Australia
Australia was formed by a whole lot of meteor impacts. The image above shows some of the biggest ones.
The
east coast of Austrailia was formed by a large impact with a
diameter of 1625 kilometers. Just north of that another impact of
1690 kilometers diameter gave form to the Great Barrier Reef.
The
southern coast shows four obvious impact sites. The large double
circle is from the impact that formed the Great Austrailian Bight.
The smaller double circle formed the water bodies around Adalaide.
This
is the hill country just north of central Australia. Studying
these seismic circles gives a good indication as to how these
landforms came to be.
The kmz file for these
circles is here. This
file will open in Google Earth. If you do not have Google
Earth, get
it here.
Once
loaded into Google Earth you can examine the circles closely. We
are looking for formations of many kinds that closely follow the
circle line. Clicking on the yellow spots will take you to a good
viewing distance for that formation. This kmz file only describes
the most obvious meteor impacts.
If you wish to find
your very own meteor impact, you first study the geography until
you find a circular arc. It could be large or small. In the image
above you can see large arcs and if you look very hard, you can
see some small ones too. Once you find one, use the circle tool
and fit a circle as best you can to that arc. If you do that
correctly, you will be able to find other formations around the
circle that also define the circle. No fewer than three
significant points are acceptable, as you must be able to convince
someone else, that has no idea what you are talking about, that
the points you have represent a full circle.
How to
narrow in to find the exact center of impact will be described on
another page.
Comments,
information, discussion, e-mail me
here:
twest@geoledgers.com
Index
of Impact Sites
© 2021 Terry Westerman