What are the characteristics of igneous rocks?

Crystalline texture with interlocking crystals in a mosaic

Quartz, plagioclase and potash felspar, hornblende, augite, olivine, micas (muscovite and biotite)

Quartz, potash feldspar, calcite, clay minerals, rock fragments

Quartz, plagioclase and potash feldspar, calcite, micas (muscovite and biotite), garnet, Al3SiO5 polymorphs

Occasionally fossils, if present heavily deformed

Alignment of crystals, sometimes shows foliation

Quiz

Ohne Titel

Katy Thompson 4 Fragen

Quiz starten

1What are the characteristics of igneous rocks?
1. AFragmental texture
2. BCrystalline texture with interlocking crystals in a mosaic
3. CQuartz, plagioclase and potash felspar, hornblende, augite, olivine, micas (muscovite and biotite)
4. DQuartz, potash feldspar, calcite, clay minerals, rock fragments
5. EQuartz, plagioclase and potash feldspar, calcite, micas (muscovite and biotite), garnet, Al3SiO5 polymorphs
6. FFossils present
7. GNo fossils present
8. HOccasionally fossils, if present heavily deformed
9. INo preferred alignment
10. JAlignment of crystals, sometimes shows foliation
2The geological time scale from biggest to smallest is as follows:
Eon
Era
Period
Epoch
1. ARichtig
2. BFalsch
3The type of rock forming minerals can be identified which of the following characteristics?
1. ALustre
2. BReaction with acid
3. CSpecific gravity
4. DCleavage and fracture
5. EHabit
6. FColour
7. GHardness
8. HAge
4Crystallisation, partial melting, magma accumulation and intrusions all happen to what rock type?
1. AIgneous
2. BMetamorphic
3. CSedimentary