Table of Contents
- 1 Which igneous rock contains the mineral potassium feldspar?
- 2 Which of these igneous rock that have a vesicular texture?
- 3 Does igneous rock contain feldspar?
- 4 Which type of igneous rock is potassium feldspar most common?
- 5 Which igneous rock has a vesicular texture and a mafic composition?
- 6 Which igneous rock has a vesicular texture and mafic composition?
- 7 Is potassium feldspar found in Basalt?
- 8 Which is igneous rock has a vesicular texture and contains minerals?
- 9 Which is igneous rock contains the minerals umice and umice?
- 10 Which is igneous rock is Dalk _ ßqjored, cooled rapidly on earth’s surface?
Which igneous rock contains the mineral potassium feldspar?
granite
An example of such a mosaic is granite, a coarse-grained, intrusive rock containing potassium feldspar, quartz, plagioclase feldspar, and small amounts of biotite and hornblende.
Which of these igneous rock that have a vesicular texture?
Vesicular texture — basalt scoria: This is an extrusive igneous rock that chilled very quickly, so that the bubbles (vesicles) formed by escaping gas were preserved.
Which igneous rock has a vesicular texture and contains the minerals plagioclase feldspar pyroxene and olivine?
4.3.2.3 Mafic Extrusive Igneous Rocks. Basalts are common aphanitic igneous extrusive (volcanic) rocks. Basalts are composed of minute grains of plagioclase feldspar (generally labradorite), pyroxene, olivine, biotite, hornblende and <20% quartz.
Does igneous rock contain feldspar?
Feldspars are the most abundant minerals in almost all crustal igneous rocks, those without feldspars being rarities. Feldspars define better than any other mineral group the three stages in the evolution of igneous rocks, the magmatic growth, the subsolidus transformation and the deuteric alteration stages.
Which type of igneous rock is potassium feldspar most common?
Felsic igneous rocks
Felsic igneous rocks are silica rich and contain abundant potassium feldspar and quartz. Felsic igneous rocks are light in color.
What is the texture of igneous rock?
The texture of an igneous rock made up entirely of crystals big enough to be easily seen with the naked eye is phaneritic. Phaneritic texture is sometimes referred to as coarse-grained igneous texture. Granite, the most well known example of an intrusive igneous rock, has a phaneritic texture.
Which igneous rock has a vesicular texture and a mafic composition?
Classification of Igneous Rocks
| COMPOSITION | ||
| TEXTURE | Felsic | Mafic |
|---|---|---|
| Phaneritic | Granite | Gabbro |
| Aphanitic | Rhyolite | Basalt |
| Vesicular | Pumice | Scoria |
Which igneous rock has a vesicular texture and mafic composition?
Classification of Igneous Rocks
| TEXTURE | Felsic | Mafic |
|---|---|---|
| Phaneritic | Granite | Gabbro |
| Aphanitic | Rhyolite | Basalt |
| Vesicular | Pumice | Scoria |
| Glassy | Obsidian |
Which type of igneous rock would you expect to contain 70 plagioclase feldspar?
Igneous Rock Charts
| Texture V | Color> | Medium to Dark Colored: Purple, Greenish |
|---|---|---|
| — | Minerals > | 55-70% plagioclase feldspar 15-40% biotite & amphibole |
| Composition | — | Intermediate |
| Fine = aphanitic | Extrusive volcanic | Andesite |
| Coarse = phaneritic | Intrusive plutonic | Diorite |
Is potassium feldspar found in Basalt?
Granites and rhyolites consist predominantly of quartz and potash feldspar; gabbros and basalts, predominantly of pyroxene and plagioclase feldspar.
Which is igneous rock has a vesicular texture and contains minerals?
Which igneous rock has a vesicular texture and contains the minerals potassium A) andesite ) umice B) pegmatite D) scoria What is the origin of fine-grained igneous rock? A) lava that cooled slowl on Earth’s surface n Earth’s surfa C) silt that settled slowly in ocean water D) silt that settled quickly in ocean water
Which is a rock made up primarily of pyroxene and plagioclase?
B) Gabbro always contains less plagioclase than pyroxene. C) Plagioclase feldspars always make up 25% of a gabbro sample. D) Gabbro contains no plagioclase feldspars. 18. Which is a fine-grained igneous rock made up primarily of pyroxene and plagioclase feldspar?
Which is igneous rock contains the minerals umice and umice?
Name A) obsidian C) gabbro B) rh olite D) scoria 4. Which igneous rock has a vesicular texture and contains the minerals potassium A) andesite ) umice B) pegmatite D) scoria What is the origin of fine-grained igneous rock?
Which is igneous rock is Dalk _ ßqjored, cooled rapidly on earth’s surface?
Obsidian’s glassy texture indicates that it formed A) slowly, deep below Earth’s surface B) slowly, on Earth’s surface C) quickly, deep below Earth’s surface D) quick y, on Earth’s surface 3. Which igneous rock is dalk_ßQJored, cooled rapidly on Earth’s surface, and is composed mainly of plagioclase feldspar, olivine, and pyroxene?