University of Bern, Switzerland - The last ice age widened the Aare and Gürbe valleys

Title:

The last ice age widened the Aare and Gürbe valleys 

 

Published:

University of Bern, 2 February 2022

https://www.unibe.ch/news/media_news/media_relations_e/media_releases/2022/media_releases_2022/the_last_ice_age_widened_the_aare_and_guerbe_valleys/index_eng.html

 

From the news article:

A team led by the University of Bern was able to proof that the glaciers of the penultimate ice age ('Riss' glaciation) mainly eroded the bedrock between Thun and Bern, but that during the last glaciation (' Würm'- glaciation) glacial carving resulted in a widening and not in a further deepening of the valleys. The researchers reconstructed the geometry of the bedrock using gravity measurements to reach their conclusions.

 

ALSO SEE

 

Bandou, D., Schlunegger, F., Kissling, E. et al. Three-dimensional gravity modelling of a Quaternary overdeepening fill in the Bern area of Switzerland discloses two stages of glacial carving. Scientific Reports, 12, 1441 (2022). 

https://doi.org/10.1038/s41598-022-04830-x 

Liquid Water Confirmed Beneath Martian South Polar Cap [SciTechDaily, February 2022]

Title:

Liquid Water Confirmed Beneath Martian South Polar Cap

 

By:

Southwest Research Institute

 

Published:

SciTechDaily, 4 February 2022

https://scitechdaily.com/liquid-water-confirmed-beneath-martian-south-polar-cap/

 

From the article:

A Southwest Research Institute scientist measured the properties of ice-brine mixtures as cold as -145 degrees Fahrenheit to help confirm that salty water likely exists between grains of ice or sediment under the ice cap at Mars’ south pole. 

University of Leeds - Energy unleashed by submarine volcanoes could power a continent

Title:

Energy unleashed by submarine volcanoes could power a continent

 

By:

University of Leeds 

Published:

Phys.org, 21 April 2021

https://phys.org/news/2021-04-energy-unleashed-submarine-volcanoes-power.html

From the article:

Volcanic eruptions deep in our oceans are capable of extremely powerful releases of energy, at a rate high enough to power the whole of the United States, according to research published today.

Implications for megathrust earthquakes and tsunamis from seismic gaps south of Java Indonesia [Scholarly Article - Nature, 17 September 2020]

Title:

Implications for megathrust earthquakes and tsunamis from seismic gaps south of Java Indonesia

 

Authors:

S. Widiyantoro, E. Gunawan, A. Muhari, N. Rawlinson, J. Mori, N. R. Hanifa, S. Susilo, P. Supendi, H. A. Shiddiqi, A. D. Nugraha & H. E. Putra

 

Published:

Nature, 17 September 2020

https://www.nature.com/articles/s41598-020-72142-z

 

Abstract:

Relocation of earthquakes recorded by the agency for meteorology, climatology and geophysics (BMKG) in Indonesia and inversions of global positioning system (GPS) data reveal clear seismic gaps to the south of the island of Java. These gaps may be related to potential sources of future megathrust earthquakes in the region. To assess the expected inundation hazard, tsunami modeling was conducted based on several scenarios involving large tsunamigenic earthquakes generated by ruptures along segments of the megathrust south of Java. The worst-case scenario, in which the two megathrust segments spanning Java rupture simultaneously, shows that tsunami heights can reach ~ 20 m and ~ 12 m on the south coast of West and East Java, respectively, with an average maximum height of 4.5 m along the entire south coast of Java. These results support recent calls for a strengthening of the existing Indonesian Tsunami Early Warning System (InaTEWS), especially in Java, the most densely populated island in Indonesia.

 

Columbia University - Deep-Earth Structures Discovered That May Signal Enormous Hidden Metal Lodes

Title:
Deep-Earth Structures Discovered That May Signal Enormous Hidden Metal Lodes

By:
Earth Institute at Columbia University

Published:
SciTechDaily, 30 July 2020
https://scitechdaily.com/deep-earth-structures-discovered-that-may-signal-enormous-hidden-metal-lodes/

From the article:
If the world is to maintain a sustainable economy and fend off the worst effects of climate change, at least one industry will soon have to ramp up dramatically: the mining of metals needed to create a vast infrastructure for renewable power generation, storage, transmission, and usage. The problem is, demand for such metals is likely to far outstrip currently both known deposits and the existing technology used to find more ore bodies.

Now, in a new study, scientists have discovered previously unrecognized structural lines 100 miles or more down in the Earth that appear to signal the locations of giant deposits of copper, lead, zinc and other vital metals lying close enough to the surface to be mined, but too far down to be found using current exploration methods. The discovery could greatly narrow down search areas, and reduce the footprint of future mines, the authors say. The study was recently published in the journal Nature Geoscience.