Unlike the relatively mild interglacials
driven by the tilt, wobble and orbit of the Earth, the PETM fundamentally transformed the planet.
glacials and interglacials
. Lithuanian Quaternary sediments were formed during seven sedimentary cycles (Fig.
This glaciation has seen alternating "glacials" and "interglacials
" in 40,000 to 100,000-year intervals, in which ice sheets advanced and retreated over the Earth's surface, greatly influencing global climate and temperatures.
Over the past two million years, cyclical variations in the amount of solar energy reaching the Earth have caused it to experience a series of long glacial periods separated by short, warmer intervals known as interglacials
. The last glacial period, which ended 12,000 years ago, began 80,000-70,000 years ago.
They found two periods of big population shakeup, both of them occurring in "interglacials
," or periods between ice ages.
As far as the Polish Carpathians are concerned, different pieces of evidence recently summarized by Olszak (2011) indicate that valley incision and deepening typified both glacial-interglacial and glacial-interglacial transitions as well as interglacials
themselves; the rates of uplift throughout the entire Pleistocene remaining constant.
The pollen in SU2, being overwhelmingly derived from trees, refers to their interglacial
origin, but not any typical forest succession or pollen-zonal record of known interglacials
was observed (Fig.
Among the largest climatic changes that Earth has experienced in the past are the transitions from glaciais to warm interglacials
, such as the one within which human society has flourished.
Until now, temperatures during the warm periods between ice ages - known as interglacials
- were thought to be only slightly warmer.
Earth did indeed plunge into an ice age about every 100,000 years, punctuated by warm spells, or interglacials
, that lasted about 10,000 years.
'More recent interglacials
were only 10 000 to 20 000 years long and we're already 10 000 years into the current one.