EGU Blogs

Highlights

GD
Geodynamics

Baking geological cakes!

Baking geological cakes!

Who doesn’t love baking? Seriously, baked goods are the best: with or without gluten, with or without chocolate. But you know what makes every bake out there even better? A geological theme. You heard it here first! This week, Ruth Amey, postdoctoral researcher and programme manager of the Earth Observation Center for Doctoral Training at the University of Leeds, United Kingdom, discusses th ...[Read More]

GeoLog

Imaggeo On Monday: Burnt roots

Imaggeo On Monday: Burnt roots

Fires are a common and often natural worldwide phenomena, that are often integral to the lifecycle of certain land-based ecosystems. Despite this, frequent or unusually intense fires can have significant effects on plant productivity, plant community composition and root properties. Although many trees have evolved to grow in fire prone areas, they usually have certain adaptations to help them sur ...[Read More]

NH
Natural Hazards

To be or not to be a ‘natural’ disaster: that is the question

To be or not to be a ‘natural’ disaster: that is the question

The story of science is replete with theories that only become accepted by the scientific community after long and protracted uphill battles, said Howard Wolinsky in his commentary in Science and Society in 2008. Sometimes they are rejected, ridiculed, or they take time to be validated, digested, and likely accepted. However, in my opinion, the scientific discussion over new hypotheses is at the h ...[Read More]

SM
Seismology

Earthquake of the month: Simeonof – Alaska M 7.8

Earthquake of the month: Simeonof – Alaska M 7.8

On July 22nd, Alaska was the scene of last month’s largest earthquake, a Mw 7.8 earthquake that hit the Aleutian Islands, offshore the Alaska Peninsula. The hypocenter location, tectonic setting and focal mechanism suggest a megathrust earthquake. The hypocenter of the so called Simeonof earthquake is located at the western edge of the historical 1938 earthquake (M8.3) slip zone, near the Shumagin ...[Read More]

GeoLog

Imaggeo On Monday: A marvellous sequoia in spring time

Imaggeo On Monday: A marvellous sequoia in spring time

Although more commonly associated with the west coast of the United States, if you visit Cabezón de la Sal in Spain you may come across a stand of giant redwood trees or Sequoia. Around 800 trees were brought to Spain in the 1940s, so are still very young, but even at their young age they are still around 40 meters high! Sequoia groves, as well as being awe-inspiring to look at, provide a uniquely ...[Read More]

GD
Geodynamics

The Sassy Scientist – The Burning Question

The Sassy Scientist – The Burning Question

In the climb on the academic pyramid, Antonia wonders: How do you tell someone “you have not done enough to be included in the co-author list”? Dear Antonia, *arranges Yoda robe*: Big questions you have! Right place you came! I am sure you are not the first or the only scientist with that question. Since I feel generous today, I will leave here a template e-mail you can all copy and pa ...[Read More]

TS
Tectonics and Structural Geology

Features From the Field: Pencil Cleavage

Features From the Field: Pencil Cleavage

This edition of ‘Features from the field’ is brought to you by Sandra McLaren, a senior lecturer at the University of Melbourne. She will be talking about type of rock formation called “Pencil Cleavage” so called because it looks like pencils. Sandra even has a small collection of pencil/crayon shale which is the cover image of this post. I have seen quite a range of differ ...[Read More]

Geochemistry, Mineralogy, Petrology & Volcanology

Ask us (almost) anything: Were Chixculub and Deccan related?

Ask us (almost) anything: Were Chixculub and Deccan related?

Doc Rock from twitter asks Has anyone investigated the hypothesis that the Deccan Traps basalt flows came after, and were the result of, the Chixculub impact event, based on the DT basalts being on the exact opposite side of Earth at the time of the event? For context, the Chixculub crater is buried under the Yucatan peninsula in Mexico, and resulted from a meteorite impact that is widely believed ...[Read More]

CL
Climate: Past, Present & Future

Breathing life into a d(r)ying lake in northwest Iran

Breathing life into a d(r)ying lake in northwest Iran

Lake Urmia, in Northwest Iran, was once the most extensive and permanent hypersaline lake (salinity >> of ocean) in the world. Since 1995, the lake water level has dropped about 8 m, shrinking to less than 30% of its original surface area and losing more than 90% of its water volume over two decades [1]. Unsustainable water management in response to increasing demand together with climatic e ...[Read More]