Synonymer & Oplysninger om | engelsk ord EXTRUSIVE

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Eksempler på brug af EXTRUSIVE i en sætning

• Feldspars crystallize from magma as both intrusive and extrusive igneous rocks and are also present in many types of metamorphic rock.
• Phonolite is an uncommon shallow intrusive or extrusive rock, of intermediate chemical composition between felsic and mafic, with texture ranging from aphanitic (fine-grained) to porphyritic (mixed fine- and coarse-grained).
• Extrusive rock refers to the mode of igneous volcanic rock formation in which hot magma from inside the Earth flows out (extrudes) onto the surface as lava or explodes violently into the atmosphere to fall back as pyroclastics or tuff.
• Both extrusive and intrusive rocks can be porphyritic, meaning all types of igneous rocks can display some degree of porphyritic texture.
• Associated with the latter are Carboniferous extrusive igneous rocks, mainly lavas and tuffs of the Clyde Plateau Volcanic Formation.
• Nyiragongo's lavas are low-silica, alkali-rich, ultramafic extrusive rocks essentially free of feldspars.
• Also present is late Miocene intrusive rock, generally strongly weathered and easily cleaved, as well as some dikes and purple and gray andesitic extrusive rock bodies.
• A number of as-yet uncultivated species have been identified in association with eukaryotic hosts including extrusive explosive ectosymbionts of protists and endosymbionts of nematodes from genus Xiphinema, residing in their gametes.
• This rock is typically of extrusive origin, formed by compaction of fine volcanic ash, and may be found in association with obsidian and rhyolite.
• Flood basalts are the most voluminous of all extrusive igneous rocks, forming enormous deposits of basaltic rock They are a highly distinctive form of intraplate volcanism, set apart from all other forms of volcanism by the huge volumes of lava erupted in geologically short time intervals.
• Specimens of thorite generally come from igneous pegmatites and volcanic extrusive rocks, hydrothermal veins and contact metamorphic rocks.
• The soil consists mostly of igneous rocks acidic extrusive with some moles of basalt, rhyolite and volcanic gap with tuff; in the highest parts the predominant types are: haplic feozem, pelvic vertisol, chernozem and lithosol.
• The Sierra Madre Occidental is a high plateau of volcanic rock that is eroded in areas to reveal a basement composed of plutonic and sedimentary rocks underlying the two groups of extrusive volcanics.
• The core of the structure consists of Proterozoic extrusive and intrusive rocks, the Colbert rhyolite porphyry and the Tishomingo granite (age dated at 1374 Ma), which are overlain by the Arbuckle Group, the Simpson Group, Viola Group, and the Hunton Group.
• It is the extrusive equivalent of those plutonic rocks that are intermediate in composition between monzogranite and granodiorite.
• Zircon age‐spectra for the sandstones of the Wilcox Group reveal a complex grain assemblage derived from Laramide uplifted crystalline blocks of the central and southern Rocky Mountains, the Cordilleran arc of western North America, and arc‐related extrusive and intrusive igneous rocks of northern Mexico.
• The other major rock types are sedimentary, metamorphics, ultrabasic rock complex and the extrusive igneous group that include basalt, andesite, and rhyolite.
• The mountain is a volcanic feature known as a trachyte plug, a volcanic intrusion made of extrusive igneous rocks having alkali feldspar and minor mafic minerals as the main components and a fine-grained, generally porphyritic texture.
• They consist of metamorphosed graywacke, argillite, tuff, mafic igneous extrusive flows, and carbonate rock.
• The SLAAP is a product of Miocene uplift (23–16 Ma) and characterized by Eocene to Pliocene extrusive to intrusive igneous rocks along with sedimentary rocks such as limestone, marl, and chert, and epiclastic arc-derived volcaniclastic units composed of mudstone, sandstone, and conglomerate.
• In the area extending between Gümüşhane and Torul, there are extensive formations consisting of various types of extrusive, igneous rock, including andesitic and basaltic lavas, tuffs and agglomerates.
• Extrusive products include rhyolitic ignimbrites along with basalt, andesite, and rhyolite lava flows.
• The geologic occurrence of iddingsite is limited to extrusive or subvolcanic rocks that are formed by injection of magma near the surface.
• In particular, it has found a niche thriving on deposits of extrusive igneous material, such as the Nealtican malpaís and the Pedregal de San Ángel (Coyoacán, Mexico City).
• A nematocyst is a subcellular structure or organelle containing extrusive filaments found in two families of athecate dinoflagellates (a group of unicellular eukaryotes), the Warnowiaceae and Polykrikaceae.

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