Which igneous rock has a vesicular texture?
scoria Vesicular texture refers to volcanic rocks that contain holes called vesicles that were formed by gas bubbles in lava. This igneous rock is called scoria. It has vesicular texture.
Are extrusive rocks vesicular?
The extrusive rocks scoria and pumice have a vesicular, bubble-like, texture due to the presence of vapor bubbles trapped in the magma.
What igneous rock contains vesicles?
Basalt. Basalt is made of fine-grained interlocking crystals (about 1mm in size). It is black or dark grey in colour, and often contains vesicles – bubbles of gas trapped as the lava cooled.
Is basalt a vesicular?
Basalt often contains vesicles, formed when dissolved gases bubble out of the magma as it decompresses during its approach to the surface, and the erupted lava then solidifies before the gases can escape.
Is vesicular basalt a metamorphic rock?
The rock was subjected to low-grade metamorphism and fluid ingress as later lavas covered this one, and the cavities (vesicles) that originally formed as gas bubbles in the lava were filled with secondary minerals such as the zeolite mineral pumpellyite.
Are igneous rocks vesicular?
extrusive igneous rocks Such openings are called vesicles, and the rocks in which they occur are said to be vesicular. Where the openings lie close together and form a large part of the containing rock, they impart to it a slaglike, or scoriaceous, structure.
What rocks have vesicles?
Basalts are most commonly vesicular. The drop in pressure that a magma experiences as it flows from underground to the Earth's surface allows water and gases in the lava to form bubbles.
What texture is granite?
Phaneritic Granite
| Type | Igneous rock |
|---|---|
| Texture | Phaneritic (Coarse-grained) |
| Origin | Intrusive/Plutonic |
| Chemical Composition | Felsic |
| Color | Predominantly white |
Is vesicular basalt a sedimentary rock?
Vesicular basalt is a dark-colored volcanic rock that contains many small holes, more properly known as vesicles. A vesicle is a small cavity in a volcanic rock that was formed by the expansion of a bubble of gas that was trapped inside the lava.
Can extrusive igneous rocks be vesicular?
extrusive igneous rocks Such openings are called vesicles, and the rocks in which they occur are said to be vesicular.
What texture is sandstone?
Sandstones are made of sand grains that have been cemented together. Like sandpaper, sandstones usually have a rough, granular texture, but to really identify a sandstone you have to peer closely at its surface and look for individual sand grains.
What is the texture of limestone?
Most limestones have a granular texture. Their constituent grains range in size from 0.001 mm (0.00004 inch) to visible particles. In many cases, the grains are microscopic fragments of fossil animal shells.
Which igneous rock has a vesicular texture and a mafic composition?
The correct answer is (3) pumice. Pumice is an igneous rock that contains highly vesicular textured surface.
What texture is limestone?
granular texture Most limestones have a granular texture. Their constituent grains range in size from 0.001 mm (0.00004 inch) to visible particles.
What texture is igneous rocks?
Igneous textures include the rock textures occurring in igneous rocks. Igneous textures are used by geologists in determining the mode of origin of igneous rocks and are used in rock classification. The six main types of textures are phaneritic, aphanitic, porphyritic, glassy, pyroclastic, and pegmatitic.
What is the texture of a sandstone rock?
Sandstones are made of sand grains that have been cemented together. Like sandpaper, sandstones usually have a rough, granular texture, but to really identify a sandstone you have to peer closely at its surface and look for individual sand grains.
What is the texture limestone sedimentary rock?
Most limestones have a granular texture. Their constituent grains range in size from 0.001 mm (0.00004 inch) to visible particles. In many cases, the grains are microscopic fragments of fossil animal shells.
What is a vesicular basalt?
Vesicular basalt is a dark-colored volcanic rock that contains many small holes, more properly known as vesicles. A vesicle is a small cavity in a volcanic rock that was formed by the expansion of a bubble of gas that was trapped inside the lava.
Which igneous rock has a vesicular texture and a felsic composition quizlet?
The correct answer is (3) pumice. Pumice is an igneous rock that contains highly vesicular textured surface.
What is the texture of shale?
Shale
| Type | Sedimentary Rock |
|---|---|
| Texture | Clastic; Very fine-grained (< 0.004 mm) |
| Composition | Clay minerals, Quartz |
| Color | Dark Gray to Black |
| Miscellaneous | Thin platy beds |
What is the texture of sedimentary rocks?
Two main natural textural groupings exist for sedimentary rocks: clastic (or fragmental) and nonclastic (essentially crystalline).
What is a vesicular felsic rock called?
A vesicular Felix rock is called a: Pumice.
What texture does metamorphic rocks have?
The texture of a metamorphic rock can be either foliated and appear layered or banded, or non-foliated and appear uniform in texture without banding. Foliated rocks are made up of many different kinds of minerals that can be ordered by increasing exposure to heat and pressure.
What type of rock is sandstone?
Sandstone is a type of sedimentary rock. It forms when grains of sand are compacted together over very long periods of time. Normally this sand has an abundance of quartz but can also contain other minerals and materials. Sandstone comes in a variety of colors including red, yellow, gray, and brown.
Is a volcanic rock that is extremely vesicular and glassy?
Scoria is an extremely vesicular basaltic lava with very small (< 1mm) vesicles. You can find scoria all over North America: The red variety of scoria (it also comes in black) is commonly used as landscaping pebbles at Taco Bell. Landscapers know this rock as lava rock. Pumice is a froth of felsic volcanic glass.
What is the texture of metamorphic rocks?
The texture of a metamorphic rock can be either foliated and appear layered or banded, or non-foliated and appear uniform in texture without banding. Foliated rocks are made up of many different kinds of minerals that can be ordered by increasing exposure to heat and pressure.
What is basalt rock type?
basalt, extrusive igneous (volcanic) rock that is low in silica content, dark in colour, and comparatively rich in iron and magnesium.
Which igneous rock has a vesicular texture and a felsic composition?
The correct answer is (3) pumice. Pumice is an igneous rock that contains highly vesicular textured surface.
What texture does basalt have?
Basalts have almost always aphanitic or fine-grained mineral texture resulting from rapid cooling of volcanic magma.
Is vesicular basalt mafic or felsic?
Mafic Classification of Igneous Rocks
| COMPOSITION | ||
| TEXTURE | Felsic | Mafic |
|---|---|---|
| Phaneritic | Granite | Gabbro |
| Aphanitic | Rhyolite | Basalt |
| Vesicular | Pumice | Scoria |