posted on Sep, 23 2012 @ 03:57 AM
reply to post by Loopdaloop
Actually, the Kaimanawa 'wall' is nothing of the sort. It IS, however, a good example of Ignimbrite:
A Geologist's Opinion
Because the issue was unlikely to settle down or be resolved to most people's satisfaction without further research, Dr Peter Wood, a geologist with
a specialist knowledge of local ignimbrites employed by the Institute of Geological and Nuclear Sciences at Wairakei, was commissioned by the
Department of Conservation's Tongariro Conservancy to give an independent professional opinion on the "wall". By the time Dr Wood visited the site
on Monday 13 May, a much larger area of the outcrop had been exposed through an illicit excavation in front of the formation by persons unknown during
the weekend. I quote from his report (Wood 1996):
In my opinion the so-called "Kaimanawa Wall" in the Kaimanawa Forest Park is a natural rock formation. It is an outcrop of jointed Rangitaiki
ignimbrite, a 330,000 year old volcanic rock that is common in the Taupo Volcanic Zone.
The regular block shapes are produced by natural fractures in the rock. These fractures (joints) were initially produced when the hot ignimbrite
cooled and contracted after it had flowed into place during the eruption. Near vertical and horizontal joints are common in welded ignimbrites of this
type. The forces of erosion, gravity, earthquakes and tree growth (roots) probably have all contributed to the movement and displacement of the blocks
The apparent regularity and "artificial" aspect of the jointing is spurious. Most of the joints are not cuboidal. The eye is deceived mainly by one
prominent horizontal joint which can be traced almost continuously along the outcrop into an area (recently excavated) where it is but one of an
interlocking series of irregular joints. Even where the joints are most "block-like", detailed inspection of the joint surfaces showed they were
natural, with small matching irregularities in opposing surfaces which would not be produced by artificial block laying.
It is my opinion, as well, that it is a geologic feature and given the geology of the region it is not surprising that one would find outcrops such as
this around the area, at least where they have been exposed. My geologist colleagues - volcanologists - who have been to and studied this area and
looked at the wall agree that it is a natural feature. Flights of fancy are all very well, but proper research and investigation involves going there
and 'checking it out', with a geologist's eye, not a conspiracist's eye, for in this case Occam's Razor does indeed apply.