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Constraints on mechanisms of chondrule formation from chondrule precursors and chronology of transient heating events in the protoplanetary disk
chondrules refractory inclusions chondrule precursors transient heating
2017/4/10
The mineralogy, petrography, and oxygen-isotope compositions of porphyritic chondrules—dominant chondrule type
in most chondrite groups—suggest formation by incomplete melting of isotopically diverse...
New constraints on shergottite petrogenesis from analysis of Pb isotopic compositional space: Implications for mantle heterogeneity and crustal assimilation on Mars
shergottite Pb isotopes Martian geochemistry crustal assimilation mantle heterogeneity
2017/4/10
Geochemical studies of shergottites (Martian basalts) based on Rb-Sr, Sm-Nd, and Lu-Hf isotopic systematics have
provided clues to understanding the geochemical evolution of the Martian mantle and id...
The 3550 year BP-1944 A.D.magma-plumbing system of Somma-Vesuvius: constraints on its behaviour and present state through a review of Sr-Nd isotope data
Somma-Vesuvius magma chamber crustal contamination
2015/9/15
Vesuvius, dominating the densely-populated Neapolitan area, is one of the most dangerous volcanoes in the World. Its destructive power derives from energetic subplinian and plinian eruptions, such as ...
New constraints for site-effect characterization from seismic noise analysis in southern Italy. San Fele case study
Ambient noise Shear wave velocity profile Array measurements Seimic hazard
2015/8/28
In the framework of ground-motion amplification analysis for southern Italy, the main target of this study is to provide new constraints on one-dimensional, shallow-velocity profiles for a site in the...
Transport processes at quartz–water interfaces: constraints from hydrothermal grooving experiments
Hydrothermal annealing experiment quartzite fluid pressure the topological structure
2015/1/6
We performed hydrothermal annealing experiments on quartzite samples at temperatures of 392 to 568 °C and fluid pressures of 63 to 399 MPa for up to 120 h, during which hydrothermal grooves developed ...
New constraints on dike injection and fault slip during the 1975–1984 Krafla rift crisis, NE Iceland
New constraints dike injection fault slip Krafla rift crisis, NE Iceland
2014/4/15
Correlation of KH9 spy and SPOT5 satellite images, airphotos, digital elevation model differencing, electronic distance measurement, and leveling survey data is used to constrain the deformation resul...
Constraints from rocks in the Taiwan orogen on crustal stress levels and rheology
rocks in the Taiwan orogen on crustal stress levels rheology
2014/4/15
Taiwan’s Hsüehshan range experienced penetrative coaxial deformation within and near the brittle-plastic transition between6.5 and 3 Ma. This recent and short-lasting deformation in an active, well-s...
Geodetic, teleseismic, and strong motion constraints on slip from recent southern Peru subduction zone earthquakes
Geodetic teleseismic strong motion constraints on slip southern Peru subduction zone earthquakes
2014/4/9
We use seismic and geodetic data both jointly and separately to constrain coseismic slip from the 12 November 1996Mw7.7 and 23 June 2001Mw8.5 southern Peru subduction zone earthquakes, as well as two ...