Volcanic
horst A block forced down forms a valley and is
called a graben (Fig 2) The Vosges mountain,
the Vindhyas in India and the Black Fores, in
Europe are examples of such mountains
rock from deep inside the Earth erups
the Earts crust and its up to form a high
cone-shaped mountain Hg 4. Moun
Kilimanjaro in Arce and Moun Fujamo in
Japan are famous examples
Horst
fig 4 Formoon of ovo concourt
Usefulness of Mountains Isparta
Fig. 2 Formation of block mountains
Fold Mountains
Fold mountains are formed when two tectonic
plates push together at the border. The extreme
pressure folds the edges of the tectonic plates
upwards into folds. A fold mountain can have
more than one type of fold It can show both
anticline and syncline. Antidine fold has the
oldest rock in the centre, while a syncline is U
shaped with the youngest rock in the centre
(Fig. 3). However, fold mountains form over
millions of years, as tectonic plates move only a
few centimetres a year. Young fold mountains,
like the Himalayas in Asia and the Alps in
Europe, have high elevation, sharp peaks and
steep slopes Over the years, the mountains are
worn down by forces of wind and water, and
become old fold mountains with low elevation
and rounded peaks. For example, the Aravallis
in India, the Appalachians in North America
and the Urals in Europe
mple,
re
ove,
the
ga
Mountains are a storehouse of water
Glaciers are the source d many times which
have water throughout the year
• The waterfalls are ideal ches for bulding
dams
• River valleys and terraces provide sudde
sites for cultivation
• Dense forests on mountain soves hove o nich
variety of flora and found, and proide foode,
fuel and forest products ke gum and resin
• Mountains are scenic, pristine tourist spots
Many adventure sportske tverrfing,
paragliding, hand gliding and sking are
carried on in mountains
Volley & Rift Valley
• A valley is the low-lying region between two
hills or mountains. Often a volley takes the
form of a V-shape coused by the river flowing
through it. A well-known example in India's
the Chambal Valley in Madhya Pradesh
on
Panificine
Syncine
ins, Fold
19
ere is
ates that
leads to
Block 22. londons of the Earth
face and
and syncline in told mountains
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fig missing so sorry..bro please post it again
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