Lecture W12-W13-L28
... How significant? Intraplate activity is typically discontinuous, so it is difficult to integrate on a long time period and assess its importance. 1-10% of the long-term magma flux? Intraplate magmas are mostly linked to deep mantle “plumes”: localized zones of periodites ascent that melts near the s ...
... How significant? Intraplate activity is typically discontinuous, so it is difficult to integrate on a long time period and assess its importance. 1-10% of the long-term magma flux? Intraplate magmas are mostly linked to deep mantle “plumes”: localized zones of periodites ascent that melts near the s ...
File
... dyke/dike; C = laccolith; D = pegmatite; E = sill; F = stratovolcano; processes: 1 = newer intrusion cutting through older one; 2 = xenolith or roof pendant; 3 = contact metamorphism; 4 = uplift due to laccolith emplacement. ...
... dyke/dike; C = laccolith; D = pegmatite; E = sill; F = stratovolcano; processes: 1 = newer intrusion cutting through older one; 2 = xenolith or roof pendant; 3 = contact metamorphism; 4 = uplift due to laccolith emplacement. ...
Geological Cycle Rock Formation
... dyke/dike; C = laccolith; D = pegmatite; E = sill; F = stratovolcano; processes: 1 = newer intrusion cutting through older one; 2 = xenolith or roof pendant; 3 = contact metamorphism; 4 = uplift due to laccolith emplacement. ...
... dyke/dike; C = laccolith; D = pegmatite; E = sill; F = stratovolcano; processes: 1 = newer intrusion cutting through older one; 2 = xenolith or roof pendant; 3 = contact metamorphism; 4 = uplift due to laccolith emplacement. ...
rock
... composition of the liquid portion of the magma continually changes »Composition changes due to removal of elements by earlier-forming minerals »The silica component of the melt ...
... composition of the liquid portion of the magma continually changes »Composition changes due to removal of elements by earlier-forming minerals »The silica component of the melt ...
introduction
... region reveals a trace element diagram much like that seen in Figure 1 which has already been shown to be a subduction zone along a continental arc. Like the samples taken from the Misty Mountains, minerals concentrations tend to be hydrous (hornblende, biotite and muscovite) and to contain abundant ...
... region reveals a trace element diagram much like that seen in Figure 1 which has already been shown to be a subduction zone along a continental arc. Like the samples taken from the Misty Mountains, minerals concentrations tend to be hydrous (hornblende, biotite and muscovite) and to contain abundant ...
igneous rocks - Te reo Māori
... EXTRUSIVE or VOLCANIC IGNEOUS ROCKS. Some of the more common types of extrusive igneous rocks are lava rocks, cinders, pumice, obsidian, and volcanic ash and dust. ...
... EXTRUSIVE or VOLCANIC IGNEOUS ROCKS. Some of the more common types of extrusive igneous rocks are lava rocks, cinders, pumice, obsidian, and volcanic ash and dust. ...
The 2.69 GA Paringa basalts: Crustal recycling into the
... are compositionally distinct from Mg-rich continental flood basalts that feature greater contents of Ti, and other incompatible elements, with fractionated HREE, or boninites, picrites, or medium-K basalts from intraoceanic arcs. Rather, these basalts are interpreted to result from recycling of olde ...
... are compositionally distinct from Mg-rich continental flood basalts that feature greater contents of Ti, and other incompatible elements, with fractionated HREE, or boninites, picrites, or medium-K basalts from intraoceanic arcs. Rather, these basalts are interpreted to result from recycling of olde ...
Igneous Rocks - Mrs. GM Earth Science 300
... Extrusive rocks cool faster than intrusive. Some rocks are shot into the air and cool pretty fast, others into waterways (also fast cooling). Some rocks however are underneath the crust so they cool more slowly. What can affect their formation? Typically, the melting is caused by one or more o ...
