Older Peron

The Older Peron transgression was an unusually warm climate of the Holocene section, which was accompanied by an increased sea level. The transgression continued in the Atlantic period 5000-4900 BC and lasted until 4100 BC

Definition

The Older Peron transgression, also known as Older Peron event was defined by the 1961 working on sea level fluctuations RW Fairbridge and named after the Cape Peron in Western Australia. At the cape, there is a striking bay terrace, which was investigated climatologically.

Description

The Older Peron transgression was a period of generally mild climate, the very favored increased plant growth. The rather warm temperatures caused a retreat of the glaciers and ice sheets of the cryosphere and thus a rise in sea levels worldwide. Global sea level was as much as 2.5 to 4 meters higher than the average of the 20th century. The increased sea level remained for several centuries, leaving behind several typical coastal surf terraces.

In the bristlecone pines chronology, which dates back to 6700 BC, the best growth years of longevity jaw dropped at the beginning of the elderly Peron transgression to the year 4850 BC

The Older Peron transgression was the first of several transgressions during the middle Holocene. There followed the Younger Peron transgression, the transgression Abrolhos and Rottnest Transgression. The Younger Peron transgression took place in the period 4000-3400 BC, reaching a sea, which was 3 meters above the level of the 20th century. The Abrolhos transgression ( period 2600 to 2100 BC) was still 1.5 meters and the subsequent Rottnest Transgression ( period 1600-1000 BC) even 1 meter above sea level.

The mild climate during the older Peron transgression or the Neolithic Subpluvials is occasionally brought to the Golden Age or the Garden of Eden in conjunction.