Category Archives: volcanoes

Scenic Saturday: Mount Hood

We’ve both had a great week in Oregon, with some science (and, for Chris, some field excursions with Lockwood in the Coast Ranges) at the start of the week and some more recreational explorations at the end. This was the … Continue reading

Categories: photos, volcanoes

Scenic Saturday: White Island before the spiny lava invasion

Last week, Erik drew my attention to this odd spiny lava dome spotted on New Zealand’s White Island. It is rather strikingly weird, like the country that brought us the Lord of the Rings had decided to now bring us … Continue reading

Categories: geohazards, photos, volcanoes

Hotspot volcanism on Hawaii: textbook vs reality

Just like an iceberg, the parts of the Hawaiian Islands that you see above the ocean surface are dwarfed in volume by the stuff below the waves. For a start, any volcano that forms in the middle of the Pacific … Continue reading

Categories: geology, outcrops, photos, tectonics, volcanoes

Geological maps: still interesting even when there’s only one rock type

The USGS, in collaboration with NASA, have just released a geological map of Jupiter’s ultra-volcanically active moon Io, based on images from the Voyager and Galileo probes. It is a thing of beauty. The sheer variety of different geological units … Continue reading

Categories: geology, planets, volcanoes

Scenic Saturday: from desert to verdant grassland in 10 miles (and 1000 m)

Why large climatic contrasts occur over short distances on Hawaii – and why this is scientifically important. Continue reading

Categories: geomorphology, outcrops, photos, volcanoes