Black Mats North America Geology

The evidence given by proponents of a bolide or meteorite impact event includes black mats or strata of organic rich soil that have been identified at dozens of clovis culture archaeological sites in north america.

Black mats north america geology. Younger dryas black mats and the rancholabrean termination in north america proceedings of the national academy of sciences 105 18 2008. The micromorphology of younger dryas aged black mats from nevada arizona texas and new mexico quaternary research 85 1 2016. Younger dryas black mat characteristics. Free shipping on many items browse your favorite brands affordable prices.

Wetland deposits at the murray springs paleoindian site in southeastern arizona. Content uploaded by volli kalm. We were certainly excited however to see the consistency of our findings across continents and different time periods. Augite is a standard black or brownish black pyroxene mineral of dark igneous rocks and some high grade metamorphic rocks.

Its crystals and cleavage fragments are nearly rectangular in cross section at angles of 87 and 93 degrees. North america europe and asia and the most likely origin is from a cosmic impact. B at the naco clovis site locality 1b the mammoth bones and artifacts are directly overlain by laminated marls and clay bands that are pond facies of the san pedro valley black mat. Many of us familiar with wetlands and black mats thought that the impact markers might be concentrated by natural processes researcher jeff pigati a geologist at the u s.

Megafaunal remains and clovis age artifacts dating to 13 000 years before present have been found under the dark black mat layer near the middle of the exposure just above the white coro marl marking a time of significant climatic faunal and human transition in north america. Grip master durable all natural tough rubber doormats 29x17 size waterproof boots scraper mats commercial heavy duty indoor outdoor door mat for winter snow low profile easy clean black chevron 4 5 out of 5 stars 1 860. A the black mat at the murray springs clovis site in arizona locality 1a is a black algal mat that blankets the clovis occupation surface. Geological survey told livescience.

Proponents have reported materials including nanodiamonds metallic microspherules carbon spherules magnetic spherules iridium platinum platinum palladium ratios.