Clovis Black Mat

The clovis people weren t the only living creatures to disappear.

Clovis black mat. Speaking of the black mat found in central mexico firestone said boslough is correct that there are other black mats but these are dated to 12 900 years ago at the time of impact. Evidence of catastrophic flooding now exists that swept across vast parts of north america. Most are just below the black mat at yellow dashed line. Proponents have reported materials including nanodiamonds metallic microspherules carbon spherules magnetic spherules iridium platinum platinum palladium ratios.

The black mat at murray springs clovis site left. Numerous megafaunal fossils have been found directly in contact with the black mat fig. Post clovis cultures include folsom plainview agate basin hunter gatherers. Stratigraphically there are no clovis sites above the black mat.

Black mats as described here appear to be stratigraphic manifestations of younger dryas climate and indicate a rise in local water tables apparently because of more effective recharge as a result of cooler climate. The yd black mat covers the clovis age landscape on which the last skeletal remnants of rancholabrean megafauna occur. No megafauna except for bison. 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.

However in a recent study erin harris parks found that black mats are caused by local environmental changes specifically the moister climate of the younger dryas yd period. Recently the recording of a black mat layer show that destructive wildfires spread across north america as well as the globe. Recent mass extinction the one that wiped out most of the large mammals in north america as well as the so called clovis people about. Clovis points are not found above black mat ydb glass like carbon g kg.

The murray springs black mat covers and preserves the clovis age landscape. Black mat these images show the association by depth between the black mat and clovis points melted spherules and glass like carbon. Wet conditions are in evidence at the sites of springs and lakes. The clovis occupation surface at murray springs is a sharp stratigraphic contact upon which rests black organic clay the black mat that is believed to result from an algal bloom.

She noted that although black mats are relatively common throughout the environmental history of our. Black mat layer 10 000 10 900 rcybp or 12 900 calibrated years bp. An example of the black mat at the murray springs clovis site is shown in figure 1.