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Volcanic rock
Trachybasalt is a volcanic rock with a composition between trachyte and basalt. It resembles basalt but has a high content of alkali metal oxides. Minerals
Trachybasalt
Trachybasalt – Volcanic rock – A volcanic rock with a composition between basalt and trachyte Hawaiite – Volcanic rock – a sodic type of trachybasalt
List_of_rock_types
Stratovolcano in the Kerguelen Islands
the main island of Grande Terre. The volcano is composed primarily of trachybasalt and was active during the late Pleistocene. Eruptives have been dated
Mont_Ross
Mountain in Tanzania, highest in Africa
formed between 150,000 and 200,000 years ago and erupted picrobasalts, trachybasalts, ankaramites, and basanites. They reach as far as Lake Chala and Taveta
Mount_Kilimanjaro
Series of alkaline magmas produced by igneous differentiation
trachyte or phonolite. The potassic series evolves through trachybasalt or leucite trachybasalt through tristanite or leucite tristanite to potassic trachyte
Alkaline_magma_series
Mountain in the American state of Utah
400,000 yrs Mountain type(s) Volcanic field and cinder cones Rock type Trachybasalt / Tephrite Basanite Andesite / Basaltic andesite Last eruption 27,000
Santa_Clara_Volcano
Naming system for volcanic rocks
mineralogy to decide. Ph (Phonolite) S1 (Trachybasalt)—*Sodic and potassic variants are hawaiite and potassic trachybasalt. S2 (Basaltic trachyandesite)—*Sodic
TAS_classification
Magnesium- and iron-rich extrusive igneous rock
basaltic andesite. Basalt has a lower total content of alkali oxides than trachybasalt and most basanites and tephrites. Basalt generally has a composition
Basalt
Volcanic rock
defined chemically. Under the TAS classification, hawaiite is sodic trachybasalt, with a silica content close to 49 wt%, a total alkali metal oxide content
Hawaiite
Geological formation in British Columbia
Creek Escarpment to the west. The Little Iskut Formation consists of trachybasalt flows and breccia. It ranges in thickness from 90 m (300 ft) on Stewpot
Little_Iskut_Formation
External territory of Australia
Islands are phonolitic. The Heard Island lava series includes basalts, trachybasalts, and basanites, while the McDonald Islands lava series is characterised
Heard Island and McDonald Islands
Heard_Island_and_McDonald_Islands
Volcano in British Columbia, Canada
trachyte domes. Basalt flows and smaller amounts of trachyte, tristanite, trachybasalt, benmoreite and mugearite produced during the second stage, about 1 million
Mount_Edziza
eruptions of highly mobile lava flows. Volcanic rocks such as basalt, trachybasalt, benmoreite, tristanite, mugearite, trachyte and rhyolite were deposited
Volcanism of the Mount Edziza volcanic complex
Volcanism_of_the_Mount_Edziza_volcanic_complex
Geologic region along the East African Rift in Tanzania
including the 2.4-2.2 Ma Lemagarut and 2.25-2.0 Ma Ngorongoro basalt-trachybasalt-trachyandesite volcanoes (Ngorongoro also contains trachydacite) and
Crater_Highlands
Geological formation in British Columbia, Canada
upper assemblage consists of randomly oriented alkali basalt, hawaiite, trachybasalt, tristanite, mugearite, benmoreite and trachyte which are in the form
Ice_Peak_Formation
Caldera volcano west of Naples, Italy
phonolitic trachyte and latite have also been produced, and there is rare trachybasalt. Ash across the Mediterranean region is evidence of a major eruption
Phlegraean_Fields
Cinder cone in British Columbia, Canada
than 800 years old Mountain type Cinder cone Rock type(s) Basanite and trachybasalt Volcanic zone Northern Cordilleran Province Last eruption 1690 ± 150
Tseax_Cone
Volcano and highest mountain in Spain
initially basic and fluid lavas, but they differentiated over time (trachybasalts and phonolites), which gave place to more explosive eruptions. Around
Teide
Fissure vent volcano in western Pakistan
only travelled 8.2 metres, and caused some minor damage. The lava is trachybasalt and basaltic andesite. The eruption was preceded by a 60 km deep earthquake
Tor_Zawar
Stratovolcano in the San Mateo Mountains, North America
primarily of silica-poor (mafic) lava (with 80% by volume), most of which is trachybasalt. Basalt and basanite are present in much smaller amounts. The field straddles