... Extrusive rocks cool faster than intrusive. Some rocks are shot into the air and cool pretty fast, others into waterways (also fast cooling). Some rocks however are underneath the crust so they cool more slowly. What can affect their formation? Typically, the melting is caused by one or more o ...
Unit 5.2 Notes
... • Rocks in the ________________________family contain lower proportions of silica than rocks in the felsic family do but contain higher proportions of silica than rocks in the mafic family do. • Rocks in the intermediate family include_____________________ and andesite. IV. Intrusive Igneous Rock St ...
... • Rocks in the ________________________family contain lower proportions of silica than rocks in the felsic family do but contain higher proportions of silica than rocks in the mafic family do. • Rocks in the intermediate family include_____________________ and andesite. IV. Intrusive Igneous Rock St ...
Rock Cycle - SchoolSpeak
... How the cycle works: • Igneous, Sedimentary & Metamorphic rocks undergo weathering, erosion, deposition, compaction & cementation to form sedimentary rock. ...
... How the cycle works: • Igneous, Sedimentary & Metamorphic rocks undergo weathering, erosion, deposition, compaction & cementation to form sedimentary rock. ...
Characteristics of Igneous Rocks
... its properties. The process of rock formation also influences the rock’s physical properties. During the rock cycle, different conditions determine how the rock forms. Sedimentary rock is formed when Rocks come in an amazing sediment is layered and pressed together over variety of textures and color ...
... its properties. The process of rock formation also influences the rock’s physical properties. During the rock cycle, different conditions determine how the rock forms. Sedimentary rock is formed when Rocks come in an amazing sediment is layered and pressed together over variety of textures and color ...
Formation of Magma and Igneous Rocks Basalt
... How do we classify igneous rocks into groups? • The chemistry of a magma controls the minerals present. • Higher temperature minerals (first to crystallize) are on the right, lower temperature minerals (last to crystallize) are on the left. • Note that dark colored minerals (e.g. olivine, pyroxene) ...
... How do we classify igneous rocks into groups? • The chemistry of a magma controls the minerals present. • Higher temperature minerals (first to crystallize) are on the right, lower temperature minerals (last to crystallize) are on the left. • Note that dark colored minerals (e.g. olivine, pyroxene) ...
How Does Earth Work?
... How do we classify igneous rocks into groups? • The chemistry of a magma controls the minerals present. • Higher temperature minerals (first to crystallize) are on the right, lower temperature minerals (last to crystallize) are on the left. • Note that dark colored minerals (e.g. olivine, pyroxene) ...
... How do we classify igneous rocks into groups? • The chemistry of a magma controls the minerals present. • Higher temperature minerals (first to crystallize) are on the right, lower temperature minerals (last to crystallize) are on the left. • Note that dark colored minerals (e.g. olivine, pyroxene) ...
Igneous Rocks - Salem State University
... mixing or differentiation, and compositionally lie between felsic and mafic magmas. Finally, ultramafic rocks, which are mantle-derived, have the lowest silica and greatest iron and magnesium content. As you can see in figure 3, igneous rock compositions lie along a broad continuum ranging from ultr ...
... mixing or differentiation, and compositionally lie between felsic and mafic magmas. Finally, ultramafic rocks, which are mantle-derived, have the lowest silica and greatest iron and magnesium content. As you can see in figure 3, igneous rock compositions lie along a broad continuum ranging from ultr ...
Chapter Three Igneous Processes and Igneous Rocks
... Chapter Three Igneous Processes and Igneous Rocks CHAPTER – 3 ...
... Chapter Three Igneous Processes and Igneous Rocks CHAPTER – 3 ...
IgneousPet423-13Intro
... magmatic liquids. They represent aliquots of liquid that have escaped to the surface. The compositional variation observed in the liquids that the volcanic rocks represent is produced by varying degrees of crystal fractionation of a largely “gabbroic” mineral assemblage that now comprises plutonic i ...
