Mineralogy and Petrology of Comet 81P/Wild 2 Nucleus Samples Colloid Transport of Plutonium in the Far-Field of the Mayak Production Association, Russia The Lost City Hydrothermal Field