Detail of a photo: Large angular boulder beside a shallow pebbly stream in a grassy mountain valley, below steep forested slopes and rocky peaks under a dramatic blue sky, in heavily processed colours.
EGU Blogs

Division blogs

TS
Tectonics and Structural Geology

TS Must-Read – Fossen and Tikoff (1993): The deformation matrix for simultaneous simple shearing, pure shearing and volume change, and its application to transpression-transtension tectonics

January 31, 2022
TS Must-Read – Fossen and Tikoff (1993): The deformation matrix for simultaneous simple shearing, pure shearing and volume change, and its application to transpression-transtension tectonics

With their milestone article in Journal of Structural Geology (Fossen and Tikoff, 1993)⁠ and its companion article in Tectonophysics (Tikoff and Fossen, 1993)⁠, the authors marked a step forward for the quantification of strain in the deep crust. These articles popularized a new approach, the deformation matrix. An easy solution to quantify strain in finite …[Read More]

Geochemistry, Mineralogy, Petrology & Volcanology

Minerals and Art: a centuries-old connection

January 28, 2022
Minerals and Art: a centuries-old connection

Since ancient times, colours have been fundamental for artistic expression: pigments have always been created from fruits, leaves-flowers, and minerals. During the centuries, new material discoveries and techniques increased the shades we can still see and use nowadays. Once upon a Prehistoric time… El Castillo Cave, in Spain, is one of the earliest known cave …[Read More]

CR
Cryospheric Sciences

Camp Century re-visited: sediment from the bottom of a Cold War ice core reveals Greenland’s warm past

January 28, 2022
Camp Century re-visited: sediment from the bottom of a Cold War ice core reveals Greenland’s warm past

A Cold War nuclear-powered military base inside the Greenland Ice Sheet sounds like science fiction, but the science that came out of this U.S. army installation was anything but fiction. In last week’s EGU CR blog post, Paul Bierman and Amanda Schmidt discussed the advances made by the U.S. military in operating across the Greenland …[Read More]

NH
Natural Hazards

Geoscience communication series: navigating the light and dark sides of social media

and January 24, 2022
Geoscience communication series: navigating the light and dark sides of social media

We are thrilled to present the last episode of the EGU WEBINARS: Digitalk: online (geo)science communication series. In this episode, we will explore the light and the dark sides of using social media for science communication by a special guest, Roberto Guardo.  Roberto wished to engage in science communication just after completing his PhD. “I …[Read More]

TS
Tectonics and Structural Geology

TS Must-read – Buck (1991): Modes of continental lithospheric extension

January 24, 2022
TS Must-read – Buck (1991): Modes of continental lithospheric extension

Buck (1991) aims at solving the  intense ‘70s and ‘80s tectonic debate concerning the way extension is accommodated in continental regions (see our previous blog posts here and here). His article explores the physical conditions that can lead to the three end-member modes of lithospheric extension in continents: core complex mode, wide rift mode and …[Read More]

CR
Cryospheric Sciences

Living IN the Greenland ice sheet: the story of Sites I and II, Camp Century’s older, smaller siblings

and January 21, 2022
Living IN the Greenland ice sheet: the story of Sites I and II, Camp Century’s older, smaller siblings

Greenland, cold as it is, was appropriately front and center in the Cold War. Strategically placed between Europe and North America, the United States sought to maintain and enhance its position on the island so that American missiles and bombers were in striking range of many Soviet targets. Soviet bombers and missiles coming toward North …[Read More]