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Mount Leura is a 313 metre scoria cone surrounding a dry crater 100
m deep and is the central and most obvious component of a larger
volcanic complex southeast of the town of Camperdown located in
western Victoria, Australia, 194 kilometres (121 mi) km south west
of the state capital, Melbourne. The inactive volcano is thought to
have last erupted between 5,000 and 20,000 years ago. The name
means "big nose" in local aboriginal dialect. Mount Leura, together
with nearby Mount Sugarloaf, forms part of a large extinct volcanic
complex known as the "Leura Maar." The complex includes a broad
shallow maar crater measuring 2.5 km by 1.7 km surrounded by a low
tuff ring, inside which are the secondary eruption points of Mount
Leura and several smaller unnamed mounds and cones of scoria. These
may represent eruptions along a north-south fissure. The walls of
the cone are alternating layers of tuff and scoria with numerous
blocks and volcanic bombs. Mount Sugarloaf is a perfect conical
mound on the southwestern flank of Mount Leura and represents a
final stage of activity of the Leura volcano, when a small vent
ejected a large volume of lava fragments in a short time.
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