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Longer titles found: Glomeroporphyritic (view)

searching for Porphyritic 124 found (358 total)

alternate case: porphyritic

Geology of Macau (159 words) [view diff] exact match in snippet view article find links to article

Taipa and the Macau Peninsula. Other rock groups include porphyritic biotite granite, non-porphyritic garnet-bearing biotite granites and smaller occurrences
Parga Formation (200 words) [view diff] exact match in snippet view article find links to article
unconformity by Pliocene or Quaternary sediments. The formation is intruded by porphyritic trachyte of Oligocene to Miocene age (Ancud Volcanic Complex). The outcrops
Rainmaker Mountain (457 words) [view diff] exact match in snippet view article find links to article
mafic minerals as the main components and a fine-grained, generally porphyritic texture. A closeup of the mountain is visible up Rainmaker Pass. Rainmaker
Abajo Mountains (258 words) [view diff] exact match in snippet view article find links to article
emplaced at depths of a few kilometers. The predominant igneous rock is porphyritic hornblende diorite. Ages of intrusion in the Abajo Mountains fall in
Dedham Granite (883 words) [view diff] exact match in snippet view article find links to article
granite is a light grayish-pink to greenish-gray, equigranular to slightly porphyritic, variably altered, granite south and west of Boston, named for the town
Watts Point volcanic centre (328 words) [view diff] exact match in snippet view article find links to article
likely a subglacial mound. It comprises a continuous mass of sparsely porphyritic highly jointed dacitic lava overlying the mid-Cretaceous Coast Plutonic
Porphyry copper deposit (2,801 words) [view diff] exact match in snippet view article find links to article
itself. Predating or associated with those fluids are vertical dikes of porphyritic intrusive rocks from which this deposit type derives its name. In later
Luxullianite (125 words) [view diff] exact match in snippet view article find links to article
Luxullianite (also known as luxulyanite or luxulianite) is a rare type of porphyritic granite, notable for the presence of clusters of radially-arranged acicular
Hohennagold Castle (350 words) [view diff] exact match in snippet view article find links to article
the Black Forest town of Nagold. The hill consists predominantly of porphyritic rock. The ruins represent a relatively well-preserved 12th-century castle
Fichtel Mountains (3,271 words) [view diff] exact match in snippet view article find links to article
Porphyritic Granite; it forms the basement of the Pechbrunn basalt region and surfaces there at various places between the basalt nappes; porphyritic
Chullcani (419 words) [view diff] exact match in snippet view article find links to article
Miocene with the cryptodome Ch'ankha Muqu. This lava dome is formed by porphyritic andesite and has dimensions of 100 by 500 metres (330 ft × 1,640 ft)
Georges de Tribolet (468 words) [view diff] exact match in snippet view article find links to article
received his PhD from the University of Heidelberg with a dissertation on porphyritic rocks. Following graduation, he furthered his education in Paris and
Buchberg (Fichtel Mountains) (151 words) [view diff] exact match in snippet view article
in the Bavarian Fichtel Mountains. The mountain, which is formed from porphyritic granite, lies south of the village of Reicholdsgrün, in the borough of
Racha Range (230 words) [view diff] exact match in snippet view article find links to article
(1218 m) and other. Its eastern part composed mainly jurassic slates and porphyritic series, and west side cretaceous limestone. Its north side located Shaori
Arkenu structures (662 words) [view diff] exact match in snippet view article find links to article
observations, it was concluded that the Arkenu structures are stocks of porphyritic syenitic that have intruded the Nubia Formation to form rather simple
List of mineral tests (610 words) [view diff] exact match in snippet view article find links to article
in XPL in microscope. Zoning Mineral zoning present. Mineral texture Porphyritic (large xenocryst surrounded by fine crystals), Melange (mix of minerals)
Keung Shan (234 words) [view diff] exact match in snippet view article find links to article
506 ft) above sea level. Keung Shan is formed by volcanic rocks, including porphyritic rhyolites, similar to nearby Lantau Peak and Sunset Peak. The Lantau
Newbury Volcanic Complex (1,131 words) [view diff] no match in snippet view article find links to article
