Wet conditions are in evidence at the sites of springs and lakes.
Black mat layer clovis.
Some are light gray not all formed by impact.
In the 1950s in his work on the lehner mammoth kill site near hereford arizona emil haury found clovis point artifacts buried by a distinctive black clay layer.
It was then known as lehner swamp soil.
Black mat layer 10 000 10 900 rcybp or 12 900 calibrated years bp.
At murray springs the yd black mat stratum f 2 is generally a 2 to 10 cm thick layer of organic clay.
No mega fauna skeleton or clovis artefact has been found above the impact layer or the black mat he said.
The black mat covers them like a blanket said dr kennett.
The black mat layer not all black mats are black.
Recently the recording of a black mat layer show that destructive wildfires spread across north america as well as the globe.
We ll have to wait for.
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.
Post clovis cultures include folsom plainview agate basin hunter gatherers.
Geological scars can be observed right across the land.
At profile b it covers a clovis age stream channel of sand and gravel stratum f 1 as thin black stringers separated by several centimeters of white marl facies fig.
No megafauna except for bison.
Did a comet impact at hamilton ontario.
The clovis people weren t the only living creatures to disappear.
Younger dryas black mat characteristics.
Markers signs of cosmic collisions in layers of sediment.
Is this evidence of the clovis comet 12 900 years ago at the onset of the younger dryas and the end of the north american megafauna.
Mammals in north america as well as the so called clovis people about.
Mysterious black mats on earth not from outer space.
Non impact ones formed by natural processes non impact black mats formed at different times usually at the end of the ice age between about 14 500 and 11 500 years ago however black mats were more widespread 12 800 years ago.
Proponents have reported materials including nanodiamonds metallic microspherules carbon spherules magnetic spherules iridium platinum platinum palladium ratios.
Most younger dryas yd age black layers or black mats are dark gray to black because of increased organic carbon 0 05 8 compared with strata above and below 6 7 although these layers are not all alike they all represent relatively moist conditions unlike immediately before or after their time of deposition as a result of higher.