Mount_Taylor_(New_Mexico)
Type of igneous rock
Tachylyte Tephriphonolite Tephrite Tonalite Trachyandesite Benmoreite Trachybasalt Hawaiite Trachyte Troctolite Trondhjemite Tuff Ignimbrite Wehrlite Sedimentary
Teschenite
Deep sea plateau, north of New Zealand
portions of the ridge that now dominate. The ridge surface is mainly trachybasalt and basaltic andesite, with some trachyandesite, and andesite, but no
Three_Kings_Ridge
Volcano on Heard Island
2.1 thousand years respectively. Compounds of basanite, basalt, and trachybasalt make up the majority of the volcano's exposed lavas. Mawson Peak has
Mawson_Peak
Geologic formation in Russia
conglomerates, the upper portion of the formation largely consists of trachybasalt, these deposits have been dated to the Aptian. A thin 20 cm bed is known
Khilok_Formation
Stratovolcano in São Miguel Island
Group, Azores, Portugal Parent range Azores Plateau Geology Mountain type Stratovolcano Rock type(s) Trachyte, Trachybasalt, Basalt Last eruption 1652
Água_de_Pau_Massif
Active stratovolcano on Sumbawa, Indonesia
erupted lava, which descended over steep slopes. Tambora has produced trachybasalt and trachyandesite rocks which are rich in potassium. The volcanics contain
Mount_Tambora
Mountain range in New Mexico, USA
Windmill Member: Maroon volcaniclastic sediments interbedded with flows of trachybasalt to trachyte Rattlesnake Member: plagioclase-bearing basaltic trachyandesite
Sierra_Blanca_(New_Mexico)
Volcano in France
forms a large trachyandesite flow to the east which covers the first trachybasalt flow. In Orcines, this second flow divides into two branches: one reaches
Puy_Pariou
Volcanic complex in British Columbia, Canada
magma. Volcanic rocks of intermediate composition such as benmoreite, trachybasalt, mugearite and tristanite are present in relatively small volumes. They
Mount_Edziza_volcanic_complex
60% by volume). Basic [alkali gabbro (alkali basalt), syeno-gabbro (trachybasalt), gabbro (basalt and dolerite)]. magma Molten rock that sometimes forms
Glossary_of_geology
Volcano in Washington, United States
most recent known eruption was a trachybasalt lava flow dated to 631,000 ± 27,000 years ago called the "Trachybasalt of Pretty Swamp". Most eruptive vents
Simcoe_Mountains
Plateau in British Columbia, Canada
formations comprising the plateau. More evolved volcanic rocks such as trachybasalt, tristanite, mugearite, benmoreite, trachyte and rhyolite largely occur
Big_Raven_Plateau
Mountain in Rwanda and Uganda
lavas. Rock types listed for the Muhavura volcanic area include trachybasalt/tephrite-basanite and trachyandesite/basaltic trachyandesite. Global
Mount_Gahinga
Glacier in British Columbia, Canada
Formation. They consist of trachyte, benmoreite, mugearite, tristanite, trachybasalt and alkali basalt that are in the form of lava flows, lava domes and
Idiji_Glacier
Mountain range
by the complexity of coarse-grained tuffs of basalts and trachybasalts, basalts, trachybasalts, and trachyandesites. The section is crowned with trachytes
Koshkulak_(mountain_range)
Scotland
Fintry Hills Lava Member (basaltic lava) Shelloch Burn Lava Member (trachybasalt) Spout of Ballochleam Lava Member (microporphyritic basalt) Slackgun
Fintry_Hills
Type of ultrapotassic igneous rock
extrusive lamprophyre (sp. minette) might be classified as potassic trachybasalt, shoshonite, or latite using the total alkali-silica diagram (see TAS
Lamprophyre
village of Tarnava. They are formed by andesite, pykrete, basalt and trachybasalt rocks and contain deposits of polymetallic ores. The climate is transitional
Bakadzhitsite
Volcanic field in southwestern United States
minette magma with hydrous mantle rock. Flows and plugs of extrusive trachybasalt in the Chuska and Lukachukai Mountains are chemically equivalent to the
Navajo_volcanic_field
Church in Funchal, Portugal
blocks of volcanic rocks carried from the cliffs at Cabo Girão, namely trachybasalt, trachyandesite, trachyte, tephrite and ashes, lapilli and breccia tuff
Cathedral_of_Funchal
Mountain ridge in the country of Canada
in turn overlain by Pleistocene alkali basalt, hawaiite, tristanite, trachybasalt and mugearite flows and pyroclastic breccia of the Ice Peak Formation
Sorcery_Ridge
