A detailed scientific diagram illustrating the internal structure of a maar-diatreme volcano. The cross-section shows a funnel-shaped volcanic pipe reaching nearly 1,000 meters deep, cutting through "hard" and "soft" substrate layers. Key features labeled include: The Crater: A central lake infill at the surface, surrounded by an ejecta ring, debris apron, and solidified lava lake. The Diatreme: Divided into an upper diatreme (near the surface) and a lower diatreme, showing various internal features like turbidite slides, collapses, and post-eruptive subsidence. Magmatic Features: Red-colored dykes and a sill branching out from the root zone at the bottom of the structure. Hydrogeology: A dashed blue line indicates the ground water table intersecting the upper diatreme.
A title slide for the science podcast Whimsical Wavelengths, Season 2, Episode 14, titled "Maars on Mars: Mapping Volcanic Water Interactions on the Red Planet." The background is a photograph of a terrestrial volcanic landscape under a clear blue sky. In the foreground, there are dark, textured pahoehoe lava flows with ropy surfaces and sparse dry grass. In the middle ground, a small, circular maar crater contains a shallow pool of water surrounded by reddish-brown vegetation. The far background shows the low-slung, rocky rim of the crater against the horizon.
1/3🧪⚒️This time the show gets into the details of #phreatomagmatic ( #explosive 🌋 #eruptions caused by 🌊 & Magma) processes—both here and on #Mars.
Dr. Allison Graettinger joins the pod to discuss possible #Martian #Maars. These 🌋s are unassuming on the surface but tell a violent story beneath.
