In Gobustan, Azerbaïdjan, gases such as methane or carbon dioxide are emitted in the underground. They lower the density of the overlying sediments which are pushed upwards by buoyancy. Fingering instabilities occur, where more mobile and lighter sediments form vents and mud volcanoes with upwards moving material. Many small scale cones are deposited when the …[Read More]
Scientists have combed through the mysteries offered by this ridge for a long time. This is an aerial image of the linear north-south ridge in South-Eastern Utah. First mapped by modern geoscientists in the late 19th century, the ridge is home to numerous Puebloan cliff dwellings and petroglyphs. It is a National Natural landmark and …[Read More]
This picture was taken from the N.B. Palmer ice breaker during the PIPERS expedition in the austral winter of 2017. Two researchers and a marine technician were drilling cores in the sea ice of the Ross Sea. The ice was too thin and started to crack (see the fault in the background), so the team …[Read More]
The drying out of the soil leads to the hazard of flash floods in the wadis of the Dead Sea Valley during sparse but strong rain events. During longer precipitation-free periods and extreme low relative humidity, driven by mesoscale wind, the soil crust ultimately tends to break into piece. Photo by Stefan Schmitt, description from …[Read More]
Plume rising from Mount Erebus on a rare calm day. This 3794 m high volcano is the most active in Antarctica and close to the American base at McMurdo. Photo by Martyn Unsworth, description from imaggeo.egu.eu. Imaggeo is the EGU’s online open access geosciences image repository. All geoscientists (and others) can submit their photographs and videos to …[Read More]
Tengger Caldera is a volcanic complex consisting of five overlapping stratovolcanoes (Mounts Batok, Bromo, Kursi, Watangan and Widodaren) forming out of the ancient volcano Tengger, which was formed about 820,000 years ago, situated in East Java, Indonesia. In this panoramic view are visible Mount Batok (in the front; an inactive volcano with lush green vegetation …[Read More]
Spanish “dehesas” and Portuguese “montados” are grassland areas with sparse trees (usually oaks) that allow a diversity of agrosylvopastoral uses. Photo by Antonio Jordán, description as shown on imaggeo.egu.eu. Imaggeo is the EGU’s online open access geosciences image repository. All geoscientists (and others) can submit their photographs and videos to this repository and, since it is open …[Read More]
The Algarve barrier island system in southern Portugal: the land is sinking due to deltaic sediment compaction and urbanization, and the sea water level is rising due to global warming. Photo by Makan A. Karegar, description as shown on imaggeo.egu.eu. Imaggeo is the EGU’s online open access geosciences image repository. All geoscientists (and others) can submit their …[Read More]
TUBITAK National Observatory (TUG) is located at an altitude of 2500 m, on the top of Bakirlitepe mountain in Saklikent region of the city of Antalya which is located on the Mediterranian coast of Turkey. Besides research and training activities, TUG feels the responsibility of creating awareness in astronomy and space sciences. In this context, …[Read More]
The large suspended globe in the foreground and a suspended pathway in the background. The composition gives an impression that the museum visitors are entering into the Earth, perhaps even boarding an Earthly spaceship. Photo taken at Miraikan – the National Museum of Emerging Science and Innovation in Tokyo, Japan. At the moment the photo …[Read More]