Mountain on Ross Island, Antarctica
one trachybasaltic, one trachytic, and two with a mixture of basanite, trachybasalt, phonolite, and trachyte glass shards. Immediately below the summit there
Mount_Terra_Nova
Volcano in Turkey
80,000 ± 20,000 BC Olivine basalts K–Ar dating 100,000 ± 20,000 BC Trachybasalts c. 150,000 BC Comendites K–Ar dating c. 240,000 BC Quartz trachytes
Nemrut_(volcano)
Geological formation in British Columbia, Canada
possibility that the Kounugu Member is older than the Armadillo Formation. Trachybasalt of the 7.2-million-year-old Little Iskut Formation underlies the Nido
Nido_Formation
Mountain in British Columbia, Canada
basaltic lava flows. Lavas of intermediate composition such as tristanite, trachybasalt and mugearite are very limited in extent. The upper stratigraphic unit
Ice_Peak
Massif in British Columbia, Canada
nearly oval-shaped Heart Peaks shield volcano is made of basalt and trachybasalt with a composite thickness up to 430 m (1,410 ft); pyroclastic rocks
Heart_Peaks
Extinct volcanic area in South Island, New Zealand
Range in north Otago is Siberia Hill, with a basanite cap on top of trachybasalt covering a 40 m (130 ft) layer of Eocene to Oligocene sediments above
Dunedin_volcanic_group
Stratovolcano in Chad
been subdivided into several series. The volcano has erupted rhyolite, trachybasalt bordering on trachyandesite, which define a subalkaline/hyperalkaline
Toussidé
Volcanic field in Sudan
an alkali basalt suite although basanite, melabasanite, hawaiite, and trachybasalt have been identified as well. Phenocrysts include clinopyroxene and olivine
Bayuda_volcanic_field
Tribuatary river in the country of Canada
Creek are two poorly exposed, low, northeasterly trending ridges of trachybasalt that may be intrusions linked to the Little Iskut conduit system. List
Artifact_Creek
Mountain ridge in the country of Canada
overlain by quenched, hydrothermally altered and highly fractured Miocene trachybasalt which comprise the lower subaqueous facies of the Little Iskut Formation
Artifact_Ridge
Island in Papua New Guinea
rock types sampled from Ambitle include feldspathoid-bearing basalt, trachybasalt, phonotephrite, trachyandesite, and trachydacite or quartz-trachyte.
Ambitle
Volcanic cone in British Columbia, Canada
assemblage consists of alkali basalt and hawaiite with minor tristanite, trachybasalt and mugearite. These rocks are in the form of pillow lavas, pillow breccias
Tennena_Cone
Civil parish in Azores, Portugal
Matela, zones of older rock (greater than 3 million year), composed of trachybasalt and trachyte that correspond to the formation of the Guilherme Moniz-Cinco
Terra_Chã
Volcano in Chukotka Autonomous Okrug, Russia
contain olivine, ilmenite and magnetite. The rocks of the volcano are of trachybasalt-basalt composition, being a typical continental Asia alkaline series
Aluchin_(volcano)
Caldera in Chile
alluvium. The Paleocene volcanism is characterized by trachyandesite and trachybasalt, which define a potassium-rich calc-alkaline suite. Phenocrysts include
El_Salvador_(caldera)
Extinct volcano in British Columbia, Canada
least four types of lava, namely alkali basalt, hawaiite, trachyte and trachybasalt. These have been studied by scientists since the 1950s. Maitland Volcano
Maitland_Volcano
Monogenetic volcanoes in Argentina
eruptions. The two volcanoes have erupted shoshonitic rocks, consisting of trachybasalt andesite. They contain phenocrysts of clinopyroxene, mica, olivine and
Los_Gemelos-El_Saladillo
Shield volcano in eastern Turkey
(250-200 ka), the first volcanic activity at the location took place with trachybasalts; in phase II (200-150 ka), more volcanic craters and fissures formed
Mount_Tendürek
Volcanic field in Argentina
Laguna has erupted alkaline to sub-alkaline basaltic trachyandesite to trachybasalt with a porphyritic texture. Phenocrysts within the rock include olivine
Antofagasta_de_la_Sierra
Island in Papua New Guinea
26 g/t (0.93 oz/long ton), n=40) that are hosted by high-potassic trachybasalts. The mine is located on a geothermically active area and to enable the
Lihir_Island
Mountain ridge in the country of Canada
Formation is Pleistocene alkali basalt, hawaiite and minor tristanite, trachybasalt and mugearite of the lower assemblage of the Ice Peak Formation which
