The concentrations of several elements ( Na, Mg, Al, Si, P, S, Cl, K, Ca Ti, Cr, Mg, Fe, Co, Ni, Cu, Zn) were measured in the insoluble fraction of ice samples from an Anctartic ice core of about 700 m depth. The insoluble particles were collected by filtration from melted samples. The element concentrations were determined by PIXE (Particle Induced X-ray Emission) with measurement errors generally lower than 10%. The concentration trends were related to temperature profile, obtained from the behavior of D (that dated about 30000 years over the core), to compare the climate variability with the precipitation composition.
DISTRIBUTION OF ELEMENTS IN ICE CORE SAMPLES OF THE LAST 30000 YEARS / Ghermandi, Grazia; Cecchi, Rodolfo; M., Capotosto. - In: GEOPHYSICAL RESEARCH ABSTRACTS. - ISSN 1029-7006. - ELETTRONICO. - 2, n.74:(2000), pp. 205-205. (Intervento presentato al convegno EGS 25th General Assembly tenutosi a Nice, France nel 25-29 April 2000).
DISTRIBUTION OF ELEMENTS IN ICE CORE SAMPLES OF THE LAST 30000 YEARS
GHERMANDI, Grazia;CECCHI, Rodolfo;
2000
Abstract
The concentrations of several elements ( Na, Mg, Al, Si, P, S, Cl, K, Ca Ti, Cr, Mg, Fe, Co, Ni, Cu, Zn) were measured in the insoluble fraction of ice samples from an Anctartic ice core of about 700 m depth. The insoluble particles were collected by filtration from melted samples. The element concentrations were determined by PIXE (Particle Induced X-ray Emission) with measurement errors generally lower than 10%. The concentration trends were related to temperature profile, obtained from the behavior of D (that dated about 30000 years over the core), to compare the climate variability with the precipitation composition.
Pubblicazioni consigliate
I metadati presenti in IRIS UNIMORE sono rilasciati con licenza Creative Commons CC0 1.0 Universal, mentre i file delle pubblicazioni sono rilasciati con licenza Attribuzione 4.0 Internazionale (CC BY 4.0), salvo diversa indicazione.
In caso di violazione di copyright, contattare Supporto Iris
