Easter, Plates, Kenny Lienhard

The Plate in detail

Easter, seed 42

Plate 42 of 52 · one of one

Traits

Palette: Opal
Structure: Thrust
Event: None
Faults: One
Scale: Standard
Hang: Level
Accent: Single
Heading: North-northeast, 26.2°
Speed: 3.12 cm a year

History

The past. The Easter plate is all deep ocean, nowhere shallower than about 1,000 metres, so when the ice age sea stood about 130 metres lower none of it became land, and the winter sea ice stayed more than 3,000 kilometres to the south. A global reconstruction puts the sea surface here about 4 degrees colder at the glacial peak, near 19 degrees, warming mostly between about 15,800 and 6,800 years ago. Easter Island itself lies 326 kilometres to the east, on the Nazca plate.

5.2 million years ago: This microplate was born when a new spreading rift began to push north beside the East Pacific Rise.

Sources: Lambeck et al. 2014, PNAS 111:15296; Lhardy et al. 2021, Climate of the Past 17:1139; Osman et al. 2021, Nature 599:239 · Rusby and Searle 1995, Journal of Geophysical Research 100:12617 · Naar and Hey 1991, Journal of Geophysical Research 96:7961

Onchain

The file

93,701bytes, the whole work

74,112bytes of code that draws it

3,644bytes of its record, plain text

0network requests

One HTML file, to be etched to Ethereum in full: the code that draws the work (151,144 bytes before compression), this plate’s settings and its record. Nothing is fetched from anywhere else. It reads your clock and slides the view to where the plate is today.

engine sha256 a7fbc03acc0fc9ba343881bb88ddaf2b7564564d8bc9cbed16e75e47e01fb3f2

The record inside it

The plate: Easter, a micro plate in Bird’s PB2002 model: 166,982 km², 100% ocean
Its motion: A pole at 25.19°N 67.48°E turning 11.337° per million years; at its centre 3.1 cm a year, heading north-northeast
What covers it: deep ocean 69%, slope and ridge 31%
Its past: Its account of the last 30,000 years, with its source
Deep history: One dated events, the oldest 5.2 million years ago, each with its source
Its outline: 64 points, to a hundredth of a degree
Licence: CC0 1.0, no rights reserved

Read the record

Sources

The plate, its outline and its motionBird, P. (2003). An updated digital model of plate boundaries. Geochemistry, Geophysics, Geosystems 4(3), 1027.
What covers it, which chose the paletteESA CCI Land Cover and Water Bodies, ETOPO 2022, Köppen-Geiger climate maps, NSIDC Sea Ice Index.

Easter

Finished