The Newbury Volcanic Complex, also known as the Newbury Formation or the Newbury Volcanics, is a 16 km long, 3 km wide strip of volcanic materials and
Loriu Plateau (441 words) [view diff] exact match in snippet view article find links to article
contain olivine and pyroxene phenocrysts. To the west are a few mafic porphyritic basalts and possibly older Miocene basalts cut by dykes and faults. Olivine
Cerro Carnerero Formation (288 words) [view diff] exact match in snippet view article find links to article
with Harpoceras subplanatum, and below the Middle to Upper Jurassic Porphyritic Series. Called the "Cerro Carnerero" beds, Rauhut, 2008, assigned the
Geology of Jersey (2,721 words) [view diff] exact match in snippet view article find links to article
includes some basalt and pyroclastic fallout such as tuff and agglomerate. Porphyritic andesite is dark grey with white crystals of plagioclase feldspar embedded
Skurugata (330 words) [view diff] exact match in snippet view article find links to article
spread across its bottom consist largely of grey-brown and dark-brown porphyritic rock with elements of quartz and red feldspar. Several species of moss
Gough Glacier (653 words) [view diff] exact match in snippet view article find links to article
to the east. The area around the glacier has late granodiorites and porphyritic adamellites. Pretectonic intrusives have been found on the western side
Leucitite (1,393 words) [view diff] exact match in snippet view article find links to article
addition. The leucite is often present in two sets of crystals, both porphyritic and as an ingredient of the ground mass. It is always idiomorphic with
Alvão Natural Park (1,395 words) [view diff] exact match in snippet view article find links to article
granite around Lamas de Olo. This stone is commonly rough, biotitic, porphyritic granite, but there are pockets of medium, white igneous and medium-to-fine
Glass House Mountains National Park (2,402 words) [view diff] exact match in snippet view article find links to article
brevipalmata. Mount Miketeebumulgrai (202 metres (663 ft)) is composed of porphyritic trachyte and provides feeding and nesting places for the black cockatoo
Petersberg, Halle (600 words) [view diff] exact match in snippet view article find links to article
highest point of the Halle Porphyry complex. It was formed, like the other porphyritic domes in the surrounding area, during the Upper Carboniferous and Lower
M. Radhakrishna Pillai (scientist) (1,436 words) [view diff] exact match in snippet view article
plant extracts for which patent is pending. He holds a patent for Novel porphyritic derivatives for photo dynamic therapy (PDT): A process for the preparation
List of rock types (2,218 words) [view diff] exact match in snippet view article find links to article
basaltic trachyandesite Basanite – Type of volcanic rock Blairmorite – Rare porphyritic volcanic rock Boninite – Ultramafic extrusive rock high in both magnesium
Chivinar (599 words) [view diff] exact match in snippet view article find links to article
rhyolites contain rutile and secondary silicates in veins. All products are porphyritic, including the late andesites which contain phenocrysts of hornblende
Bombo Headland Quarry Geological Site (961 words) [view diff] exact match in snippet view article find links to article
the sandstone dips below sea level and is overlain by about 20m of porphyritic basalt, termed Bombo Latite member. The contact between the two units
Southern Black Forest (522 words) [view diff] exact match in snippet view article find links to article
metres. Gneiss is the predominant rock with a few granite intrusions. Porphyritic matrices occasionally occur in the rock formations. Unlike the Northern
Henhull (741 words) [view diff] exact match in snippet view article find links to article
believed to originate from Cumbria. The name is thought to derive from blue porphyritic crystals, which are no longer visible. A local legend suggests that the
Seigler Mountain (391 words) [view diff] exact match in snippet view article find links to article
with an unusual complex of wetlands that feeds Cole Creek. Flows of porphyritic lavas from Mount Hannah and Seigler Mountain cover about 7 square miles
Ring of Gullion (2,893 words) [view diff] exact match in snippet view article find links to article
was able to intrude. The ring dyke is composite with both porphyritic granophyre and porphyritic felsite components. The composition of the remainder of
