Holocene electrical and chemical measurements from the EPICA-Dome C ice core

被引：47

作者：

Udisti, R ^{[1
]}

Becagli, S

Castellano, E

Mulvaney, R

Schwander, J

Torcini, S

Wolff, E

机构：

[1] Univ Calabria, Dept Chem, I-87030 Arcavacata, Cosenza, Italy

[2] Univ Florence, Dept Publ Hlth & Environm Analyt Chem, I-50121 Florence, Italy

[3] British Antarctic Survey, NERC, Cambridge CB3 0ET, England

[4] Univ Bern, Inst Phys, CH-3012 Bern, Switzerland

[5] CRE Casaccia, AMB, Ente Nazl Energia & Ambiente, I-00100 Rome, Italy

来源：

ANNALS OF GLACIOLOGY, VOL 30, 2000 | 2000年 / 30卷

关键词：

D O I：

10.3189/172756400781820750

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

The comparison between electric (electric-conductivity measurement (ECM) and dielectric profiling (DEP)) and chemical (sulphate and chloride) depth profiles along the first 400 m of the EPICA-Dome C ice core revealed a very good fit, especially for peaks related to volcanic emissions. From the comparison between these profiles, a dominant contribution of sulphuric acid to the ionic balance of Antarctic ice for the Holocene was confirmed. A progressive increase with depth was observed for chloride concentrations, showing a change of relative contribution between sulphate and chloride. A higher increase of chloride was evident between 270 and 360 m depth, probably due to a change in source or transport processes or to an increase of the annual snow-accumulation rate. The DEP, ECM and sulphate ice signatures of Tambora (AD 1816) and Fl Chichon (?) (AD 1259) eruptions are described in detail. A characteristic peak series, due to HCl deposition, was identified at 103-109 m depth from the ECM, DEP and chloride profiles.

引用

页码：20 / 26

页数：7

共 23 条

[1]

[Anonymous], NATO ASI SER 1

[2] A comparison of the volcanic records over the past 4000 years from the Greenland Ice Core Project and Dye 3 Greenland Ice Cores [J].

Clausen, HB ;

Hammer, CU ;

Hvidberg, CS ;

DahlJensen, D ;

Steffensen, JP ;

Kipfstuhl, J ;

Legrand, M .

JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS, 1997, 102 (C12) :26707-26723

[3] 1000 YEARS OF EXPLOSIVE VOLCANISM RECORDED AT THE SOUTH-POLE [J].

DELMAS, RJ ;

KIRCHNER, S ;

PALAIS, JM ;

PETIT, JR .

TELLUS SERIES B-CHEMICAL AND PHYSICAL METEOROLOGY, 1992, 44 (04) :335-350

[4] CONTINUOUS MEASUREMENTS OF HYDROGEN-PEROXIDE, FORMALDEHYDE, CALCIUM AND AMMONIUM CONCENTRATIONS ALONG THE NEW GRIP ICE CORE FROM SUMMIT, CENTRAL GREENLAND [J].

FUHRER, K ;

NEFTEL, A ;

ANKLIN, M ;

MAGGI, V .

ATMOSPHERIC ENVIRONMENT PART A-GENERAL TOPICS, 1993, 27 (12) :1873-1880

[5] GREENLAND ICE-SHEET EVIDENCE OF POST-GLACIAL VOLCANISM AND ITS CLIMATIC IMPACT [J].

HAMMER, CU ;

CLAUSEN, HB ;

DANSGAARD, W .

NATURE, 1980, 288 (5788) :230-235

[6] IMPURITY SOURCES OF F-, CL-, NO3- AND SO42- IN GREENLAND AND ANTARCTIC PRECIPITATION [J].

HERRON, MM .

JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS, 1982, 87 (NC4) :3052-3060

[7] CHEMISTRY OF ANTARCTIC SNOW AND ICE [J].

LEGRAND, M .

JOURNAL DE PHYSIQUE, 1987, 48 (C-1) :77-86

[8] A 220-YEAR CONTINUOUS RECORD OF VOLCANIC H2SO4 IN THE ANTARCTIC ICE-SHEET [J].

LEGRAND, M ;

DELMAS, RJ .

NATURE, 1987, 327 (6124) :671-676

[9] FORMATE, ACETATE AND METHANESULFONATE MEASUREMENTS IN ANTARCTIC ICE - SOME GEOCHEMICAL IMPLICATIONS [J].

LEGRAND, M ;

SAIGNE, C .

ATMOSPHERIC ENVIRONMENT, 1988, 22 (05) :1011-1017

[10] DC CONDUCTIVITY OF ANTARCTIC ICE IN RELATION TO ITS CHEMISTRY [J].

LEGRAND, M ;

PETIT, JR ;

KOROTKEVICH, YS .

JOURNAL DE PHYSIQUE, 1987, 48 (C-1) :605-611

← 1 2 3 →