GeoLog

Imaggeo On Monday: Ninepin Group: the spectacular hexagonal columns

Angel Ling July 18, 2022

Ninepin Group: the spectacular hexagonal columns. Credit: Angel Ling (distributed via imaggeo.egu.eu)

The picture shows the world’s rarest hexagonal rhyolitic volcanic rock columns on the northern island of the Ninepin Group in the easternmost waters of Hong Kong. These rocks columns are believed to form about 140 million years ago after a major volcanic eruption near Sai Kung. When the volcanic ash and lava slowly cooled down, joints and cracks started to develop on the surface and then extended ...[Read More]

Spring, Summer, Winter…Haze?

Hazel Gibson July 15, 2022

Image credit: Firdaus Latif

Around the world, societies have many different ways to define the seasons, but for most people a season is identified by a set of culturally specified events, such as the arrival of migratory birds, certain anticipated weather patterns, or a range of expected temperatures. Over recent years many studies have examined the various ways that anthropogenic climate change has affected the way that our ...[Read More]

Imaggeo On Monday: Glimpse of the Ranns of Kachchh, India

Fulmati Ram July 11, 2022

Glimpse of the Ranns of Kachchh, India. Credit: Fulmati Ram (distributed via imaggeo.egu.eu)

The Rann of Kachchh is a saline marshland located in the western part of India. This climatically arid, salt-covered mudflat was once home to one of the largest settlements of the Indus Valley Civilization in India. The UNESCO world heritage archaeological site of Dholavira is now located in the heart of the salt desert. Photo by Fulmati Ram, as described on imaggeo.egu.eu. Imaggeo is the E ...[Read More]

An ocean emergency is upon us. Can the world reverse ocean decline?

Gillian D'Souza July 8, 2022

Liu Zhenmin addresses the Sustainable Blue Economy Investment Forum. Photo credit: UN DESA / Helen Daun Rosengren

“The ocean is not too big to fail, nor is it too big to fix, but it is too important to ignore.” Last week, Dr Jane Lubchenco voiced a thought we’ve all had at some point: that the ocean is so vast and bountiful, it is almost inconceivable that people could impact it. And yet… Speaking to more than 20 Heads of State and Government, and an audience of thousands of policymakers, ocean scientists, bu ...[Read More]