The geological construct of a glacier is well understood. Examples abound across the great mountain ranges, and vast ice sheets cover Greenland and the Antarctic.. Glaciers generate two well-know signatures - they leave moraines behind when they retreat, and they scar and scratch the earth as they lumber along. We suggest that in certain instances, glaciation has been invoked to explain manifestations of Perigee: Zero events. One of the most-oft noted supportive detail of the Wisconsin glaciation was that the sea levels rose over 100 meters in a short 400 year time frame. The PZ hypothesis suggests that this sea level increase - if it indeed did occur - could have been delivered by the accretion of the incoming hydrated cosmic bodies.

The Wisconsin glaciation is well understood, having been in effect just prior to the Holocene era. Vast deposits of gravels, sand and boulders are considered to have been distributed by the series of Glacial advances and retreats. In Ohio and Illinois, the depths of glacial till that is popularly ascribed to the Wisconsin glaciation extends to hundreds of feet in depth across thousands of square miles - the entire state of Illinois, for example.

The Wisconsin glaciation is in question herein primarily because there were no elevation differentials necessary to generate the gravity -driven flow required to create the evidenced amount of till. Our analysis suggest that several large Perigee: Zero impacts actually created the debris fields as ejecta outflow.

The other common marker of glaciation is the existence of long scratches in the bedrock. Again, many good examples of this are found across the globe. In Africa, for instance, the Sahara desert is crisis-crossed with such scratches. These often run for hundreds of kilometers in a geometrically straight line. Glaciation is considered by the experts as the causal agent, and the date of the events are considered to be 450 MILLION years ago. Our emphasis. We humbly suggest that after 450 Million years, any evidentiary scratches from boulders dragged across Africa for hundreds of miles would be eroded away, or covered in thousands of feet of overburden. Granted, overburden can be removed, but it is hardly logical to suggest that the self-same horizon of scratches has simultaneously been uncovered across thousands of square kilometers. Until Perigee: Zero, glaciation may represent the best answer, but it is far from a simple answer given the intervening eons.

Let us look at some of the proposed Perigee: Zero scratches. As trench craters cross into or out of the oceans and cross land, a near-perfect arc forms at the sea level line. We have seen several areas which have remained arid enough as to allow the scratches generated by the passing comet body and it's attendant debris storm to remain visible to the remote sensing camera. First we present a satellite photograph of the damage seen across the trench for the Bahia Sebastian Vizcaino "ramp" area. The graphic is linked to a large 1500x1500 pixel version.

Bahia Sebastian Vizcaino "ramp"

The ramp "skid mark" is apparent to us.

Bahia Sebastian Vizcaino "ramp" detail.

We maintain that the significant length of these perfectly-linear and parallel geologic markings are indicative of a significant geological force. This area of the Baja is unlikely to have ever been glaciated.

Several authors have questioned the actual existence of the Wisconsin glaciation. They offer evidence that many inconsistencies exists, such as the lack of ice in Siberia in spite of a general climate 20c lower than, say, New York City.