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Type of volcanic rock
Alkali basalt or alkali olivine basalt is a dark-colored, porphyritic volcanic rock usually found in oceanic and continental areas associated with volcanic
Alkali_basalt
Magnesium- and iron-rich extrusive igneous rock
more than 5% alkali metal oxides. This places basalt in the B field of the TAS diagram. Such a composition is described as mafic. Basalt is usually dark
Basalt
the last 8 million years, each of which began with the effusion of alkali basalt and culminated with the eruption of felsic magma. Each cycle was less
Volcanism of the Mount Edziza volcanic complex
Volcanism_of_the_Mount_Edziza_volcanic_complex
Geological formation in Northern New Brunswick, Canada
are the type locality. It is conformably overlain by massive pillowed alkali basalt of the Little River Formation and conformably underlain by crystal tuff
Flat_Landing_Brook_Formation
Series of sub-alkaline magmas
containing 12% to 16% Al2O3 versus 16% to 20% Al2O3 for calc-alkali basalts. Like all basalt, the tholeiitic type is dominated by olivine, clinopyroxene
Tholeiitic_magma_series
Active volcano in the Hawaiian Islands
"runny" Hawaiian lavas due to its high (over 62%) silica composition (typical basalt is only 50% silica). Geologists hypothesize that Puʻu Waʻawaʻa originally
Hualālai
Variety of high-magnesium basalt that is very rich in the mineral olivine
olivine and more typical tholeiitic basalt. The name "picrite" can also be applied to an olivine-rich alkali basalt: such picrite consists largely of phenocrysts
Picrite_basalt
Island in the Portuguese archipelago of the Azores
of alkali-basalt cinder cones and lava flows with minor trachyte; the trachyte stratovolcano of the Água de Pau Massif; a field of alkali-basalt cinder
São_Miguel_Island
Volcanic complex in British Columbia, Canada
assistant Maurice Lambert had established that episodic eruptions of alkali basalt and silicic peralkaline lavas had taken place at the MEVC over a timespan
Mount_Edziza_volcanic_complex
Very large volume eruption of basalt lava
mid-ocean ridges) occurs less commonly, and there are rare cases of alkali basalts. Regardless of composition, the flows are very homogeneous and rarely
Flood_basalt
Geological formation in British Columbia, Canada
Range at the southern end of the MEVC. Both members consist mainly of alkali basalt; hawaiite and picrite occur locally at higher elevations. These volcanic
Nido_Formation
Lava field in British Columbia, Canada
were formed after the Storm Cone eruption and consist mainly of alkali basalt. Alkali basalt and hawaiite compose the younger Sidas and Twin cones, both of
Desolation_Lava_Field
Hot semifluid material found beneath the surface of Earth
while a greater degree of partial melting (8% to 11%) can produce alkali olivine basalt. Oceanic magmas likely result from partial melting of 3% to 15%
Magma
Island in the southeastern Pacific
southeastern flanks are composed of younger flows consisting of basalt, alkali basalt, hawaiite, mugearite, and benmoreite from eruptive fissures starting
Easter_Island
Volcanic rock
Hawaiite is an olivine basalt with a composition between alkali basalt and mugearite. It was first used as a name for some lavas found on the island of
Hawaiite
Stratovolcano in South of Iceland
Hekla's basaltic andesite lava generally has a SiO2 content of over 54%, compared to the 45–50% of other nearby transitional alkaline basalt eruptions
Hekla
Plateau in British Columbia, Canada
and Kaia Bluff both consist of alkali basalt erupted from the Gamma Peak eruptive centre. A lower unit of alkali basalt with minor hawaiite is exposed
Big_Raven_Plateau
Subdivision of the subalkaline magma series
continental crust, and mixing with partial melts of continental crust. Alkali basalt Alkaline magma series Igneous differentiation Barker, Daniel S. (1983)
Calc-alkaline_magma_series
Rock formed through the cooling and solidification of magma or lava
the alkalic, the alkali-calcic, the calc-alkali, and the calcic series. His definition of the alkali series, and the term calc-alkali, continue in use
Igneous_rock
Shield volcano in Veracruz, Mexico
in Veracruz, Mexico. Lavas from San Martin vary between basanite and alkali basalt. Locally the volcano is also known as Tiltépetl (Black Mountain in the
San_Martin_Tuxtla