Idiji_Ridge
Volcano in Argentina
alkali basalts over basalts, trachyandesite, basaltic trachyandesite, trachybasalt and trachyte to rhyolite. They define a calc-alkaline volcanic suite
Payún_Matrú
Volcanic field in Nye County, Nevada
trachyte occurs at two lava domes and basalts, basanite, tephrite, and trachybasalt have been reported as well. In general, the volcanic rocks define an
Lunar_Crater_volcanic_field
Seamount in the Pacific Ocean
alkali basalt, tholeiite and hawaiite, plus ankaramite, phonolite and trachybasalt; as well as zeolites formed by hydrothermal processes. Breccia and sandstones
Ioah_Guyot
Volcanic field in British Columbia, Canada
52.5350°N 124.7983°W / 52.5350; -124.7983 - Eroded cone, lava flows Trachybasalt, trachyandesite, trachyte 1.77 52°23.7′N 124°42′W / 52.3950°N 124.700°W
Satah_Mountain_volcanic_field
Volcanic field in Russia
basaltic, volcanic rocks erupted by the Azas Plateau include basalt and trachybasalt. Other volcanoes in the Baikal Rift Zone have erupted the same rocks
Azas_Plateau
Broad southernmost part of the African continental shelf
) The Alphard Tertiary Igneous Province includes Palaeocene tuffs, trachybasalts, aegirine–augite trachytes and aegirine–augite phonolitic trachytes
Agulhas_Bank
Volcanic field in Jilin Province, China
Craton which underlies the volcanic field. Rocks include basalt and trachybasalt. Olivine basalt, basanite and tholeiite have been found as well, with
Longgang_volcanic_field
Volcano in Far Eastern Russia
reported. The lava flows erupted by the fissure vents are formed by trachybasalt. The rocks become more basic the younger they are. The chemistry of these
Anyuyskiy
Volcanic field in Algeria
has mostly erupted basalt and basanite, with rarer trachyandesite and trachybasalt. Xenoliths include peridotite and pyroxenite, and amphibole and feldspar
Manzaz_volcanic_field
Volcanic field in British Columbia, Canada
124°33.8′W / 52.733°N 124.5633°W / 52.733; -124.5633 - Cinder cone Trachybasalt 2.43 52°43.2′N 124°33.2′W / 52.7200°N 124.5533°W / 52.7200; -124.5533
Baldface Mountain volcanic field
Baldface_Mountain_volcanic_field
Glacier in British Columbia, Canada
Formation. They consist of trachyte, benmoreite, mugearite, tristanite, trachybasalt and alkali basalt that are in the form of lava flows, lava domes and
Tennaya_Glacier
Volcanic complex in British Columbia, Canada
were produced during these stages, namely ankaramites, alkali basalts, trachybasalts, mugearites, hawaiites, phonolites, trachytes and rhyolites. Alkali
Level_Mountain
Chain of volcanoes and related magmatic features in British Columbia, Canada
The volcanic fields consist of lavas that range from basanites and trachybasalts to evolved trachytes and phonolites. They comprise several small volcanoes
Anahim_Volcanic_Belt
within sediments on its southern side. Antilla rocks are compositionally trachybasalts to trachytes. They are porphyritic and contain phenocrysts of amphibole
Antilla_magmatic_complex
Volcanic field in Russia
basanite, foidite, hawaiite, phonolite, tephriphonolite, trachyandesite, trachybasalt. Hyaloclastites are also found, as well as dolerites in the late Miocene
Udokan_Plateau
Geological formation in Argentina
andesites, dacitic and rhyolitic ignimbrites, volcanic breccias, tuffs and trachybasalts. The formation was initially described as Late Eocene to Early Oligocene
Huitrera_Formation
Group of volcanoes in British Columbia, Canada
Assemblage, a sparsely porphyritic plagioclase-augite-olivine basalt and trachybasalt formation, also formed during the fourth eruptive period. It is the remains
Mount_Meager_massif
Volcanic field in Yunnan, China
magma source by subducted clay-rich sediments, which formed the trachybasalts (volcanic rock with a composition between trachyte and basalt). This
Tengchong_volcanic_field
Underwater mountain near the Canary Islands
basanite, hyaloclastite, palagonite, picrite, pumices, basaltic tuffs, trachybasalt and trachyte and define an alkaline ocean island basalt suite although
Tropic_Seamount
Oceanic basin in the south-west Pacific Ocean between Fiji and New Zealand
and one Margot seamount dedged sample are ocean island basalts. Marion trachybasalt was dated at 16.2 ± 0.2 Ma and Matahourua basalt at 15 ± 2 Ma. These