Bau, Sarawak (1,449 words) [view diff] exact match in snippet view article find links to article
in breccias having magno-calcite quartz veining; and occasionally as porphyritic skarns. The limestone cliffs in the area support a wide range of endemic
Kalkajaka National Park (824 words) [view diff] exact match in snippet view article find links to article
Granodiorite which is predominantly a white to grey, medium-grained, porphyritic biotite monzogranite to granodiorite. The age of the intrusive is Late
Ilgachuz Range (1,158 words) [view diff] exact match in snippet view article find links to article
subcircular talus mounds of plate sized pieces of light to dark grey, slightly porphyritic, flowbanded rhyolite with minor obsidian. Massive to banded chalcedony
Great Scott (lunar sample) (354 words) [view diff] exact match in snippet view article
Scott is the second largest. Lunar sample 15555 is a coarse-grained, porphyritic rock with rounded olivine phenocrysts (1 mm) and subhedral zoned pyroxene
Charnockite (1,053 words) [view diff] exact match in snippet view article find links to article
'charnockitic monzonite' and 'charnockitic tonalite' respectively. Charnockite (porphyritic quartz mangerite), sold as "Nara Brown Granite", quarried in southern
Cerros Negros de Jama (573 words) [view diff] exact match in snippet view article find links to article
with a fault system in the ground. The lavas and associated dykes have porphyritic appearance and variable morphology. The lavas show no evidence of ponding
Verd antique (982 words) [view diff] exact match in snippet view article find links to article
exceeded only in value by Synnadic or Docimaean marble from Docimium, porphyritic green lapis Lacedaemonius from Laconia, and imperial porphyry from Mons
Lantau Peak (438 words) [view diff] exact match in snippet view article find links to article
(心經簡林) can be found. Lantau Peak is formed by Volcanic rocks, including porphyritic rhyolites, like many of the tallest mountains in Hong Kong, such as Tai
Bruce, Australian Capital Territory (803 words) [view diff] exact match in snippet view article find links to article
Canberra and the Calvary Hospital. Glebe Farm Adamellite is a coarse porphyritic micro adamellite of the Silurian age. It intrudes in the west north and
Geology of Zambia (962 words) [view diff] exact match in snippet view article find links to article
lamprophyre, norite, pegmatite and other igneous rock types. A rhyolite porphyritic belt, formed at the same time as the Muva Supergroup extends along the
Gawler Ranges (993 words) [view diff] exact match in snippet view article find links to article
a stacked pancake-like morphology which cooled rapidly resulting in porphyritic textures and widespread columnar jointing. The ranges are a small part
Lilesville, North Carolina (543 words) [view diff] exact match in snippet view article find links to article
(2.6 km2), all land. Lilesville is home to the Lilesville Granite, a porphyritic igneous rock named for the town. As of the census of 2000, there were
Mont Chaberton (724 words) [view diff] exact match in snippet view article find links to article
are outcrops of mica schist with quartz, crystalline limestones and porphyritic rocks. "Mont Chaberton". Peakbagger.com. Retrieved 2014-01-01. Géoportail
Four Crowned Martyrs (1,820 words) [view diff] exact match in snippet view article find links to article
the martyrs' passio to porphyry quarrying and masonry located at the 'porphyritic mountain' indicate that the story's setting is misplaced; there are no
Isluga (1,619 words) [view diff] exact match in snippet view article find links to article
in composition with SiO2 contents between 56-61%. The andesites are porphyritic with more than half phenocrysts and high potassium content (2.7-3.6%)
Mount Pico de Loro (572 words) [view diff] exact match in snippet view article find links to article
vesicular and amygdaloidal, with flow banding. Additionally, fine-grained, porphyritic, and medium-grained equigranular phases are included. Intercalated with
Glass House Mountains (1,252 words) [view diff] exact match in snippet view article find links to article
medium-to-shallow depths within the crust and has intermediate grain size, and often porphyritic texture between that of volcanic and plutonic rocks.[citation needed]
Setouchi Volcanic Belt (49 words) [view diff] exact match in snippet view article find links to article
Belt (瀬戸内火山帯) (SVB) is a Miocene volcanic belt in southwestern Japan. Porphyritic Magnesian Andesites in the Setouchi Volcanic Belt Retrieved on 2007-07-08
