The exposed bedrock of the Pingualuit Meteorite Crater’s target rock consists of a mélange of metamorphosed, Archean plutonic rocks cut by rare basic dykes (Shoemaker, 1962). The far rim is 3 km in the distance, a challenging hike!My exploration and documentation of craters (presently only on this planet).When I saw the crater for the first time out of the airplane window, I could feel that a colossal and terrifying event had happened here suddenly and with unimaginable force. But, when we passed the tree line I thought, “Well, how are we make a fire now with no wood?” Being a member of the Civil Air Search and Rescue organization, I am well aware of the difficulties that are encountered while searching for missing aircraft. Eric Kujala, a fellow RASC member, contacted me after he had read my original article (above) to inquire about my future exploration plans to the crater. This places the impact before the first major northern hemisphere continental glaciation in the middle Pleistocene (Grieve 1991). The lake within the crater only became visible when we climbed over the flat peak of the rim. We did this on the ground using Eric’s canoe and, from the air using my airplane.I am suggesting that the impact at Pingualuit caused sudden fractures along local fault lines creating these possible slickensides. The economy is based on seal, beluga whale and walrus hunting. The geological marvel is roughly 1,640 ft (500 m) long and 203 ft (62 m) deep. One of its most noteworthy features … Having had Arctic survival training with the military, and now again experiencing this type of desolate terrain, I stated to our Inuit guides how respectful I am toward their ancestors in that they could successfully support and feed a family in this type of geography.I also have the utmost respect for past exploration teams who, day after day for months, walked to the crater rim from their base camp for their research. The only animals we saw were the caribou which roam the crater. Pingualuit Crater, Canada: Image of the Day Item Preview newquebec_l7_2002229.jpg .
Beyond that, the sediments in this crater lake escaped being scoured away by glaciers during the Pleistocene Ice Age.
Nevertheless, Dr. Meen felt quite certain that the morphology of the formation indicated that it was caused by the impact of a huge meteorite and not from volcanic action. This hypothesis has since been proven wrong. about 250nm (roughly two hours) away. Pingualuit impactite contains enrichments in Ir, Ni, Co and Cr suggesting that the impacting body was chondritic in composition with siderophile element enrichment (Grieve 1991). It’s relatively young – only 1.4 million years and almost perfectly circular, 3.4km in diameter with a raised rim up to 163 meters above the lake surface in the central flooded depression. After three years we finally found a way to Pingualuit which we regard as the Shangri-la of impact craters.Lowering their equipment through the ice, scientists reached into the extreme depths of the lake bottom to extract a nine-metre sediment core. Perhaps another time on floats or with large tundra tires!! The lake is 252 meters deep.
In addition to planning in advance for fuel stops, we had more than the recommended amount of survival gear on board. At the time I documented geologic “striations” in some rocks that were not shatter cones. The smallest observable crater one can see on the Moon with the naked eye is larger than Pingualuit. Caribou tracks were visible all over the place, but not a caribou to be seen. Previously called – New Quebec Crater, Ungava Crater & Chubb Crater. The high latitude of the area limits vegetation, so thick, lush forests do not flourish in this region. It is a unique natural site that I hope visitors in the future will appreciate. I saw snowgeese and other birds I couldn’t identify. Without this “fuel stop” we would not have made it back to our point of departure, Kuujjuaq, as aviation fuel was not available north of Kuujjuaq. Not only did we precisely follow these flight plans, we made frequent position reports to the “high flying” aircraft far overhead.There are many craters documented on this site. Several small boats with outboard engines were pulled up on the shore. away. Parc national des Pingualuit . Our Inuit guides were extremely helpful in showing us the various unique geological features of the crater.
These craters all produce negative gravity fields due to the low density fragmental rock underlying them and the expanded crustal rocks forming their rims (Innes 1964).When we initially approached the Pingualuit Crater on my aerial exploration, the structure first appeared as a small hill on the horizon.
In fact, the crater's name derives from an Inuktitut term for cold-weather-induced skin blemishes.
The Arctic Char in the lake are totally isolated from the local lakes and have responded to the consequent malnutrition by evolving oversized heads and thin bodies.
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