- type in
island arcs. The
average composition of the
continental crust is
andesitic.
Along with basalts,
andesites are a
component of the
Martian crust. The...
- addition, the
relative abundance of
volatiles varies within basaltic,
andesitic, and
rhyolitic magma chambers,
leading to some
volcanoes being exceedingly...
- low-silica
basaltic ash, and
tuffs are
likewise described as rhyolitic,
andesitic, basaltic, and so on. The most
straightforward way for
volcanic ash to...
-
Yantarni Volcano is an
andesitic stratovolcano in the U.S.
state of Alaska. It is on the
Alaska Peninsula, in the
Aleutian Range,
between Mount Aniakchak...
- glaciers, the
volcano is
covered with craters. The
volcano is
dominantly andesitic to dacitic. This
means that the lava is blocky, or
flowing down the sides...
-
within Villarrica National Park. Villarrica, with its lava of basaltic-
andesitic composition, is one of only five
volcanoes worldwide known to have an...
- but its
activity may
extend into the Holocene. Its
primary lavas are
andesitic and
basaltic flows,
although it has also
produced pyroclastic flows. Lahars...
-
basaltic andesite flows,
small sub-volcanic
intrusive bodies and
modern andesitic stratovolcanoes.
Previous studies (Davydov et al.;
Vitukhin et al.) suggested...
-
Snake River Plain of the
northwestern United States.
Intermediate or
andesitic magmas contain 52% to 63% silica, and are
lower in
aluminium and usually...
-
Martinique has
eight centres of
volcanic activity. The
oldest rocks are
andesitic lavas dated to
about 24
million years ago,
mixed with
tholeiitic magma...