Royal Society Range (1,892 words) [view diff] exact match in snippet view article find links to article
than 4 kilometers long. The composition, with very few exceptions, is porphyritic basanite with primarily olivine and clinopyroxene phenocrysts, though
Micromyrtus grandis (543 words) [view diff] exact match in snippet view article find links to article
Micromyrtus grandis in 1996, after coming across a colony of Micromyrtus on a porphyritic ridge that did not correspond to any known species. The description was
Swinside (1,470 words) [view diff] exact match in snippet view article find links to article
southern England. The stones used in the construction of Swinside were porphyritic slate collected from the adjacent fells, and are of the type that was
Joseph Carne (940 words) [view diff] exact match in snippet view article find links to article
the granitic veins of St Michael's Mount, and the vein-like lines of porphyritic rocks provincially termed elvans. In 1816 and 1818 Carne communicated
Mole Hill (Virginia) (402 words) [view diff] exact match in snippet view article
"dark greenish gray to grayish black, medium grained, and moderately porphyritic. It is an olivine-spinel basalt with abundant large pale green pyroxene
Epipterygium opararense (711 words) [view diff] exact match in snippet view article find links to article
Metrosideros diffusa rootlets in one locality on overhanging surface of coarse porphyritic potassic granite boulders and on moist humus around one of the Ōpārara
Glacial erratic (3,378 words) [view diff] exact match in snippet view article find links to article
an important symbol in American history. Rollstone Boulder, a 110-ton porphyritic granite boulder that was originally located at the summit of Rollstone
Niuatahi (936 words) [view diff] exact match in snippet view article find links to article
Niuatahi volcano revealed that the products were composed of aphyric to porphyritic with low-K dacite that consists of mostly glassy material. Meanwhile
Monzogranite (1,288 words) [view diff] exact match in snippet view article find links to article
monzogranites belong to the syn-F3 biotite granitoid group. They present a porphyritic texture (potassium feldspar megacrysts) and mafic microgranular enclaves
Porongurup National Park (1,580 words) [view diff] exact match in snippet view article find links to article
Porongurup Range is 15 kilometres (9.3 mi) from east to west and consists of porphyritic granite peaks levelled into domes. The range is the remnant of a sizeable
Henrietta Island (1,312 words) [view diff] exact match in snippet view article find links to article
strata have been intruded by numerous sills and dikes of basalt and porphyritic diorite. American explorer and US Navy lieutenant commander George W
Micrometeorite (4,553 words) [view diff] exact match in snippet view article find links to article
Coarse-grained Unmelted; c) Scoriaceous; d) Relict-grain Bearing; e) Porphyritic; f) Barred olivine; g) Cryptocrystalline; h) Glass; i) CAT; j) G-type;
Beerburrum, Queensland (2,311 words) [view diff] exact match in snippet view article find links to article
which rises to 280 metres (920 ft) above sea level. It is composed of porphyritic trachyte. The mountain has complex rainforest, with some endangered plant
Oracle, Arizona (1,705 words) [view diff] exact match in snippet view article find links to article
grey-and-white speckled "boulders" rising over the scrub and grass. It is mostly porphyritic biotite Precambrian granite with large microcline phenocrysts, and has
Kafue National Park (1,729 words) [view diff] exact match in snippet view article find links to article
is generally flat or gently undulating apart from some small, steep porphyritic granite hills between Chonga and Ngoma and occasional sandstone and granite
Sugarloaf Mountain and Urca Hill Natural Monument (564 words) [view diff] exact match in snippet view article find links to article
Sugar Loaf. The augen gneiss represents a deformed and recrystallized porphyritic granite that intruded into the kinzigite. These metasedimentary rocks
San Nicolas Island (2,191 words) [view diff] exact match in snippet view article find links to article
on San Nicolas Island was largely limited to metavolcanic (including porphyritic metavolcanic) and metasedimentary (mainly quartzite) rock. The metavolcanics
Glossary of geology (10,308 words) [view diff] exact match in snippet view article find links to article
