Igneous Rocks - Northern Arizona University

A basalt is about 53% SiO2, whereas granite is 73%. Intrusive, slowly cooled inside the crust. (Plutonic rock = formed in the earth). Large crystals. Granite. (Continental crust) Density 2.7-2.8. High silica content (acidic). = quartz + mica + K-feldspar in solid solution. 60% orthoclase and plagioclase fledspars + 25% quartz + 5% darker ...

Density & Specific Gravity | Some Meteorite Information ...

The density of basalt, one of the most common kinds of terrestrial volcanic rocks, can be as high as 3.0 g/cm 3. The only types of terrestrial rocks that are more dense than meteorites are ores – oxides and sulfides of metals like iron, zinc, and lead.

Mafic Vs. Felsic Rocks: Know the Difference - Science Struck

Because of these high temperatures, the viscosity is usually low as compared with felsic lava. Mafic lava leads to weaker volcanic eruptions. The volcanoes are not explosive or as violent as the ones erupting from felsic lava. Basalt lava is associated with lowly shield-volcanoes. Most felsic lavas have high …

Rhyolite vs Basalt - Compare Nature

When we have to compare Rhyolite vs Basalt, the texture, color and appearance plays an important role in determining the type of rock. Rhyolite is available in grey, white, light black colors whereas, Basalt is available in black, brown, light to dark grey colors. Appearance of Rhyolite is Banded and that of Basalt …

Does basalt have high or low density or is it a variable ...

May 15, 2011· The density of basalt is 2.9 to 3.0 g/cc, which is high compared to most other igneous rocks which are 2.6 to 2.7 g/cc. EDIT - the density of basalt can vary, as certain varieties of basalt are lighter than the 2.9 to 3.0 g/cc that I stated.

Densities of Igneous Rocks — GPG 0.0.1 documentation

2017, GeoSci Developers. Except where noted, this work is licensed under a Creative Commons Attribution 4.0 International License

Geology Exam 3 Flashcards | Quizlet

high silica results in low-viscosity, fluid lava. low silica results in low-viscosity, fluid lava. low silica results in high-viscosity, pasty lava. high silica results in high-viscosity, fluid magma.

What is the density of magma? - Quora

Aug 07, 2017· Density of magma is variable and is dominantly controlled by the composition. Compositionally there are three types of magma: * Basaltic magma * * Density→ 2.65–2.80 g/cm³ * Since basaltic magmas are enriched in Fe, Mg, Ti due to which the density...

Basalt Facts - Softschools.com

Basalt is Earth's most abundant bedrock, and a very important rock. The Earth's ocean basins are underlain by basalt, but it is less common on continents. However, lava flows and flood basalts underlie several percent of Earth's land surface. It is an igneous rock and is usually fine-grained and dark-colored, composed mainly of plagioclase and pyroxene minerals.

Instructor Page - Calculating Density

Why is it hard for students? Students have difficulty with density because they confuse it with weight. Things that weigh a lot and have a high density are typically called "heavy," which adds to this confusion. Likewise colloquially "light" can mean both low-density and weighing little.

How is the density of Rhyolite likely to ... - Yahoo Answers

Nov 14, 2007· Rhyolite and granite are less dense than their mafic counterparts, basalt and gabbro. Reason. Gabbro and basalt have lots of iron and magnesium, two elements with high atomic masses. Ryholite are primarily silicon and oxygen, (lighter elements)

If something has a higher density, does it have more mass ...

Mar 31, 2017· No. An example: That little pebble in your garden has a higher density than the water in the ocean. Nevertheless, the ocean has more mass than the pebble. Something with a higher density has more mass in the same volume. A liter of stone has more ...

Which of the following is the best comparison of the ...

The fifth column titled boiling point (degrees C) has entries not observed, negative 34.04, not observed. The sixth column titled melting point (degrees C) has entries 97.72, not observed, 1413.85. The seventh column titled electrical conductivity has entries high, very low, medium. Which element (A, B, or C) is most likely a metalloid?

