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作者:... Ulrich Ott , Luigi Folco , Mario Trieloff
来源:[J].Geochimica et Cosmochimica Acta(IF 3.884), 2018, Vol.233, pp.135-158
摘要:Abstract(#br)This paper investigates the mineralogy and noble gas composition of a unique micrometeorite from the Transantarctic Mountains, #45c.29. The magnetite rim and the particle interior with olivine, pyroxene and magnetite relict grains (30–250 µm in size) set in a ve...
作者:Luigi Folco , Mario Trieloff ...
来源:[J].Geochimica et Cosmochimica Acta(IF 3.884), 2018, Vol.242
摘要:Abstract(#br)The bulk of extraterrestrial matter currently accreted by the Earth is in the form of micrometeorites (MMs) and interplanetary dust particles (IDPs), thus they may have collectively made a substantial contribution to the volatile inventory of the Earth and the o...
作者:Luigi Folco , Mauro Gemmi ...
来源:[J].Geochimica et Cosmochimica Acta(IF 3.884), 2019, Vol.264, pp.105-117
摘要:Abstract(#br)Coesite, a high-pressure silica polymorph, is a diagnostic indicator of impact cratering in quartz-bearing target rocks. The formation mechanism of coesite during hypervelocity impacts has been debated since its discovery in impact rocks in the 1960s. Electron d...
作者:... Matthew J. Genge , Luigi Folco , Sara S. Russell
来源:[J].Geochimica et Cosmochimica Acta(IF 3.884), 2017, Vol.206, pp.112-136
摘要:Abstract(#br)We analysed 44 fine-grained and scoriaceous micrometeorites. A bulk mid-IR spectrum (8–13 μm) for each grain was collected and the entire micrometeorite population classified into 5 spectral groups, based on the positions of their absorption bands. Corresponding...
作者:... Massimo D’Orazio , Carole Cordier , Luigi Folco
来源:[J].Geochimica et Cosmochimica Acta(IF 3.884), 2016, Vol.180, pp.33-50
摘要:Abstract(#br)In small meteorite impacts, the projectile may survive through fragmentation; in addition, it may melt, and chemically and physically interact with both shocked and melted target rocks. However, the mixing/mingling between projectile and target melts is a proces...
作者:... Matthew J. Genge , Luigi Folco , Ralph P. Harvey
来源:[J].Geochimica et Cosmochimica Acta(IF 3.884), 2016, Vol.179, pp.1-31
摘要:Abstract(#br)Micrometeorites are cosmic dust particles recovered from the Earth’s surface that dominate the influx of extraterrestrial material accreting to our planet. This paper provides the first in-depth study of the weathering of micrometeorites within the Antarctic env...
作者:Luigi Folco , Philip A. Bland ...
来源:[J].Geochimica et Cosmochimica Acta(IF 3.884), 2003, Vol.68 (10), pp.2379-2397
摘要:Abstract(#br)DaG 896 is an olivine-rich microporphyritic rock of komatiitic composition. Both the olivine composition (Fa 17.5±2.1 , [Mn/Mg] = 0.0061) and the bulk oxygen isotopic composition (δ 17 O = +2.55, δ 18 O = +3.50) indicate that DaG 896 is a sample of the H-chondri...
作者:Luigi Folco , Pierre Rochette
来源:[J].Geochimica et Cosmochimica Acta(IF 3.884), 2012, Vol.77, pp.515-529
摘要:Abstract(#br)Eleven large (∼400–700 μm in diameter) differentiated glass cosmic spherules were identified from the Transantarctic Mountain micrometeorite collection on the basis of their high Fe/Mg ratios (from 0.6 to 1.6) and their homogeneous Fe/Mn ratios (31 ± 4). Th...
作者:Luigi Folco , Marinella Ada Laurenzi ...
来源:[J].Quaternary Science Reviews(IF 4.076), 2007, Vol.27 (5), pp.602-620
摘要:Abstract(#br)Englacial tephra provide chronostratigraphic markers in the Antarctic ice sheets. Structural, mineralogical, geochemical and geochronological data on selected samples allowed the reconstruction of a chronostratigraphic framework for the Frontier Mountain blue-ic...
作者:Carole Cordier , Luigi Folco
来源:[J].Geochimica et Cosmochimica Acta(IF 3.884), 2014, Vol.146, pp.18-26
摘要:Abstract(#br)A long-standing controversy in the micrometeorite community regards the relative contribution of primitive asteroids or comets and of evolved asteroids to the interplanetary dust cloud. We compiled and studied a large set of oxygen isotopic data from the literat...

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