You are seeing Ask web results for amygdaloidal lava because there was not a match on Dictionary.com.
|
According to my reading, amygdaloidal lava forms when lava hardens with veins and bubbles of mineral filled gas in it. Then the minerals become rock too. ...
|
|
The drop in pressure that a magma experiences as it flows from underground to the Earth's surface allows water and gases in the lava to form bubbles. If the bubbles do not get large enough to pop, they are frozen in the lava as vesicles.
|
|
|
The amygdaloidal lava flow at the base of the Loudoun is gener- ally reddish brown or dark brown. A few exposures show a choco- ...
|
|
|
51, Massive, amygdaloidal lava. Hersey Lake, Mafic and komatiitic lavas. Unconformable contact and Porcupine-Destor deformation zone. Deloro, Mafic lavas ...
|
|
|
Amygdales are spherical cavities within basic igneous rock, normally basaltic, formed by the presence of gas bubbles trapped within the molten lava as it cools and solidifies. ... Description: Rock specimen of amygdaloidal basalt lava. East of Glamaig, south side of Loch Sligachan, Skye, Invernessshire, Scotland.
|
|
|
The sample is a striking example of an amygdaloidal lava, with streaked-out whitish amygdales in a fine-grained purple-coloured groundmass. Some parts of the groundmass are a mottled greyish colour where the fine-grained iron oxides in the groundmass have been chemically reduced as a result of reactions with the amygdales.
|
|
|
The claims Ile in a belt of interaediete to folalc aetevolcantca, predominantly amygdaloidal lava. *md Intrusive of ne t a^ gabbro. They are cut by occaalonal dlabaaa dikes The general atrike of the netavolcantca la northeast and dipa aro mainly ateep to the north.
|
|
|
"The suggestion that the Skye amygdaloidal gabbro represents amygdaloidal basaltic lava in which the grain-size has been coarsened by recrystallization does not imply 'an unusual type of metamorphism' as Bailey supposes.
|
|
|
Pahoehoe lava flow lobes in the amygdaloidal lava sequence in the southern locality of the Nhlebela Formation. The upper and lower zones are highly ...
|
|
|
RCBb, −29.04°, 024.56, 3, Amygdaloidal lava, Sub-horizontal ... At Ritchie, two lava flows separated by a prominent amygdaloidal flow-top were sampled. ...
|