Basalt Fibers: Alternative to Glass? | CompositesWorld

Aug 01, 2006· While basalt fiber is still not widely used, it is slowly making its way into the hand of consumers. At price points that vary between S-glass ($5/lb to $7/lb) and E-glass ($0.75/lb to $1.25/lb), basalt fibers have properties akin to S-glass. A common use is in the fire protection sector because of its high …

Basalt Rock Properties and Uses - Science Struck

This property is common amongst most dense, fine-grained textured rocks, such as basalt. Density. The density of basalt is quite high, which can be seen through the combination of the rocks porosity: 0.1 – 1%, and its bulk density: 2.8 – 3 Mg (megagram) per m 3, This is because, around 50 percent of basalt is made of silica. Uses of Basalt Rock

Which Rocks Absorb Heat the Best? | Hunker

For common natural materials, the stones with the highest energy density (from high to low) are gypsum, soapstone, basalt, marble, limestone, sandstone and granite. For common man-made materials used in construction, the stone with the highest energy density is fire brick, followed by asphalt, concrete and regular brick.

What density is basalt - Answers

The density of basalt is normally between 2.8 and 3.0 g.cm-3. This density varies with the type of minerals that compose it.

What Is the Densest Element on the Periodic Table?

Basalt is the type of rock with the highest density. With an average value around 3 grams per cubic centimeter, it's not even close to that of the metals, but it's still heavy. Depending on its composition, diorite might also be considered a contender.

basalt | Definition, Properties, & Facts | Britannica

Basalt, extrusive igneous (volcanic) rock that is low in silica content, dark in color, and comparatively rich in iron and magnesium. Basalts may be broadly classified on a chemical and petrographic basis into two main groups: the tholeiitic and the alkali basalts. Learn more about basalt in this article.

Why is granite less dense than basalt and what process ...

Dec 05, 2015· Density is a mass per volume, let say if we have same ammount of volume granite and basalt what make granite less dense is because it has less mass than basalt. Now, how come the mass of granite is lesser than basalt? The mass of granite and bas...

Komatiite - Wikipedia

Komatiite (/ k oʊ ˈ m ɑː t i. aɪ t /) is a type of ultramafic mantle-derived volcanic rock defined as having crystallised from a lava with ≥ 18 wt% MgO. Komatiites have low silicon, potassium and aluminium, and high to extremely high magnesium content. Komatiite was named for its type locality along the Komati River in South Africa, and frequently displays spinifex texture composed of ...

Magmas, Igneous Rocks, Volcanoes and Plutons

But, because basaltic magma has a high density it may stop in the crust and crystallize, releasing heat into the surrounding crust. This raises the geothermal gradient and may cause wet partial melting of the crust to produce rhyolitic magmas.

Ocean density — Science Learning Hub

Density can be calculated by dividing an object's mass by its volume. It is commonly measured in grams per millilitre or grams per cubic centimetre. For example, basalt is a very dense rock with an average mass of around 3 g/cm 3 but it is still not as dense as elemental iron, with a mass of nearly 8 g/cm 3 .

Basalt - Wikipedia

Difference Between Basalt and Granite | Compare the ...

Phsysical Geology, Igneous Rocks - Union College

Mafic minerals These are generally dark in color and have high density. They are characterized by high concentrations of some combination of iron, magnesium, calcium, and titanium. They tend to have low concentrations of silica, sodium, aluminum, and potassium.

Density of basalt - Answers

Basalt is poor in silica, dark in color, dense, and has a high melting point. Andesite has a moderate amount of silica, a moderate melting point, a moderate density, and can rgane from light to ...

Basalt FAQs - Smarter Building Systems

They also have a high elastic modulus, resulting in excellent specific strength—three times that of steel. Q. WHAT MAKES BASALT SPECIAL? A. Superior Thermal Protection. Our Basalt has a thermal range of -260 C to +982 C (1800 F) and melt point of 1450 C. Fibers are …

Astronomy Chapter 9 (Test #3) Flashcards | Quizlet

A type of dark, high-density volcanic rock that is rick in iron and magnesium-based silicate minerals; it forms a runny (easy flowing) lava when molten. Outgassing The process by releasing gases from a planetary interior, usually through volcanic eruptions.