flood basalt


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Related to flood basalt: columnar jointing, Pyroclastic rock

flood basalt

[′fləd bə‚sȯlt]
(geology)
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
The late Cenozoic evolution of the Columbia River system in the Columbia River flood basalt province.
ENPNewswire-August 27, 2019--UNIVERSITY OF HELSINKI: First direct evidence for a mantle plume origin of Jurassic flood basalts in southern Africa
The million-year sequence of eruptions spewed lava flows for distances of at least 500 kilometers across the Indian continent, creating the so-called Deccan Traps flood basalts that in some places are nearly 2 kilometers thick.
McHone (1996) proposed that similar basalts in basins of New Jersey to Pennsylvania (USA) are also linked to this great "initial Pangaean" flood basalt event of northeastern North America, with perhaps 50,000 kms of tholeiite extruded over an area of at least 500,000 km1 A volcanic event of this size must have had severe consequences for the Late Triassic world environment (McHone 2003).
Garner, P., Continental Flood Basalts Indicate a pre-Mesozoic Flood/post- Flood Boundary, CENTech.
These events coincided with emplacement of the North Atlantic volcanic margins and associated continental flood basalts. The temporal correlations among these three examples--Ontong Java, Kerguelen, and the North Atlantic provinces--as well as of continental flood basalt provinces, and global environmental changes, suggests some relationship must exist.
It is the largest flood basalt unit found on earth and points to the origin of the giant sulphur clouds that engulfed our planet following the eruption.
The lander touched down on a smooth flood basalt plain next to a relatively fresh impact crater (now officially named the Zi Wei crater) that had conveniently excavated bedrock from below the regolith for the Yutu rover to study.
The Al-Haruj flood basalt field (45,000 [km.sup.2]) is the largest of four Tertiary to Recent volcanic provinces in central Libya [1] Figure 1).
Io's impressive lava flows are possibly similar to continental flood basalt lavas on Earth, such as the Columbia River basalts in the northwestern U.S.