ICELAND IN PICTURES GAYLE HANSSEN GEOLOGICAL SOCEITY OF ZIMBABWE - - PowerPoint PPT Presentation

▶
iceland in pictures
SMART_READER_LITE
LIVE PREVIEW

ICELAND IN PICTURES GAYLE HANSSEN GEOLOGICAL SOCEITY OF ZIMBABWE - - PowerPoint PPT Presentation

Feb 14, 2023 624 likes •1.23k views

ICELAND IN PICTURES GAYLE HANSSEN GEOLOGICAL SOCEITY OF ZIMBABWE 2018 AGM PRESENTATION Our trip in 2012 just using an iPhone and google maps! Iceland is one of 2 places where continental spreading can be observed on dry land

slide-1
SLIDE 1

GAYLE HANSSEN

GEOLOGICAL SOCEITY OF ZIMBABWE

2018 AGM PRESENTATION

ICELAND IN PICTURES

slide-2
SLIDE 2

Our trip in 2012 – just using an iPhone

and google maps!

Iceland is one of 2 places where

continental spreading can be observed

  • n dry land

Ethiopia is the other Situated on the Mid Atlantic Ridge

slide-3
SLIDE 3

UK NORWAY CANADA GREENLAND ICELAND

Faroe Islands

ICELAND ON THE MID ATLANTIC RIDGE

slide-4
SLIDE 4
slide-5
SLIDE 5

ICELAND TECTONICS

slide-6
SLIDE 6

ICELAND GEOLOGY

slide-7
SLIDE 7
slide-8
SLIDE 8

350,000 people – 123,000 in Reykjavik Nordic Sheep, fishing, tourism – and geologists! 874 AD first settlement 1783 – eruption of Laki, killed 9,000

people and 80% of livestock

1944 independence from Denmark 2008 financial crisis

slide-9
SLIDE 9

Rifting Waterfalls Geysers Volcanoes Hot Springs Mud Slides Icebergs Whales

slide-10
SLIDE 10

REYKJAVIK

slide-11
SLIDE 11

REYKJAVIK

slide-12
SLIDE 12

GULLFOSS SELJALANDSFOSS SKOGAFOSS

slide-13
SLIDE 13

GULLFOSS

slide-14
SLIDE 14

SKOGAFOSS

slide-15
SLIDE 15

SELJALANDSFOSS

slide-16
SLIDE 16

GEYSIR HVERIR, Myvatn

slide-17
SLIDE 17
slide-18
SLIDE 18
slide-19
SLIDE 19
slide-20
SLIDE 20
slide-21
SLIDE 21
slide-22
SLIDE 22
slide-23
SLIDE 23
slide-24
SLIDE 24

Alteration

slide-25
SLIDE 25
slide-26
SLIDE 26

GRINDAVIK

Mineralisation / Alteration

slide-27
SLIDE 27

HVERIR, Myvatn

slide-28
SLIDE 28

Thingvellir KRAFLA, Myvatn

slide-29
SLIDE 29
slide-30
SLIDE 30

Thingvellir

slide-31
SLIDE 31

Rifting

slide-32
SLIDE 32

Took place from 1975 to 1984 and

extruded lava

19km long graben Subsided 2-3m Magma sits 3-7km below this rift zone

slide-33
SLIDE 33
slide-34
SLIDE 34
slide-35
SLIDE 35

KAFLA, Myvatn

slide-36
SLIDE 36

EUROPE NORTH AMERICA

Looking North

slide-37
SLIDE 37

Katla – last erupted in 1918 Erupted 27 times from 930 – 1918 Every 13-95 years When will be the next one? HVERFJALL, Myvatn 2,500 years ago

slide-38
SLIDE 38

KATLA

1918 eruption JOKULHLAUP – volcanic flow under the glacier

ICE on top of the volcano

slide-39
SLIDE 39

KATLA

slide-40
SLIDE 40

HVERFJALL, Myvatn 2,500 years ago

slide-41
SLIDE 41

Collapsed lava tubes and pipes from about 2,500 years ago in the Myvatn region, close to Hverfjall

slide-42
SLIDE 42

Columnar Jointing

slide-43
SLIDE 43

BLUE LAGOON Myvatn EYJAFALLAJOKULL

slide-44
SLIDE 44

BLUE LAGOON

slide-45
SLIDE 45

EYJAFALLAJOKULL

slide-46
SLIDE 46

Myvatn

slide-47
SLIDE 47

VATNAJOKULL – largest in Europe

slide-48
SLIDE 48
slide-49
SLIDE 49

JOKULSARLON

slide-50
SLIDE 50

JOKULSARLON

slide-51
SLIDE 51

JOKULSARLON

slide-52
SLIDE 52

SUDAVIK

slide-53
SLIDE 53

Myvatn

slide-54
SLIDE 54

GRINAVIK HUSAVIK ORCA

slide-55
SLIDE 55

Myvatn / Krafla

slide-56
SLIDE 56
slide-57
SLIDE 57

AKUREYRI

slide-58
SLIDE 58

Certainly a place worth visiting if you are a geologist – and I would LOVE to go back in the summer time when the central areas are more accessible