Earth's crust bordered by parallel faults. granite A coarse-grained, often porphyritic, intrusive, felsic, igneous rock containing megascopic quartz, averaging
Frederick William I of Prussia (2,606 words) [view diff] exact match in snippet view article find links to article
His violent, harsh nature was further exacerbated by his inherited porphyritic disease, which gave him gout, obesity and frequent crippling stomach
Porphyria cutanea tarda (3,468 words) [view diff] exact match in snippet view article find links to article
Porphyria cutanea tarda (PCT) is recognized as the most prevalent subtype of porphyritic diseases. PCT is characterized by onycholysis and blistering of the skin
Aiguilles Marbrées (506 words) [view diff] exact match in snippet view article find links to article
consists mostly of medium to coarse grained granites, together with some porphyritic rocks. A series of major rock falls occurred on the north side of the
Mount Kilimanjaro (9,022 words) [view diff] exact match in snippet view article find links to article
obsidian horizons", of the Lent group, dated to 359,000–337,000 years ago Porphyritic tephriphonolite to phonolite lavas of the Caldera Rim group, dated to
Peninsular Gneiss (1,187 words) [view diff] exact match in snippet view article find links to article
grey biotite gneiss during migmatization was first intruded by grey porphyritic granite and later by pink granites. Pegamatities of several generations
Central Atlantic magmatic province (2,701 words) [view diff] exact match in snippet view article find links to article
over 80% of preserved lava volume); a trend going from intersertal to porphyritic texture; a progressive depletion of incompatible element contents in
Fairbanks mining district (550 words) [view diff] exact match in snippet view article find links to article
Fairbanks in the Fairbanks mining district. Gold occurs in a Cretaceous porphyritic granodiorite pluton as finely-distributed particles in and on the edges
Seret (Dogu'a Tembien) (1,784 words) [view diff] exact match in snippet view article
Rock sample of extremely porphyritic lower basalt, collected at May Shih
Buan County (1,519 words) [view diff] exact match in snippet view article find links to article
Uibok-ri, Gyehwa-myeon, small-scale biotite gneiss is captured within a porphyritic granite body. Precambrian gneisses are distributed on a small scale in
Blackbird (violin) (843 words) [view diff] exact match in snippet view article
whole violin. Therefore, the back plate was made of another stone, a porphyritic diabase, about 1.9 billion years old, from the province of Härjedalen
Pavagadh Hill (1,460 words) [view diff] exact match in snippet view article find links to article
formations of Pavagadh Hill is stated as being "rhyolite, green bedded tuffs, porphyritic basalt, olivine dolerite and nonporphyritic alkaline basalt." There are
Kugruk River (1,050 words) [view diff] exact match in snippet view article find links to article
large intrusions of greenstone. The greenstone is schistose, but has a porphyritic texture, the phenocrysts being hornblende, while the groundmass is made
Musgrave Block (1,412 words) [view diff] exact match in snippet view article find links to article
is in two parts, an overlying volcanic edifice composed primarily of porphyritic rhyolite and dacite with occasional vent complex agglomerates, which
Fitchburg, Massachusetts (4,710 words) [view diff] exact match in snippet view article find links to article
Greek, and Roman art. The Rollstone Boulder is a 110-ton specimen of porphyritic granite located in a small triangular public park. The boulder was a
Yilgarn Craton (3,249 words) [view diff] exact match in snippet view article find links to article
banded iron formation and other exotics, intruded by minor masses of porphyritic granite. Detrital zircons in the Jimperding Gneiss Complex range in age
Bridge River Vent (2,195 words) [view diff] exact match in snippet view article find links to article
50% of the breccia consists of thick black glassy angular blocks of porphyritic lava, some of which are flow banded. The breccia grains range in size
St Peter and Paul's Old Cathedral (3,462 words) [view diff] exact match in snippet view article find links to article
stone but none are of such scale and stature. Other churches have used porphyritic stone in varying quantities but no other green examples are known. The
Geochemistry (7,050 words) [view diff] exact match in snippet view article find links to article
connection, we may repeat what has been said above about the corrosion of porphyritic minerals in igneous rocks. In rhyolites and trachytes, early crystals
