Public Home > Before 2009 > 2005 > 02 February 05 > Moeraki Boulders

Moeraki Boulders

A little fishing village on the coast south of Oamaru has become famous for a geological wonder on its windswept sands.

The Moeraki Boulders are huge spherical stones that are scattered over the sandy beaches, but they are not like ordinary round boulders that have been shaped by rivers and pounding seas. These boulders are classed as septarian concretions, and were formed in ancient sea floor sediments. They were created by a process similar to the formation of oyster pearls, where layers of material cover a central nucleus or core. For the oyster, this core is an irritating grain of sand. For the boulders, it was a fossil shell, bone fragment, or piece of wood. Lime minerals in the sea accumulated on the core over time, and the concretion grew into perfectly spherical shapes up to three metres in diameter.

Slideshow | Invite
1 Moeraki Boulders
1
1 Moeraki Boulders
Order photo
2 сomments
2 Moeraki Boulders
2
2 Moeraki Boulders
Order photo
2 сomments
3 Moeraki Boulders
3
3 Moeraki Boulders
Order photo
 
4 Moeraki Boulders
4
4 Moeraki Boulders
Order photo
 
5 Moeraki Boulders
5
5 Moeraki Boulders
Order photo
 
6 Moeraki Boulders
6
6 Moeraki Boulders
Order photo
 
7 Moeraki Boulders
7
7 Moeraki Boulders
Order photo
 
8 Moeraki Boulders
8
8 Moeraki Boulders
Order photo
 
9 Moeraki Boulders
9
9 Moeraki Boulders
Order photo
 
10 Moeraki Boulders
10
10 Moeraki Boulders
Order photo
 
11 Moeraki Boulders
11
11 Moeraki Boulders
Order photo
 
12 Moeraki Boulders
12
12 Moeraki Boulders
Order photo
 
13 Moeraki Boulders
13
13 Moeraki Boulders
Order photo
 
14 Moeraki Boulders
14
14 Moeraki Boulders
Order photo
 
15 Moeraki Boulders
15
15 Moeraki Boulders
Order photo
 
16 King of the rocks
16
16 King of the rocks
Order photo
1 сomments
17 Racker on a  Moeraki Boulder
17
17 Racker on a Moeraki Boulder
Order photo
 
18 Moeraki Boulders
18
18 Moeraki Boulders
Order photo
 
18 Racker on a  Moeraki Boulder
19
18 Racker on a Moeraki Boulder
Order photo
 
19 Moeraki Boulders
20
19 Moeraki Boulders
Order photo
2 сomments
20 Moeraki Boulders
21
20 Moeraki Boulders
Order photo
 
21 Moeraki Boulders
22
21 Moeraki Boulders
Order photo
 
22 Moeraki Boulders
23
22 Moeraki Boulders
Order photo
 
23 Moeraki Boulders
24
23 Moeraki Boulders
Order photo
 
24 Moeraki Boulders
25
24 Moeraki Boulders
Order photo
 
25 Moeraki Boulders
26
25 Moeraki Boulders
Order photo
3 сomments
26 Moeraki Boulders
27
26 Moeraki Boulders
Order photo
 
27 Moeraki Boulders
28
27 Moeraki Boulders
Order photo
 
28 Moeraki Boulders
29
28 Moeraki Boulders
Order photo
 
29 Moeraki Boulders
30
29 Moeraki Boulders
Order photo
1 сomments
30 Moeraki Boulders
31
30 Moeraki Boulders
Order photo
 
31 Moeraki Boulders
32
31 Moeraki Boulders
Order photo
 
32 Moeraki Boulders
33
32 Moeraki Boulders
Order photo
 
Moeraki
34
Moeraki
Order photo
1 сomments
nope won't look
35
nope won't look
Order photo
 
She's always looking for stones
36
She's always looking for stones
Order photo
1 сomments
sitting in a boulder
37
sitting in a boulder
Order photo
2 сomments
To the right is Moeraki
38
To the right is Moeraki
Order photo