Country in West Asia
name of harrat (the singular is harrah), form one of Earth's largest alkali basalt regions, covering some 180,000 square kilometres (69,000 sq mi). Except
Saudi_Arabia
Volcano in British Columbia, Canada
being basalt which forms lava flows, cinder cones and ash beds on the flanks of the mountain. Basalt at Mount Edziza is in the form of alkali basalt and
Mount_Edziza
Escarpment in British Columbia, Canada
lava flows are overlain by alkali basalt of the Kitsu Member which is also exposed along the escarpment. This alkali basalt is in the form of lava flows;
Mess_Creek_Escarpment
Northern island of Equatorial Guinea, Central Africa
former name of the island. The island is composed mostly of basalt, mostly alkali basalt and hawaiites, and to a lesser extent mugearites. The island
Bioko
Large igneous province in India
observed as highly altered forms. Other rock types present include alkali basalt, nephelinite, lamprophyre and carbonatite. Mantle xenoliths have been
Deccan_Traps
Geologic formation
The Alkali Canyon Formation is composed of basalt gravel and tuffaceous sediment. The Alkali Canyon Formation overlies the Columbia River Basalt Group
Alkali_Canyon_Formation
Volcanic complex in British Columbia, Canada
namely ankaramites, alkali basalts, trachybasalts, mugearites, hawaiites, phonolites, trachytes and rhyolites. Alkali basalts and ankaramites are the
Level_Mountain
Structural fibres spun from molten basalt
Basalt fibers are made from basalt by melting it and then turning the melt into fibers. Basalt is an igneous rock formed from magma that cools rapidly
Basalt_fiber
Volcano in Bolivia
lake"). It is a sill formed from primitive phyric alkali basalt that closely resembles ocean island basalt in composition and now appears as a hill. The rocks
Ch'iyar_Qullu_(Oruro)
Upwelling of abnormally hot rock within Earth's mantle
alkali basalt enriched in sodium and potassium relative to MORB. Larger islands, such as Hawaii or Iceland, are mostly tholeiitic basalt, with alkali
Mantle_plume
Volcanic field in Algeria
province. Part of the larger Oranie volcanic field, it has erupted alkali basalts, with one eruption date being 2.1 million years ago. List of volcanic
Nemours-Nedroma
Volcano in Hawaii, United States
volcano, gradually building itself up through underwater eruptions of alkali basalt before emerging from the sea through a series of surtseyan eruptions
Mauna_Loa
Mountain range in British Columbia, Canada
eroded remnants of the Kitsu Member. This stratigraphic unit consists of alkali basalt flows that preserve the unmodified upper surface of the original Spectrum
Spectrum_Range
Mountain range in northern Ethiopia
layer of alkali basalts and minor amounts of felsic (high-silica) volcanic rocks, such as rhyolite. In the waning stages of the flood basalt episode,
Ethiopian_Highlands
Igneous rock made up almost entirely of nepheline and clinopyroxene
may resemble basalt in hand specimen. However, basalt consists mostly of clinopyroxene (augite) and calcic plagioclase. Basalt, alkali basalt, basanite,
Nephelinite
Naming system for volcanic rocks
TAS stands for Total Alkali Silica. The TAS classification can be used to assign names to many common types of volcanic rocks based upon the relationships
TAS_classification
Type of volcanic rock
and not more than about 6% alkali metal oxides. This places the andesite in the O2 field of the TAS classification. Basaltic andesite, with a content of
Andesite
Pyroxene mineral
mantle and is common in peridotite xenoliths erupted in kimberlite and alkali basalt. Diopside is a precursor of chrysotile (white asbestos) by hydrothermal
Diopside
Mountain ridge in the country of Canada
of Mesozoic and Paleozoic age. These rocks are overlain by Miocene alkali basalt flows of the Raspberry Formation, the oldest geological formation of
Idiji_Ridge
Igneous intrusive rock with low quartz and equal plagioclase and alkali feldspar
extensional crustal settings or by partial melting of lower crust of alkali basalt composition. Diorite, monzonite, and syenite are found together on the
Monzonite
Active volcano in Hawaii
volcano, gradually growing larger and taller via underwater eruptions of alkali basalt lava before emerging from the sea with a series of explosive eruptions
Kīlauea
Stratovolcano in the San Mateo Mountains, North America
