In many dielectrics, swift heavy ions of MeV-GeV energy produce tracks of a few nm in diameter. The track morphology depends on energy loss (dE/dx), particularly the formation of a continuous damage trail requires a critical (dE/dx)c. Below this threshold, chemical etching of discontinuous tracks exhibits inhomogeneous pore sizes and the track etching efficiency drops below unity. In the recent...

New mineralogical and geochemical data from a suite of glass ± from the mantle (Deines & Gold, 1973; Nelson et al., 1988). However, controversy remains as to whether such apatite ± amphibole ± phlogopite ± carbonate-bearing spinel magmas represent (1) direct partial melts of carbonatewehrlite, lherzolite and harzburgite xenoliths from the Newer Volbearing mantle peridotite (i.e. primary carbona...

Although often speculated, the link between Middle Triassic shoshonitic magmatism at NE margin of Adria plate and subduction-related metasomatism Southern Alps Sub-Continental Lithospheric Mantle (SCLM) has never been constrained. In this paper, a detailed geochemical petrological characterization lavas, dykes ultramafic cumulates belonging to magmatic event that shaped Dolomites (Southern Alps...

Phlogopite flakes strewn on the soil of Caldara di Manziana (Italy) display multiple minute perforations. The site is a caldera linked to recent volcanism (90 ka 0.8 Ma) with present emanations CO2 (~150 t d−1) and H2S (~2.55 d−1). Stereomicroscopy SEM–EDX observation phlogopite crystals shows holes depressions <200 µm 2 mm across. They are circular, pseudo-hexagonal, or irregular. Within de...