lec 5 - delphi 1academic.brooklyn.cuny.edu/geology/powell/courses/cc3_32/lec 5 - … · the oracle...

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1 The Oracle of Delphi The Oracle of Delphi Geological Perspectives Geological Perspectives CC 3.32, Lecture 5 CC 3.32, Lecture 5 Phlegraean Phlegraean Fields and Mythology Fields and Mythology Lake Lake Avernus Avernus (from Greek (from Greek aornos aornos = = birdless birdless ) ) Lake Lake Nyos Nyos , Cameroon , Cameroon Lake Lake Nyos Nyos lies in the crater of a lies in the crater of a volcano that formed in an volcano that formed in an explosive eruption 400 years ago explosive eruption 400 years ago August 21, 1986 lake August 21, 1986 lake Nyos Nyos emitted a cubic kilometer of emitted a cubic kilometer of carbon dioxide carbon dioxide 1,800 people were suffocated 1,800 people were suffocated

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Page 1: Lec 5 - Delphi 1academic.brooklyn.cuny.edu/geology/powell/courses/cc3_32/Lec 5 - … · The Oracle of Delphi Geological Perspectives CC 3.32, Lecture 5 Phlegraean Fields and Mythology

1

The Oracle of Delphi

The Oracle of Delphi

Geological Perspectives

Geological Perspectives

CC 3.32, Lecture 5

CC 3.32, Lecture 5

Phlegraean

PhlegraeanFields and Mythology

Fields and Mythology

Lake

Lake Avernus

Avernus

(from Greek

(from Greek aornos

aornos= = birdless

birdless))

Lake

Lake Nyos

Nyos, Cameroon

, Cameroon

��Lake

Lake Nyos

Nyoslies in the crater of a

lies in the crater of a

volcano that form

ed in an

volcano that form

ed in an

explosive eruption 400 years ago

explosive eruption 400 years ago

��August 21, 1986 lake

August 21, 1986 lake Nyos

Nyos

emitted a cubic kilometer of

emitted a cubic kilometer of

carbon dioxide

carbon dioxide

��1,800 people were suffocated

1,800 people were suffocated

Page 2: Lec 5 - Delphi 1academic.brooklyn.cuny.edu/geology/powell/courses/cc3_32/Lec 5 - … · The Oracle of Delphi Geological Perspectives CC 3.32, Lecture 5 Phlegraean Fields and Mythology

2

Degassing Lake

Degassing Lake Nyos

Nyos

The Sybil of

The Sybil of Cuma

Cuma

��Priestess of Apollo at

Priestess of Apollo at

Greek settlement of

Greek settlement of

Cumae

Cumae

��She wrote her

She wrote her

prophesies on oak

prophesies on oak

leaves which she

leaves which she

arranged at the

arranged at the

entrance to her cave

entrance to her cave

��In Virgil

In Virgil’’ s s Aeneid

Aeneid

the

the

Sybil guided Aeneas

Sybil guided Aeneas

to the underw

orld

to the underw

orld

Map of the

Map of the Mediterannean

Mediterannean

Page 3: Lec 5 - Delphi 1academic.brooklyn.cuny.edu/geology/powell/courses/cc3_32/Lec 5 - … · The Oracle of Delphi Geological Perspectives CC 3.32, Lecture 5 Phlegraean Fields and Mythology

3

Location of Delphi

Location of Delphi

The Oracle of Delphi

The Oracle of Delphi

Sanctuary of Apollo

Sanctuary of Apollo

Delphi: Intersection of Faults

Delphi: Intersection of Faults

Page 4: Lec 5 - Delphi 1academic.brooklyn.cuny.edu/geology/powell/courses/cc3_32/Lec 5 - … · The Oracle of Delphi Geological Perspectives CC 3.32, Lecture 5 Phlegraean Fields and Mythology

4

Fluid Flow on Faults

Fluid Flow on Faults

Earthquakes of the Mediterranean

Earthquakes of the Mediterranean

Tectonic Plates

Tectonic Plates

Plate Motions in the Eastern

Plate Motions in the Eastern

Mediterranean

Mediterranean

Page 5: Lec 5 - Delphi 1academic.brooklyn.cuny.edu/geology/powell/courses/cc3_32/Lec 5 - … · The Oracle of Delphi Geological Perspectives CC 3.32, Lecture 5 Phlegraean Fields and Mythology

5

Plate Motions in the Eastern

Plate Motions in the Eastern

Mediterranean

Mediterranean

Plate Motions in the Eastern

Plate Motions in the Eastern

Mediterranean

Mediterranean

Rift Zones of the

Rift Zones of the

Peloponnese Region

Peloponnese Region