Results 1 to 10 of about 20,360 (229)

Seismic characterization of lava flow facies in the critical zone of the deccan traps using shear wave velocity models [PDF]

Scientific Reports
The critical zone is the uppermost layer of Earth’s crust, where the geosphere, hydrosphere, atmosphere, and biosphere interact to sustain life.
Rashi Sharma, Rahul Dehiya, Sudipta Sarkar, Raymond Duraiswami   +3 more
doaj   +2 more sources

Atmospheric CO2 drawdown during the Emeishan flood basalt volcanism [PDF]

Nature Communications
The conventional model linking large igneous provinces (LIPs) to atmospheric CO2 concentrations (pCO2) predicts elevated CO2 during volcanic emplacement, leading to biotic crises. However, this generalization requires testing.
Jiaheng Shen, Yi Ge Zhang, Dong-Xun Yuan, Yi-Gang Xu   +3 more
doaj   +2 more sources

Limited long-term cooling effects of Pangaean flood basalt weathering [PDF]

Nature Communications
The emplacement of large igneous provinces (LIPs) is known to be a driver of climate change in Earth’s past. However, the balance of climate warming through CO2 emission and cooling through weathering is poorly understood.
Jack Longman, Benjamin J. W. Mills, Andrew S. Merdith   +2 more
doaj   +2 more sources

Petrological and geochemical characteristics of flood and shield basalts from Kesem-Megezez section, northwestern Ethiopian Plateau: Implication for their mantle source variations [PDF]

Heliyon, 2023
The Kesem-Megezez Section is located on the western escarpment of the main Ethiopian rift, central Ethiopia, part of the northwestern Ethiopia plateau, and hosts both flood basalts (Kesem Oligocene basalts) and shield volcano basalts (Megezez Miocene ...
Birhane Girum, Takele Chekol, Daniel Meshesha   +2 more
doaj   +2 more sources

Thickness Characteristics of Pāhoehoe Lavas in the Deccan Province, Western Ghats, India, and in Continental Flood Basalt Provinces Elsewhere

Frontiers in Earth Science, 2021
Constraining the eruption rates of flood basalt lava flows remains a significant challenge despite decades of work. One potential observable proxy for eruption rates is flood basalt lava-flow lobe thicknesses, a topic that we tackle here quantitatively ...
Stephen Self, Tushar Mittal, Tushar Mittal, Anne Elizabeth Jay   +3 more
doaj   +1 more source

Columbia River Rhyolites: Age-Distribution Patterns and Their Implications for Arrival, Location, and Dispersion of Continental Flood Basalt Magmas in the Crust

Geosciences, 2023
Columbia River province magmatism is now known to include abundant and widespread rhyolite centers even though the view that the earliest rhyolites erupted from the McDermitt Caldera and other nearby volcanic fields along the Oregon–Nevada state border ...
Martin J. Streck, Vanessa M. Swenton, William McIntosh, Mark L. Ferns, Matt Heizler   +4 more
doaj   +1 more source

Late Permian High-Ti Basalt in Western Guangxi, SW China and Its Link With the Emeishan Large Igneous Province: Geochronological and Geochemical Perspectives

Frontiers in Earth Science, 2021
High-Ti (Ti/Y) flood basalts are widely distributed in the Late Permian Emeishan large igneous province (LIP), SW China, and their spatial distribution and genetic mechanism are important to reveal the role of plume-lithosphere interactions in the LIP ...
Chenguang Zhang, Chenguang Zhang, Renyu Zeng, Renyu Zeng, Renyu Zeng, Changming Li, Changming Li, Jian Jiang, Tianguo Wang, Tianguo Wang, Xingjun Shi   +10 more
doaj   +1 more source

Development and research of basalt plastic material for the flood protection structures [PDF]

E3S Web of Conferences, 2023
Due to the increasing number of catastrophic floods around the world, creation of an effective system to protect against natural disasters became particularly relevant.
Lukachevskaya I. G., Kychkin A. K., Lebedev M. P., Gavrilieva A. A., Kychkin A. A.   +4 more
doaj   +1 more source

Mantle Wavespeed and Discontinuity Structure Below East Africa: Implications for Cenozoic Hotspot Tectonism and the Development of the Turkana Depression

Geochemistry, Geophysics, Geosystems, 2023
Ethiopia's Cenozoic flood basalt magmatism, uplift, and rifting have been attributed to one or more mantle plumes. The Nubian plate, however, has drifted 500–1,000 km north since initial magmatism at ∼45 Ma, having developed above mantle that now ...
A. Boyce, R. Kounoudis, I. D. Bastow, S. Cottaar, C. J. Ebinger, C. S. Ogden   +5 more
doaj   +1 more source

Eruption Rates, Tempo, and Stratigraphy of Paleocene Flood Basalts on Baffin Island, Canada

Geochemistry, Geophysics, Geosystems, 2022
High‐temperature melting in mantle plumes produces voluminous eruptions that are often temporally coincident with mass extinctions. Paleocene Baffin Island lavas—products of early Iceland mantle plume activity—are exceptionally well characterized ...
Joseph Biasi, Paul Asimow, Forrest Horton, Xenia Boyes   +3 more
doaj   +1 more source