Thursday, May 07, 2009

The Tanami Desert and fossilised rivers . . .

The Tanami Desert is an ancient landscape of spinifex and many a termite mound. It is hot and to all appearances it seems that not a drop of water could be found. The surface indications are also very misleading at even the first observations. There is plenty of water in fossil rivers, in
deep underground locations. In the days of Gondwana land, not long ago, this land was a virtual muddy swamp. Dripping rainforests, crisscrossing flowing rivers, places where dinosaurs used to tramp. Over millions of years the swamp dried up, sediment in rivers became soil, fine sand. Climatic elements also shaped the vegetation and wild life remaining on this land. Termite mounds provide an even better clue as to what water exists underground. In some places they are very small, where water levels are high, a bigger mound. Providing yet another clue are the juicier than normal desert plants of the Tanami. Profuse low scrub, spinifex grass is taller, thicker, lance-like leaves thrusting to the sky. Vast reservoirs of salt water, undergound, from oil explorations, it is known.Saltier than seawater, would need expensive treatment, for anything to be grown. Along remaining river valleys, groundwater closer to surface than anywhere else.Discoveries of fossilised rocks, Aboriginal paintings of variety of animals tells. Fewer than half of these species survive, due to changing climatic conditions shock. Extinctions were more dramatic and cruel soon after white man introduced grazing stock. Those that disappeared, little- , hare-, nail-tailed -wallabies, bandicoots, kangaroo rat. Never to return, after man, in a little over 150 years, has destroyed their habitat
A meeting in the sky . . .

It's an unusual place, to say the least, a meeting in the sky
whilst hang gliding, attracting me with it's plaintive cry
a wedge-tailed eagle, big, black, circling oh so close
wings spread out and claws extended in attacking pose

Must have been angered by my intrusion, one could tell
narrowly missing in attacking dive, in giant shadow I fell
soaring then to tremendous height, no more than mere speck
so small, realising it's size, it was hard not to loose track

This unexpected encounter with wedge-tail eagle, so high
rekindled a childhood fascination about this bird of prey
as distinctive a part of Australian landscape as our kangaroo
you'l l find it from arid interior to snow covered peaks too

A hunter combining great flying power, extra ordinary grace
magnificent pair of wings, soaring on thermals, high cloud base
fast projectiles when diving, keen eyes, a special purpose tail
claws that are sure to grip, hooked beak, in hunting never fail

Maligned by farmers, killing many lambs, 'twas said in early days
governments encouraged their demise, for a bounty they'd pay
now they are protected, these magnificent acrobatic aerialists
if you've never experienced these birds, a great thrill missed