While the former is created in high-temperature lava that leads to extremely low viscosity, the latter has a high viscosity. On the other hand, Felsic has much higher levels of silica. Granite is a great example of Felsic rocks and muscovite, quartz, and some feldspar are the best examples of Felsic minerals. Another point to emphasize is that mafic has a lower level of silica (45% to 55%) whereas felsic has a higher level of … It is not just silica and aluminum, but these rocks are also rich in oxygen, potassium, and sodium. Ini adalah istilah yang digunakan oleh ahli geologi untuk menggambarkan batuan beku berdasarkan kandungan silika mereka. Intermediate rocks are composed of the minerals amphibole and feldspar and contain a combination of light and dark minerals. Rocks are split into one of two categories based upon various factors. Most of the igneous rocks can be classified as Mafic or Felsic. What do the terms mafic and felsic mean? What is the difference between felsic and mafic rocks? ( 2014 ). On April 25, 2017 May 2, 2017 By Michael Davis. Felsic, intermediate and mafic igneous rocks differ in their mineral composition. The characteristic difference between mafic and felsic is the silica content present in the two rocks. Filed Under: Earth Tagged With: Felsic, Felsic Rocks, Mafic, mafic rocks. A few Helpful Terms: Viscosity: Viscosity is a measurement of how … (adsbygoogle = window.adsbygoogle || []).push({}); Copyright © 2010-2018 Difference Between. When used to describe the characteristics of lava, mafic lava would mean that it is runnier or more viscous as opposed to the felsic lava. As adjectives the difference between ultramafic and felsic is that ultramafic is (geology) describing igneous rocks that contain magnesium and iron and only a very small amount of silica, such as are found in the earth’s mantle while felsic is (mineralogy) enriched in the lighter elements such as silicon, oxygen, aluminium, sodium, and potassium. A phaneritic felsic rock is composed of crystals large enough to be seen with the naked eye. Diese Begriffe sind mafisch und felsisch. It is a glassy-textured, extrusive igneous rock. Bei der Beschreibung der Lavaeigenschaften bedeutet Mafic Lava im Vergleich zu Lava undicht oder klebriger. Dies sind Begriffe, die von Geologen verwendet werden, um magmatische Gesteine basierend auf ihrem Siliciumdioxidgehalt zu beschreiben. This broad grouping on the basis of mineralogy related to silica content is used in many modern classification schemes. All Felsic rocks contain a high percentage of silica. Water and other volatiles can more easily and gradually escape from mafic lava. Terms of Use and Privacy Policy: Legal. • Mafic-Gesteine haben eine dunklere Farbe als Felsic-Gesteine. Felsic rocks are mostly light-colored and the most common type is granite. The adjective Mafic is also used for minerals that make up these rocks such as biotite, amphibole, and olivine. As a result, eruptions of volcanoes made of mafic lavas are less explosively violent than felsic … Another characteristic feature of Mafic rocks is that they are dark in color and have a high density. • Mafic rocks are denser and heavier than Felsic rocks. It’s really a rather simply answer. In terms of chemistry, this means that mafic and felsic minerals and rocks are at opposite ends of the elemental spectrum. In contrast, felsic rocks are made up of a combination of feldspar and silica and are typically light colored rocks. phenocrysts) of mafic minerals such as pyroxene, hornblende, or a feldspar mineral. Thus, the basic name of a felsic rock is determined by the rock’s texture. Runny or sticky. Felsic rocks are commonly oversaturated and contain free quartz (SiO 2), intermediate rocks contain little or no quartz or feldspathoids (undersaturated minerals), and mafic rocks may contain abundant feldspathoids. The Quérigut mafic–felsic rock association comprises two main magma series. 1. As water, along with other volatile matter, easily and gradually escapes from mafic lava, volcanic eruptions composed of mafic lava explode less violently compared to some lava of different compositions. Therefore, rocks are divided into ultramafic, mafic, intermediate, and felsic. Dës Begrëffer si mafesch a felsesch. • Mafic and Felsic are categories into which igneous rocks are classified. Is Obsidian an Aphanitic? Compare the Difference Between Similar Terms. Igneous rocks are formed by the … • Mafic-Gesteine sind reich an Eisen und Magnesium, während Felsic-Gesteine reich an Siliciumdioxid und Aluminium sind. Mafic vs Felsic . Obsidian is an easily recognizable igneous rock. Mafic vs Felsic Im Begriff Mineralogie oder Geologie werden zwei Begriffe verwendet, um die Eigenschaften von Gesteinen und Lava allgemein zu beschreiben. Felsic is a term that is used to refer to igneous rocks rich in mineral feldspar. Mafic vs Felsic Am Konzept vu Mineralogie, oder Geologie am vill méi breede Sënn, ginn zwee Begrëffer allgemeng benotzt fir d'Charakteristike vu Fielsen an och Lavas ze beschreiwen. • Mafic rocks are darker in color than Felsic rocks. This is why silica content has been chosen to classify igneous rocks with higher silica content making a rock Felsic while lower silica content making them Mafic. Mafic vs. Felsic- How Lava Types Effect Volcanoes. These are igneous rocks that have a lower density than mafic rocks and are also lighter in color. The most