... magmatic liquids. They represent aliquots of liquid that have escaped to the surface. The compositional variation observed in the liquids that the volcanic rocks represent is produced by varying degrees of crystal fractionation of a largely “gabbroic” mineral assemblage that now comprises plutonic i ...
6.10B CLASSIFY ROCKS CLASSIFY ROCKS
... Rock - __________________________________________________________ _____________________________________________ A natural, solid mixture of m minerals or grains. ________________________________________________________________ A naturally occurring, inorganic solid with a definite chemical compositi ...
... Rock - __________________________________________________________ _____________________________________________ A natural, solid mixture of m minerals or grains. ________________________________________________________________ A naturally occurring, inorganic solid with a definite chemical compositi ...
Igneous Rocks Lab - SCWIBLES - University of California, Santa Cruz
... 5. Do you think the crystals in the rock would be bigger or smaller if this magma cooled at a higher temperature? Would they be bigger or smaller if cooled at a lower ...
... 5. Do you think the crystals in the rock would be bigger or smaller if this magma cooled at a higher temperature? Would they be bigger or smaller if cooled at a lower ...
Powerpoint Presentation Physical Geology, 10/e
... minerals, iron rich (50% silica) Intermediate rocks (diorite-andesite) contain roughly equal amounts of dark- and light-colored minerals Felsic rocks (granite-rhyolite) light-colored minerals, silica rich (65%) ...
... minerals, iron rich (50% silica) Intermediate rocks (diorite-andesite) contain roughly equal amounts of dark- and light-colored minerals Felsic rocks (granite-rhyolite) light-colored minerals, silica rich (65%) ...
ROCK CYCLE FUDGE
... We begin our journey through the rock cycle with sediments that have been weathered into small pieces. These sediments will come together to form sedimentary, then metamorphic rock. They will melt into magma, and finally end up as igneous rock. YOU are to play the part of the forces involved in crea ...
... We begin our journey through the rock cycle with sediments that have been weathered into small pieces. These sediments will come together to form sedimentary, then metamorphic rock. They will melt into magma, and finally end up as igneous rock. YOU are to play the part of the forces involved in crea ...
Mackenzie Large Igneous Province
The Mackenzie Large Igneous Province (MLIP) is a major Mesoproterozoic large igneous province of the southwestern, western and northwestern Canadian Shield in Canada. It consists of a group of related igneous rocks that were formed during a massive igneous event starting about 1,270 million years ago. The large igneous province extends from the Arctic in Nunavut to near the Great Lakes in Northwestern Ontario where it meets with the smaller Matachewan dike swarm. Included in the Mackenzie Large Igneous Province are the large Muskox layered intrusion, the Coppermine River flood basalt sequence and the massive northwesterly trending Mackenzie dike swarm.As a large igneous province, it is an extremely large area of related igneous rocks that were emplaced over an extremely short geological time span. The igneous rocks comprising the Mackenzie Large Igneous Province originated from processes not associated with normal plate tectonics and seafloor spreading. It is one of the several large igneous provinces scattered throughout the Canadian landscape, which can be thousands of kilometres in volume and area. The Mackenzie Large Igneous Province is also one of the largest Proterozoic magmatic provinces on Earth, as well as the world's largest and best-preserved continental flood basalt terrain. Igneous rocks of the Mackenzie Large Igneous Province are generally mafic in composition, including basalt and gabbro.Even though the Mackenzie Large Igneous Province is classified as a large igneous province like other extremely large accumulations of igneous rocks on Earth, it is much larger than large igneous province standards. The standard size classification for large igneous provinces is a minimum areal extent of 100,000 km2 (39,000 sq mi). However, the Mackenzie dike swarm itself occupies an area of at least 2,700,000 km2 (1,000,000 sq mi), making the Mackenzie Large Igneous Province larger than the Ontong Java Plateau in the southwestern Pacific Ocean and the U.S. state of Alaska.