A 3000-year climatic record from biogenic silica oxygen isotopes in an equatorial high-altitude lake

被引：51

作者：

Rietti-Shati, M

Shemesh, A ^{[1
]}

Karlen, W

机构：

[1] Weizmann Inst Sci, Dept Environm Sci & Energy Res, IL-76100 Rehovot, Israel

[2] Univ Stockholm, Dept Phys Geog, S-10691 Stockholm, Sweden

来源：

SCIENCE | 1998年 / 281卷 / 5379期

关键词：

D O I：

10.1126/science.281.5379.980

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

A record of oxygen isotopes in biogenic opal, 4200 to 1200 calibrated years before the present, from a high-altitude proglacial Lake on Mount Kenya, East Africa, exhibits short-term fluctuations on a time scale of centuries as well as Long-term variations. The short-term fluctuations are attributed to changes in the glacier meltwater input, and the Long-term variations are related to changes in Lake temperature. The record indicates that the climate was warm in Equatorial East Africa from 2300 to 1500 years before the present.

引用

页码：980 / 982

页数：3

共 17 条

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