Apollo 15 operations on the Lunar surface (5,294 words) [view diff] exact match in snippet view article find links to article
they had parked the Rover. Most were breccias, but they did find one porphyritic basalt. Scott decided to move down to a 40 ft (12 m) crater, which was
Acamarachi (1,755 words) [view diff] exact match in snippet view article find links to article
underwater dive. Acamarachi is constructed by andesite and dacite. Rocks are porphyritic and contain hornblende as well as biotite or pyroxene. Augite, hypersthene
Twentieth Indian Expedition to Antarctica (1,122 words) [view diff] exact match in snippet view article find links to article
India, in the Muhlig-Hoffmannfjell area revealed very coarse-grained porphyritic granite and charnockite. A nunatak east of Muhlig-Hoffmannfjell depicts
Sadiya (3,319 words) [view diff] exact match in snippet view article find links to article
in girth, along with the blocks of the projecting wall, were reddish porphyritic granite of an adamantine hardness. There was another stone gateway at
Nininger Meteorite Award (118 words) [view diff] exact match in snippet view article find links to article
Poikilitic Lithic Fragment in the Bovedy L3 Chondrite from the Impact-Melted Porphyritic Chondrules 1979-1980 Steven B. Simon Petrography, Bulk Chemistry and
Ollagüe (7,556 words) [view diff] exact match in snippet view article find links to article
surface of Vinta Loma lava flows. The texture of the lavas ranges from porphyritic to seriate. Two-pyroxene andesite is the dominant component but dacite
Narryer Gneiss Terrane (1,184 words) [view diff] exact match in snippet view article find links to article
veins. Most is strongly deformed, but least-deformed areas show a relict porphyritic to equigranular texture. The Manfred Complex is a heavily attenuated
Pitinga mine (1,296 words) [view diff] exact match in snippet view article find links to article
granite and the Madeira niobium-tantalum-tin deposit. The coarse-grained porphyritic albite granite has intruding paleoproterozoic acid volcanic and pyroclastic
Khuldabad (3,425 words) [view diff] exact match in snippet view article find links to article
garden, and the tombs of his relations are on the western side. A red porphyritic trap, and a cement of the same colour, have been used in the buildings
Shahsavaran (volcanic field) (1,022 words) [view diff] exact match in snippet view article
The dacites are found in the eastern part of the field. The rocks are porphyritic and follow the calc-alkaline trend, except the basalts which are of the
Christmas Mountains caldera complex (741 words) [view diff] exact match in snippet view article find links to article
on the crest of the dome. The later eruptions were more alkaline and porphyritic that the earlier eruptions. The caldera is characterized by an unusual
South Fiji Basin (1,553 words) [view diff] exact match in snippet view article find links to article
al. 2007, Section:5.2.1. Less porphyritic (ocean island) basalts Mortimer et al. 2007, Section:5.2.2. More porphyritic (potassic) lavas "Seismotectonics
Acton, Cheshire (5,151 words) [view diff] exact match in snippet view article find links to article
believed to originate from Cumbria. The name is thought to derive from blue porphyritic crystals, which are no longer visible. A local legend suggests that the
Canadian Cascade Arc (7,437 words) [view diff] exact match in snippet view article find links to article
coarse-grained quartz monzonite and a younger inner stock of finer-grained and porphyritic quartz monzonite. The pluton covers an area of 60 km2 (23 sq mi). After
Taftan (volcano) (4,222 words) [view diff] exact match in snippet view article
the surrounding ignimbrite and fumarole gases. The lavas of Taftan are porphyritic. Mineral components include biotite, clinopyroxene, hornblende, orthopyroxene
Cornubian batholith (4,397 words) [view diff] exact match in snippet view article find links to article
– Cligga G2 Granite with sheeted W greisen veins. D – Coarse-grained porphyritic G3a granite with abundant orthoclase phenocrysts (> 25 mm) from the Dartmoor
Widgiemooltha Komatiite (2,192 words) [view diff] exact match in snippet view article find links to article
grained in the main, often equigranular and holocrystalline although porphyritic areas are known and chilled margins and occasional compositional variations
Crough Seamount (1,554 words) [view diff] exact match in snippet view article find links to article
