an emergent
website design
by
peter jay stein, md, ma
atmosphere
asthenosphere
lithosphere
regolith
biosphere
hydrosphere
This 54 page synopsis of the evolution
of the Earth, the origin and progression of life, and the
emergence of humans as descendants of the hominin lineage, divides the last 4.57 billion years into progressively overlapping, imagistic, time segments, to outline our place in biological existence.
magnetosphere
ionosphere
FORTY-NINE
Emergent Holocene Epoch 11,700 ya - 1750 CE
Features of the Holocene epoch 11,700 ya - 1750 CE:
4) Stone tools recede, replaced by bronze tools (copper and tin alloy), beginning 7,000 - 9,000 years bce.
5) The development of agriculture allows for stationary habitats, beginning around
12,000 years bce.
2) The most recent interval of Earth's history, beginning 11,700 years prior to 2K (2,000 A.D. or C.E.), designated as part of the Quaternary period, along with the Pleistocene epoch.
3) glacial and interglacial intervals strongly influence Earth's climate, throughout the Pleistocene and Holocene epochs.
1) The first geologic interval (GSSP = Global Stratotype Section & Point) to be defined by ice core samples.