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Geologic temperature record
This article is devoted to
temperature changes in
Earth's environment as
determined from geologic
evidence on multi-million to
billion (109) year time
scales. The last 3 million
... > full story
Little Ice Age
The Little Ice Age (LIA) was
a period of cooling lasting
approximately from the 14th
to the mid-19th centuries,
although there is no
generally agreed start or
end date: some confine the
period to 1550-1850. This
... > full story
Paleoclimatology
Paleoclimatology is the
study of climate change
taken on the scale of the
entire history of the earth.
Glaciers are a widely
employed instrument in
paleoclimatology. The ice in
glaciers has hardened into
... > full story
Sequence stratigraphy
Sequence stratigraphy is a
relatively new branch of
geology that attempts to
link prehistoric sea-level
changes to sedimentary
deposits.
The 'sequence' part of the
name refers to cyclic
... > full story
Browse Reference Articles
1 to 10 of 140 articles
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Temperature record of the past 1000 years
The temperature record of the past 1000 years describes the reconstruction of temperature for the last 1000 years on the Northern Hemisphere. A reconstruction is needed because a reliable surface ... > more -
Extinction event
An extinction event (also extinction-level event, ELE) occurs when a large number of species die out in a relatively short period of time. Since life began on Earth, a number of major mass ... > more -
Permian-Triassic extinction event
The Permian-Triassic (P-T or PT) extinction event, sometimes informally called the Great Dying, was an extinction event that occurred approximately 251.0 million years ago (mya), forming the boundary ... > more -
Radiocarbon dating
Radiocarbon dating is a radiometric dating method that uses the naturally occurring isotope carbon-14 to determine the age of carbonaceous materials up to ca 60,000 years. Within archaeology it is ... > more -
Stone tool
A stone tool is, in the most general sense, any tool made of stone. Although stone-tool-dependent cultures exist even today, most stone tools are associated with prehistoric societies that no longer ... > more -
Supervolcano
A supervolcano refers to a volcano that produces the largest and most voluminous kinds of eruption on Earth. The actual explosivity of these eruptions varies, but the sheer volume of extruded magma ... > more -
Seismic wave
A seismic wave is a wave that travels through the Earth, most often as the result of a tectonic earthquake, sometimes from an explosion. There are two types of seismic wave, namely, 'body wave' and ... > more
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