common examples of rocks classified as Mafic are gabbro, dolerite, and basalt. Mafic lava creates basalt while felsic lava produces andesitic and rhyolite rocks. Here’s a lesson in geology discussing mafic and felsic rocks. • Mafische Felsen sind … Thus, it is clear that these igneous rocks are rich in magnesium and iron. • Silica is the most abundant material found in igneous rocks. In geology, mafic is a term which describes an igneous rock or a silicate mineral rich in iron and magnesium. These are both made up words used to indicate the chemical composition of silicate minerals, magmas, and igneous rocks. The second is intermediate to ultramafic, forming small diorite and gabbro intrusions associated with hornblendites and olivine hornblendites. • Mafic rocks are rich in iron and magnesium, whereas Felsic rocks are rich in silica and aluminum. • Mafic-Gesteine sind dichter und schwerer als Felsic-Gesteine. Sign up for our newsletter to get comparisons delivered to your inbox. Wenn mafische Lava verwendet wird, um die Eigenschaften von Lava zu beschreiben, würde sie bedeuten, dass sie im Gegensatz zur felsischen … Dies sind Begriffe, die von Geologen verwendet werden, um magmatisches Gestein auf der Basis von u zu beschreiben The term is derived from using the MA from magnesium and the FIC from the Latin word for iron, but mafic magmas also are relatively enriched in calcium and sodium. This is an order showing increased silica content. Mafic vs Felsic Im Begriff der Mineralogie, oder Geologie im viel weiteren Sinne, werden zwei Begriffe häufig verwendet, um die zu beschreiben Eigenschaften von Felsen und auch Lava. Sebagian besar batuan beku dapat diklasifikasikan sebagai Mafic atau Felsic. Somit sind Gesteine mit mehr als 65% Kieselsäure Felsic, während solche mit 45-55% Kieselsäure als Mafic-Gesteine klassifiziert werden. • Lava made up of Felsic rocks is slow moving and has a higher viscosity than Mafic lava. In a widely accepted silica-content classification scheme, rocks with more than 65 percent silica are called felsic; those with between 55 and 65 percent silica are intermediate; those with between 45 and 55 percent silica are mafic; and those with less than 45 percent are ultramafic. The word “felsic” is a combination of the words “feldspar” and “silica.”. Réng oder plakeg. Fließend oder klebrig. These are terms that are used by geologists to describe igneous rocks based upon their silica content. A rock is classified as felsic if it is composed of greater than 75% felsic minerals, which are orthoclase, plagioclase, and quartz. Diese Begriffe werden auch verwendet, wenn über die Eigenschaften von Lava gesprochen wird. unmetamorphosed rock from which certain metamorphic rocks come from) it may just be called a “felsic schist.”. Geologists use the terms “mafic” and “felsic” to classify rocks into specific groups. Mafic is used for silicate minerals, magmas, and rocks which are relatively high in the heavier elements. • Mafic Felsen sind reich an Eisen und Magnesium, während Felsic Felsen reich an Kieselsäure und Aluminium sind. Phaneritic felsic rocks are named using the QAPF diagram. The lava flow has a medium viscosity as well, and once cooled, the resulting rock is known as Andesite. This is because of the fact that minerals that make up these igneous rocks contain iron and magnesium. In terms of chemistry, this means that mafic and felsic minerals and rocks are at opposite ends of the elemental spectrum. For a quick summary, the disparity between them is obvious in their levels of viscosity. “Mafic” is a term that describes igneous rocks or silicate material characterized by a rich content of iron and magnesium while felsic rocks are igneous rocks that are rich in light elements such as oxygen, aluminum, silicon, potassium, and sodium. In geology, these terms are descriptive of the chemicals that make up igneous rocks, magmas, and silicate minerals. “Mafic” is a term that describes igneous rocks or silicate material characterized by a rich content of iron and magnesium while felsic rocks are igneous rocks that are rich in light elements such as oxygen, aluminum, silicon, potassium, and sodium. Silica content in Mafic rocks is around 50% by weight. It is also common for the species of mafic minerals to be used in the name, such as pyroxene tonalite or hornblende-bearing granite – the term “granite” indicates feldspar and quartz content. Die meisten der magmatischen Gesteine können als Mafic oder Felsic klassifiziert werden. Mafic vs Felsic Mafic und Felsic sind keine gebräuchlichen englischen Wörter. Many students confuse between the two adjectives Mafic and Felsic. It is contrasted with mafic rocks, which are relatively richer in magnesium and iron. In Bezug auf die Chemie bedeutet dies, dass sich mafische und felsische Mineralien und Gesteine an … This article attempts to remove all confusion from the minds of the readers regarding the two terms Mafic and Felsic. Felsic rocks are composed of high levels of magma, silicate materials, and rocks which are also rich in potassium, oxygen, silicon, and sodium. Mafic and Felsic are not common English language words. Mafic rocks are darker and are composed of magnesium and iron. Coming from Engineering cum Human Resource Development background, has over 10 years experience in content developmet and management. For example, granite contains around 70% of silica. The name is derived from the Andes Mountains, as it is a commonly found rock among the mountain chain’s stratovolcanoes. 