Автор |
Langway, C. C. |
Автор |
Osada, K. |
Автор |
Clausen, H. B. |
Автор |
Hammer, C. U. |
Автор |
Shoji, H. |
Дата выпуска |
1995 |
dc.description |
Measurements of key chemical and physical parameters made along continuous and selected long sections of polar ice cores provide reliable past snow accumulation rates and other environmental records. The prime accumulation indicators include variations found in the stable isotopes, ionic constituents, and acidity concentration levels; and physical changes in the strata and structure. Cross correlations of the time series curves resulting from multiparameter analyses of ice cores from Antarctica (NBY89, SP78, BS68) and Greenland (CR74, D3 81, D3 18C) have been made. The results permit construction of a bipolar chemical stratigraphy chronology of volcanic events that is coherent with the δ <sup>18</sup>O and Electrical Conductivity Method data sets and consistent back‐in‐time with historically recorded volcanic activity. A bihemispheric comparison of high non‐sea‐salt SO<sub>4</sub><sup>2−</sup> peaks shows strong correlation at 1885, 1836, 1816, 1810, 1459, 1346, 1287, 1278, 1259, 1228, and 1168 A.D. at time of snow deposit. The prominent 1259 A.D. volcanic signal appears to be a significant bipolar ice core index horizon. |
Формат |
application.pdf |
Копирайт |
Copyright 1995 by the American Geophysical Union. |
Тема |
ATMOSPHERIC COMPOSITION AND STRUCTURE |
Тема |
Volcanic effects |
Тема |
Geochemical cycles |
Тема |
CRYOSPHERE |
Тема |
Snow |
Тема |
Glaciology |
Тема |
GEOCHEMISTRY |
Тема |
Geochemical cycles |
Тема |
HYDROLOGY |
Тема |
Glaciology |
Тема |
Snow and ice |
Тема |
ATMOSPHERIC PROCESSES |
Тема |
Meteorology and Atmospheric Dynamics: Paleoclimatology |
Тема |
NATURAL HAZARDS |
Тема |
Atmospheric |
Тема |
VOLCANOLOGY |
Тема |
Atmospheric effects |
Название |
A 10‐century comparison of prominent bipolar volcanic events in ice cores |
Тип |
article |
DOI |
10.1029/95JD01175 |
Electronic ISSN |
2156-2202 |
Print ISSN |
0148-0227 |
Журнал |
Journal of Geophysical Research: Atmospheres |
Том |
100 |
Первая страница |
16241 |
Последняя страница |
16247 |
Выпуск |
D8 |
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