geologically speaking

Generally speaking, the interiors of plates are geologically uneventful.(一般来说，板块的内部在地质上是平静的。)

Geologically speaking, the park's landscape was formed by two processes: mountain-building and glaciation.(地质上说，公园的景观形成了两个过程：山区建设和冰川。)

Apollo astronauts used seismometers during their visits to the Moon and discovered that the gray orb isn't a totally dead place, geologically speaking.(阿波罗航天飞船的宇航员们登月时使用地震检波器发现：这个灰色的星球，从地质学角度上讲，并不完全是一个死气沉沉的地方。)

Past reversals have taken place over a short period of time geologically speaking, 10,000 years or so.(过去的倒转在地质学上的说法是发生在一个短的时期，大约1万年。)