LATEST PLEISTOCENE AND HOLOCENE GEOMAGNETIC PALEOINTENSITY ON HAWAII

被引：34
|
作者：
MANKINEN, EA
CHAMPION, DE
机构：
[1] U.S. Geological Survey, Mail Stop 937, Menlo Park, CA 94025
来源：
SCIENCE | 1993年 / 262卷 / 5132期
关键词：
D O I：
10.1126/science.262.5132.412
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：
Geomagnetic paleointensity determinations from radiocarbon-dated lava flows on the island of Hawaii provide an estimate of broad trends in paleointensity for Holocene time and offer a glimpse of intensity variations near the end of the last glacial period. When the data from Hawaii are compared with others worldwide, the intensity of the geomagnetic field seems to have been reduced from the Holocene average by about 35 percent between 45,000 and 10,000 years ago. A long-term reduction of this magnitude is compatible with reported increases in the production rate of cosmogenic nuclides during the same interval.
引用
收藏
页码：412 / 416
页数：5
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