Geologists think that this fluidized ejecta crater indicates that a layer of permafrost, or water ice, lies just a few meters under the surface.

地质学家认为，这个具有流体化喷出物的陨石坑表明，在地表下几米深处有一层永久冻土层或水冰。

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Geologists have long known that the Earth's mantle is heterogeneous, but its spatial arrangement remains unresolved—is the mantle essentially layered or irregu larly heterogeneous?

地质学家早就知道地球的地幔是不均匀的，但是它的空间排列仍然没有确定——地幔本质上是分层的还是完全不均匀的？

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Prior to 1960, geologists Bowen and Hess disagreed over whether or not the very high temperatures needed to produce magmas rich in magnesium could have existed on Earth.

在1960年之前，地质学家鲍温和赫斯在地球上是否存在产生富含镁的岩浆所需的高温这一问题上存在分歧。

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The NI 43-101report is the required first step in the multiyear approval process and is carried out only by registered geologists or geophysicists, in this case German firm ERCOSPLAN.

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Two highly effective self-promoters who love to emphasize their background as degreed geologists in order to attract media attention, or thousands of very smart professionals who quietly work their butts off behind the scenes to make sure their respective companies produce maximum returns to their shareholders?

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His approach relies on a statistical technique invented in 1943 by a British statistician, Ronald Fisher, and now widely used by geologists and ecologists to estimate the diversity of populations (of, say, fossils or beetles).

ECONOMIST: Statistics