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Brukkaros - into the caldera

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Section of south wall gap

The south-wall gap

Brukkaros caldera floor looking west

The caldera floor looking west

Brukkaros - The South Wall Gap

The south-wall-gap

 
 

The caldera floor is about 2km in diameter. It is strewn with rock debris.  It is a remote and quiet world that not many people have trodden. It is possibly the nearest opportunity that you will ever have to stand on the floor of a volcano like crater. There was a time, following the initial formation, that rain-water formed a lake in the caldera. The ground water seeped into the rock fissures and when deep enough in the earth came into contact with the magma heated rock and thus caused hot spring waters to bubble to the surface. These waters carried with them silica solutions that solidified into hard rock known as Breccia that eventually formed a thick coating on part of the floor of the crater. The overrun through the lowest point of the South Wall Gap over time formed what could be referred to as a '"Rock Waterfall ".

 

 
Brukkaros boulder strewn caldera floor

Boulder strewn floor

Brukkaros rocks with quartz crystals

Interesting rocks

Brukkaros showing the rock watefall formed by silicate deposits

The rock waterfall

Lip of the rock waterfall at Brukkaros

Upper lip of the rock 'waterfall'

 

 

There are a variety of rock types that can be found in and around the crater. If you are interest in geology and scout around you will see a variety rock types and deposits. There is a scattering of hardy trees and desert plants in an near to the dry river bed, and you will see lonely quiver trees clinging to the inner walls of the caldera that provide welcome nesting sites for social weaver birds. You will also see several dead quiver trees.

 

 
Social Weaver Bird Colony nests in Quiver Tree

Social Weaver Colony

Brukkaros caldera with dead quiver tree 1

Dead Quiver Tree

Brukkaros caldera with dead quiver tree 2

Dead Quiver Tree

Brukkaros flower 1

Brukkaros flower

Brukkaros flower 2

Brukkaros flower

 
 

If your visit is within a few days of summer shower you'll find hardy desert plants in bloom, and you'll wonder as to how these can survive dormant for most of the year and then suddenly and briefly come into full flower..

 

Flowering plants developed during the Cretaceous Period and the Brukkaros Crater has provided us with the oldest angiospermous flower fossil ever found in Namibia, having 5 petals and a diameter of 12mm.

 

Acknowledgements and further reading: G1, G2, P1

 

Brukkaros 1

 

 

Local Area Attractions

 

 

Giant's Playground     ► Quiver Tree Forest     ►  Mesosaurus Fossils    ►   Keetmanshoop   ►  Nearby Accommodation

 

 
   

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