Hexagonal structures in sediments are evidence of repeated wet and dry conditions on the Red Planet.
geomorphology
Posted inNews
Las plantas construyen dunas pero pueden acelerar la erosión durante tormentas fuertes
Cuando las olas golpean las dunas con vegetación, se forman áreas anegadas frente a las plantas, lo que facilita que la arena sea arrastrada por la corriente más fácilmente. Sin embargo, las plantas aún son necesarias para formar las dunas en primera instancia.
Posted inResearch Spotlights
Mud Could Have Made Meandering Rivers Long Before Plants Arrived
New evidence from 1.2-billion-year-old rocks suggests that single, sinuous channels could have formed in muddy floodplain sediments without the stabilizing help of vegetation.
Posted inNews
Plants Build Dunes but Can Speed Erosion During Severe Storms
When waves hit vegetated dunes, waterlogged areas form in front of plants, making for sand that’s easier to wash away. But you still need plants to form dunes in the first place.
Posted inNews
Supersized Potholes Discovered off South African Coast
Curious circular pits off South Africa’s Eastern Cape coast are larger than any similar feature previously recorded. Their origin remains a morphological mystery.
Posted inNews
As the Arctic Warms, These Rivers Are Slowing Down
The Arctic is warming up, but instead of large rivers migrating faster, they’re actually slowing down because of shrubification.
Posted inNews
One Surface Model to Rule Them All?
For the first time, scientists have forged a nearly all-encompassing model of Earth’s surface evolution over the past 100 million years.
Posted inNews
In New Zealand, Fish Are Helping Scientists Find Gold
Enormous amounts of gold lie buried beneath the rubble of New Zealand’s mountains, and scientists are using freshwater fish genetics to find it.
Posted inNews
A 1952 Landslide Hints at Early Permafrost Thaw in the Arctic
Scientists took a deeper look at a 70-year-old slide and found that climate change likely set the stage for the disaster.
Posted inEditors' Highlights
Topography Along the Apennines Reflects Subduction Dynamics
Topography and exhumation vary strongly along the Apennines, reflecting the geometry of the Moho and different geodynamic mechanisms.