from 3.74 to 2.93 million years ago, was mostly basanite with some alkali basalt which formed mesa caps. This was accompanied by small volumes of more
Mount_Taylor_(New_Mexico)
Volcanic field in Libya
volcanic rocks consisting of olivine basalt that forms a tholeiitic to alkali basalt suite; the alkaline basalts were originally interpreted as hawaiite
Haruj
Type of igneous rock
listed as a range of minerals, such as diorite, diabase, greenstone or flood basalt, among others. Later in 1866 Hohenegger's definition of the mineral was
Teschenite
Type of igneous rock
composed mostly of quartz, alkali feldspar, mica and plagioclase. It forms from magma with a high content of silica and alkali metal oxides that slowly
Granite
Stratovolcanic complex
000 years B.C. This period of activity was essentially effusive producing basalt lava flows of trachyte. The superior layer includes the eruptive products
Sete_Cidades_Massif
Archipelago in the Indian Ocean
Flower, M.F.J., Evidence for the role of phlogopite in the genesis of alkali basalts Contrib. Mineral. Petrol. 32 (2) 126-137 1971 Flower, M.F.J., Rare earth
Comoro_Islands
Large volcano in Southern Iceland
Larsen, G.; Janebo, M.; Gudmundsson, M.T. (2021). "The explosive basaltic Katla eruption in 1918, south Iceland I: Course of events, tephra fall
Katla_(volcano)
Plateau in British Columbia, Canada
been the focus of volcanic activity over the last 7.5 million years. Alkali basalt, hawaiite and trachyte are among some of the volcanic rocks comprising
Kitsu_Plateau
American-Canadian geologist, volcanologist, and engineer (1924–2014)
Lambert. By 1970, the two geologists had established that eruptions of alkali basalt, followed by extrusion of silicic peralkaline lavas, had occurred episodically
Jack_Souther
Volcanic rock that is intermediate in composition between basalt and andesite
classification is used. Basaltic andesite is then defined as volcanic rock with a silica content of 52–57% and a total alkali content (K2O plus Na2O)
Basaltic_andesite
Spanish island in the North Atlantic
years and have emitted about 1,000 km3 (240 cu mi), mostly of fissural alkali basalt. This cycle continued with the emission of trachytes, phonolites and
Gran_Canaria
Volcanic system in Portugal
During this 1563 eruption, known as the Pico do Sapateiro or Queimado, basalt lava flows reached as far as Ribeira Seca, in the north coast. The second
Picos Volcanic Fissural System
Picos_Volcanic_Fissural_System
Cinder cone in British Columbia, Canada
easternmost Alaska. The dominant rocks compossing these volcanoes are alkali basalts and hawaiites, but nephelinite, basanite and peralkaline phonolite,
Tseax_Cone
Active volcano in Cameroon near the Gulf of Guinea
[citation needed] Mount Cameroon erupts predominantly basanite and alkali basalt, with small amounts of hawaiite, mugearite and camptonite. Xenoliths
Mount_Cameroon
Hawaiian volcano
covered by the oldest exposed rock strata on Mauna Kea, the post-shield alkali basalts of the Hāmākua Volcanics, which erupted between 250,000 and 70–65,000
Mauna_Kea
Volcanic cone in British Columbia, Canada
Pacific plates. Tennena Cone consists mainly of Big Raven Formation alkali basalt that can be mapped into four subdivisions, all of which are exposed
Tennena_Cone
Active volcano in the Democratic Republic of the Congo
the City" Stromboli Online's expedition to Nyiragongo in May, 2005 Alkali Basalt Association of the Continents Google Earth view Mount Nyiragongo tourism
Mount_Nyiragongo
southeastern flanks are composed of younger flows consisting of basalt, alkali basalt, hawaiite, mugearite, and benmoreite from eruptive fissures starting
Geography_of_Easter_Island
Processes of growth and erosion of the volcanoes of the Hawaiian islands
from the summit. The type of lava erupted in this stage of activity is alkali basalt. Due to stretching forces, the development of two or more rift zones
Evolution of Hawaiian volcanoes
Evolution_of_Hawaiian_volcanoes
Geographic region of the Arabian Peninsula
ḥarrāt (حَرَّات, singular: ḥarrah (حَرَّة)), form one of Earth's largest alkali basalt regions, covering some 180,000 km2 (69,000 sq mi), an area greater than
Hejaz
Mountain in British Columbia, Canada
Mount Edziza volcanic complex; each cycle began with the effusion of alkali basalt and culminated with the eruption of lesser volumes of felsic magma.
