Daniel Weller
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View article: Magmatic immiscibility provides phosphate for prebiotic chemistry
Magmatic immiscibility provides phosphate for prebiotic chemistry Open
Phosphorus is essential for extant and nascent life. However, phosphate’s low terrestrial abundance and the poor aqueous solubility of phosphorus-bearing minerals pose major hurdles for prebiotic chemistry. Here, we show that silicate-phos…
View article: Crystal Organisation of Muscle Attachment Sites of Bivalved Marine Organisms: A Juxtaposition Between Brachiopod and Bivalved Mollusc Shells
Crystal Organisation of Muscle Attachment Sites of Bivalved Marine Organisms: A Juxtaposition Between Brachiopod and Bivalved Mollusc Shells Open
The movement of valves of bivalved invertebrates is enabled through the action of muscles and the interplay between the muscles and the hinge ligament. The muscles that move the valves attach to their internal surface. To promote the struc…
View article: Visualization and semi-quantitative analysis of dissolution processes at artificial structures in carbonate rocks using optical, 3D micro-scanning and confocal laser scanning microscopy
Visualization and semi-quantitative analysis of dissolution processes at artificial structures in carbonate rocks using optical, 3D micro-scanning and confocal laser scanning microscopy Open
The Northern Alpine Foreland Basin in southeast Germany hosts more deep geothermal plants than any other region in the country. Its primary aquifer, the Upper Jurassic, is composed of permeable carbonates containing water with temperatures…
View article: Immiscible basaltic glasses – a prebiotic phosphate source
Immiscible basaltic glasses – a prebiotic phosphate source Open
Phosphorus is an essential element of life, as observable in modern life forms that have perfected phosphorus accumulation and recycling. Prebiotic chemistry, on the other hand, was likely challenged by the low abundance and poor solubilit…
View article: Heat flows solubilize apatite to boost phosphate availability for prebiotic chemistry
Heat flows solubilize apatite to boost phosphate availability for prebiotic chemistry Open
Phosphorus is an essential building block of life, likely since its beginning. Despite this importance for prebiotic chemistry, phosphorus was scarce in Earth’s rock record and mainly bound in poorly soluble minerals, with the calcium-phos…
View article: Heat flows solubilize apatite to boost phosphate availability for prebiotic chemistry
Heat flows solubilize apatite to boost phosphate availability for prebiotic chemistry Open
Phosphorus is an essential building block of the most prominent biomolecules, such as polynucleic acids, and has likely played that role since the beginning of life. Despite this importance for prebiotic chemistry, phosphate could not be s…
View article: The role of pre-eruptive bubble characteristics in modulating andesitic magma fragmentation
The role of pre-eruptive bubble characteristics in modulating andesitic magma fragmentation Open
Various processes involving nucleation, growth, and interaction of bubbles occur as water-rich magma —e.g., of andesitic composition— ascends through a volcanic conduit towards shallower depths. These mechanisms significantly a…
View article: Fragmentation behavior of young pyroclasts from Mt. Pelée, Martinique
Fragmentation behavior of young pyroclasts from Mt. Pelée, Martinique Open
The stratovolcano Mt. Pelée, Martinique, exhibits eruptive styles ranging from dome formation to sustained, highly violent explosive activity. Historical eruptions have produced lava domes and pyroclastic density currents, collectively ter…
View article: Eruption Record and Aspects of Magma Genesis and Evolution for Volcanoes of the Southernmost Andean Southern Volcanic Zone, Chile
Eruption Record and Aspects of Magma Genesis and Evolution for Volcanoes of the Southernmost Andean Southern Volcanic Zone, Chile Open
Sediment cores from twelve lakes located to the east of the volcanic front of the southernmost portion of the Andean Southern Volcanic Zone (SSVZ) preserve greater than 75 late Pleistocene to Holocene tephras derived from different explosi…