Plateau definition is - a usually extensive land area having a relatively level surface raised sharply above adjacent land on at least one side : tableland. How to use plateau in a sentence.
Dec 30, 2015· This plateau has been formed as the result of volcanic eruptions with a consequent coating of basalt lava (Flood Basalt Plateau). Colorado Plateau. It is lying to western part of U.S.A. It is the largest plateau in America. It is divided by the Colorado River and the Grand Canyon. This plateau is an example of intermontane plateau.
plateau meaning: 1. a large flat area of land that is high above sea level 2. a period during which there are no…. Learn more.
Mar 03, 2021· An extensive, thick, smooth flow or succession of flows of high-temperature, fluid basalt erupted from fissures, flooding topographic lows, and
pla·teau (plă-tō′) n. pl. pla·teaus or pla·teaux (-tōz′) 1. An elevated, comparatively level expanse of land; a tableland. 2. A relatively stable level, period, or state: Mortgage rates declined, then reached a plateau. intr.v. pla·teaued, pla·teau·ing, pla·teaus To reach a stable …
Definition of columbia plateau in the Definitions.net dictionary. Meaning of columbia plateau. What does columbia plateau mean? ... It is named for the Columbia River Plateau, a flood basalt plateau formed by the Columbia River Basalt Group during the late Miocene and early Pliocene. The arid sagebrush steppe and grasslands of the region are ...
Definition of Plateau Landform. ... In North America, the Columbia plateau landforms, along the Columbia river which is composed of basalts, ejected over the same hotspot which underlies the Yellowstone landform today. These are some of the most unique forms of lava plateau landmasses.
plateau basalt An extensive, thick, smooth flow or succession of flows of high-temperature, fluid basalt erupted from fissures, flooding topographic lows, and accumulated to form a plateau. Source for information on plateau basalt: A Dictionary of Earth Sciences dictionary.
Mar 21, 2015· By definition, basalt is an aphanitic (fine-grained) igneous rock with generally 45-55% silica (SiO2) and less than 10% feldspathoid by volume, and where at least 65% of the rock is feldspar in the form of plagioclase. It is the most common …
Plateau, extensive area of flat upland usually bounded by an escarpment (i.e., steep slope) on all sides but sometimes enclosed by mountains. The essential criteria for plateaus are low relative relief and some altitude. Columbia Plateau. The Columbia Plateau is uniformly covered with basaltic lava flows and spans an area of about 100,000 ...
The least explosive type of volcano is called a basalt plateau. These volcanoes produce a very fluid basaltic magma with horizontal flows. The form of these volcanoes is flat to gently sloping and they can occupy an area from 100,000 to 1,000,000 square kilometers.
Figure 15.14. (A) The Deccan Traps flood basalt plateau consists of more than 6500 feet (>2000 m) of flat-lying basalt lava flows and covers an area of nearly 200,000 square miles (500,000 km 2) similar to the Columbia River basalts of the northwestern United States.This photo shows a thick stack of basalt lava flows north of Mahabaleshwar.
a basalt that forms usually extensive sheets on tectonically stable areas that have not undergone folding. It is assumed that the composition of plateau basalt most fully reflects the composition of abyssal basaltic magmas.
@article{osti_5292161, title = {Repository site definition in basalt: Pasco Basin, Washington}, author = {Guzowski, R. V. and Nimick, F. B. and Muller, A. B.}, abstractNote = {Discussion of the regional setting, geology, hydrology, and geochemistry of the Pasco Basin are included in this report. Pasco basin is a structural and topographic basin of approximately 2000 mi/sup 2/ (5180 km/sup 2 ...
Aug 02, 2021· We present here the paleointensity results of basalt samples from Rajmahal (25.10°N; 87.40°E) and Sylhet Traps (25.22°N; 91.71°E) of eastern India (~117 Ma) to know the strength of the earth's magnetic field during the early Cretaceous from these locations. The modified version of the Thellier–Thellier paleointensity method of, in field-zero field-zero field-in field (IZZI) protocol and ...
Plateau-basalt definition is - basalt extruded on continental areas that lacks olivine and may contain quartz.
It is a wide flood basalt plateau between the Cascade Range and the Rocky Mountains, cut through by the Columbia River. In one of various usages, the term " Columbia Basin " refers to more or less the same area as the Columbia Plateau.
What is the definition of PLATEAU BASALT? What is the meaning of PLATEAU BASALT? How do you use PLATEAU BASALT in a sentence? What are synonyms for PLATEAU BASALT?
Basalt (US: / b ə ˈ s ɔː l t, ˈ b eɪ s ɒ l t /, UK: / ˈ b æ s ɔː l t, ˈ b æ s əl t /) is a 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 a moon.More than 90% of all volcanic rock on Earth is basalt. Rapid-cooling, fine-grained basalt is ...
The Indian subcontinent, or simply the subcontinent, is a physiographical region in South Asia.It is situated on the Indian Plate and projecting southwards into the Indian Ocean from the Himalayas.Geopolitically, the Indian subcontinent generally includes Bangladesh, Bhutan, India, Nepal, Pakistan and Sri Lanka, as well as Maldives. Geologically, the Indian subcontinent is related to the ...
Basalt is a dark-colored, fine-grained, igneous rock composed mainly of plagioclase and pyroxene minerals. It most commonly forms as an extrusive rock, such as a lava flow, but can also form in small intrusive bodies, such as an igneous dike or a thin sill. It has a …
basalt definition: 1. a type of black rock that comes from a volcano 2. a type of black rock that comes from a volcano…. Learn more.
This optimal P-T range of 800–950 °C and 10–18 kbar defined herein is most likely to characterise metamorphism of hydrated basalt at the base of a 40-km-thick Archaean oceanic plateau ...
In the southern area of the Danakil Graben the Upper Tertiary sedimentary basin fillings are replaced by "Afar Basalts" (plateau-forming flood basalt) flows. Les datations radiométriques de volcanites des dépôts du Graben confirment les dates paléontologiques .
Jun 14, 2020· The Colombia Plateau is a lava plateau located in the northwestern United States. Formed between 5 and 23 million years ago, the basalt layers in the Colombia Plateau …
Aug 24, 2014· plateau basalt, flood basalt Plateaubasalt, Flutbasalt, Trapp(basalt) m
plateau. (plă-tō′) 1. An elevated and usually flat area; a steady and consistent fever appears as a plateau on the patient's chart of vital signs. 2. The stage in training or skill acquisition when progress occurs at a very slow or flat rate in comparison with earlier phases.
A flood basalt or trap basalt is the result of a giant volcanic eruption or series of eruptions that coats large stretches of land or the ocean floor with basalt lava.. Flood basalts have covered areas as large as a continent in prehistory, creating great plateaus and mountain ranges.Flood basalts have erupted at various times throughout Earth history.They are clear evidence that the Earth has ...