-
potential sources of
diapirs.
Diapirs also form in the Earth's
mantle when a
sufficient m**** of hot, less
dense magma ****embles.
Diapirism in the
mantle is...
- of salt
needed to form a
layer thick enough for the
formation of salt
diapirs,
indicating that a
sustained period of
episodic flooding and evaporation...
- of
relatively buoyant magma in
large m****es
called plutonic diapirs.
Because the
diapirs are
liquified and very hot, they tend to rise
through the surrounding...
-
create larger veins.
Under the
influence of buoyancy, the melt rises.
Diapirs may also form in non-silicate bodies,
playing a
similar role in moving...
-
evaporite deposits of Jur****ic age.
These salt
deposits formed salt dome
diapirs, and are
found in East
Texas along the Gulf coast. East
Texas outcrops...
- for
later magma.
These mechanisms can
operate in tandem. For example,
diapirs may
continue to rise
through the
brittle upper crust through stoping, where...
- One
suggests that
hotspots are due to
mantle plumes that rise as
thermal diapirs from the core–mantle boundary. The
alternative plate theory is that the...
-
responsible for the
formation of domes, the
foremost of
which are refolding,
diapirism,
igneous intrusion, and post-impact uplift.
Structural domes can be formed...
- denser. The
density contrast is the
mechanism in
which salt
begins to rise.
Diapirs rise and
pierce the surface,
allowing the salt to flow
because of gravity...
-
depressions in the gulf floor.
Hydrocarbons and gas
hydrates rising from salt
diapirs may
cause doming of the gulf floor, with the gas
sometimes erupting strongly...
