Geology midterm review Flashcards
what part of the earths interior is in liquid state? asthenosphere outer core lithosphere mesosphere crust
Outer core
which of the following components of the earth's interior is / are situated at the surface? lithosphere athenosphere crust both b and c both a and c
A and C - lithosphere and crust
the guttenburg discontinuity corresponds to the boundary between the ____ and the ____
outer core and the mesosphere
actual magnetic polarity at the mid - oceanic ridge is
Normal
what morphological feature occurs in the ocean in a zone of subduction?
oceanic trench
what is the first phase of ocean formation?
continental drift
the red sea represents what stage of oceanic evolution?
early oceanic basin formation
which of the following minerals belongs to the sulphate group? aragonite halite anhydrite a and c b and c
Anhydrite
which of the following minerals is a carbonate? halite olivine biotite dolomite quartz
Dolomite
which of the following minerals is a neosilicate? halite olivine biotite quartz calcite
Olivine
what is the most frequent sulphate?
Gypsum
what type of bond is between a silica tetraedra in silicate minerals?
ionic
whats the texture of an intrusive igneous rock?
Phaneritic
initiation of the mineral formation process is known as?
Nucleation
what igneous rock texture demonstrates a fast but not the fastest process of cooling?
Aphanitic
