Originally posted by Thestargateisreal
p.s. Even if Aluminum was in a meteorite it has such a low melting point that any of it present would be melted before it ever touched the earth.

The Sudbury Basin, also known as Sudbury Structure or the Sudbury Nickel Irruptive, is a major geologic structure in Ontario, Canada. It is the second-largest known impact crater or astrobleme on Earth, as well as one of the oldest

Even as late as the mid-1970s, geologists were not fully certain of the Sudbury basin having meteor origins. The educational television programme "Planet of Man"—created for Canadian universities to use in introductory geology classes—mooted the possible volcanic origins of the Sudbury geological structures [1]. Considering how old the evidence is for a meteor impact, some 1.8 billions of years of weathering and other geological processes made it difficult to prove with 1970s era technology that a meteor was the cause of the Sudbury geological structures. Since then an ash and conglomerate layer has been found associated with the impact event and stressed rock formations have been fully mapped. The cause of the ongoing difficulty with proof of the meteor event was that the region was volcanically active around the same time as the impact—and some weathered volcanic structures can look like meteor collision structures given the right conditions.

Originally posted by Ross 54
,,, It seems that if meteoric derived metals were distributed this way, it would have frequently been noticed to skew the normal isotope ratios on Earth. Apparently, these are actually fairly consistent; and are expected to vary much less than this.

What he found was a silvery metal that looked aluminum. This was strange because there were no indications of any sort of aluminum objects in the area.

He also found some aluminum buttons that appear to be the type used on military fatigues in the later 40’s. If that is the case it demonstrates that the military was in the area.

It turned out to be an aluminum, silicon, manganese, copper alloy.

Aluminum alloys are a mixture of aluminum and a variety of other metals. Different metals, when added to the base aluminum impart enhanced properties to the aluminum, such as enhanced corrosion resistance, better formability, greater strength, and/or other beneficial properties, in a wide range of permutations and combinations.
There are dozens of aluminum alloys in fairly common use in the US , and countless others overseas.

The alloying elements include silicone, manganese, magnesium, copper, zinc, nickel chromium, and titanium. In a few instances, one can find the use of lead, bismuth, vanadium, chromium, zirconium, iron, and/or boron. Each will change not only the various properties of the aluminum compound, but its density, as well.
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The 2000 Series of alloys:


The 2000 series of alloys are a set of “hard alloys”. They are probably most commonly used in aircraft and military types of applications. Other 2000 series uses include sheet and plate, armor plate, wire, rod, bar, extrusions, tube, and forgings.

Copper is the primary alloying element of this group, but many contain noticeable quantities of silicone, manganese, magnesium, nickel, and/or titanium.

They tend towards high strength, but require solution heat treating to achieve their maximum properties and/or artificial aging. After heat treating, they may approach the properties of mild steel. Good machinability is a benefit offered in this series, but it doesn’t offer the best of corrosion resistance. 2024 is probably the widest used and best known aircraft alloy.