altithermal

altithermal

[¦al·tə¦thər·məl]
(geophysics)
Period of high temperature, particularly the postglacial thermal optimum. Also known as hypsithermal.

Altithermal

[¦al·tə¦thər·məl]
(geology)
A dry postglacial interval centered about 5500 years ago during which temperatures were warmer than at present.
References in periodicals archive ?
Archaeological records show us that humans apparently came to live here during the Altithermal period, from 5,500 to 3,000 B.
Fossil bison and artifacts from an early altithermal period arroyo trap in Wyoming.
This may refer to the severe Altithermal drought of 7500-8000 B.
The site is near Lake Huron and likely experienced a lowered ground water table until about 6,000 years ago at the end of the dry Altithermal period, when lake and ground water levels were lower throughout the Midwest.
Desiccation and fracturing were probably heightened in the Till Plains of Ohio during the dry Altithermal period (about 6,000 to 9,000 years ago) when prairies and grasslands of the Plains expanded eastward to central Ohio.
Altithermal archeology and paleoecology at Mustang Springs, on the Southern High Plains of Texas.
During the middle Holocene of 7000-5000 years ago, referred to as the Altithermal, temperatures were considerably warmer than today, paralleling climate now seen in the southeastern Atlantic States.
Apparently there was no warm-moist or dry Altithermal interval in central Texas but rather a pronounced period of drier and possibly warmer conditions starting about 2000 years ago (Holloway et al.
1988) proposed that this climatic event was the Altithermal as originally defined by Antevs (1955).