![(A) The Marsili Basin lies in ~3000 m water depth in the Tyrrhenian Sea. Ocean Drilling Program Leg 107 Sites 650 and 651 marked as red circles. Red box shows map in (B). Campi Flegrei (CF) fields (source of 39.8 ka Campanian Ignimbrite and 14.9 ka Neapolitan Yellow Tuff) shown with nearby submarine canyons (Dohrm [DC] and Magnaghi [MC]) as yellow lines. Ve—Vesuvius; SC—Stromboli Canyon. (B) CHIRP subbottom profiles shown as white dashed lines. Continuous white lines involved the acquisition of additional airgun seismic data. Bathymetry is a merged dataset of a 40-m grid CHIANTI multibeam bathymetry together with EMODNET bathymetry (EMODnet Bathymetry Consortium, 2020). Contour interval is 1000 meters. Figure 2 is E-W profile through Site 650. -- Geology](https://i0.wp.com/astrobiology.com/wp-content/uploads/2023/11/Newstudyreveals.png?resize=1200%2C720&ssl=1)
Researchers have discovered a series of large undersea sediment deposits in a region near Italy that were likely formed by an ancient volcanic supereruption.
volcano
Posted inAway Teams & Field Reports, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Extinction events, Planetary Protection & Biosafety
Astrobiology Away Team Opportunity On A New Island Off The Coast Of Japan?
Editor’s note: While this new island is close to an existing island – surrounded by ocean – it will be more or less sterile for a while as the lava […]
Posted inAstrogeology, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Press Release
Ancient Carbon In Rocks Releases As Much Carbon Dioxide As The World’s Volcanoes
A new study led by the University of Oxford has overturned the view that natural rock weathering acts as a CO2 sink, indicating instead that this can also act as […]
Posted inAstrogeology, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Extinction events, Impact events, Press Release
Cornell Fills Data Gap For Volcanic Ash Effects On Earth Systems
Volcanic ash is no ordinary dust: It gets injected into the atmosphere, climbs to the stratosphere, impacts climate, powders roadways and clogs jet engines.
Posted inAstrogeology, Astronomy & Telescopes, Biogeochemical Cycles & Geobiology, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report
The Prospect of Detecting Volcanic Signatures on an ExoEarth Using Direct Imaging
The James Webb Space Telescope (JWST) has provided the first opportunity to study the atmospheres of terrestrial exoplanets and estimate their surface conditions.
Posted inAstrogeology, Biogeochemical Cycles & Geobiology, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Press Release
A Potentially Volcano-Covered Earth-Size World Discovered
Astronomers have discovered an Earth-size exoplanet, or world beyond our solar system, that may be carpeted with volcanoes. Called LP 791-18 d, the planet could undergo volcanic outbursts as often […]
Posted inAnalog Studies, Astrogeology, Away Teams & Field Reports, Biosignatures & Paleobiology, Caves, Craters, Mountains, Subsurface, Lava Tubes, Fossils & Paleontology, Genomics, Proteomics, Bioinformatics, Mars, Press Release
Away Team Exploration Of Lava Caves Informs The Search For Life On Mars
In August 2019, Chloe Fishman crawled into a cave beneath the largest active volcano on the planet. Along with scientists from NASA and other institutions, she had come to Hawaii’s […]
Posted inAway Teams & Field Reports, Extremeophiles and Extreme Environments, Microbiology & Virology, Panspermia, Planetary Protection & Biosafety, Press Release
Rare Opportunity To Study Short-lived Volcanic Island Reveals Sulfur-metabolizing Microbes
In 2015, a submarine volcano in the South Pacific erupted, forming the Hunga Tonga Hunga Ha’apai island, destined to a short, seven-year life.
Posted inAstrogeology, Atmospheres, Climate, Weather, Habitable Zones, Press Release, Venus
Massive Volcanism May Have Altered Ancient Venus’ Climate
Volcanic activity lasting hundreds to thousands of centuries and erupting massive amounts of material may have helped transform Venus from a temperate and wet world to the acidic hothouse it […]
Posted inHabitable Zones
Dinosaurs' Ascent Was Driven By Volcanoes Powering Climate Change
The rise of dinosaurs coincided with environmental changes driven by major volcanic eruptions over 230 million years ago, a new study reveals. The Late Triassic Carnian Pluvial Episode (CPE) saw […]