| 释义 |
BrunhesCOCA⁸¹³⁷⁵BNC²³⁶²¹³⁺¹
基本例句
布吕纳¹⁰⁰
Measurement shows that the normal polarity appears above the depth of 26.90m in Core DC-1 and 61.00m in Core DC-2 belonging to “Brunhes” normal epoch.本文报道了东海DC-1;DC-2孔古地磁研究结果;表明DC-l孔26.;9m岩芯及DC-2孔61
One reversal was 2.6 million years ago marking the start of the Matayama epoch, a period that lasted until the magnetic field flipped again700, 000 years ago to begin the presentBrunhesepoch.其中的一次逆转发生在260万年前，更新世从此开始，这一时期延续到大约70万年前地球磁场再一次逆转，即现在的全新世的开始。 |