Martian volcanic eruption thought to be only 50,000-210,000 years old
Using Mars Reconnaissance Orbiter (MRO) images scientists now believe they have located a volcanic eruption on Mars that could have erupted violently as recently as only 50,000 years ago, and is located deep within Mars’ volcano country. The overview map to the right indicates the location of this volcanic with the blue cross. The red dots surrounded by white ovals are distinct quakes that InSight has detected. From their paper’s abstract:
Stratigraphic relationships indicate a relative age younger than the surrounding volcanic plains and the [nearby] Zunil impact crater (~0.1–1 [million years]), with crater counting suggesting that the deposit has an absolute model age of 53 ± 7 to 210 ± 12 [thousand years]. This young age implies that if this deposit is volcanic then the Cerberus Fossae region may not be extinct and that Mars may still be volcanically active. This interpretation is consistent with the identification of seismicity in this region by the [InSight] lander, and has additional implications for astrobiology.
The Cerberus Fossae region is a series of long fissures that scientists think were created when the underground magma pushed up, stretched the surface, and thus caused it to crack. This particular feature suggests that when the ground cracked it sometimes also did so in conjunction with a volcanic eruption.
Below is a zoomed-in context mosaic, taken from figure 1 of the above paper, showing the feature itself and the surrounding terrain.
» Read more
Using Mars Reconnaissance Orbiter (MRO) images scientists now believe they have located a volcanic eruption on Mars that could have erupted violently as recently as only 50,000 years ago, and is located deep within Mars’ volcano country. The overview map to the right indicates the location of this volcanic with the blue cross. The red dots surrounded by white ovals are distinct quakes that InSight has detected. From their paper’s abstract:
Stratigraphic relationships indicate a relative age younger than the surrounding volcanic plains and the [nearby] Zunil impact crater (~0.1–1 [million years]), with crater counting suggesting that the deposit has an absolute model age of 53 ± 7 to 210 ± 12 [thousand years]. This young age implies that if this deposit is volcanic then the Cerberus Fossae region may not be extinct and that Mars may still be volcanically active. This interpretation is consistent with the identification of seismicity in this region by the [InSight] lander, and has additional implications for astrobiology.
The Cerberus Fossae region is a series of long fissures that scientists think were created when the underground magma pushed up, stretched the surface, and thus caused it to crack. This particular feature suggests that when the ground cracked it sometimes also did so in conjunction with a volcanic eruption.
Below is a zoomed-in context mosaic, taken from figure 1 of the above paper, showing the feature itself and the surrounding terrain.
» Read more
