It is the time line, as well as we know it, for Earth's evolution. Each period is defined by a major geological or biological event. The first geologic time scale was proposed by British geologist Arthur Holmes (1890-1965) in 1913
Precambrian time (4567 to 542 mya)
· Hadean Eon (4567 to 3800 mya)
· Archaeon Eon (3800 to 2500 mya)
· Proterozoic Eon (2500 to 542 mya)
Phanerozoic Eon (542 mya to present)
· Paleozoic Era (542 mya to 251 mya)
o Cambrian Period (542 to 488.3 mya)
o Tommotion Stage (534 to 530 mya)
o Ordovician Period (488.3 to 443.7 mya)
o Silurian Period (443.7 to 416 mya)
o Devonian Period (416 to 359.2 mya)
o Carboniferous Period (359.2 to 299 mya)
o Mississippian Epoch (359.2 to 318.1 mya)
o Pennsylvanian Epoch (318.1 to 299 mya)
o Permian Period (299 to 251 mya)
· Mesozoic Era (251 to 65.5 mya)
o Triassic Period (251 to 199.6 mya)
o Jurassic Period (199.6 to 145.5 mya)
o Cretaceous Period (145.5 to 65.5 mya)
· Cenozoic Era (65.5 mya to today)
o Paleogene Period (65.5 to 23. 03 mya)
o Tertiary Period (65.5 to 2.58 mya)
o Paleocene Epoch (65.5 to 54.8 mya)
o Eocene Epoch (54.8 to 33.7 mya)
o Oligocene Epoch (33.7 to 23.03 mya)
· Neogene Period (23.03 mya to today)
o Miocene Epoch (23.03 to 5.3 mya)
o Pliocene Epoch (5.3 to 2.58 mya)
o Quaternary Period (2.58 mya to today)
o Pleistocent Epoch (2.58 mya to 11,400 yrs ago)
o Holocene Epoch (11,400 yrs ago to today)
The geological time scale organizes a long period of time.
IT encompasses all of the geological time period that have happened since the begin of time
For most geological processes, 100 years is a very short time, so to answer your question, no.
Geological time starts at the Big bang. For example, if a scientist says that a 1000years is not a long time in "geological time" they simply mean on a timescale a thousand years in nothing
James Croll has written: 'Climate and time in their geological relations' -- subject(s): Geological time, Glacial epoch, Climatology, Ocean currents 'Stellar evolution and its relations to geological time' -- subject(s): Cosmogony
One million years on the geological time scale represents one million years of Earth's history. It is a unit of time used to measure and discuss long-term geological events and processes.
The Precambrian.
It is an epoch.
the neozoic era
Periods
false
HI there :))))0