PPT: Himalayas- 1 Notes | EduRev

Crash Course for UPSC aspirants

UPSC : PPT: Himalayas- 1 Notes | EduRev

 Page 1


GEOGRAPHY
CRASH COURSE
GEOGRAPHY
CRASH COURSE
CAPSTONE IAS LEARNING
Page 2


GEOGRAPHY
CRASH COURSE
GEOGRAPHY
CRASH COURSE
CAPSTONE IAS LEARNING
Page 3


GEOGRAPHY
CRASH COURSE
GEOGRAPHY
CRASH COURSE
CAPSTONE IAS LEARNING
Formation of the Himalayans
 The Himalayas are the youngest mountain chain
 Himalayan mountains have come out of a
the Tethys Sea and that the uplift has taken place in different phases
 The Himalayas are known to be youngfold
these have been formed relatively recently in the earth's history,
compared to older mountain ranges like the
Appalachian in the USA.
 They are known as fold mountains because the mountains extend for
2500 km in length in a series of parallel ridges or folds.
Formation of the Himalayans
youngest mountain chain in the world.
Himalayan mountains have come out of a great geosyncline called
and that the uplift has taken place in different phases.
youngfold mountains. Young, because
these have been formed relatively recently in the earth's history,
compared to older mountain ranges like the Aravallis in India, and the
are known as fold mountains because the mountains extend for
2500 km in length in a series of parallel ridges or folds.
Page 4


GEOGRAPHY
CRASH COURSE
GEOGRAPHY
CRASH COURSE
CAPSTONE IAS LEARNING
Formation of the Himalayans
 The Himalayas are the youngest mountain chain
 Himalayan mountains have come out of a
the Tethys Sea and that the uplift has taken place in different phases
 The Himalayas are known to be youngfold
these have been formed relatively recently in the earth's history,
compared to older mountain ranges like the
Appalachian in the USA.
 They are known as fold mountains because the mountains extend for
2500 km in length in a series of parallel ridges or folds.
Formation of the Himalayans
youngest mountain chain in the world.
Himalayan mountains have come out of a great geosyncline called
and that the uplift has taken place in different phases.
youngfold mountains. Young, because
these have been formed relatively recently in the earth's history,
compared to older mountain ranges like the Aravallis in India, and the
are known as fold mountains because the mountains extend for
2500 km in length in a series of parallel ridges or folds.
Page 5


GEOGRAPHY
CRASH COURSE
GEOGRAPHY
CRASH COURSE
CAPSTONE IAS LEARNING
Formation of the Himalayans
 The Himalayas are the youngest mountain chain
 Himalayan mountains have come out of a
the Tethys Sea and that the uplift has taken place in different phases
 The Himalayas are known to be youngfold
these have been formed relatively recently in the earth's history,
compared to older mountain ranges like the
Appalachian in the USA.
 They are known as fold mountains because the mountains extend for
2500 km in length in a series of parallel ridges or folds.
Formation of the Himalayans
youngest mountain chain in the world.
Himalayan mountains have come out of a great geosyncline called
and that the uplift has taken place in different phases.
youngfold mountains. Young, because
these have been formed relatively recently in the earth's history,
compared to older mountain ranges like the Aravallis in India, and the
are known as fold mountains because the mountains extend for
2500 km in length in a series of parallel ridges or folds.
 There were many rivers which were flowing into the Tethys Sea
 Sediments were brought by these rivers and were deposited on the
floor of the Tethys Sea.
 All of the Tethys Ocean floors were not completely
the thick sediments on the Indian margin of the ocean were worn out
and accreted onto the Eurasian continent in what is known as an
accretionary wedge.
 These scraped-off sediments from the Himalayan mountain range. The
rate of northward drift of the Indian continental plate slowed to around
4-6 cm per year.
 This slowdown is interpreted to mark the beginning of the collision
between the Eurasian and Indian continental plates, the closing of the
former Tethys Ocean, and the initiation of Himalayan uplift.
There were many rivers which were flowing into the Tethys Sea
were brought by these rivers and were deposited on the
of the Tethys Ocean floors were not completely subducted; most of
the thick sediments on the Indian margin of the ocean were worn out
and accreted onto the Eurasian continent in what is known as an
off sediments from the Himalayan mountain range. The
rate of northward drift of the Indian continental plate slowed to around
slowdown is interpreted to mark the beginning of the collision
between the Eurasian and Indian continental plates, the closing of the
former Tethys Ocean, and the initiation of Himalayan uplift.
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