South_Fiji_Basin
Seamount in the Pacific Ocean
hawaiite containing hornblende and plagioclase, oceanite, tholeiite and trachybasalt, while Oma Vlinder has erupted hawaiite. The rocks are undersatured in
Vlinder_Guyot
Chain of seamounts in the Southern Atlantic Ocean
as alkali basalt, basalt, phonolite, tephriphonolite, trachyandesite, trachybasalt and trachyte. Minerals contained in the rocks include alkali feldspar
Discovery_Seamounts
Seamount in the North Atlantic Ocean
benmoreite, phonotephrite and tephrite but also alkali basalt, mugearite and trachybasalt. Samples taken are porphyritic, rich in vesicles and contain phenocrysts
Vesteris_Seamount
Underwater tablemount in the Pacific Ocean
zeolite. The basalts represent an alkaline intraplate suite, earlier trachybasalts containing biotite have been recovered as well. The carbonates occur
Resolution_Guyot
Type of igneous rock
basaltic andesite and andesite, but touch as well the fields of basanite, trachybasalt, basaltic trachyandesite and trachyandesite. The magmatic equivalents
Appinite
Seamount in the Pacific Ocean
clays, hawaiites, limestone, muds, picrites, tholeiites, trachytes and trachybasalt; volcanic rocks contain potassium feldspar and plagioclase. The volcanic
Ita_Mai_Tai
Caldera in Chile
stratovolcanoes formed in the area. Their eruption products are basalt and trachybasalt containing olivine and pyroxene. Magmatic intrusion triggered the formation
Carrizalillo_(caldera)
Landform of Sydney
Pyroxene Rhombohedra Quartz Rhyolite Siderite Smectite group Syenite Trachybasalt Trachyandesite Trachyte Tuff The area of Prospect Reservoir is an area
Prospect_dolerite_intrusion
Geologic formation in Canada
000 years ago when porphyritic plagioclase-augite-olivine basalt and trachybasalt was erupted in valleys and on mountain ridges. These volcanic rocks form
Mosaic_Assemblage
Volcanic field in Mongolia
have a vegetation cover. Volcanic activity began 12.5 ± 1.0 mya, with trachybasalts erupting along the Hanui river. Later two unnamed cones less than 20
Khanuy-Gol
018; -2.873 Bangley Quarry 3.92 hectares 4 February 1991 The site has a trachybasalt dyke that cuts vertically through the lava sequence and has large (up
List of Sites of Special Scientific Interest in Mid and East Lothian
List_of_Sites_of_Special_Scientific_Interest_in_Mid_and_East_Lothian
Offshore marine conservation area south of Cape Agulhas in South Africa
Africa. The Alphard Tertiary Igneous Province includes Palaeocene tuffs, trachybasalts, aegirine–augite trachytes and aegirine–augite phonolitic trachytes
Agulhas Bank Complex Marine Protected Area
Agulhas_Bank_Complex_Marine_Protected_Area
Volcanic field in Tibet
volcanic rock and other rocks include leucite, phonolithic tephrite, trachybasalt and trachyte. Paleogene rocks and Quaternary river sediments underlie
Heishibeihu
Volcanic field in Argentina
basalt as eruption products. Crater Basalt basalts include basanite and trachybasalts. Incompatible elements and rare-earth elements are enriched in these
Crater_Basalt_volcanic_field
Volcanic field in Death Valley of California
Rämö, O. Tapani; Champion, D.E. (2016). Petrology and Origin of 2.1 Ka Trachybasalt at Ubehebe Craters, Death Valley, Ca. 112th Annual Meeting. Geological
Ubehebe_Craters
Mountain massif in Russia
parasitic plug are also noted. The eastern slopes consist of flows of trachybasalts and trachytes interlayered with clastoplavas and vitrocrystalline tuffs
Titovskaya_Sopka
Mountain range in south central Doña Ana County, New Mexico, United States
potassium) and ranged in composition from basanite through alkali basalt to trachybasalt. The rocks in the surrounding area are extremely diverse, with exposed
West_Potrillo_Mountains
Volcanic field in Mongolia
Shava, Shute, Tsagan and Zala. Augitite, potassic limburgite, pyroxene trachybasalts and trachyte–andesite are found in the Pliocene layers. Potassic basanite
Taryatu-Chulutu
TRACHYBASALT
TRACHYBASALT
TRACHYBASALT
TRACHYBASALT
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A Desire
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First among all
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TRACHYBASALT
TRACHYBASALT
TRACHYBASALT
TRACHYBASALT
TRACHYBASALT