Ice_Peak
the volcano that is left is the neck; the rest has been eroded. The alkali basalt has a silica (SiO2) volume percentage of 45–55%. The main minerals in
Mader_Stein
Plateau in Iron and Kane counties in Utah, United States
Volcanic rocks erupted on the Markagunt Plateau range from alkali basalt over basalt and basaltic andesite to andesite and latite, and define calc-alkaline
Markagunt_Plateau
African volcanic field
(84 cu mi), additional volcanic rocks are basaltic andesite, hawaiite and tephrite. Basaltic rocks range from alkali basalt to tholeiite. Potassium-argon dating
Gharyan_volcanic_field
Large igneous province in the North Atlantic, centered on Iceland
offshore basalt floods, sills, dykes, and plateaus. Dependent upon various regional locations, the NAIP is made up of MORB (Mid Ocean Ridge Basalt), alkali basalt
North Atlantic Igneous Province
North_Atlantic_Igneous_Province
Geological formation in British Columbia, Canada
the last 20,000 years during the latest magmatic cycle of the MEVC. Alkali basalt and hawaiite are in the form of lava flows and small volcanic cones
Big_Raven_Formation
Pocket of carbon dioxide–rich air that can be lethal
the conditions of ascent, degassing, and extrusion of volatile-rich alkali basalt during the powerful 2002 flank eruption of Mount Etna (Italy)". Journal
Mazuku
Volcanic field in Inyo County, California
The Big Pine volcanic field has erupted basaltic rocks spanning a range of composition from alkali basalt to basanite, as well as one unit of silicic
Big_Pine_volcanic_field
Cinder cone in British Columbia, Canada
easternmost Alaska. The dominant rocks that make up these volcanoes are alkali basalts and hawaiites, but nephelinite, basanite and peralkaline phonolite,
Williams_Cone
Mountain ridge in the country of Canada
well as solifluction deposits. The lowermost rock outcrops are Miocene alkali basalt flows of the Raspberry Formation. Overlying these rocks are Miocene
Cartoona_Ridge
Landform in Yuma County, Arizona
Sentinel-Arlington volcanic field, is a monogenetic volcanic field in Arizona. The basalt is alkali. Sentinel Plain List of volcanoes in the United States of America List
Sentinel_Plain_volcanic_field
Zone (SIVZ), and the older alkaline basalts were alkali olivine and more recent mugearite in composition. The basalts of the southern EVZ on land are rarely
Volcanism_of_Iceland
Rocks on or from the Moon
Mare basalts come in three distinct series in direct relation to their titanium content: high-Ti basalts, low-Ti basalts, and Very Low-Ti (VLT) basalts. Almost
Moon_rock
Volcano on Jan Mayen island
hotspot has been postulated. Beerenberg itself is composed primarily of alkali basaltic lava flows with minor amounts of tephra. Numerous cinder cones have
Beerenberg
High pyroclastic shield volcano in the Sahara
million years ago. During the earliest stage of volcanism on Tibesti, alkali basalts formed large plateaus. Later, the central volcanoes developed on top
Emi_Koussi
its main feature is the volcano. It is formed mostly of alkali basalts, and minorly of basaltic andesite. Many rare minerals are present on the mountain
Alaid_volcano
Volcano in Libya
and is in turn covered by limestone, marl and the Nubian Sandstone. Alkali basalts have been identified in the scoria, and the occurrence of foidite has
Waw_an_Namus
Seamount in the Atlantic Ocean
Seamount. Compositionally, the seamount is formed by alkali basalts and hydrothermally altered basalts containing palagonite and plagioclase with additional
Krylov_Seamount
Province of Cambodia
discovered. The reason for Burmese attraction to the area was due to the alkali basalt volcanic origins of Pailin's Phnom Yat deposit which mirrored that of
Pailin_province
Mountain ridge in the country of Canada
rocks are of Mesozoic or Paleozoic age and are overlain by Miocene alkali basalt flows of the Raspberry Formation. The Raspberry rocks are overlain by
Artifact_Ridge
Desert region in Syria and northern Arabia
lithospheric mantle heterogeneity in the generation of Plio-Pleistocene alkali basalt suites from NW Harrat Ash Shaam (Israel)", Journal of Petrology 47(5):1017–1050
Harrat_al-Sham
Soviet probe
uranium/thorium/potassium ratio of the surface rock, indicating it was similar to alkali basalt. Temperature and pressure sensors - ITD Accelerometer - DOU-1M Cadmium
Venera_8
North American geological structure
and Round Hill, the latter two of which consist of tholeiitic basalt and alkali basalt respectively. A major episode of Tertiary magmatism related to
Canadian_Arctic_Rift_System
Active submarine volcano southeast of Hawaii