cubic kilometres (140 cu mi). Dredging has yielded both vesicular and porphyritic basalt. Phenocrysts identified include clinopyroxene, olivine and plagioclase
I-type granite (1,374 words) [view diff] exact match in snippet view article find links to article
size from aphanitic to phaneritic; crystal size distributions include porphyritic, seriate, and rarely equigranular textures. Like other granites, phenocrysts
Rao Jodha Desert Rock Park (970 words) [view diff] exact match in snippet view article find links to article
intermediate crystal sizes and from fine textured tuff to large-grained (porphyritic) rhyolite. The park has around 250 species of native plants, including
River Coquet (4,992 words) [view diff] exact match in snippet view article find links to article
can be roughly translated to 'Red River', perhaps reflecting the red porphyritic pebbles found here in large numbers. Alternatively, a recent emerging
Geology of the Australian Capital Territory (6,461 words) [view diff] exact match in snippet view article find links to article
Lyons. It intrudes Deakin Volcanics. Glebe Farm Adamellite A coarse porphyritic micro-adamellite was intruded sometime from late Silurian to early Devonian
2010 Mount Meager landslide (2,148 words) [view diff] exact match in snippet view article find links to article
largest in Canadian history. The landslide consisted mainly of intrusive porphyritic rhyodacite, lava flows and breccia derived from the Capricorn and Plinth
Yocum Falls (Clackamas County, Oregon) (507 words) [view diff] exact match in snippet view article
Pleistocene or Pliocene origin with andesite originating from moderately porphyritic pyroxene lava flows. Further towards Mirror Lake the andesite is basaltic
Polvadera Group (2,513 words) [view diff] exact match in snippet view article find links to article
Rechuelos Rhyolite (sensu stricto) is 2.23 +0.15 Ma old and is sparsely porphyritic rhyolite glass; and the Young Rhyolite is 1.19 + 0.01 Ma old and has
Cincinnati Union Terminal (9,661 words) [view diff] exact match in snippet view article find links to article
American Art Deco architecture at the time. The fountain utilizes pink porphyritic granite. The side and rear walls of the building utilize light buff brick
Walga Rock (2,029 words) [view diff] exact match in snippet view article find links to article
Geology Mountain type Granite whaleback: 46  Type of rock K-feldspar porphyritic monzogranite: 46  Western Australia Heritage Register Official name Walga
Portraits of Benvenuto Cellini (2,497 words) [view diff] exact match in snippet view article find links to article
moment of Benvenuto death. Plon claims that "several portraits made on porphyritic stone are kept in the Pitti Gallery" and that "all of them date back
Saxon milepost (3,184 words) [view diff] exact match in snippet view article find links to article
Lusatian granite in eastern Saxony. In the Chemnitz area, Hilbersdorf porphyritic tuff quarried at Hilbersdorf and Flöha was used as a milepost material
Temagami Greenstone Belt (7,670 words) [view diff] exact match in snippet view article find links to article
Sherman Mine railroad west of the former Milne sawmill lumber yard is a porphyritic body composed of quartz-feldspar. It is unknown if this igneous rock
Dougal Jerram (1,768 words) [view diff] exact match in snippet view article find links to article
in three dimensions: insights from the 3D reconstruction of a highly porphyritic rock texture Journal of Petrology 46: 1525–1541. (IF 3.283). Richard
Pebble Mine (10,817 words) [view diff] exact match in snippet view article find links to article
operation to economically recover it. The Pebble deposit is hosted in porphyritic granodiorite to tonalite of Upper Cretaceous age intruded into deformed
Gold mining in Alaska (8,864 words) [view diff] exact match in snippet view article find links to article
third of the districts production came from Ganes Creek. Gold-bearing porphyritic intrusive rocks adjacent to the Ganes Creek and Colorado Creek placers
Kaba meteorite (1,838 words) [view diff] exact match in snippet view article find links to article
alteration also underwent such a transformation. Here, we see the olive crystals of a porphyritic chondrule as the aqueous alteration forms a weathering rim.
Magmatism along strike-slip faults (4,846 words) [view diff] exact match in snippet view article find links to article
formation. Magma is thought to be depleted mid-ocean ridge basalts and porphyritic basalt magmas formed via partial-melting and melt extraction of the mantle