define basalt plateau

The Columbia Basin Province occupies the entire south-central portion of the state. It is a wide, arid lowland area between the Okanogan Highlands, the southern Cascade Range, the Idaho Rockies, and continues on through much of eastern Oregon and northern Nevada. The area is characterized by steep river canyons, extensive plateaus, and in places, tall and sinuous ridges.

A plateau is a flat area of land that is elevated above sea level. The word is French for 'table land,' and that term is also used for some smaller landforms that will be discussed further into ...

Define plateau. plateau synonyms, plateau pronunciation, plateau translation, English dictionary definition of plateau. n. pl. pla·teaus or pla·teaux 1. ... Plateau (geology) plateau basalt; plateau characteristic; Plateau Creek Pipeline Replacement Project; Plateau de Bure Interferometer; plateau development; Plateau geology;

Nov 01, 2009· A plateau forms when there is an erosion-resistant layer of rock (such as basalt or sandstone) over weaker layers.In places where the resistant rock layer is …

Nov 29, 2016· Most ground water used in the Columbia Plateau comes from layers of basalt collectively known as the Columbia River Basalt Group, a complex aquifer system made up hundreds of individual basalt flows. As part of this study, maps depicting the regional extent and geometry of the major basalt aquifers will be updated using geologic data from a ...

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.

The Columbia Plateau in eastern Washington, north-central and northeastern Oregon, and western Idaho covers more than 70,000 square miles underlain chiefly by basalt belonging to the Columbia River Basalt Group. The Plateau is a large structural basin whose deepest part lies near Pasco,

Region 4: The Columbia Plateau. The Columbia Plateau, also known as the Columbia Basin, is the site of one of the largest outpourings of lava that the world has ever seen. The Columbia Plateau flood basalts are a notable example of a "Large Igneous Province," where vast volumes of basalt are erupted over a relatively short period of time.

Sep 01, 2016· An area of the state of Tamil Nadu in the western portion of the Deccan Plateau. The Deccan Plateau, which is largely made up of basalt lava, covers some 300,000 square miles in west-central India 21. The Tibetan Plateau is the highest and most widespread plateau in the world, with an average altitude of 16,400 feet.

A third type of plateau can form where extensive 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 volcanism involved in such situations is commonly associated with hot spots. The lavas and ash are generally carried long distances ...

Other articles where Flood basalt is discussed: 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 volcanism involved in such situations is commonly associated with hot spots. The lavas and ash are generally carried long distances from their sources,…

Volcanic Plateau – As the name suggests, the volcanic plateau is the one which is formed by the small volcanic eruptions. The lava flow of these eruptions slowly builds up over time and a plateau hence formed is called a volcanic plateau. An example of such a plateau is North Island Volcanic Plateau or the Waimarino Plateau in New Zealand.

Basalt has a strict chemical definition. It is defined in the TAS diagram shown above. Basalt is an igneous rock that contains more than 45 and less than 52% of SiO2 and less than five percent of total alkalies (K2O + Na2O)3. Types of Basalt Basalt types: tholeiites vs alkali basalts. Tholeiitic basalt is relatively rich in silica and poor in ...

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 ...

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.

Basalt has a strict chemical definition. It is defined in the TAS diagram shown above. Basalt is an igneous rock that contains more than 45 and less than 52% of SiO2 and less than five percent of total alkalies (K2O + Na2O)3. Types of Basalt Basalt types: tholeiites vs alkali basalts. Tholeiitic basalt is relatively rich in silica and poor in ...

The Columbia River Plateau is underlain by a thick basalt sequence. The Columbia River basalt sequence contains both basalt flows and sedimentary interbeds. These sedimentary interbeds, which are layers of sedimentary rock between lava flows, are the main aquifer zones in the basalt sequence. ... The objective of this study was to define those ...

Feb 06, 2010· A lava plateau (also called a basalt plateau or flood basalt) is a special type of plateau, formed neither by the collision of continental plates nor by uplift. Instead, this layered plateau is built up over millions of years by lava repeatedly pouring forth through fissures, or long narrow cracks in …

Dec 24, 2012· The Columbia Plateau is located in parts of Washington, Oregon, and Idaho states of the U.S. It is bordered by the Cascade Range and Rocky Mountains and divided by the Columbia River. This plateau has been formed as the result of volcanic eruptions with a consequent coating of basalt lava; therefore, it is categorized as a Flood Basalt Plateau.

River Basalt, basalt of Mariposa Lake, Madison River Basalt, and Osprey Basalt. Sediments are intercalated in the volcanic section below the Huckleberry Ridge and Mesa Falls Tuffs and within the Junction Butte Basalt, sediments and basalts of The Narrows, Undine Falls Basalt, Plateau Rhyolite, and Osprey Basalt. INTRODUCTION

Basalts which are greatly decomposed and altered by secondary processes are known as diabases and basalt-porphyry. Basalts which have erupted from large tectonic fissures over enormous areas of hundreds and thousands of square kilometers are called plateau-basalts or traps; after setting and cooling, their flows crack and form pillars ...

Apa itu plateau basalt? yang dimaksud dengan plateau basalt adalah kata yang memiliki artinya, silahkan ke tabel. plateau basalt biaa ada dalam kamus atau glossary berikut ini untuk penjelasan apa arti makna dan maksudnya.

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.

The Columbia River Basalt Group (CRBG) consists of a thick sequence of Miocene flood basalt that covered northern Oregon, eastern Washington, and western Idaho between 17 and 6 million years ago. It is an important regional aquifer system, and, in its folded and faulted flows, it records the late Cenozoic structural evolution of much of the Pacific Northwest.

The Deccan Traps are a main cause of the special geography and geology of South India. They are a large igneous province on the Deccan Plateau of west-central India (between 17–24N, 73–74E) and one of the largest volcanic features on the planet. They consist of multiple layers of solidified flood basalt that are more than 2,000 m (6,562 ft) thick and cover an area of 500,000 square ...

Mar 13, 2018· Hence it is called 'flood basalt plateau'. Colorado Plateau. Southwestern part of USA. 1. Bounded by the Rocky Mountains from north and east, ... Anova Formula: Definition, ...

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.

The Antrim Plateau volcanics, Australia's largest Phanerozoic flood-basalt province, crop out extensively in the East Kimberley, Victoria River and Daly River Basin areas, with a maximum thickness of the formation estimated to exceed 1000 m to the west. Interbedded sedimentary rocks indicate that the basalts were extruded in an area near sea level and subject to marine incursions. In general ...