末次冰期末冰酸度的太阳周期变化：气候意义上的Interstellar Dust侵入的可能标志
Solar Cycle Variations in Ice Acidity at the End of the Last Ice Age: Possible Marker of a Climatically Significant Interstellar Dust Incursion
摘要：
Hammer等人[1997年]报告说，在南极洲冰芯的伯德站，存在有规律间隔的酸性峰值（H+、F-、Cl-）。这一事件持续了大约一个世纪，发生在冰消期变暖的开始。火山作用似乎是一个不太可能的原因，因为这一事件的总酸沉积量比已知最大的火山爆发大18倍，而且火山爆发并没有以这种规律性重复发生。我们发现，这些峰值的重现周期平均为11.5 +/- 2.4年，这近似于太阳活动周期，并表明这一特征可能具有外星起源。我们认为，这种材料可能标志着一个时期的增强星际尘埃和气体流入调制的太阳周期。这种物质的存在可能使太阳更加活跃，并导致了结束最后一个冰河时代的变暖。
英文摘要：
Hammer et al. [1997] report the presence of regularly spaced acidity peaks (H+, F-, Cl-) in the Byrd Station, Antarctica ice core. The event has a duration of about one century and falls at the beginning of the deglacial warming. Volcanism appears to be an unlikely cause since the total acid deposition of this event was about 18 fold greater than the largest known volcanic eruption, and since volcanic eruptions are not known to recur with such regularity. We show that the recurrence period of these peaks averages to 11.5 +/- 2.4 years, which approximates the solar cycle period, and suggest that this feature may have an extraterrestrial origin. We propose that this material may mark a period of enhanced interstellar dust and gas influx modulated by the solar cycle. The presence of this material could have made the Sun more active and have been responsible for initiating the warming that ended the last ice age.
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