volcanoes have steeper sides and a lower level of activity, producing an alkali basalt lava. Continued volcanism is expected to eventually give birth to an
Kamaʻehuakanaloa_Seamount
Geological member in British Columbia, Canada
deposited in the last 1.1 million years. The Tenchen Member consists of alkali basalt and minor hawaiite and picrite. These volcanic rocks are in form of
Tenchen_Member
Chain of volcanoes and related magmatic features in British Columbia, Canada
and pantellerite flows and domes that are interbedded with flows of alkali basalt and hawaiite. Formation of the shield was followed by collapse of a
Anahim_Volcanic_Belt
Elliot, H (2016). "Complex subvolcanic magma plumbing system of an alkali basaltic maar-diatreme volcano (Elie Ness, Fife, Scotland)" (PDF). Lithos. 264:
List of volcanoes in the United Kingdom
List_of_volcanoes_in_the_United_Kingdom
Volcanic formation in Darfur, Sudan
Davidson, Jon P.; Wilson, Ian R. (October 1989). "Evolution of an alkali basalt—trachyte suite from Jebel Marra volcano, Sudan, through assimilation
Deriba_(caldera)
sediments. Basalt is the most common rock type on Madeira and geologists have found a variety of different types including alkali-basalt, basanite and
Geology_of_Madeira
picrite basalt, alkali basalt, trachyandesite and trachyte. Areas have been observed on Bounty showing pillow basalts and giant tubular basalt to tabular/blocky
Pitcairn_hotspot
Series of alkaline magmas produced by igneous differentiation
alkaline magma, either an alkalic picrite basalt or an ankaramite. This evolves to an alkali olivine basalt or basanite. Thereafter the series branches
Alkaline_magma_series
Type of igneous rock
xenoliths in kimberlite pipes and alkali basalts. Partial melting of spinel lherzolite is one of the primary sources of basaltic magma. The name is derived from
Lherzolite
Geological formation in British Columbia, Canada
lower assemblages. The upper assemblage consists of randomly oriented alkali basalt, hawaiite, trachybasalt, tristanite, mugearite, benmoreite and trachyte
Ice_Peak_Formation
Geology of state of Australia
Thirlstane Basalt is above at 38 million years ago, an alkali-olivine basalt. Then the Wesley Vale Sand follows, and the Moriarty Basalt is 50 meters
Geology_of_Tasmania
Extinct volcanic area in South Island, New Zealand
overlapping alkali basaltic monogenetic volcanic field. Excluded from the group are a group of volcanics of different composition (sub-alkaline basalt to basaltic
Dunedin_volcanic_group
System of faults on southeastern Bathurst Island in the Canadian Arctic Archipelago
lesser olivine melilite nephelinites, phonolites and tholeiitic and alkali basalts. List of fault zones Mitchell, Roger H.; Platt, R. Garth (1984). "The
Southeast_Bathurst_Fault_Zone
Volcanic area in South Island, New Zealand
term, the Waiareka-Deborah volcanic group should not be used as any alkali basalt volcanoes in this group and all of those in the former Waiareka volcanic
Waiareka-Deborah volcanic field
Waiareka-Deborah_volcanic_field
Mountain range in Antarctica
the position of the volcanoes. The main volcanic rocks include alkali basalt, basalt, hawaiite and tephrite containing olivine and plagioclase. They
Hudson_Mountains
Indian volcanic igneous province
Rajmahal volcanics are predominantly tholeiitic basalt, quartz tholeiite, olivine tholeiite and alkali basalt. The Intertrappean Beds are composed of sedimentary
Rajmahal_Traps
ALKALI BASALT
ALKALI BASALT
Girl/Female
Muslim
Nights
Girl/Female
Hindu
A musical instrument, The melodious voice of the cuckoo, Chirping of birds
Girl/Female
Greek American Latin
Messenger.
Female
Hawaiian
Hawaiian name ALANI means "orange tree."
Girl/Female
Indian
Homage, Offring with both hands
Boy/Male
Hawaiian
M.
Girl/Female
Swedish
Graceful meadow.
Female
Hindi/Indian
(অঞà§à¦œà¦²à¦¿) Hindi name ANJALI means "offering."
Girl/Female
Indian, Sanskrit
Garlanded with the Salmali Trees
Girl/Female
Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Sanskrit, Sindhi, Tamil, Telugu
Close; Clove
Female
Greek
(Ἀλαλά) Greek name ALALA means "war-like." In mythology, this is the name of the sister of Ares and personification of the war cry. Compare with another form of Alala.
Girl/Female
Native American
Squirrel.
Girl/Female
Indian
Nights
Girl/Female
Indian
Mother
Boy/Male
Arabic
Name of God
Girl/Female
Hindu
A musical instrument, The melodious voice of the cuckoo, Chirping of birds
Boy/Male
Indian
Pure
Girl/Female
Hindu
Clove
Female
Native American
Native American Cherokee name SALALI means "squirrel."
Male
Russian
Variant spelling of Russian Arkadiy, ARKADI means "of Arcadia."
ALKALI BASALT
ALKALI BASALT
ALKALI BASALT
ALKALI BASALT
ALKALI BASALT
ALKALI BASALT
ALKALI BASALT