GeoLog

Regular Features

Geosciences Column: Stitching the seafloor together

You’re standing on a mountain peak, with a fabulous field site before you. Wanting to capture the moment, you take out your iPhone, snap a dozen pictures and your mobile stitches them together beautifully – a nice record to show your colleagues back in the office. Unfortunately, not all field sites are so easy to capture – especially when you need to do a little science with the images. Seafloor p ...[Read More]

Imaggeo on Mondays: Capturing the aurora

The northern lights, or aurora borealis, are created as charged particles interact with the Earth’s atmosphere.  These electrons are part of the solar wind and as they pass through the Earth’s magnetic shield (the magnetosphere); the charged particles collide with those in our atmosphere, emitting light. In the southern hemisphere this phenomenon is known as the aurora australis, but both are caus ...[Read More]

Imaggeo on Mondays: Lime Pancakes

These are the Pancake Rocks of Punakaiki, on the west coast of New Zealand. They are made of limestone that was deposited as calcifying organisms fell to their fate on the sea floor about 30 million years ago. Since then, the limestone has been uplifted, exposed, and eroded by the wind and the sea. Each of the limestone layers are separated by a thin sheet of mudstone in an arrangement known as st ...[Read More]