Author Archives: Metageologist

Sediment and sea: from the heights to the depths

This study in blues and greys and browns, this combination of fuzziness and sharp edges, where is it? It’s where land and ocean meet and mingle. A place where mud and silt and sand pause half way along an incredible … Continue reading

Categories: Great Geology in Google earth, Himalaya, mountains, sediments

Scars, acne and others: circles on the ground

Looking is never just looking. When we gaze at something, we are not passive recipients of an image, instead our brain is constantly looking for patterns. If you are drifting over the earth, whether as an astronaut or via Google Maps then … Continue reading

Categories: Great Geology in Google earth, impacts

Into the Third Dimension: using Google Maps to know what’s underground

Much of the earth’s surface is covered by sedimentary rocks. These form as sediment settles on the surface. As the types of sediment change – sand to mud to sand again – different layers are formed, some hard some soft. The … Continue reading

Categories: Great Geology in Google earth, tectonics

Looking from the sky at diamonds

When a geologist looks at Google Maps images, we usually filter out any human activity. But in the case of mines, that would be a mistake – the holes humans dig can tell us about the geology. What’s this? A big … Continue reading

Categories: diamonds, Great Geology in Google earth