1. flüssig oder klebrig. In addition, if a felsic rock is found to be metamorphic with no traces of volcanic protolith (i.e. In conclusion, you have seen the most significant points in mafic vs felsic. In such cases, it’s customary for the rock to be named after the phenocryst mineral e.g. Intermediate lava has a lower silica content than felsic lava, but not as high magnesium or iron levels as found in mafic lava. Obsidian is a natural glass - it lacks crystals, and therefore lacks minerals. Learn vocabulary, terms, and more with flashcards, games, and other study tools. 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The first is felsic comprising a granodiorite–tonalite, a monzogranite and a biotite granite. Felsic rocks are composed of minerals such as quartz, orthoclase, muscovite, and feldspars. “hornblende-bearing felsite.”, Felsic rocks are given chemical names as determined by the TAS (Total Alkali Silica) classification, a system of assigning types of volcanic rocks relative to their alkali and silica content. Minerals that usually form mafic rocks are clinopyroxene and/or orthopyroxene, olivine, biotite, and amphibole. Felsic is a term that is made up of the names of Feldspar and silica. 1. 5. In geology, felsic is an adjective describing igneous rocks that are relatively rich in elements that form feldspar and quartz. The term “mafic” combines the words “magnesium” and “ferric” and are usually dark-colored rocks. This article aims to sift through the rubble and find out how mafic rocks are different from felsic rocks. Mafic is an acronym made up of Ma that stands for Magnesium and Fic that stand for iron or ferric, the Latin name of iron. Mafic vs Felsic Mafic dan Felsic bukan kata-kata bahasa Inggris yang umum. Felsic rocks are light in color and are composed of feldspars and silicates. Felsic refers to silicate minerals, magma, and rocks which are enriched in the lighter elements such as silicon, oxygen, aluminium, sodium, and potassium. Fields for MORB and OIB are from Chauvel, Lewin, Carpentier, Arndt, and Marini ( 2008 ); upper continental crust (UCC) from Chauvel et al. Felsic magma has more oxygen, so it flows less. Basically, for magma to flow, oxygen bonds have to break. Mafic lava, before cooling, has a low viscosity, in comparison with felsic lava, due to the lower silica content in mafic magma. The term felsic describes igneous rocks that are relatively rich in the elements that form quartz and feldspar. The term mafic is a combination of the words “magnesium” and “ferric.” The majority of mafic minerals are dark green or greenish black and are medium to coarse-grained. Felsic magma or lava is higher in viscosity than … These terms are also used while talking about the characteristics of lava. Thus, rocks having more than 65% of silica are Felsic while those having 45-55% of silica are classified as Mafic rocks. Most of these rocks are gray though Mafic rocks are also found in brown, green, and even black colors. Viscosity is dependent on molecular bonds, and density is dependent on, well, density. Due to the color of the minerals forming them, the rocks are either light or dark. Mafic has low levels of silica. Start studying felsic vs. mafic. Approximately only 45-55%. So what’s the difference between mafic and felsic? Mafic vs Felsic Mafic und Felsic sind keine gebräuchlichen englischen Wörter. Sometimes, felsic volcanic rocks contain small amounts (i.e. felsic Bedeutung, Definition felsic: 1. used to refer to rocks containing more light-coloured substances and aluminium than other rocks 2. describes rocks containing more light-colored substances and aluminum than other rocks. Istilah ini juga digunakan saat berbicara tentang karakteristik lava. Mafic vs Felsic In the concept of mineralogy, or geology in the much broader sense, two terms are commonly used to describe the characteristics of rocks and also lava. Mafic and Felsic are not common English language words. Mafic … Mafic rocks have between 45 and 55% of silica, whereas felsic rocks have over 65% of silica, the highest of all types. When it comes to chemistry, felsic minerals and rocks are at the opposite end of the elemental spectrum as mafic minerals and rocks are. Diese Begriffe sind mafisch und felsisch. Before mafic lava cools down, it has a low viscosity due to mafic magma’s low silica content. "Mafic" ist ein Begriff, der magmatisches Gestein oder Silikatmaterial beschreibt, das durch einen hohen Gehalt an Eisen und Magnesium gekennzeichnet ist, während felsisches Gestein magmatisches Gestein ist, das reich an leichten Elementen wie Sauerstoff, Aluminium, Silizium, Kalium und Natrium ist. Mafic rocks usually found in abundance include dolerite, gabbro, and basalt. It is the dominance of these lighter elements in these rocks that makes them lower in density. These two types of rock, which include felsic and mafic rocks, are important for distinguishing between volcano types and depositional environments. Igneous Rocks explained in simple terms with examples.In this video. Pegmatites are little different from the common igneous rocks in major elements of bulk composition, and they range from felsic to mafic (silica-rich to silica-poor); granitic and syenitic types are most abundant. 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