reference for jewellery in science
Many boundaries between geologic eras are marked by physical golden spikes.
Cover image: Anthropocene spike, a golden spike driven into a rockface to mark the beginning of the Anthropocene geological era. © Victoria and Albert Museum, London
Articles:
Does the Anthropocene, the Age of Humans, Deserve a Golden Spike? article, The New York Times
Where in the World Is the Anthropocene? article
Driving the Golden Spike, article, e-flux
Many boundaries in geological history are demarcated physically with a golden spike in a particular rock layer, as here near Pueblo, Colo. (GSSP is the acronym for Global Stratotype Section and Point.) Credit Brad Sageman, Northwestern University
