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- Basalt plateaus, also known as flood basalts, are the result of giant volcanic eruptions that cover large stretches of land or the ocean floor with basalt lava1. These extensive basaltic lava flows create large areas of land covered by basalt, forming plateaus. Examples include the Columbia River Plateau in the United States, the Deccan Traps in India, and the Siberian Traps in Russia2.
Learn more:✕This summary was generated using AI based on multiple online sources. To view the original source information, use the "Learn more" links.A flood basalt (or plateau basalt) 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.en.wikipedia.org/wiki/Flood_basaltContinental basaltic lava flows can cover large areas of land and create extensive basalt plateaus, such as the Columbia River Plateau in the United States, the Deccan Traps in India, and the Siberian Traps in Russia. These large basaltic plateaus are remnants of ancient volcanic eruptions that occurred millions of years ago.geologyscience.com/rocks/basalt/ Basalt - Wikipedia
Basalt is an aphanitic (fine-grained) extrusive igneous rock formed from the rapid cooling of low-viscosity lava rich in magnesium and iron (mafic lava) exposed at or very near the surface of a rocky planet or moon. More than 90% of all volcanic rock on Earth is basalt. Rapid-cooling, fine-grained basalt is chemically equivalent to slow-cooling, coarse-grained gabbro. The eruption of basalt lava is observed b…
Wikipedia · Text under CC-BY-SA licenseBasalt | Properties, Formation, Composition, Uses - Geology …
See more on geologyscience.comBasalt is a widespread rock type that occurs in many parts of the world. It is associated with volcanic activity and can be found in various geologic settings, both on land and under the ocean floor. Here are some of the major occurrences and distributions of basalt globally: 1. Oceanic Basalt: The majority of basalt on …- Reviews: 2
- Published: Apr 10, 2018
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Columbia River Basalt Group Stretches from Oregon to Idaho
Dec 7, 2023 · 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 …
Plateau - The shape of the land, Forces and changes, Spotlight …
The lava that floods the landscape to create a lava plateau is composed primarily of basalt, a hard, often glassy, black volcanic rock. Basalt has low silica content, and the lava it creates …
Plateau Basalts (AKA Flood Basalts) | SpringerLink
Jun 17, 2022 · Plateau or flood lavas are characterized by their large spatial extent (>10 5 km 2), relatively flat topography, and occurrence of an apparently homogeneous and continuous …
Basalt | Definition, Properties, & Facts | Britannica
Oct 21, 2024 · They predominate among the lavas of mountain belts; their flows may build enormous plateaus, as in the northwestern United States, the Deccan of India, and the Paraná Basin of South America. The active volcanoes of …
Columbia Plateau - Wikipedia
The Columbia Plateau is an important geologic and geographic region that lies across parts of the U.S. states of Washington, Oregon, and Idaho. [1] It is a wide flood basalt plateau between the Cascade Range and the Rocky Mountains, …
Flood Basalt - an overview | ScienceDirect Topics
Flood Basalt refers to the result of massive volcanic basaltic eruptions that cover extensive areas of land or ocean floor, leading to the formation of plateaus and mountain ranges. These …
Flood basalt - SpringerLink
Table 2 presents major- and trace-element analyses of averaged representative basalts from four flood basalt plateaus. The major element compositions reflect the spectrum of hypersthene- to …
Flood Basalts | Volcano World | Oregon State University
Flood basalts are yet another strange type of "volcano." Some parts of the world are covered by thousands of square kilometers of thick basalt lava flows - individual flows may be more than …
The Origin of Basalt - SpringerLink
Sep 19, 2020 · Continental plateau basalt (continental flood basalt, CFB) forms by vast, aerially extensive outflows of basaltic lava, commonly emitted as repeated fissure eruptions and …
Flood basalt | geology | Britannica
In plateau: Formative processes lava flows (called flood basalts or traps) and volcanic ash bury preexisting terrain, as exemplified by the Columbia Plateau in the northwestern United States. …
The anatomy of Continental Flood Basalt Provinces: geological ...
Feb 1, 2005 · Continental flood basalt provinces (CFBPs) are commonly associated with spatially constrained melting anomalies located within the upper mantle (e.g., Ernst and Buchan, 2003).
Journal of Geophysical Research: Solid Earth
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 …
A Mantle Plume Initiation Model for the Wrangellia Flood Basalt …
Oct 11, 1991 · The vast Wrangellia terrane of Alaska and British Columbia is an accreted oceanic plateau with Triassic strata that contain a 3- to 6-kilometers thick flood basalt, bounded above …
An ancient recipe for flood-basalt genesis | Nature
Jul 27, 2011 · Matthew Jackson and Richard Carlson show that basalts from the largest volcanic event in geological history — the Ontong Java plateau — exhibit the isotopic and trace …
What Is Basalt? - ThoughtCo
Feb 2, 2019 · Basalt is the dark, heavy volcanic rock that makes up most of the world's oceanic crust. Some of it erupts on land, too, but to a first approximation, basalt is an oceanic rock. …
Rifting of the oceanic Azores Plateau with episodic volcanic …
Nov 12, 2020 · Unlike typical tholeiitic basalts of oceanic plateaus, the 1.2 km vertical submarine stratigraphic profile reveals two successive compositionally distinct basanitic to alkali basaltic …
Linking the Wrangellia flood basalts to the Galápagos hotspot
Apr 21, 2021 · The paleogeographic constraints, thermal estimates, and geochemistry suggests that it is possible that the Galápagos hotspot generated the volcanic rocks of Wrangellia and …
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