猛犸象在第四纪晚期灭绝了.

Woolly mammoths died out during the late Quaternary period.

猛犸象在第四纪晚期灭绝了。

Woolly mammoths died out during the late quaternary period .

新生代是由第三纪和第四纪组成的.

The Cenozoic Era is composed of Tertiary Period followed by Quaternary Period.

第四纪的沉积物大部分未变形。

The Quaternary sediments are largely undeformed.

川东南有第四纪冰川吗?。

Is there a Quaternary glaciation in southeastern Sichuan?

南海晚第四纪古水文之探讨I。

Late Quaternary Hydrographic Records from the South China Sea I .

第四纪冰期，使许多物种绝灭。

Pleistocene glaciation caused the extinction of many species.

第四纪冰期，使许多物种绝灭。

That species disappeared in the Ice Age.

因而，第四纪古地磁极倒转可能是第四纪气候冷暖波动变化的主要驱动因素之一。

Therefore, paleomagnetic polarity reverse of Quaternary may be one of the main driving factors.

根据第四纪地质、地球化学、地壳形变和地震活动资料，论述了晚第四纪广州地区主要断裂的活动特征。

Based on the research of Quaternary geology, geochemistry , crustal deformation and seismicity, the active characteristics of the major faults during Late Quaternary in Guangzhou region are discussed.