The ridges running across this Kazakhstan landscape are a result of displacement on an active fault. Credit: Tim Middleton. (c) Geology for Global Development
Photos
Friday Photo (59): Active Geology – Icelandic Geyser
These two images show an Icelandic geyser when calm (top) and then when ‘erupting’ (Bottom). Historical reports associate increased activity in the geysers with earthquakes. (c) Geology for Global Development
Friday Photo (58): Active Geology – Striations on a Fault Surface, Greece
An active fault surface in Greece – one of the most seismically active places on Earth. The striations on the surface can be used to measure the direction of movement on the fault. The exposed surface can be dated at various heights (using dating systems such as Beryllium-10) to infer the rate of slip. …[Read More]
Friday Photo (57): Active Geology – Sinking Buildings from Ancient Greece
These foundations were once part of a building in ancient Greece. Over thousands of years, active faults have lowered the land and the foundations have sunk below sea level. Geology can have a big impact on relatively short timescales. (c) Geology for Global Development
Friday Photo (56): Photos from Industry – Copper Deposits in Fault Zones
The deposits on the surface of this sandstone are a distinctive shade of green – indicative of copper. Copper is mobilised and concentrated along fault zones. If you have any photos from time spent working in industry, that do not breach company copyright regulations, then please get in touch and we will publish them on our blog! …[Read More]
Friday Photo (55): Photos from Industry – Man Operating Machinery at a Mine in China
Man Operating Machinery at a Mine in Anhui Province, China There are many large mining operations covering Anhui Province, China. They tend to have limited safety regulations. The mines can ruin the landscape, cause pollution and can be dangerous places for people to work. However, this primary industry is fuelling China’s rapid growth and development. Our …[Read More]
Friday Photo (54) – Debris Flow Channel, Gansu Province, China
Southern Gansu Province, China: Poorly Maintained Debris Flow Channel This channel is designed to transport debris flow material away from the road, thus preventing a major road blockage. The poor design and maintenance of the channel, however, is resulting in material coming down the channel and then being pushed back on to the road. (c) …[Read More]
Friday Photo (53) – Earthquake Emergency Shelter – Lanzhou, China
Lanzhou, China – Earthquake Emergency Shelter Interesting questions about preparedness, local education and awareness were raised on a recent visit to Lanzhou, China, after I was told on a coach from the airport that Lanzhou was not affected by earthquakes. During my visit to the University there, I came across this sign which offered a stark contradiction. Lanzhou regularly …[Read More]
Friday Photo (52) – Taklamakan Desert
We’ve now had a whole year of ‘Friday Photos’ on our old blog and now this new EGU hosted blog. As a special treat today we have not one, but three images from the Taklamakan Desert and some of the highest sand dunes in China. Taklamakan Desert, China: Geotourism close to the oasis town of Dunhuang …[Read More]
Friday Photo (51) – Loess Collapse/Subsidence
Heifangtai, Gansu Province, China: Collapse in Loess Deposits Ground collapse/subsidence in China, most likely caused by movement of water through the loess deposits from the high relief in the right of this picture, to the low relief in the left of the picture. The scale of the collapse can be seen in relation to the man at the …[Read More]