Biogenic calcium carbonate forms the inorganic component of seashells, otoliths, and many marine skeletons, and its formation is directed by an ordered template of macromolecules. Classical nucleation theory considers crystal formation to occur from…
Petrology
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Amphibole thermodynamics are approximated with the symmetric formalism (regular solution model for within-site non-ideality and a reciprocal solution model for cross-site-terms) in order to formulate improved thermometers for amphibole-plagioclase…
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Closure temperature (T c of a geochronological system may be defined as its temperature at the time corresponding to its apparent age. For thermally activated diffusion (D=D o e E/RT it is given by (i) in which R is the gas constant, E the…
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Carbon and hydrogen residence time in the Earth's interior is controlled by complex phase equilibria attained in the subduction zone environment. Carbonic fluid/melts are highly mobile, whereas graphite-diamond are refractory and sluggishly…
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Isotopic fingerprinting has long been used to trace magmatic processes and the components that contribute to magmas. Recent technological improvements enable us to measure the isotopic composition of progressively smaller samples. This has provided…
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The new tectonic map of the Alps is based on the combination of purely structural data with criteria regarding paleo-geographical affiliation and/or tectonometamorphic evolution. The orogenic evolution of the Alps is discussed using a combination of…
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The purpose of this study was to assess the feasibility of a standardized gaze stabilization test (GST) as an indicator of vestibular function in community-dwelling older adults and to examine the relationship between gaze stabilization and physical…
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Lawsonite eclogites preserve a record of very-low-temperature conditions in subduction zones. All occur at active margin settings, typically characterized by accretionary complexes lithologies and as tectonic blocks within serpentinite-matrix…
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The average chemical compositions of the continental crust and the oceanic crust (represented by MORB), normalized to primitive mantle values and plotted as functions of the apparent bulk partition coefficient of each element, form surprisingly…
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More and more evidence is being discovered in Phanerozoic collision belts of the burial of crustal rocks to previously unsuspected (and ever increasing) depths, presently on the order of 150-200 km, and of exhumation from such depths. This extends…
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