Flood basalt - Wikipedia
A flood basalt (or plateau basalt [1]) is the result of a giant volcanic eruption or series of eruptions that covers large stretches of land or the ocean floor with basalt lava. Many flood basalts have been attributed to the onset of a hotspot reaching the surface of the Earth via a mantle plume. [2]
Flood Basalt - an overview | ScienceDirect Topics
Flood basalt is formed by an eruption or series of eruptions of large volcanic episodes that cover vast stretches of land or ocean floor with flows of mafic igneous rocks (basalt lava flows). A flood-basalt province is popularly known as Trap (Deccan Traps in India).
Columbia River Basalt Group Stretches from Oregon to Idaho
The Columbia River Basalt Group (CRBG) is the youngest, smallest and one of the best-preserved continental flood basalt province on Earth, covering over 210,000 km2 of mainly eastern Oregon and Washington, western Idaho, and part of northern Nevada.
Flood Basalts | Volcano World | Oregon State University
The most famous US example of a flood basalt province is the Columbia River Basalt province, covering most of SE Washington State and extending all the way to the Pacific and into Oregon. The Deccan Traps of NW India are much larger and the Siberian Traps are even larger than that (but poorly understood).
Flood basalts, mantle plumes and mass extinctions
Flood basalts are one type of large igneous province (LIP) that characterise the Earth's surface and have been formed at various times in the geological past - some in a submarine environment and some on land (see LIP map).
Flood basalts | AMNH - American Museum of Natural History
Among the major outpourings of lava are the huge plains known as flood basalt provinces. The Siberian basalts, the Deccan traps of India, and the Karoo basalts of southern Africa are among the largest of these on land; similar vast plains exist in the ocean basins as well.
Plateau Basalts (AKA Flood Basalts) | SpringerLink
Jun 17, 2022 — Flood basalt or plateau lavas have been described on the scientific literature for more than one century.
The Magmatic Architecture of Continental Flood Basalts I: …
Nov 4, 2021 — Flood basalts are some of the largest magmatic events in Earth history, with intrusion and eruption of millions of km 3 of basaltic magma over a short time period (∼1–5 Ma). A typical continental flood basalt (CFB) is emplaced in hundreds of individual eruptive episodes lasting decades to centuries with lava flow volumes of 10 3 –10 4 km 3 .
Flood basalt - SpringerLink
Flood basalts form thick piles of basaltic lava flows of vast areal extent (often exceeding 100,000 km 2) and volume (exceeding 100,000 km 3), usually on continental crust. Individual flows may be very voluminous, both exceeding 20 m in thickness, and covering more than 1,000 km 2 ( Table 1 ).
Flood basalt buildup warms climate | Nature Geoscience
May 9, 2022 — Nature Geoscience - Flood basalts are connected to Earth’s most extreme environmental crises, yet warming is sometimes observed before surface eruptions. Modelling reveals that a complex...